From b71d589071aa91e7d761032a4faf4727849da4e7 Mon Sep 17 00:00:00 2001
From: Bill Hance <william.hance@sourceability.com>
Date: Wed, 24 Apr 2019 00:12:49 -0700
Subject: [PATCH 01/56] Added FormInterface to @return Form::getClickedButton
 docblock

---
 src/Symfony/Component/Form/Form.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/Form/Form.php b/src/Symfony/Component/Form/Form.php
index 5f417d6d90901..3e8d632d939a0 100644
--- a/src/Symfony/Component/Form/Form.php
+++ b/src/Symfony/Component/Form/Form.php
@@ -89,7 +89,7 @@ class Form implements \IteratorAggregate, FormInterface
     private $submitted = false;
 
     /**
-     * @var ClickableInterface|null The button that was used to submit the form
+     * @var FormInterface|ClickableInterface|null The button that was used to submit the form
      */
     private $clickedButton;
 
@@ -749,7 +749,7 @@ public function isValid()
     /**
      * Returns the button that was used to submit the form.
      *
-     * @return ClickableInterface|null
+     * @return FormInterface|ClickableInterface|null
      */
     public function getClickedButton()
     {

From 11ee84c09ea9dfa4a433932ddc7fcb34c74a34aa Mon Sep 17 00:00:00 2001
From: Hamza Amrouche <laharl.moon@gmail.com>
Date: Wed, 17 Apr 2019 16:07:28 +0200
Subject: [PATCH 02/56] minor: ChoiceType callable deprecation after/before
 seems wrong

That is on me 3 years ago !
---
 UPGRADE-4.0.md | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
index fbe988fa3497f..5703b4a5a7408 100644
--- a/UPGRADE-4.0.md
+++ b/UPGRADE-4.0.md
@@ -297,19 +297,17 @@ Form
    `ArrayAccess` in `ResizeFormListener::preSubmit` method has been removed.
 
  * Using callable strings as choice options in ChoiceType is not supported
-   anymore in favor of passing PropertyPath instances.
+   anymore.
 
    Before:
 
    ```php
-   'choice_value' => new PropertyPath('range'),
    'choice_label' => 'strtoupper',
    ```
 
    After:
 
    ```php
-   'choice_value' => 'range',
    'choice_label' => function ($choice) {
        return strtoupper($choice);
    },

From 30b560c4df3066cfc20459f4339c3c97e9905828 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 22 May 2019 16:48:58 +0200
Subject: [PATCH 03/56] [github] define 4.4 as the feature branch

---
 .github/PULL_REQUEST_TEMPLATE.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 426b55def0001..3d686194101c0 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,6 +1,6 @@
 | Q             | A
 | ------------- | ---
-| Branch?       | master for features / 3.4, 4.2 or 4.3 for bug fixes <!-- see below -->
+| Branch?       | 4.4 for features / 3.4, 4.2 or 4.3 for bug fixes <!-- see below -->
 | Bug fix?      | yes/no
 | New feature?  | yes/no <!-- please update src/**/CHANGELOG.md files -->
 | BC breaks?    | no     <!-- see https://symfony.com/bc -->
@@ -17,5 +17,6 @@ understand your PR and can be used as a start for the documentation.
 Additionally (see https://symfony.com/roadmap):
  - Bug fixes must be submitted against the lowest maintained branch where they apply
    (lowest branches are regularly merged to upper ones so they get the fixes too).
- - Features and deprecations must be submitted against the master branch.
+ - Features and deprecations must be submitted against branch 4.4.
+ - Legacy code removals go to the master branch.
 -->

From bb9a67df3b7577cf02967ce30e9b6f113657542d Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Tue, 28 May 2019 11:38:37 +0200
Subject: [PATCH 04/56] bumped Symfony version to 3.4.29

---
 src/Symfony/Component/HttpKernel/Kernel.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 01a0224cd99d1..092fb6c762717 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -67,12 +67,12 @@ abstract class Kernel implements KernelInterface, RebootableInterface, Terminabl
     private $requestStackSize = 0;
     private $resetServices = false;
 
-    const VERSION = '3.4.28';
-    const VERSION_ID = 30428;
+    const VERSION = '3.4.29-DEV';
+    const VERSION_ID = 30429;
     const MAJOR_VERSION = 3;
     const MINOR_VERSION = 4;
-    const RELEASE_VERSION = 28;
-    const EXTRA_VERSION = '';
+    const RELEASE_VERSION = 29;
+    const EXTRA_VERSION = 'DEV';
 
     const END_OF_MAINTENANCE = '11/2020';
     const END_OF_LIFE = '11/2021';

From 0cef5f3ec9b7c9ab47842c7b6f9f2b8cf77cdd8a Mon Sep 17 00:00:00 2001
From: mmokhi <mokhi64@gmail.com>
Date: Fri, 24 May 2019 19:14:44 +0200
Subject: [PATCH 05/56] Use AsserEquals for floating-point values

Use AssertEquals for these two specific case will do a better job,
since it'll convert both '0.1' and result of `getContent()` into PHP's
internal representation of floating-point and compares them and it should be fine.
Using `AssertSame` for this tests brings floating-point serialization
into consideration which of course will be php.ini specific.

In order not missing the type assertion point that `AssertSame` does,
we also perform `assertInternalType('string'...`

Sponsored-by: Platform.sh
---
 .../Component/HttpFoundation/Tests/JsonResponseTest.php     | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
index 5425896dfa3b7..ef0346cbe6dae 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php
@@ -52,7 +52,8 @@ public function testConstructorWithSimpleTypes()
         $this->assertSame('0', $response->getContent());
 
         $response = new JsonResponse(0.1);
-        $this->assertSame('0.1', $response->getContent());
+        $this->assertEquals('0.1', $response->getContent());
+        $this->assertInternalType('string', $response->getContent());
 
         $response = new JsonResponse(true);
         $this->assertSame('true', $response->getContent());
@@ -140,7 +141,8 @@ public function testStaticCreateWithSimpleTypes()
 
         $response = JsonResponse::create(0.1);
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\JsonResponse', $response);
-        $this->assertSame('0.1', $response->getContent());
+        $this->assertEquals('0.1', $response->getContent());
+        $this->assertInternalType('string', $response->getContent());
 
         $response = JsonResponse::create(true);
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\JsonResponse', $response);

From a662f61e089800b0b4c379a4f64dd49468d431a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vilius=20Grigali=C5=ABnas?= <vilius.grigaliunas@gmail.com>
Date: Fri, 24 May 2019 11:41:23 +0300
Subject: [PATCH 06/56] [HttpFoundation] Do not set X-Accel-Redirect for paths
 outside of X-Accel-Mapping

Currently BinaryFileResponse, when configured with X-Accel-Redirect sendfile type,
will only substitute file paths specified in X-Accel-Mapping. But if the provided
file path does not have a defined prefix, then the resulting header will include
the absolute path. Nginx expects a valid URI, therefore this will result in an
issue that is very hard to detect and debug as it will not show up in error logs
and instead the request would just hang for some time and then be re-served
without query parameters(?).
---
 .../Component/HttpFoundation/BinaryFileResponse.php      | 9 +++++++--
 .../HttpFoundation/Tests/BinaryFileResponseTest.php      | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/HttpFoundation/BinaryFileResponse.php b/src/Symfony/Component/HttpFoundation/BinaryFileResponse.php
index cf648dfe9d54f..6c9a995e9a316 100644
--- a/src/Symfony/Component/HttpFoundation/BinaryFileResponse.php
+++ b/src/Symfony/Component/HttpFoundation/BinaryFileResponse.php
@@ -227,13 +227,18 @@ public function prepare(Request $request)
 
                         if (substr($path, 0, \strlen($pathPrefix)) === $pathPrefix) {
                             $path = $location.substr($path, \strlen($pathPrefix));
+                            // Only set X-Accel-Redirect header if a valid URI can be produced
+                            // as nginx does not serve arbitrary file paths.
+                            $this->headers->set($type, $path);
+                            $this->maxlen = 0;
                             break;
                         }
                     }
                 }
+            } else {
+                $this->headers->set($type, $path);
+                $this->maxlen = 0;
             }
-            $this->headers->set($type, $path);
-            $this->maxlen = 0;
         } elseif ($request->headers->has('Range')) {
             // Process the range headers.
             if (!$request->headers->has('If-Range') || $this->hasValidIfRangeHeader($request->headers->get('If-Range'))) {
diff --git a/src/Symfony/Component/HttpFoundation/Tests/BinaryFileResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/BinaryFileResponseTest.php
index c89f20d05a498..853b4bb3dfe11 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/BinaryFileResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/BinaryFileResponseTest.php
@@ -338,6 +338,7 @@ public function getSampleXAccelMappings()
         return [
             ['/var/www/var/www/files/foo.txt', '/var/www/=/files/', '/files/var/www/files/foo.txt'],
             ['/home/foo/bar.txt', '/var/www/=/files/,/home/foo/=/baz/', '/baz/bar.txt'],
+            ['/tmp/bar.txt', '"/var/www/"="/files/", "/home/Foo/"="/baz/"', null],
         ];
     }
 

From bf782ecb38eddc5b6856552a536df4c965f3b0e4 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Thu, 30 May 2019 16:12:14 +0200
Subject: [PATCH 07/56] Disable php_unit_mock_short_will_return rule of php-cs

---
 .php_cs.dist | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.php_cs.dist b/.php_cs.dist
index 8523be670698e..8cc2c0a05bd61 100644
--- a/.php_cs.dist
+++ b/.php_cs.dist
@@ -18,6 +18,8 @@ return PhpCsFixer\Config::create()
         'native_function_invocation' => ['include' => ['@compiler_optimized'], 'scope' => 'namespaced'],
         // Part of future @Symfony ruleset in PHP-CS-Fixer To be removed from the config file once upgrading
         'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
+        // Part of @Symfony:risky in PHP-CS-Fixer 2.15.0. Incompatible with PHPUnit 4 that is required for Symfony 3.4
+        'php_unit_mock_short_will_return' => false,
     ])
     ->setRiskyAllowed(true)
     ->setFinder(

From 4fb67df612b46f0fb508e852c9b729dfb531ffd6 Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Thu, 30 May 2019 16:56:20 +0200
Subject: [PATCH 08/56] Use willReturn() instead of will(returnValue()).

---
 .php_cs.dist                                  |   2 -
 .../DoctrineDataCollectorTest.php             |   8 +-
 .../DoctrineExtensionTest.php                 |   4 +-
 .../DoctrineParserCacheTest.php               |   4 +-
 .../Tests/Form/DoctrineOrmTypeGuesserTest.php |  22 ++--
 .../Form/Type/EntityTypePerformanceTest.php   |   4 +-
 .../Tests/Form/Type/EntityTypeTest.php        |   4 +-
 .../Security/User/EntityUserProviderTest.php  |   2 +-
 .../Constraints/UniqueEntityValidatorTest.php |  24 ++--
 .../Tests/Handler/ConsoleHandlerTest.php      |   8 +-
 .../Tests/Processor/WebProcessorTest.php      |   4 +-
 .../Extension/HttpKernelExtensionTest.php     |   8 +-
 .../Tests/CacheWarmer/TemplateFinderTest.php  |   2 +-
 .../TemplatePathsCacheWarmerTest.php          |   6 +-
 .../Tests/Command/RouterDebugCommandTest.php  |   6 +-
 .../Tests/Command/RouterMatchCommandTest.php  |   8 +-
 .../Command/TranslationDebugCommandTest.php   |  32 +++---
 .../Command/TranslationUpdateCommandTest.php  |  36 +++---
 .../Tests/Console/ApplicationTest.php         |  10 +-
 .../Controller/ControllerNameParserTest.php   |  10 +-
 .../Controller/ControllerResolverTest.php     |   2 +-
 .../Tests/Controller/ControllerTraitTest.php  |  10 +-
 .../Controller/RedirectControllerTest.php     |  20 ++--
 .../Controller/TemplateControllerTest.php     |   8 +-
 .../Tests/Routing/RouterTest.php              |   4 +-
 .../Tests/Templating/DelegatingEngineTest.php |   8 +-
 .../Tests/Templating/GlobalVariablesTest.php  |   6 +-
 .../Templating/Loader/TemplateLocatorTest.php |   2 +-
 .../Templating/TemplateNameParserTest.php     |   4 +-
 .../Tests/Templating/TimedPhpEngineTest.php   |   6 +-
 .../Tests/Translation/TranslatorTest.php      |  32 +++---
 .../ConstraintValidatorFactoryTest.php        |   2 +-
 .../Security/Factory/AbstractFactoryTest.php  |   6 +-
 .../Controller/PreviewErrorControllerTest.php |   2 +-
 .../Tests/Loader/FilesystemLoaderTest.php     |  10 +-
 .../TwigBundle/Tests/TemplateIteratorTest.php |   8 +-
 .../Controller/ProfilerControllerTest.php     |   6 +-
 .../Csp/ContentSecurityPolicyHandlerTest.php  |   2 +-
 .../WebDebugToolbarListenerTest.php           |  10 +-
 .../Tests/Profiler/TemplateManagerTest.php    |   8 +-
 .../Component/Asset/Tests/PathPackageTest.php |   2 +-
 .../Component/Asset/Tests/UrlPackageTest.php  |   2 +-
 .../Cache/Tests/Adapter/ChainAdapterTest.php  |   4 +-
 .../Tests/Adapter/TagAwareAdapterTest.php     |   4 +-
 .../Cache/Tests/Simple/ChainCacheTest.php     |   4 +-
 .../Tests/Loader/DelegatingLoaderTest.php     |   8 +-
 .../Tests/Loader/LoaderResolverTest.php       |   2 +-
 .../Config/Tests/Loader/LoaderTest.php        |  12 +-
 .../Console/Tests/ApplicationTest.php         |   4 +-
 .../Console/Tests/Command/CommandTest.php     |   2 +-
 .../Helper/AbstractQuestionHelperTest.php     |   2 +-
 .../Console/Tests/Helper/HelperSetTest.php    |   2 +-
 .../Tests/Helper/QuestionHelperTest.php       |   2 +-
 .../Helper/SymfonyQuestionHelperTest.php      |   2 +-
 .../Tests/Logger/ConsoleLoggerTest.php        |   2 +-
 .../Debug/Tests/ErrorHandlerTest.php          |  10 +-
 .../Compiler/AutowireExceptionPassTest.php    |  20 ++--
 .../MergeExtensionConfigurationPassTest.php   |  12 +-
 ...ContainerParametersResourceCheckerTest.php |   4 +-
 .../Tests/ContainerBuilderTest.php            |   4 +-
 .../Component/DomCrawler/Tests/FormTest.php   |   4 +-
 .../Tests/ImmutableEventDispatcherTest.php    |   6 +-
 .../Tests/ExpressionLanguageTest.php          |  20 ++--
 .../Tests/Iterator/FilterIteratorTest.php     |   4 +-
 .../Form/Tests/AbstractDivLayoutTest.php      |   2 +-
 .../Form/Tests/AbstractRequestHandlerTest.php |   4 +-
 .../Form/Tests/AbstractTableLayoutTest.php    |   2 +-
 .../Factory/CachingFactoryDecoratorTest.php   |  74 ++++++------
 .../Factory/PropertyAccessDecoratorTest.php   |  72 ++++++------
 .../Tests/ChoiceList/LazyChoiceListTest.php   |  30 ++---
 .../Component/Form/Tests/CompoundFormTest.php |  42 +++----
 .../DataTransformerChainTest.php              |   8 +-
 .../Csrf/Type/FormTypeCsrfExtensionTest.php   |  16 +--
 .../DataCollector/FormDataCollectorTest.php   | 106 +++++++++---------
 .../DataCollector/FormDataExtractorTest.php   |   8 +-
 .../Type/FormTypeValidatorExtensionTest.php   |   2 +-
 .../Component/Form/Tests/FormBuilderTest.php  |   8 +-
 .../Component/Form/Tests/FormFactoryTest.php  | 100 ++++++++---------
 .../Form/Tests/ResolvedFormTypeTest.php       |  40 +++----
 .../Component/Form/Tests/SimpleFormTest.php   |   8 +-
 .../HttpFoundation/Tests/File/FileTest.php    |   2 +-
 .../Handler/MemcacheSessionHandlerTest.php    |   4 +-
 .../Handler/MemcachedSessionHandlerTest.php   |   6 +-
 .../Handler/MongoDbSessionHandlerTest.php     |  32 +++---
 .../Storage/Handler/PdoSessionHandlerTest.php |  10 +-
 .../Handler/WriteCheckSessionHandlerTest.php  |  10 +-
 .../Storage/Proxy/SessionHandlerProxyTest.php |   8 +-
 .../CacheWarmer/CacheWarmerAggregateTest.php  |   2 +-
 .../Component/HttpKernel/Tests/ClientTest.php |   2 +-
 .../Tests/Config/FileLocatorTest.php          |   2 +-
 .../ContainerControllerResolverTest.php       |  32 +++---
 .../Controller/ControllerResolverTest.php     |   2 +-
 .../DataCollector/LoggerDataCollectorTest.php |   8 +-
 .../DataCollector/TimeDataCollectorTest.php   |   2 +-
 .../Debug/TraceableEventDispatcherTest.php    |   8 +-
 .../LazyLoadingFragmentHandlerTest.php        |  16 +--
 .../AddRequestFormatsListenerTest.php         |   2 +-
 .../DebugHandlersListenerTest.php             |   2 +-
 .../EventListener/ExceptionListenerTest.php   |   8 +-
 .../EventListener/LocaleListenerTest.php      |   6 +-
 .../EventListener/ProfilerListenerTest.php    |   2 +-
 .../EventListener/RouterListenerTest.php      |   8 +-
 .../EventListener/TestSessionListenerTest.php |  12 +-
 .../EventListener/TranslatorListenerTest.php  |   2 +-
 .../Tests/Fragment/FragmentHandlerTest.php    |   4 +-
 .../Fragment/InlineFragmentRendererTest.php   |  14 +--
 .../HttpKernel/Tests/HttpCache/EsiTest.php    |   4 +-
 .../HttpKernel/Tests/HttpCache/SsiTest.php    |   4 +-
 .../HttpKernel/Tests/HttpKernelTest.php       |   4 +-
 .../Component/HttpKernel/Tests/KernelTest.php |  56 ++++-----
 .../HttpKernel/Tests/Log/LoggerTest.php       |   2 +-
 .../Bundle/Reader/BundleEntryReaderTest.php   |  58 +++++-----
 .../Component/Ldap/Tests/LdapClientTest.php   |   6 +-
 src/Symfony/Component/Ldap/Tests/LdapTest.php |   2 +-
 .../Tests/ProcessFailedExceptionTest.php      |  26 ++---
 .../Tests/PropertyAccessorCollectionTest.php  |   6 +-
 .../Loader/AnnotationClassLoaderTest.php      |  26 ++---
 .../Loader/AnnotationDirectoryLoaderTest.php  |  10 +-
 .../Tests/Loader/AnnotationFileLoaderTest.php |   2 +-
 .../Tests/Loader/ObjectRouteLoaderTest.php    |   2 +-
 .../Matcher/RedirectableUrlMatcherTest.php    |  10 +-
 .../Tests/RouteCollectionBuilderTest.php      |  18 +--
 .../Component/Routing/Tests/RouterTest.php    |   6 +-
 .../AuthenticationProviderManagerTest.php     |   4 +-
 .../AnonymousAuthenticationProviderTest.php   |   2 +-
 .../DaoAuthenticationProviderTest.php         |  36 +++---
 .../LdapBindAuthenticationProviderTest.php    |  10 +-
 ...uthenticatedAuthenticationProviderTest.php |  12 +-
 .../RememberMeAuthenticationProviderTest.php  |   6 +-
 .../SimpleAuthenticationProviderTest.php      |  12 +-
 .../UserAuthenticationProviderTest.php        |  28 ++---
 .../Token/AbstractTokenTest.php               |   2 +-
 .../Token/RememberMeTokenTest.php             |   2 +-
 .../AccessDecisionManagerTest.php             |   6 +-
 .../AuthorizationCheckerTest.php              |   8 +-
 .../Voter/ExpressionVoterTest.php             |   4 +-
 .../Authorization/Voter/RoleVoterTest.php     |   2 +-
 .../Tests/Encoder/UserPasswordEncoderTest.php |  14 +--
 .../Security/Core/Tests/SecurityTest.php      |  10 +-
 .../Core/Tests/User/ChainUserProviderTest.php |  16 +--
 .../Core/Tests/User/LdapUserProviderTest.php  |  86 +++++++-------
 .../Core/Tests/User/UserCheckerTest.php       |  22 ++--
 .../Constraints/UserPasswordValidatorTest.php |  14 +--
 .../Csrf/Tests/CsrfTokenManagerTest.php       |  22 ++--
 .../FormLoginAuthenticatorTest.php            |   4 +-
 .../GuardAuthenticationListenerTest.php       |  34 +++---
 .../Tests/GuardAuthenticatorHandlerTest.php   |   8 +-
 .../GuardAuthenticationProviderTest.php       |  28 ++---
 .../Security/Http/Tests/AccessMapTest.php     |   2 +-
 ...efaultAuthenticationFailureHandlerTest.php |  18 +--
 ...efaultAuthenticationSuccessHandlerTest.php |   4 +-
 .../SimpleAuthenticationHandlerTest.php       |  20 ++--
 .../FormAuthenticationEntryPointTest.php      |   6 +-
 .../AbstractPreAuthenticatedListenerTest.php  |  32 +++---
 .../Tests/Firewall/AccessListenerTest.php     |  32 +++---
 .../AnonymousAuthenticationListenerTest.php   |   6 +-
 .../BasicAuthenticationListenerTest.php       |  24 ++--
 .../Tests/Firewall/ChannelListenerTest.php    |  28 ++---
 .../Tests/Firewall/ContextListenerTest.php    |  22 ++--
 .../DigestAuthenticationListenerTest.php      |   4 +-
 .../Tests/Firewall/ExceptionListenerTest.php  |  14 +--
 .../Tests/Firewall/LogoutListenerTest.php     |  26 ++---
 .../Tests/Firewall/RememberMeListenerTest.php |  70 ++++++------
 .../SimplePreAuthenticationListenerTest.php   |   8 +-
 .../Tests/Firewall/SwitchUserListenerTest.php |  18 +--
 ...PasswordFormAuthenticationListenerTest.php |  10 +-
 ...PasswordJsonAuthenticationListenerTest.php |   2 +-
 .../Security/Http/Tests/FirewallMapTest.php   |   8 +-
 .../Security/Http/Tests/FirewallTest.php      |   6 +-
 .../Security/Http/Tests/HttpUtilsTest.php     |  14 +--
 .../DefaultLogoutSuccessHandlerTest.php       |   2 +-
 .../Tests/Logout/SessionLogoutHandlerTest.php |   2 +-
 .../AbstractRememberMeServicesTest.php        |  26 ++---
 ...istentTokenBasedRememberMeServicesTest.php |  22 ++--
 .../Tests/RememberMe/ResponseListenerTest.php |   6 +-
 .../TokenBasedRememberMeServicesTest.php      |  24 ++--
 .../SessionAuthenticationStrategyTest.php     |   2 +-
 .../Tests/Encoder/ChainDecoderTest.php        |   8 +-
 .../Tests/Encoder/ChainEncoderTest.php        |   8 +-
 .../Factory/CacheMetadataFactoryTest.php      |   4 +-
 .../Factory/ClassMetadataFactoryTest.php      |   4 +-
 .../Normalizer/ArrayDenormalizerTest.php      |   8 +-
 .../Normalizer/GetSetMethodNormalizerTest.php |   2 +-
 .../JsonSerializableNormalizerTest.php        |   8 +-
 .../Tests/Normalizer/ObjectNormalizerTest.php |   2 +-
 .../Templating/Tests/DelegatingEngineTest.php |  10 +-
 .../TranslationDataCollectorTest.php          |   4 +-
 .../Tests/MessageCatalogueTest.php            |  14 +--
 .../Translation/Tests/TranslatorCacheTest.php |   6 +-
 .../Test/ConstraintValidatorTestCase.php      |   6 +-
 .../Constraints/ExpressionValidatorTest.php   |   4 +-
 .../Tests/Constraints/FileValidatorTest.php   |  16 +--
 ...ontainerConstraintValidatorFactoryTest.php |   2 +-
 .../Tests/Mapping/Cache/AbstractCacheTest.php |   6 +-
 .../LazyLoadingMetadataFactoryTest.php        |   6 +-
 .../Tests/Mapping/Loader/LoaderChainTest.php  |   8 +-
 .../Tests/Validator/AbstractTest.php          |   4 +-
 .../Component/Workflow/Tests/RegistryTest.php |   4 +-
 198 files changed, 1225 insertions(+), 1227 deletions(-)

diff --git a/.php_cs.dist b/.php_cs.dist
index 8cc2c0a05bd61..8523be670698e 100644
--- a/.php_cs.dist
+++ b/.php_cs.dist
@@ -18,8 +18,6 @@ return PhpCsFixer\Config::create()
         'native_function_invocation' => ['include' => ['@compiler_optimized'], 'scope' => 'namespaced'],
         // Part of future @Symfony ruleset in PHP-CS-Fixer To be removed from the config file once upgrading
         'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
-        // Part of @Symfony:risky in PHP-CS-Fixer 2.15.0. Incompatible with PHPUnit 4 that is required for Symfony 3.4
-        'php_unit_mock_short_will_return' => false,
     ])
     ->setRiskyAllowed(true)
     ->setFinder(
diff --git a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
index 186610820c085..32b4aa730cad3 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
@@ -166,20 +166,20 @@ private function createCollector($queries)
             ->getMock();
         $connection->expects($this->any())
             ->method('getDatabasePlatform')
-            ->will($this->returnValue(new MySqlPlatform()));
+            ->willReturn(new MySqlPlatform());
 
         $registry = $this->getMockBuilder('Doctrine\Common\Persistence\ManagerRegistry')->getMock();
         $registry
             ->expects($this->any())
             ->method('getConnectionNames')
-            ->will($this->returnValue(['default' => 'doctrine.dbal.default_connection']));
+            ->willReturn(['default' => 'doctrine.dbal.default_connection']);
         $registry
             ->expects($this->any())
             ->method('getManagerNames')
-            ->will($this->returnValue(['default' => 'doctrine.orm.default_entity_manager']));
+            ->willReturn(['default' => 'doctrine.orm.default_entity_manager']);
         $registry->expects($this->any())
             ->method('getConnection')
-            ->will($this->returnValue($connection));
+            ->willReturn($connection);
 
         $logger = $this->getMockBuilder('Doctrine\DBAL\Logging\DebugStack')->getMock();
         $logger->queries = $queries;
diff --git a/src/Symfony/Bridge/Doctrine/Tests/DependencyInjection/DoctrineExtensionTest.php b/src/Symfony/Bridge/Doctrine/Tests/DependencyInjection/DoctrineExtensionTest.php
index 0f53d0952c14b..fb9becd072943 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/DependencyInjection/DoctrineExtensionTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/DependencyInjection/DoctrineExtensionTest.php
@@ -44,9 +44,9 @@ protected function setUp()
 
         $this->extension->expects($this->any())
             ->method('getObjectManagerElementName')
-            ->will($this->returnCallback(function ($name) {
+            ->willReturnCallback(function ($name) {
                 return 'doctrine.orm.'.$name;
-            }));
+            });
     }
 
     /**
diff --git a/src/Symfony/Bridge/Doctrine/Tests/ExpressionLanguage/DoctrineParserCacheTest.php b/src/Symfony/Bridge/Doctrine/Tests/ExpressionLanguage/DoctrineParserCacheTest.php
index 394b1b0dfe9a2..e376f0a422368 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/ExpressionLanguage/DoctrineParserCacheTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/ExpressionLanguage/DoctrineParserCacheTest.php
@@ -26,7 +26,7 @@ public function testFetch()
 
         $doctrineCacheMock->expects($this->once())
             ->method('fetch')
-            ->will($this->returnValue('bar'));
+            ->willReturn('bar');
 
         $result = $parserCache->fetch('foo');
 
@@ -41,7 +41,7 @@ public function testFetchUnexisting()
         $doctrineCacheMock
             ->expects($this->once())
             ->method('fetch')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->assertNull($parserCache->fetch(''));
     }
diff --git a/src/Symfony/Bridge/Doctrine/Tests/Form/DoctrineOrmTypeGuesserTest.php b/src/Symfony/Bridge/Doctrine/Tests/Form/DoctrineOrmTypeGuesserTest.php
index c323385ff1929..d2e101b4cdc58 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Form/DoctrineOrmTypeGuesserTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Form/DoctrineOrmTypeGuesserTest.php
@@ -34,47 +34,47 @@ public function requiredProvider()
         // Simple field, not nullable
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
         $classMetadata->fieldMappings['field'] = true;
-        $classMetadata->expects($this->once())->method('isNullable')->with('field')->will($this->returnValue(false));
+        $classMetadata->expects($this->once())->method('isNullable')->with('field')->willReturn(false);
 
         $return[] = [$classMetadata, new ValueGuess(true, Guess::HIGH_CONFIDENCE)];
 
         // Simple field, nullable
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
         $classMetadata->fieldMappings['field'] = true;
-        $classMetadata->expects($this->once())->method('isNullable')->with('field')->will($this->returnValue(true));
+        $classMetadata->expects($this->once())->method('isNullable')->with('field')->willReturn(true);
 
         $return[] = [$classMetadata, new ValueGuess(false, Guess::MEDIUM_CONFIDENCE)];
 
         // One-to-one, nullable (by default)
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
-        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->will($this->returnValue(true));
+        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->willReturn(true);
 
         $mapping = ['joinColumns' => [[]]];
-        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->will($this->returnValue($mapping));
+        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->willReturn($mapping);
 
         $return[] = [$classMetadata, new ValueGuess(false, Guess::HIGH_CONFIDENCE)];
 
         // One-to-one, nullable (explicit)
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
-        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->will($this->returnValue(true));
+        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->willReturn(true);
 
         $mapping = ['joinColumns' => [['nullable' => true]]];
-        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->will($this->returnValue($mapping));
+        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->willReturn($mapping);
 
         $return[] = [$classMetadata, new ValueGuess(false, Guess::HIGH_CONFIDENCE)];
 
         // One-to-one, not nullable
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
-        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->will($this->returnValue(true));
+        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->willReturn(true);
 
         $mapping = ['joinColumns' => [['nullable' => false]]];
-        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->will($this->returnValue($mapping));
+        $classMetadata->expects($this->once())->method('getAssociationMapping')->with('field')->willReturn($mapping);
 
         $return[] = [$classMetadata, new ValueGuess(true, Guess::HIGH_CONFIDENCE)];
 
         // One-to-many, no clue
         $classMetadata = $this->getMockBuilder('Doctrine\ORM\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
-        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->will($this->returnValue(false));
+        $classMetadata->expects($this->once())->method('isAssociationWithSingleJoinColumn')->with('field')->willReturn(false);
 
         $return[] = [$classMetadata, null];
 
@@ -84,10 +84,10 @@ public function requiredProvider()
     private function getGuesser(ClassMetadata $classMetadata)
     {
         $em = $this->getMockBuilder('Doctrine\Common\Persistence\ObjectManager')->getMock();
-        $em->expects($this->once())->method('getClassMetaData')->with('TestEntity')->will($this->returnValue($classMetadata));
+        $em->expects($this->once())->method('getClassMetaData')->with('TestEntity')->willReturn($classMetadata);
 
         $registry = $this->getMockBuilder('Doctrine\Common\Persistence\ManagerRegistry')->getMock();
-        $registry->expects($this->once())->method('getManagers')->will($this->returnValue([$em]));
+        $registry->expects($this->once())->method('getManagers')->willReturn([$em]);
 
         return new DoctrineOrmTypeGuesser($registry);
     }
diff --git a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypePerformanceTest.php b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypePerformanceTest.php
index 5012171542f7b..5dc184fb91009 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypePerformanceTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypePerformanceTest.php
@@ -38,11 +38,11 @@ protected function getExtensions()
 
         $manager->expects($this->any())
             ->method('getManager')
-            ->will($this->returnValue($this->em));
+            ->willReturn($this->em);
 
         $manager->expects($this->any())
             ->method('getManagerForClass')
-            ->will($this->returnValue($this->em));
+            ->willReturn($this->em);
 
         return [
             new CoreExtension(),
diff --git a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
index 1cb59c38436ef..7a806d76cd7fa 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
@@ -1087,7 +1087,7 @@ public function testGetManagerForClassIfNoEm()
         $this->emRegistry->expects($this->once())
             ->method('getManagerForClass')
             ->with(self::SINGLE_IDENT_CLASS)
-            ->will($this->returnValue($this->em));
+            ->willReturn($this->em);
 
         $this->factory->createNamed('name', static::TESTED_TYPE, null, [
             'class' => self::SINGLE_IDENT_CLASS,
@@ -1237,7 +1237,7 @@ protected function createRegistryMock($name, $em)
         $registry->expects($this->any())
             ->method('getManager')
             ->with($this->equalTo($name))
-            ->will($this->returnValue($em));
+            ->willReturn($em);
 
         return $registry;
     }
diff --git a/src/Symfony/Bridge/Doctrine/Tests/Security/User/EntityUserProviderTest.php b/src/Symfony/Bridge/Doctrine/Tests/Security/User/EntityUserProviderTest.php
index 7188a3abc1a75..e88a0a715c391 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Security/User/EntityUserProviderTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Security/User/EntityUserProviderTest.php
@@ -188,7 +188,7 @@ private function getManager($em, $name = null)
         $manager->expects($this->any())
             ->method('getManager')
             ->with($this->equalTo($name))
-            ->will($this->returnValue($em));
+            ->willReturn($em);
 
         return $manager;
     }
diff --git a/src/Symfony/Bridge/Doctrine/Tests/Validator/Constraints/UniqueEntityValidatorTest.php b/src/Symfony/Bridge/Doctrine/Tests/Validator/Constraints/UniqueEntityValidatorTest.php
index 60007eb8a3ba8..24a7f555f4f67 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Validator/Constraints/UniqueEntityValidatorTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Validator/Constraints/UniqueEntityValidatorTest.php
@@ -82,7 +82,7 @@ protected function createRegistryMock(ObjectManager $em = null)
         $registry->expects($this->any())
                  ->method('getManager')
                  ->with($this->equalTo(self::EM_NAME))
-                 ->will($this->returnValue($em));
+                 ->willReturn($em);
 
         return $registry;
     }
@@ -104,14 +104,14 @@ protected function createEntityManagerMock($repositoryMock)
         ;
         $em->expects($this->any())
             ->method('getRepository')
-            ->will($this->returnValue($repositoryMock))
+            ->willReturn($repositoryMock)
         ;
 
         $classMetadata = $this->getMockBuilder('Doctrine\Common\Persistence\Mapping\ClassMetadata')->getMock();
         $classMetadata
             ->expects($this->any())
             ->method('hasField')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $reflParser = $this->getMockBuilder('Doctrine\Common\Reflection\StaticReflectionParser')
             ->disableOriginalConstructor()
@@ -125,12 +125,12 @@ protected function createEntityManagerMock($repositoryMock)
         $refl
             ->expects($this->any())
             ->method('getValue')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $classMetadata->reflFields = ['name' => $refl];
         $em->expects($this->any())
             ->method('getClassMetadata')
-            ->will($this->returnValue($classMetadata))
+            ->willReturn($classMetadata)
         ;
 
         return $em;
@@ -366,7 +366,7 @@ public function testValidateUniquenessUsingCustomRepositoryMethod()
         $repository = $this->createRepositoryMock();
         $repository->expects($this->once())
             ->method('findByCustom')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
         $this->em = $this->createEntityManagerMock($repository);
         $this->registry = $this->createRegistryMock($this->em);
@@ -394,15 +394,15 @@ public function testValidateUniquenessWithUnrewoundArray()
         $repository = $this->createRepositoryMock();
         $repository->expects($this->once())
             ->method('findByCustom')
-            ->will(
-                $this->returnCallback(function () use ($entity) {
+            ->willReturnCallback(
+                function () use ($entity) {
                     $returnValue = [
                         $entity,
                     ];
                     next($returnValue);
 
                     return $returnValue;
-                })
+                }
             )
         ;
         $this->em = $this->createEntityManagerMock($repository);
@@ -430,7 +430,7 @@ public function testValidateResultTypes($entity1, $result)
         $repository = $this->createRepositoryMock();
         $repository->expects($this->once())
             ->method('findByCustom')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $this->em = $this->createEntityManagerMock($repository);
         $this->registry = $this->createRegistryMock($this->em);
@@ -564,7 +564,7 @@ public function testValidateUniquenessWithArrayValue()
 
         $repository->expects($this->once())
             ->method('findByCustom')
-            ->will($this->returnValue([$entity1]))
+            ->willReturn([$entity1])
         ;
 
         $this->em->persist($entity1);
@@ -635,7 +635,7 @@ public function testValidateUniquenessOnNullResult()
         $repository = $this->createRepositoryMock();
         $repository
              ->method('find')
-             ->will($this->returnValue(null))
+             ->willReturn(null)
         ;
 
         $this->em = $this->createEntityManagerMock($repository);
diff --git a/src/Symfony/Bridge/Monolog/Tests/Handler/ConsoleHandlerTest.php b/src/Symfony/Bridge/Monolog/Tests/Handler/ConsoleHandlerTest.php
index 0f042a90ae862..45a32dea84da4 100644
--- a/src/Symfony/Bridge/Monolog/Tests/Handler/ConsoleHandlerTest.php
+++ b/src/Symfony/Bridge/Monolog/Tests/Handler/ConsoleHandlerTest.php
@@ -50,7 +50,7 @@ public function testVerbosityMapping($verbosity, $level, $isHandling, array $map
         $output
             ->expects($this->atLeastOnce())
             ->method('getVerbosity')
-            ->will($this->returnValue($verbosity))
+            ->willReturn($verbosity)
         ;
         $handler = new ConsoleHandler($output, true, $map);
         $this->assertSame($isHandling, $handler->isHandling(['level' => $level]),
@@ -114,12 +114,12 @@ public function testVerbosityChanged()
         $output
             ->expects($this->at(0))
             ->method('getVerbosity')
-            ->will($this->returnValue(OutputInterface::VERBOSITY_QUIET))
+            ->willReturn(OutputInterface::VERBOSITY_QUIET)
         ;
         $output
             ->expects($this->at(1))
             ->method('getVerbosity')
-            ->will($this->returnValue(OutputInterface::VERBOSITY_DEBUG))
+            ->willReturn(OutputInterface::VERBOSITY_DEBUG)
         ;
         $handler = new ConsoleHandler($output);
         $this->assertFalse($handler->isHandling(['level' => Logger::NOTICE]),
@@ -144,7 +144,7 @@ public function testWritingAndFormatting()
         $output
             ->expects($this->any())
             ->method('getVerbosity')
-            ->will($this->returnValue(OutputInterface::VERBOSITY_DEBUG))
+            ->willReturn(OutputInterface::VERBOSITY_DEBUG)
         ;
         $output
             ->expects($this->once())
diff --git a/src/Symfony/Bridge/Monolog/Tests/Processor/WebProcessorTest.php b/src/Symfony/Bridge/Monolog/Tests/Processor/WebProcessorTest.php
index 4da83aa7d6d2c..a69ab75620364 100644
--- a/src/Symfony/Bridge/Monolog/Tests/Processor/WebProcessorTest.php
+++ b/src/Symfony/Bridge/Monolog/Tests/Processor/WebProcessorTest.php
@@ -95,10 +95,10 @@ private function createRequestEvent($additionalServerParameters = [])
             ->getMock();
         $event->expects($this->any())
             ->method('isMasterRequest')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request));
+            ->willReturn($request);
 
         return [$event, $server];
     }
diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/HttpKernelExtensionTest.php b/src/Symfony/Bridge/Twig/Tests/Extension/HttpKernelExtensionTest.php
index 9fe36b40c9063..22084ec1ae616 100644
--- a/src/Symfony/Bridge/Twig/Tests/Extension/HttpKernelExtensionTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Extension/HttpKernelExtensionTest.php
@@ -62,7 +62,7 @@ public function testUnknownFragmentRenderer()
     protected function getFragmentHandler($return)
     {
         $strategy = $this->getMockBuilder('Symfony\\Component\\HttpKernel\\Fragment\\FragmentRendererInterface')->getMock();
-        $strategy->expects($this->once())->method('getName')->will($this->returnValue('inline'));
+        $strategy->expects($this->once())->method('getName')->willReturn('inline');
         $strategy->expects($this->once())->method('render')->will($return);
 
         $context = $this->getMockBuilder('Symfony\\Component\\HttpFoundation\\RequestStack')
@@ -70,7 +70,7 @@ protected function getFragmentHandler($return)
             ->getMock()
         ;
 
-        $context->expects($this->any())->method('getCurrentRequest')->will($this->returnValue(Request::create('/')));
+        $context->expects($this->any())->method('getCurrentRequest')->willReturn(Request::create('/'));
 
         return new FragmentHandler($context, [$strategy], false);
     }
@@ -82,9 +82,9 @@ protected function renderTemplate(FragmentHandler $renderer, $template = '{{ ren
         $twig->addExtension(new HttpKernelExtension());
 
         $loader = $this->getMockBuilder('Twig\RuntimeLoader\RuntimeLoaderInterface')->getMock();
-        $loader->expects($this->any())->method('load')->will($this->returnValueMap([
+        $loader->expects($this->any())->method('load')->willReturnMap([
             ['Symfony\Bridge\Twig\Extension\HttpKernelRuntime', new HttpKernelRuntime($renderer)],
-        ]));
+        ]);
         $twig->addRuntimeLoader($loader);
 
         return $twig->render('index');
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplateFinderTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplateFinderTest.php
index 94b5432c3ab9b..c1b49c34f992c 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplateFinderTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplateFinderTest.php
@@ -34,7 +34,7 @@ public function testFindAllTemplates()
         $kernel
             ->expects($this->once())
             ->method('getBundles')
-            ->will($this->returnValue(['BaseBundle' => new BaseBundle()]))
+            ->willReturn(['BaseBundle' => new BaseBundle()])
         ;
 
         $parser = new TemplateFilenameParser();
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplatePathsCacheWarmerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplatePathsCacheWarmerTest.php
index 30d0242663723..b63c746eb60ca 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplatePathsCacheWarmerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/CacheWarmer/TemplatePathsCacheWarmerTest.php
@@ -68,13 +68,13 @@ public function testWarmUp()
         $this->templateFinder
             ->expects($this->once())
             ->method('findAllTemplates')
-            ->will($this->returnValue([$template]));
+            ->willReturn([$template]);
 
         $this->fileLocator
             ->expects($this->once())
             ->method('locate')
             ->with($template->getPath())
-            ->will($this->returnValue(\dirname($this->tmpDir).'/path/to/template.html.twig'));
+            ->willReturn(\dirname($this->tmpDir).'/path/to/template.html.twig');
 
         $warmer = new TemplatePathsCacheWarmer($this->templateFinder, $this->templateLocator);
         $warmer->warmUp($this->tmpDir);
@@ -87,7 +87,7 @@ public function testWarmUpEmpty()
         $this->templateFinder
             ->expects($this->once())
             ->method('findAllTemplates')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $this->fileLocator
             ->expects($this->never())
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterDebugCommandTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterDebugCommandTest.php
index 35a9e4ac0cb28..4790f271de3ff 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterDebugCommandTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterDebugCommandTest.php
@@ -82,7 +82,7 @@ private function getRouter()
         $router
             ->expects($this->any())
             ->method('getRouteCollection')
-            ->will($this->returnValue($routeCollection));
+            ->willReturn($routeCollection);
 
         return $router;
     }
@@ -93,13 +93,13 @@ private function getKernel()
         $container
             ->expects($this->atLeastOnce())
             ->method('has')
-            ->will($this->returnCallback(function ($id) {
+            ->willReturnCallback(function ($id) {
                 if ('console.command_loader' === $id) {
                     return false;
                 }
 
                 return true;
-            }))
+            })
         ;
         $container
             ->expects($this->any())
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterMatchCommandTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterMatchCommandTest.php
index a04ef46a90f38..e0bc2de0eb9f4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterMatchCommandTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/RouterMatchCommandTest.php
@@ -80,11 +80,11 @@ private function getRouter()
         $router
             ->expects($this->any())
             ->method('getRouteCollection')
-            ->will($this->returnValue($routeCollection));
+            ->willReturn($routeCollection);
         $router
             ->expects($this->any())
             ->method('getContext')
-            ->will($this->returnValue($requestContext));
+            ->willReturn($requestContext);
 
         return $router;
     }
@@ -95,9 +95,9 @@ private function getKernel()
         $container
             ->expects($this->atLeastOnce())
             ->method('has')
-            ->will($this->returnCallback(function ($id) {
+            ->willReturnCallback(function ($id) {
                 return 'console.command_loader' !== $id;
-            }))
+            })
         ;
         $container
             ->expects($this->any())
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationDebugCommandTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationDebugCommandTest.php
index 622033e897d90..cfa6e3b8a877e 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationDebugCommandTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationDebugCommandTest.php
@@ -136,26 +136,26 @@ private function createCommandTester($extractedMessages = [], $loadedMessages =
         $translator
             ->expects($this->any())
             ->method('getFallbackLocales')
-            ->will($this->returnValue(['en']));
+            ->willReturn(['en']);
 
         $extractor = $this->getMockBuilder('Symfony\Component\Translation\Extractor\ExtractorInterface')->getMock();
         $extractor
             ->expects($this->any())
             ->method('extract')
-            ->will(
-                $this->returnCallback(function ($path, $catalogue) use ($extractedMessages) {
+            ->willReturnCallback(
+                function ($path, $catalogue) use ($extractedMessages) {
                     $catalogue->add($extractedMessages);
-                })
+                }
             );
 
         $loader = $this->getMockBuilder('Symfony\Component\Translation\Reader\TranslationReader')->getMock();
         $loader
             ->expects($this->any())
             ->method('read')
-            ->will(
-                $this->returnCallback(function ($path, $catalogue) use ($loadedMessages) {
+            ->willReturnCallback(
+                function ($path, $catalogue) use ($loadedMessages) {
                     $catalogue->add($loadedMessages);
-                })
+                }
             );
 
         if (null === $kernel) {
@@ -173,23 +173,23 @@ private function createCommandTester($extractedMessages = [], $loadedMessages =
             $kernel
                 ->expects($this->any())
                 ->method('getBundle')
-                ->will($this->returnValueMap($returnValues));
+                ->willReturnMap($returnValues);
         }
 
         $kernel
             ->expects($this->any())
             ->method('getRootDir')
-            ->will($this->returnValue($this->translationDir));
+            ->willReturn($this->translationDir);
 
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $kernel
             ->expects($this->any())
             ->method('getContainer')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock()));
+            ->willReturn($this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock());
 
         $command = new TranslationDebugCommand($translator, $loader, $extractor, $this->translationDir.'/translations', $this->translationDir.'/templates');
 
@@ -214,23 +214,23 @@ public function testLegacyDebugCommand()
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
         $container
             ->expects($this->any())
             ->method('get')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 ['translation.extractor', 1, $extractor],
                 ['translation.reader', 1, $loader],
                 ['translator', 1, $translator],
                 ['kernel', 1, $kernel],
-            ]));
+            ]);
 
         $kernel
             ->expects($this->any())
             ->method('getContainer')
-            ->will($this->returnValue($container));
+            ->willReturn($container);
 
         $command = new TranslationDebugCommand();
         $command->setContainer($container);
@@ -250,7 +250,7 @@ private function getBundle($path)
         $bundle
             ->expects($this->any())
             ->method('getPath')
-            ->will($this->returnValue($path))
+            ->willReturn($path)
         ;
 
         return $bundle;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationUpdateCommandTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationUpdateCommandTest.php
index 87bc6c09e2eb9..7e487ff527113 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationUpdateCommandTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Command/TranslationUpdateCommandTest.php
@@ -114,36 +114,36 @@ private function createCommandTester($extractedMessages = [], $loadedMessages =
         $translator
             ->expects($this->any())
             ->method('getFallbackLocales')
-            ->will($this->returnValue(['en']));
+            ->willReturn(['en']);
 
         $extractor = $this->getMockBuilder('Symfony\Component\Translation\Extractor\ExtractorInterface')->getMock();
         $extractor
             ->expects($this->any())
             ->method('extract')
-            ->will(
-                $this->returnCallback(function ($path, $catalogue) use ($extractedMessages) {
+            ->willReturnCallback(
+                function ($path, $catalogue) use ($extractedMessages) {
                     foreach ($extractedMessages as $domain => $messages) {
                         $catalogue->add($messages, $domain);
                     }
-                })
+                }
             );
 
         $loader = $this->getMockBuilder('Symfony\Component\Translation\Reader\TranslationReader')->getMock();
         $loader
             ->expects($this->any())
             ->method('read')
-            ->will(
-                $this->returnCallback(function ($path, $catalogue) use ($loadedMessages) {
+            ->willReturnCallback(
+                function ($path, $catalogue) use ($loadedMessages) {
                     $catalogue->add($loadedMessages);
-                })
+                }
             );
 
         $writer = $this->getMockBuilder('Symfony\Component\Translation\Writer\TranslationWriter')->getMock();
         $writer
             ->expects($this->any())
             ->method('getFormats')
-            ->will(
-                $this->returnValue(['xlf', 'yml', 'yaml'])
+            ->willReturn(
+                ['xlf', 'yml', 'yaml']
             );
 
         if (null === $kernel) {
@@ -161,23 +161,23 @@ private function createCommandTester($extractedMessages = [], $loadedMessages =
             $kernel
                 ->expects($this->any())
                 ->method('getBundle')
-                ->will($this->returnValueMap($returnValues));
+                ->willReturnMap($returnValues);
         }
 
         $kernel
             ->expects($this->any())
             ->method('getRootDir')
-            ->will($this->returnValue($this->translationDir));
+            ->willReturn($this->translationDir);
 
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $kernel
             ->expects($this->any())
             ->method('getContainer')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock()));
+            ->willReturn($this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock());
 
         $command = new TranslationUpdateCommand($writer, $loader, $extractor, 'en', $this->translationDir.'/translations', $this->translationDir.'/templates');
 
@@ -203,24 +203,24 @@ public function testLegacyUpdateCommand()
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
         $container
             ->expects($this->any())
             ->method('get')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 ['translation.extractor', 1, $extractor],
                 ['translation.reader', 1, $loader],
                 ['translation.writer', 1, $writer],
                 ['translator', 1, $translator],
                 ['kernel', 1, $kernel],
-            ]));
+            ]);
 
         $kernel
             ->expects($this->any())
             ->method('getContainer')
-            ->will($this->returnValue($container));
+            ->willReturn($container);
 
         $command = new TranslationUpdateCommand();
         $command->setContainer($container);
@@ -240,7 +240,7 @@ private function getBundle($path)
         $bundle
             ->expects($this->any())
             ->method('getPath')
-            ->will($this->returnValue($path))
+            ->willReturn($path)
         ;
 
         return $bundle;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Console/ApplicationTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Console/ApplicationTest.php
index 8c25ef9672f45..fbc5a77339311 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Console/ApplicationTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Console/ApplicationTest.php
@@ -206,7 +206,7 @@ private function getKernel(array $bundles, $useDispatcher = false)
                 ->expects($this->atLeastOnce())
                 ->method('get')
                 ->with($this->equalTo('event_dispatcher'))
-                ->will($this->returnValue($dispatcher));
+                ->willReturn($dispatcher);
         }
 
         $container
@@ -226,12 +226,12 @@ private function getKernel(array $bundles, $useDispatcher = false)
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue($bundles))
+            ->willReturn($bundles)
         ;
         $kernel
             ->expects($this->any())
             ->method('getContainer')
-            ->will($this->returnValue($container))
+            ->willReturn($container)
         ;
 
         return $kernel;
@@ -243,9 +243,9 @@ private function createBundleMock(array $commands)
         $bundle
             ->expects($this->once())
             ->method('registerCommands')
-            ->will($this->returnCallback(function (Application $application) use ($commands) {
+            ->willReturnCallback(function (Application $application) use ($commands) {
                 $application->addCommands($commands);
-            }))
+            })
         ;
 
         return $bundle;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerNameParserTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerNameParserTest.php
index 66729f5fa4ea0..91a72821e9539 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerNameParserTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerNameParserTest.php
@@ -156,13 +156,13 @@ private function createParser()
         $kernel
             ->expects($this->any())
             ->method('getBundle')
-            ->will($this->returnCallback(function ($bundle) use ($bundles) {
+            ->willReturnCallback(function ($bundle) use ($bundles) {
                 if (!isset($bundles[$bundle])) {
                     throw new \InvalidArgumentException(sprintf('Invalid bundle name "%s"', $bundle));
                 }
 
                 return $bundles[$bundle];
-            }))
+            })
         ;
 
         $bundles = [
@@ -175,7 +175,7 @@ private function createParser()
         $kernel
             ->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue($bundles))
+            ->willReturn($bundles)
         ;
 
         return new ControllerNameParser($kernel);
@@ -184,8 +184,8 @@ private function createParser()
     private function getBundle($namespace, $name)
     {
         $bundle = $this->getMockBuilder('Symfony\Component\HttpKernel\Bundle\BundleInterface')->getMock();
-        $bundle->expects($this->any())->method('getName')->will($this->returnValue($name));
-        $bundle->expects($this->any())->method('getNamespace')->will($this->returnValue($namespace));
+        $bundle->expects($this->any())->method('getName')->willReturn($name);
+        $bundle->expects($this->any())->method('getNamespace')->willReturn($namespace);
 
         return $bundle;
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerResolverTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerResolverTest.php
index 93ce1527ba238..6af19862e6e83 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerResolverTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerResolverTest.php
@@ -55,7 +55,7 @@ public function testGetControllerWithBundleNotation()
         $parser->expects($this->once())
             ->method('parse')
             ->with($shortName)
-            ->will($this->returnValue('Symfony\Bundle\FrameworkBundle\Tests\Controller\ContainerAwareController::testAction'))
+            ->willReturn('Symfony\Bundle\FrameworkBundle\Tests\Controller\ContainerAwareController::testAction')
         ;
 
         $resolver = $this->createControllerResolver(null, null, $parser);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
index e72c558b7edc4..da950ce0c8041 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
@@ -43,9 +43,9 @@ public function testForward()
         $requestStack->push($request);
 
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
-        $kernel->expects($this->once())->method('handle')->will($this->returnCallback(function (Request $request) {
+        $kernel->expects($this->once())->method('handle')->willReturnCallback(function (Request $request) {
             return new Response($request->getRequestFormat().'--'.$request->getLocale());
-        }));
+        });
 
         $container = new Container();
         $container->set('request_stack', $requestStack);
@@ -110,7 +110,7 @@ private function getContainerWithTokenStorage($token = null)
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $container = new Container();
         $container->set('security.token_storage', $tokenStorage);
@@ -137,7 +137,7 @@ public function testJsonWithSerializer()
             ->expects($this->once())
             ->method('serialize')
             ->with([], 'json', ['json_encode_options' => JsonResponse::DEFAULT_ENCODING_OPTIONS])
-            ->will($this->returnValue('[]'));
+            ->willReturn('[]');
 
         $container->set('serializer', $serializer);
 
@@ -158,7 +158,7 @@ public function testJsonWithSerializerContextOverride()
             ->expects($this->once())
             ->method('serialize')
             ->with([], 'json', ['json_encode_options' => 0, 'other' => 'context'])
-            ->will($this->returnValue('[]'));
+            ->willReturn('[]');
 
         $container->set('serializer', $serializer);
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/RedirectControllerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/RedirectControllerTest.php
index 076912d6e2d68..4bd0212e6953d 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/RedirectControllerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/RedirectControllerTest.php
@@ -72,7 +72,7 @@ public function testRoute($permanent, $ignoreAttributes, $expectedCode, $expecte
             ->expects($this->once())
             ->method('generate')
             ->with($this->equalTo($route), $this->equalTo($expectedAttributes))
-            ->will($this->returnValue($url));
+            ->willReturn($url);
 
         $controller = new RedirectController($router);
 
@@ -250,23 +250,23 @@ private function createRequestObject($scheme, $host, $port, $baseUrl, $queryStri
         $request
             ->expects($this->any())
             ->method('getScheme')
-            ->will($this->returnValue($scheme));
+            ->willReturn($scheme);
         $request
             ->expects($this->any())
             ->method('getHost')
-            ->will($this->returnValue($host));
+            ->willReturn($host);
         $request
             ->expects($this->any())
             ->method('getPort')
-            ->will($this->returnValue($port));
+            ->willReturn($port);
         $request
             ->expects($this->any())
             ->method('getBaseUrl')
-            ->will($this->returnValue($baseUrl));
+            ->willReturn($baseUrl);
         $request
             ->expects($this->any())
             ->method('getQueryString')
-            ->will($this->returnValue($queryString));
+            ->willReturn($queryString);
 
         return $request;
     }
@@ -288,24 +288,24 @@ private function createLegacyRedirectController($httpPort = null, $httpsPort = n
                 ->expects($this->once())
                 ->method('hasParameter')
                 ->with($this->equalTo('request_listener.http_port'))
-                ->will($this->returnValue(true));
+                ->willReturn(true);
             $container
                 ->expects($this->once())
                 ->method('getParameter')
                 ->with($this->equalTo('request_listener.http_port'))
-                ->will($this->returnValue($httpPort));
+                ->willReturn($httpPort);
         }
         if (null !== $httpsPort) {
             $container
                 ->expects($this->once())
                 ->method('hasParameter')
                 ->with($this->equalTo('request_listener.https_port'))
-                ->will($this->returnValue(true));
+                ->willReturn(true);
             $container
                 ->expects($this->once())
                 ->method('getParameter')
                 ->with($this->equalTo('request_listener.https_port'))
-                ->will($this->returnValue($httpsPort));
+                ->willReturn($httpsPort);
         }
 
         $controller = new RedirectController();
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/TemplateControllerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/TemplateControllerTest.php
index 497c112eedb5f..9dba1c05a2bcb 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/TemplateControllerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/TemplateControllerTest.php
@@ -49,9 +49,9 @@ public function testLegacyTwig()
         $twig->expects($this->once())->method('render')->willReturn('bar');
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
-        $container->expects($this->at(0))->method('has')->will($this->returnValue(false));
-        $container->expects($this->at(1))->method('has')->will($this->returnValue(true));
-        $container->expects($this->at(2))->method('get')->will($this->returnValue($twig));
+        $container->expects($this->at(0))->method('has')->willReturn(false);
+        $container->expects($this->at(1))->method('has')->willReturn(true);
+        $container->expects($this->at(2))->method('get')->willReturn($twig);
 
         $controller = new TemplateController();
         $controller->setContainer($container);
@@ -69,7 +69,7 @@ public function testLegacyTemplating()
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
         $container->expects($this->at(0))->method('has')->willReturn(true);
-        $container->expects($this->at(1))->method('get')->will($this->returnValue($templating));
+        $container->expects($this->at(1))->method('get')->willReturn($templating);
 
         $controller = new TemplateController();
         $controller->setContainer($container);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Routing/RouterTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Routing/RouterTest.php
index 8309090809759..9fe45527cffe8 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Routing/RouterTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Routing/RouterTest.php
@@ -248,7 +248,7 @@ private function getServiceContainer(RouteCollection $routes)
         $loader
             ->expects($this->any())
             ->method('load')
-            ->will($this->returnValue($routes))
+            ->willReturn($routes)
         ;
 
         $sc = $this->getMockBuilder('Symfony\\Component\\DependencyInjection\\Container')->setMethods(['get'])->getMock();
@@ -256,7 +256,7 @@ private function getServiceContainer(RouteCollection $routes)
         $sc
             ->expects($this->once())
             ->method('get')
-            ->will($this->returnValue($loader))
+            ->willReturn($loader)
         ;
 
         return $sc;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/DelegatingEngineTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/DelegatingEngineTest.php
index 73983e47ce363..1fae0526d5d1b 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/DelegatingEngineTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/DelegatingEngineTest.php
@@ -67,7 +67,7 @@ public function testRenderResponseWithFrameworkEngine()
         $engine->expects($this->once())
             ->method('renderResponse')
             ->with('template.php', ['foo' => 'bar'])
-            ->will($this->returnValue($response));
+            ->willReturn($response);
         $container = $this->getContainerMock(['engine' => $engine]);
 
         $delegatingEngine = new DelegatingEngine($container, ['engine']);
@@ -91,7 +91,7 @@ private function getEngineMock($template, $supports)
         $engine->expects($this->once())
             ->method('supports')
             ->with($template)
-            ->will($this->returnValue($supports));
+            ->willReturn($supports);
 
         return $engine;
     }
@@ -103,7 +103,7 @@ private function getFrameworkEngineMock($template, $supports)
         $engine->expects($this->once())
             ->method('supports')
             ->with($template)
-            ->will($this->returnValue($supports));
+            ->willReturn($supports);
 
         return $engine;
     }
@@ -117,7 +117,7 @@ private function getContainerMock($services)
             $container->expects($this->at($i++))
                 ->method('get')
                 ->with($id)
-                ->will($this->returnValue($service));
+                ->willReturn($service);
         }
 
         return $container;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/GlobalVariablesTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/GlobalVariablesTest.php
index d6c6b299ebc62..46a581b9442e4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/GlobalVariablesTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/GlobalVariablesTest.php
@@ -47,7 +47,7 @@ public function testGetToken()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue('token'));
+            ->willReturn('token');
 
         $this->assertSame('token', $this->globals->getToken());
     }
@@ -77,12 +77,12 @@ public function testGetUser($user, $expectedUser)
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
 
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $this->assertSame($expectedUser, $this->globals->getUser());
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Loader/TemplateLocatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Loader/TemplateLocatorTest.php
index 3317b15d90914..c78b7e5b2910f 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Loader/TemplateLocatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Loader/TemplateLocatorTest.php
@@ -27,7 +27,7 @@ public function testLocateATemplate()
             ->expects($this->once())
             ->method('locate')
             ->with($template->getPath())
-            ->will($this->returnValue('/path/to/template'))
+            ->willReturn('/path/to/template')
         ;
 
         $locator = new TemplateLocator($fileLocator);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TemplateNameParserTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TemplateNameParserTest.php
index 85e4917548db0..4460d2ac2b525 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TemplateNameParserTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TemplateNameParserTest.php
@@ -26,13 +26,13 @@ protected function setUp()
         $kernel
             ->expects($this->any())
             ->method('getBundle')
-            ->will($this->returnCallback(function ($bundle) {
+            ->willReturnCallback(function ($bundle) {
                 if (\in_array($bundle, ['SensioFooBundle', 'SensioCmsFooBundle', 'FooBundle'])) {
                     return true;
                 }
 
                 throw new \InvalidArgumentException();
-            }))
+            })
         ;
         $this->parser = new TemplateNameParser($kernel);
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TimedPhpEngineTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TimedPhpEngineTest.php
index bd02809dc0173..f3684529f24c4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TimedPhpEngineTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TimedPhpEngineTest.php
@@ -31,7 +31,7 @@ public function testThatRenderLogsTime()
         $stopwatch->expects($this->once())
             ->method('start')
             ->with('template.php (index.php)', 'template')
-            ->will($this->returnValue($stopwatchEvent));
+            ->willReturn($stopwatchEvent);
 
         $stopwatchEvent->expects($this->once())->method('stop');
 
@@ -56,7 +56,7 @@ private function getTemplateNameParser()
         $templateNameParser = $this->getMockBuilder('Symfony\Component\Templating\TemplateNameParserInterface')->getMock();
         $templateNameParser->expects($this->any())
             ->method('parse')
-            ->will($this->returnValue($templateReference));
+            ->willReturn($templateReference);
 
         return $templateNameParser;
     }
@@ -91,7 +91,7 @@ private function getLoader($storage)
         $loader = $this->getMockForAbstractClass('Symfony\Component\Templating\Loader\Loader');
         $loader->expects($this->once())
             ->method('load')
-            ->will($this->returnValue($storage));
+            ->willReturn($storage);
 
         return $loader;
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
index aff109368b234..9dfd861dbeac0 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
@@ -147,7 +147,7 @@ public function testGetDefaultLocaleOmittingLocale()
             ->expects($this->once())
             ->method('getParameter')
             ->with('kernel.default_locale')
-            ->will($this->returnValue('en'))
+            ->willReturn('en')
         ;
         $translator = new Translator($container, new MessageFormatter());
 
@@ -357,53 +357,53 @@ protected function getLoader()
         $loader
             ->expects($this->at(0))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('fr', [
+            ->willReturn($this->getCatalogue('fr', [
                 'foo' => 'foo (FR)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(1))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('en', [
+            ->willReturn($this->getCatalogue('en', [
                 'foo' => 'foo (EN)',
                 'bar' => 'bar (EN)',
                 'choice' => '{0} choice 0 (EN)|{1} choice 1 (EN)|]1,Inf] choice inf (EN)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(2))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('es', [
+            ->willReturn($this->getCatalogue('es', [
                 'foobar' => 'foobar (ES)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(3))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('pt-PT', [
+            ->willReturn($this->getCatalogue('pt-PT', [
                 'foobarfoo' => 'foobarfoo (PT-PT)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(4))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('pt_BR', [
+            ->willReturn($this->getCatalogue('pt_BR', [
                 'other choice' => '{0} other choice 0 (PT-BR)|{1} other choice 1 (PT-BR)|]1,Inf] other choice inf (PT-BR)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(5))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('fr.UTF-8', [
+            ->willReturn($this->getCatalogue('fr.UTF-8', [
                 'foobarbaz' => 'foobarbaz (fr.UTF-8)',
-            ])))
+            ]))
         ;
         $loader
             ->expects($this->at(6))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('sr@latin', [
+            ->willReturn($this->getCatalogue('sr@latin', [
                 'foobarbax' => 'foobarbax (sr@latin)',
-            ])))
+            ]))
         ;
 
         return $loader;
@@ -415,7 +415,7 @@ protected function getContainer($loader)
         $container
             ->expects($this->any())
             ->method('get')
-            ->will($this->returnValue($loader))
+            ->willReturn($loader)
         ;
 
         return $container;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Validator/ConstraintValidatorFactoryTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Validator/ConstraintValidatorFactoryTest.php
index 864bd3c3bab75..8afe604c3a46d 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Validator/ConstraintValidatorFactoryTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Validator/ConstraintValidatorFactoryTest.php
@@ -68,7 +68,7 @@ public function testGetInstanceInvalidValidatorClass()
         $constraint
             ->expects($this->exactly(2))
             ->method('validatedBy')
-            ->will($this->returnValue('Fully\\Qualified\\ConstraintValidator\\Class\\Name'));
+            ->willReturn('Fully\\Qualified\\ConstraintValidator\\Class\\Name');
 
         $factory = new ConstraintValidatorFactory(new Container());
         $factory->getInstance($constraint);
diff --git a/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php b/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php
index ca82e805c3cd1..9eb9a08177700 100644
--- a/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php
+++ b/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php
@@ -132,17 +132,17 @@ protected function callFactory($id, $config, $userProviderId, $defaultEntryPoint
         $factory
             ->expects($this->once())
             ->method('createAuthProvider')
-            ->will($this->returnValue('auth_provider'))
+            ->willReturn('auth_provider')
         ;
         $factory
             ->expects($this->atLeastOnce())
             ->method('getListenerId')
-            ->will($this->returnValue('abstract_listener'))
+            ->willReturn('abstract_listener')
         ;
         $factory
             ->expects($this->any())
             ->method('getKey')
-            ->will($this->returnValue('abstract_factory'))
+            ->willReturn('abstract_factory')
         ;
 
         $container = new ContainerBuilder();
diff --git a/src/Symfony/Bundle/TwigBundle/Tests/Controller/PreviewErrorControllerTest.php b/src/Symfony/Bundle/TwigBundle/Tests/Controller/PreviewErrorControllerTest.php
index 1ca5015a49fcd..ae740e1ab2f20 100644
--- a/src/Symfony/Bundle/TwigBundle/Tests/Controller/PreviewErrorControllerTest.php
+++ b/src/Symfony/Bundle/TwigBundle/Tests/Controller/PreviewErrorControllerTest.php
@@ -44,7 +44,7 @@ public function testForwardRequestToConfiguredController()
                 }),
                 $this->equalTo(HttpKernelInterface::SUB_REQUEST)
             )
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $controller = new PreviewErrorController($kernel, $logicalControllerName);
 
diff --git a/src/Symfony/Bundle/TwigBundle/Tests/Loader/FilesystemLoaderTest.php b/src/Symfony/Bundle/TwigBundle/Tests/Loader/FilesystemLoaderTest.php
index a73921a8c7687..906a0bc10806c 100644
--- a/src/Symfony/Bundle/TwigBundle/Tests/Loader/FilesystemLoaderTest.php
+++ b/src/Symfony/Bundle/TwigBundle/Tests/Loader/FilesystemLoaderTest.php
@@ -24,7 +24,7 @@ public function testGetSourceContext()
         $locator
             ->expects($this->once())
             ->method('locate')
-            ->will($this->returnValue(__DIR__.'/../DependencyInjection/Fixtures/Resources/views/layout.html.twig'))
+            ->willReturn(__DIR__.'/../DependencyInjection/Fixtures/Resources/views/layout.html.twig')
         ;
         $loader = new FilesystemLoader($locator, $parser);
         $loader->addPath(__DIR__.'/../DependencyInjection/Fixtures/Resources/views', 'namespace');
@@ -44,7 +44,7 @@ public function testExists()
         $locator
             ->expects($this->once())
             ->method('locate')
-            ->will($this->returnValue($template = __DIR__.'/../DependencyInjection/Fixtures/Resources/views/layout.html.twig'))
+            ->willReturn($template = __DIR__.'/../DependencyInjection/Fixtures/Resources/views/layout.html.twig')
         ;
         $loader = new FilesystemLoader($locator, $parser);
 
@@ -61,7 +61,7 @@ public function testTwigErrorIfLocatorThrowsInvalid()
             ->expects($this->once())
             ->method('parse')
             ->with('name.format.engine')
-            ->will($this->returnValue(new TemplateReference('', '', 'name', 'format', 'engine')))
+            ->willReturn(new TemplateReference('', '', 'name', 'format', 'engine'))
         ;
 
         $locator = $this->getMockBuilder('Symfony\Component\Config\FileLocatorInterface')->getMock();
@@ -85,14 +85,14 @@ public function testTwigErrorIfLocatorReturnsFalse()
             ->expects($this->once())
             ->method('parse')
             ->with('name.format.engine')
-            ->will($this->returnValue(new TemplateReference('', '', 'name', 'format', 'engine')))
+            ->willReturn(new TemplateReference('', '', 'name', 'format', 'engine'))
         ;
 
         $locator = $this->getMockBuilder('Symfony\Component\Config\FileLocatorInterface')->getMock();
         $locator
             ->expects($this->once())
             ->method('locate')
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $loader = new FilesystemLoader($locator, $parser);
diff --git a/src/Symfony/Bundle/TwigBundle/Tests/TemplateIteratorTest.php b/src/Symfony/Bundle/TwigBundle/Tests/TemplateIteratorTest.php
index 33a873dba88d7..b9092af3ebd0c 100644
--- a/src/Symfony/Bundle/TwigBundle/Tests/TemplateIteratorTest.php
+++ b/src/Symfony/Bundle/TwigBundle/Tests/TemplateIteratorTest.php
@@ -18,13 +18,13 @@ class TemplateIteratorTest extends TestCase
     public function testGetIterator()
     {
         $bundle = $this->getMockBuilder('Symfony\Component\HttpKernel\Bundle\BundleInterface')->getMock();
-        $bundle->expects($this->any())->method('getName')->will($this->returnValue('BarBundle'));
-        $bundle->expects($this->any())->method('getPath')->will($this->returnValue(__DIR__.'/Fixtures/templates/BarBundle'));
+        $bundle->expects($this->any())->method('getName')->willReturn('BarBundle');
+        $bundle->expects($this->any())->method('getPath')->willReturn(__DIR__.'/Fixtures/templates/BarBundle');
 
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\Kernel')->disableOriginalConstructor()->getMock();
-        $kernel->expects($this->any())->method('getBundles')->will($this->returnValue([
+        $kernel->expects($this->any())->method('getBundles')->willReturn([
             $bundle,
-        ]));
+        ]);
         $iterator = new TemplateIterator($kernel, __DIR__.'/Fixtures/templates', [__DIR__.'/Fixtures/templates/Foo' => 'Foo'], __DIR__.'/DependencyInjection/Fixtures/templates');
 
         $sorted = iterator_to_array($iterator);
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Tests/Controller/ProfilerControllerTest.php b/src/Symfony/Bundle/WebProfilerBundle/Tests/Controller/ProfilerControllerTest.php
index a507d36cf08a6..a1e23041f8aac 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Tests/Controller/ProfilerControllerTest.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Tests/Controller/ProfilerControllerTest.php
@@ -97,11 +97,11 @@ public function testReturns404onTokenNotFound($withCsp)
         $profiler
             ->expects($this->exactly(2))
             ->method('loadProfile')
-            ->will($this->returnCallback(function ($token) {
+            ->willReturnCallback(function ($token) {
                 if ('found' == $token) {
                     return new Profile($token);
                 }
-            }))
+            })
         ;
 
         $controller = $this->createController($profiler, $twig, $withCsp);
@@ -149,7 +149,7 @@ public function testSearchResult($withCsp)
         $profiler
             ->expects($this->once())
             ->method('find')
-            ->will($this->returnValue($tokens));
+            ->willReturn($tokens);
 
         $request = Request::create('/_profiler/empty/search/results', 'GET', [
             'limit' => 2,
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Tests/Csp/ContentSecurityPolicyHandlerTest.php b/src/Symfony/Bundle/WebProfilerBundle/Tests/Csp/ContentSecurityPolicyHandlerTest.php
index bbf96c3b2b344..acccc7cbfb6d2 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Tests/Csp/ContentSecurityPolicyHandlerTest.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Tests/Csp/ContentSecurityPolicyHandlerTest.php
@@ -200,7 +200,7 @@ private function mockNonceGenerator($value)
 
         $generator->expects($this->any())
             ->method('generate')
-            ->will($this->returnValue($value));
+            ->willReturn($value);
 
         return $generator;
     }
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Tests/EventListener/WebDebugToolbarListenerTest.php b/src/Symfony/Bundle/WebProfilerBundle/Tests/EventListener/WebDebugToolbarListenerTest.php
index 1260886f8df13..f8255f3894de3 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Tests/EventListener/WebDebugToolbarListenerTest.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Tests/EventListener/WebDebugToolbarListenerTest.php
@@ -244,7 +244,7 @@ public function testXDebugUrlHeader()
             ->expects($this->once())
             ->method('generate')
             ->with('_profiler', ['token' => 'xxxxxxxx'], UrlGeneratorInterface::ABSOLUTE_URL)
-            ->will($this->returnValue('http://mydomain.com/_profiler/xxxxxxxx'))
+            ->willReturn('http://mydomain.com/_profiler/xxxxxxxx')
         ;
 
         $event = new FilterResponseEvent($this->getKernelMock(), $this->getRequestMock(), HttpKernelInterface::MASTER_REQUEST, $response);
@@ -302,10 +302,10 @@ protected function getRequestMock($isXmlHttpRequest = false, $requestFormat = 'h
         $request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->setMethods(['getSession', 'isXmlHttpRequest', 'getRequestFormat'])->disableOriginalConstructor()->getMock();
         $request->expects($this->any())
             ->method('isXmlHttpRequest')
-            ->will($this->returnValue($isXmlHttpRequest));
+            ->willReturn($isXmlHttpRequest);
         $request->expects($this->any())
             ->method('getRequestFormat')
-            ->will($this->returnValue($requestFormat));
+            ->willReturn($requestFormat);
 
         $request->headers = new HeaderBag();
 
@@ -313,7 +313,7 @@ protected function getRequestMock($isXmlHttpRequest = false, $requestFormat = 'h
             $session = $this->getMockBuilder('Symfony\Component\HttpFoundation\Session\Session')->disableOriginalConstructor()->getMock();
             $request->expects($this->any())
                 ->method('getSession')
-                ->will($this->returnValue($session));
+                ->willReturn($session);
         }
 
         return $request;
@@ -324,7 +324,7 @@ protected function getTwigMock($render = 'WDT')
         $templating = $this->getMockBuilder('Twig\Environment')->disableOriginalConstructor()->getMock();
         $templating->expects($this->any())
             ->method('render')
-            ->will($this->returnValue($render));
+            ->willReturn($render);
 
         return $templating;
     }
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Tests/Profiler/TemplateManagerTest.php b/src/Symfony/Bundle/WebProfilerBundle/Tests/Profiler/TemplateManagerTest.php
index 18d4cc44b4021..c6bc1cdba36ed 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Tests/Profiler/TemplateManagerTest.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Tests/Profiler/TemplateManagerTest.php
@@ -69,7 +69,7 @@ public function testGetNameValidTemplate()
         $this->profiler->expects($this->any())
             ->method('has')
             ->withAnyParameters()
-            ->will($this->returnCallback([$this, 'profilerHasCallback']));
+            ->willReturnCallback([$this, 'profilerHasCallback']);
 
         $this->assertEquals('FooBundle:Collector:foo.html.twig', $this->templateManager->getName(new ProfileDummy(), 'foo'));
     }
@@ -83,7 +83,7 @@ public function testGetTemplates()
         $this->profiler->expects($this->any())
             ->method('has')
             ->withAnyParameters()
-            ->will($this->returnCallback([$this, 'profileHasCollectorCallback']));
+            ->willReturnCallback([$this, 'profileHasCollectorCallback']);
 
         $result = $this->templateManager->getTemplates(new ProfileDummy());
         $this->assertArrayHasKey('foo', $result);
@@ -124,14 +124,14 @@ protected function mockTwigEnvironment()
 
         $this->twigEnvironment->expects($this->any())
             ->method('loadTemplate')
-            ->will($this->returnValue('loadedTemplate'));
+            ->willReturn('loadedTemplate');
 
         if (interface_exists('Twig\Loader\SourceContextLoaderInterface')) {
             $loader = $this->getMockBuilder('Twig\Loader\SourceContextLoaderInterface')->getMock();
         } else {
             $loader = $this->getMockBuilder('Twig\Loader\LoaderInterface')->getMock();
         }
-        $this->twigEnvironment->expects($this->any())->method('getLoader')->will($this->returnValue($loader));
+        $this->twigEnvironment->expects($this->any())->method('getLoader')->willReturn($loader);
 
         return $this->twigEnvironment;
     }
diff --git a/src/Symfony/Component/Asset/Tests/PathPackageTest.php b/src/Symfony/Component/Asset/Tests/PathPackageTest.php
index c6edc8de61a7d..d00cc76c2a943 100644
--- a/src/Symfony/Component/Asset/Tests/PathPackageTest.php
+++ b/src/Symfony/Component/Asset/Tests/PathPackageTest.php
@@ -89,7 +89,7 @@ public function testVersionStrategyGivesAbsoluteURL()
     private function getContext($basePath)
     {
         $context = $this->getMockBuilder('Symfony\Component\Asset\Context\ContextInterface')->getMock();
-        $context->expects($this->any())->method('getBasePath')->will($this->returnValue($basePath));
+        $context->expects($this->any())->method('getBasePath')->willReturn($basePath);
 
         return $context;
     }
diff --git a/src/Symfony/Component/Asset/Tests/UrlPackageTest.php b/src/Symfony/Component/Asset/Tests/UrlPackageTest.php
index 9b71d45bf31d7..a68c59a1249c1 100644
--- a/src/Symfony/Component/Asset/Tests/UrlPackageTest.php
+++ b/src/Symfony/Component/Asset/Tests/UrlPackageTest.php
@@ -107,7 +107,7 @@ public function testWrongBaseUrl()
     private function getContext($secure)
     {
         $context = $this->getMockBuilder('Symfony\Component\Asset\Context\ContextInterface')->getMock();
-        $context->expects($this->any())->method('isSecure')->will($this->returnValue($secure));
+        $context->expects($this->any())->method('isSecure')->willReturn($secure);
 
         return $context;
     }
diff --git a/src/Symfony/Component/Cache/Tests/Adapter/ChainAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/ChainAdapterTest.php
index 010f68b973e35..3b42697fe1385 100644
--- a/src/Symfony/Component/Cache/Tests/Adapter/ChainAdapterTest.php
+++ b/src/Symfony/Component/Cache/Tests/Adapter/ChainAdapterTest.php
@@ -80,7 +80,7 @@ private function getPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         return $pruneable;
     }
@@ -97,7 +97,7 @@ private function getFailingPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         return $pruneable;
     }
diff --git a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
index d0a1e5daf77be..488127cc950ad 100644
--- a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
+++ b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
@@ -173,7 +173,7 @@ private function getPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         return $pruneable;
     }
@@ -190,7 +190,7 @@ private function getFailingPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         return $pruneable;
     }
diff --git a/src/Symfony/Component/Cache/Tests/Simple/ChainCacheTest.php b/src/Symfony/Component/Cache/Tests/Simple/ChainCacheTest.php
index e6f7c7cc63229..aa77887919b74 100644
--- a/src/Symfony/Component/Cache/Tests/Simple/ChainCacheTest.php
+++ b/src/Symfony/Component/Cache/Tests/Simple/ChainCacheTest.php
@@ -78,7 +78,7 @@ private function getPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         return $pruneable;
     }
@@ -95,7 +95,7 @@ private function getFailingPruneableMock()
         $pruneable
             ->expects($this->atLeastOnce())
             ->method('prune')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         return $pruneable;
     }
diff --git a/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php b/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
index 6e2a6ba2229d7..6556962d1f15c 100644
--- a/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
+++ b/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
@@ -35,12 +35,12 @@ public function testGetSetResolver()
     public function testSupports()
     {
         $loader1 = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
-        $loader1->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $loader1->expects($this->once())->method('supports')->willReturn(true);
         $loader = new DelegatingLoader(new LoaderResolver([$loader1]));
         $this->assertTrue($loader->supports('foo.xml'), '->supports() returns true if the resource is loadable');
 
         $loader1 = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
-        $loader1->expects($this->once())->method('supports')->will($this->returnValue(false));
+        $loader1->expects($this->once())->method('supports')->willReturn(false);
         $loader = new DelegatingLoader(new LoaderResolver([$loader1]));
         $this->assertFalse($loader->supports('foo.foo'), '->supports() returns false if the resource is not loadable');
     }
@@ -48,7 +48,7 @@ public function testSupports()
     public function testLoad()
     {
         $loader = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
-        $loader->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $loader->expects($this->once())->method('supports')->willReturn(true);
         $loader->expects($this->once())->method('load');
         $resolver = new LoaderResolver([$loader]);
         $loader = new DelegatingLoader($resolver);
@@ -62,7 +62,7 @@ public function testLoad()
     public function testLoadThrowsAnExceptionIfTheResourceCannotBeLoaded()
     {
         $loader = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
-        $loader->expects($this->once())->method('supports')->will($this->returnValue(false));
+        $loader->expects($this->once())->method('supports')->willReturn(false);
         $resolver = new LoaderResolver([$loader]);
         $loader = new DelegatingLoader($resolver);
 
diff --git a/src/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php b/src/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php
index 487dc43adc310..aabc2a600d8dd 100644
--- a/src/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php
+++ b/src/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php
@@ -32,7 +32,7 @@ public function testResolve()
         $this->assertFalse($resolver->resolve('foo.foo'), '->resolve() returns false if no loader is able to load the resource');
 
         $loader = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
-        $loader->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $loader->expects($this->once())->method('supports')->willReturn(true);
         $resolver = new LoaderResolver([$loader]);
         $this->assertEquals($loader, $resolver->resolve(function () {}), '->resolve() returns the loader for the given resource');
     }
diff --git a/src/Symfony/Component/Config/Tests/Loader/LoaderTest.php b/src/Symfony/Component/Config/Tests/Loader/LoaderTest.php
index 30167e3836f85..0c6e3fc025d19 100644
--- a/src/Symfony/Component/Config/Tests/Loader/LoaderTest.php
+++ b/src/Symfony/Component/Config/Tests/Loader/LoaderTest.php
@@ -34,7 +34,7 @@ public function testResolve()
         $resolver->expects($this->once())
             ->method('resolve')
             ->with('foo.xml')
-            ->will($this->returnValue($resolvedLoader));
+            ->willReturn($resolvedLoader);
 
         $loader = new ProjectLoader1();
         $loader->setResolver($resolver);
@@ -52,7 +52,7 @@ public function testResolveWhenResolverCannotFindLoader()
         $resolver->expects($this->once())
             ->method('resolve')
             ->with('FOOBAR')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $loader = new ProjectLoader1();
         $loader->setResolver($resolver);
@@ -66,13 +66,13 @@ public function testImport()
         $resolvedLoader->expects($this->once())
             ->method('load')
             ->with('foo')
-            ->will($this->returnValue('yes'));
+            ->willReturn('yes');
 
         $resolver = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderResolverInterface')->getMock();
         $resolver->expects($this->once())
             ->method('resolve')
             ->with('foo')
-            ->will($this->returnValue($resolvedLoader));
+            ->willReturn($resolvedLoader);
 
         $loader = new ProjectLoader1();
         $loader->setResolver($resolver);
@@ -86,13 +86,13 @@ public function testImportWithType()
         $resolvedLoader->expects($this->once())
             ->method('load')
             ->with('foo', 'bar')
-            ->will($this->returnValue('yes'));
+            ->willReturn('yes');
 
         $resolver = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderResolverInterface')->getMock();
         $resolver->expects($this->once())
             ->method('resolve')
             ->with('foo', 'bar')
-            ->will($this->returnValue($resolvedLoader));
+            ->willReturn($resolvedLoader);
 
         $loader = new ProjectLoader1();
         $loader->setResolver($resolver);
diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index b920d211aaa8f..181e82593db76 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -660,7 +660,7 @@ public function testFindNamespaceDoesNotFailOnDeepSimilarNamespaces()
         $application = $this->getMockBuilder('Symfony\Component\Console\Application')->setMethods(['getNamespaces'])->getMock();
         $application->expects($this->once())
             ->method('getNamespaces')
-            ->will($this->returnValue(['foo:sublong', 'bar:sub']));
+            ->willReturn(['foo:sublong', 'bar:sub']);
 
         $this->assertEquals('foo:sublong', $application->findNamespace('f:sub'));
     }
@@ -804,7 +804,7 @@ public function testRenderExceptionLineBreaks()
         $application->setAutoExit(false);
         $application->expects($this->any())
             ->method('getTerminalWidth')
-            ->will($this->returnValue(120));
+            ->willReturn(120);
         $application->register('foo')->setCode(function () {
             throw new \InvalidArgumentException("\n\nline 1 with extra spaces        \nline 2\n\nline 4\n");
         });
diff --git a/src/Symfony/Component/Console/Tests/Command/CommandTest.php b/src/Symfony/Component/Console/Tests/Command/CommandTest.php
index b3ce402209a8e..9a135d325590a 100644
--- a/src/Symfony/Component/Console/Tests/Command/CommandTest.php
+++ b/src/Symfony/Component/Console/Tests/Command/CommandTest.php
@@ -321,7 +321,7 @@ public function testRunReturnsIntegerExitCode()
         $command = $this->getMockBuilder('TestCommand')->setMethods(['execute'])->getMock();
         $command->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue('2.3'));
+            ->willReturn('2.3');
         $exitCode = $command->run(new StringInput(''), new NullOutput());
         $this->assertSame(2, $exitCode, '->run() returns integer exit code (casts numeric to int)');
     }
diff --git a/src/Symfony/Component/Console/Tests/Helper/AbstractQuestionHelperTest.php b/src/Symfony/Component/Console/Tests/Helper/AbstractQuestionHelperTest.php
index 56dd65f6b456f..f12566dedd655 100644
--- a/src/Symfony/Component/Console/Tests/Helper/AbstractQuestionHelperTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/AbstractQuestionHelperTest.php
@@ -21,7 +21,7 @@ protected function createStreamableInputInterfaceMock($stream = null, $interacti
         $mock = $this->getMockBuilder(StreamableInputInterface::class)->getMock();
         $mock->expects($this->any())
             ->method('isInteractive')
-            ->will($this->returnValue($interactive));
+            ->willReturn($interactive);
 
         if ($stream) {
             $mock->expects($this->any())
diff --git a/src/Symfony/Component/Console/Tests/Helper/HelperSetTest.php b/src/Symfony/Component/Console/Tests/Helper/HelperSetTest.php
index 826bc51dcd62b..ffb12b3421f9a 100644
--- a/src/Symfony/Component/Console/Tests/Helper/HelperSetTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/HelperSetTest.php
@@ -114,7 +114,7 @@ private function getGenericMockHelper($name, HelperSet $helperset = null)
         $mock_helper = $this->getMockBuilder('\Symfony\Component\Console\Helper\HelperInterface')->getMock();
         $mock_helper->expects($this->any())
             ->method('getName')
-            ->will($this->returnValue($name));
+            ->willReturn($name);
 
         if ($helperset) {
             $mock_helper->expects($this->any())
diff --git a/src/Symfony/Component/Console/Tests/Helper/QuestionHelperTest.php b/src/Symfony/Component/Console/Tests/Helper/QuestionHelperTest.php
index 3c030e04983d9..53819e4be70ed 100644
--- a/src/Symfony/Component/Console/Tests/Helper/QuestionHelperTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/QuestionHelperTest.php
@@ -1068,7 +1068,7 @@ protected function createInputInterfaceMock($interactive = true)
         $mock = $this->getMockBuilder('Symfony\Component\Console\Input\InputInterface')->getMock();
         $mock->expects($this->any())
             ->method('isInteractive')
-            ->will($this->returnValue($interactive));
+            ->willReturn($interactive);
 
         return $mock;
     }
diff --git a/src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php b/src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
index cf7a78c34ecda..6f621db95448a 100644
--- a/src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/SymfonyQuestionHelperTest.php
@@ -154,7 +154,7 @@ protected function createInputInterfaceMock($interactive = true)
         $mock = $this->getMockBuilder('Symfony\Component\Console\Input\InputInterface')->getMock();
         $mock->expects($this->any())
             ->method('isInteractive')
-            ->will($this->returnValue($interactive));
+            ->willReturn($interactive);
 
         return $mock;
     }
diff --git a/src/Symfony/Component/Console/Tests/Logger/ConsoleLoggerTest.php b/src/Symfony/Component/Console/Tests/Logger/ConsoleLoggerTest.php
index efeec4234e952..c99eb839b7f31 100644
--- a/src/Symfony/Component/Console/Tests/Logger/ConsoleLoggerTest.php
+++ b/src/Symfony/Component/Console/Tests/Logger/ConsoleLoggerTest.php
@@ -166,7 +166,7 @@ public function testObjectCastToString()
         } else {
             $dummy = $this->getMock('Symfony\Component\Console\Tests\Logger\DummyTest', ['__toString']);
         }
-        $dummy->method('__toString')->will($this->returnValue('DUMMY'));
+        $dummy->method('__toString')->willReturn('DUMMY');
 
         $this->getLogger()->warning($dummy);
 
diff --git a/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php b/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
index 15de37c7b7808..bb82c63328b19 100644
--- a/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
+++ b/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
@@ -234,7 +234,7 @@ public function testHandleError()
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->will($this->returnCallback($warnArgCheck))
+                ->willReturnCallback($warnArgCheck)
             ;
 
             $handler = ErrorHandler::register();
@@ -262,7 +262,7 @@ public function testHandleError()
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->will($this->returnCallback($logArgCheck))
+                ->willReturnCallback($logArgCheck)
             ;
 
             $handler = ErrorHandler::register();
@@ -318,7 +318,7 @@ public function testHandleDeprecation()
         $logger
             ->expects($this->once())
             ->method('log')
-            ->will($this->returnCallback($logArgCheck))
+            ->willReturnCallback($logArgCheck)
         ;
 
         $handler = new ErrorHandler();
@@ -349,7 +349,7 @@ public function testHandleException()
             $logger
                 ->expects($this->exactly(2))
                 ->method('log')
-                ->will($this->returnCallback($logArgCheck))
+                ->willReturnCallback($logArgCheck)
             ;
 
             $handler->setDefaultLogger($logger, E_ERROR);
@@ -503,7 +503,7 @@ public function testHandleFatalError()
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->will($this->returnCallback($logArgCheck))
+                ->willReturnCallback($logArgCheck)
             ;
 
             $handler->setDefaultLogger($logger, E_PARSE);
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowireExceptionPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowireExceptionPassTest.php
index 5bcb1234223a9..c5ba149aebea2 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowireExceptionPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowireExceptionPassTest.php
@@ -31,13 +31,13 @@ public function testThrowsException()
         $autowireException = new AutowiringFailedException('foo_service_id', 'An autowiring exception message');
         $autowirePass->expects($this->any())
             ->method('getAutowiringExceptions')
-            ->will($this->returnValue([$autowireException]));
+            ->willReturn([$autowireException]);
 
         $inlinePass = $this->getMockBuilder(InlineServiceDefinitionsPass::class)
             ->getMock();
         $inlinePass->expects($this->any())
             ->method('getInlinedServiceIds')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $container = new ContainerBuilder();
         $container->register('foo_service_id');
@@ -60,18 +60,18 @@ public function testThrowExceptionIfServiceInlined()
         $autowireException = new AutowiringFailedException('a_service', 'An autowiring exception message');
         $autowirePass->expects($this->any())
             ->method('getAutowiringExceptions')
-            ->will($this->returnValue([$autowireException]));
+            ->willReturn([$autowireException]);
 
         $inlinePass = $this->getMockBuilder(InlineServiceDefinitionsPass::class)
             ->getMock();
         $inlinePass->expects($this->any())
             ->method('getInlinedServiceIds')
-            ->will($this->returnValue([
+            ->willReturn([
                 // a_service inlined into b_service
                 'a_service' => ['b_service'],
                 // b_service inlined into c_service
                 'b_service' => ['c_service'],
-            ]));
+            ]);
 
         $container = new ContainerBuilder();
         // ONLY register c_service in the final container
@@ -95,18 +95,18 @@ public function testDoNotThrowExceptionIfServiceInlinedButRemoved()
         $autowireException = new AutowiringFailedException('a_service', 'An autowiring exception message');
         $autowirePass->expects($this->any())
             ->method('getAutowiringExceptions')
-            ->will($this->returnValue([$autowireException]));
+            ->willReturn([$autowireException]);
 
         $inlinePass = $this->getMockBuilder(InlineServiceDefinitionsPass::class)
             ->getMock();
         $inlinePass->expects($this->any())
             ->method('getInlinedServiceIds')
-            ->will($this->returnValue([
+            ->willReturn([
                 // a_service inlined into b_service
                 'a_service' => ['b_service'],
                 // b_service inlined into c_service
                 'b_service' => ['c_service'],
-            ]));
+            ]);
 
         // do NOT register c_service in the container
         $container = new ContainerBuilder();
@@ -126,13 +126,13 @@ public function testNoExceptionIfServiceRemoved()
         $autowireException = new AutowiringFailedException('non_existent_service');
         $autowirePass->expects($this->any())
             ->method('getAutowiringExceptions')
-            ->will($this->returnValue([$autowireException]));
+            ->willReturn([$autowireException]);
 
         $inlinePass = $this->getMockBuilder(InlineServiceDefinitionsPass::class)
             ->getMock();
         $inlinePass->expects($this->any())
             ->method('getInlinedServiceIds')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $container = new ContainerBuilder();
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/MergeExtensionConfigurationPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/MergeExtensionConfigurationPassTest.php
index 667ae388648ae..1bef795f2b523 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/MergeExtensionConfigurationPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/MergeExtensionConfigurationPassTest.php
@@ -30,18 +30,18 @@ public function testExpressionLanguageProviderForwarding()
         $extension = $this->getMockBuilder('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface')->getMock();
         $extension->expects($this->any())
             ->method('getXsdValidationBasePath')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
         $extension->expects($this->any())
             ->method('getNamespace')
-            ->will($this->returnValue('http://example.org/schema/dic/foo'));
+            ->willReturn('http://example.org/schema/dic/foo');
         $extension->expects($this->any())
             ->method('getAlias')
-            ->will($this->returnValue('foo'));
+            ->willReturn('foo');
         $extension->expects($this->once())
             ->method('load')
-            ->will($this->returnCallback(function (array $config, ContainerBuilder $container) use (&$tmpProviders) {
+            ->willReturnCallback(function (array $config, ContainerBuilder $container) use (&$tmpProviders) {
                 $tmpProviders = $container->getExpressionLanguageProviders();
-            }));
+            });
 
         $provider = $this->getMockBuilder('Symfony\\Component\\ExpressionLanguage\\ExpressionFunctionProviderInterface')->getMock();
         $container = new ContainerBuilder(new ParameterBag());
@@ -76,7 +76,7 @@ public function testExtensionConfigurationIsTrackedByDefault()
         $extension = $this->getMockBuilder(FooExtension::class)->setMethods(['getConfiguration'])->getMock();
         $extension->expects($this->exactly(2))
             ->method('getConfiguration')
-            ->will($this->returnValue(new FooConfiguration()));
+            ->willReturn(new FooConfiguration());
 
         $container = new ContainerBuilder(new ParameterBag());
         $container->registerExtension($extension);
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Config/ContainerParametersResourceCheckerTest.php b/src/Symfony/Component/DependencyInjection/Tests/Config/ContainerParametersResourceCheckerTest.php
index fc2d85ecf9560..eb5fc5a99d2e1 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Config/ContainerParametersResourceCheckerTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Config/ContainerParametersResourceCheckerTest.php
@@ -67,10 +67,10 @@ public function isFreshProvider()
                     [$this->equalTo('locales')],
                     [$this->equalTo('default_locale')]
                 )
-                ->will($this->returnValueMap([
+                ->willReturnMap([
                     ['locales', ['fr', 'en']],
                     ['default_locale', 'fr'],
-                ]))
+                ])
             ;
         }, true];
     }
diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
index 73cb670cdb121..b3bea30b749b9 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
@@ -1059,7 +1059,7 @@ public function testExtension()
     public function testRegisteredButNotLoadedExtension()
     {
         $extension = $this->getMockBuilder('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface')->getMock();
-        $extension->expects($this->once())->method('getAlias')->will($this->returnValue('project'));
+        $extension->expects($this->once())->method('getAlias')->willReturn('project');
         $extension->expects($this->never())->method('load');
 
         $container = new ContainerBuilder();
@@ -1071,7 +1071,7 @@ public function testRegisteredButNotLoadedExtension()
     public function testRegisteredAndLoadedExtension()
     {
         $extension = $this->getMockBuilder('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface')->getMock();
-        $extension->expects($this->exactly(2))->method('getAlias')->will($this->returnValue('project'));
+        $extension->expects($this->exactly(2))->method('getAlias')->willReturn('project');
         $extension->expects($this->once())->method('load')->with([['foo' => 'bar']]);
 
         $container = new ContainerBuilder();
diff --git a/src/Symfony/Component/DomCrawler/Tests/FormTest.php b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
index 2778fd075e3a5..2c0ee22c1fc45 100644
--- a/src/Symfony/Component/DomCrawler/Tests/FormTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
@@ -862,13 +862,13 @@ protected function getFormFieldMock($name, $value = null)
         $field
             ->expects($this->any())
             ->method('getName')
-            ->will($this->returnValue($name))
+            ->willReturn($name)
         ;
 
         $field
             ->expects($this->any())
             ->method('getValue')
-            ->will($this->returnValue($value))
+            ->willReturn($value)
         ;
 
         return $field;
diff --git a/src/Symfony/Component/EventDispatcher/Tests/ImmutableEventDispatcherTest.php b/src/Symfony/Component/EventDispatcher/Tests/ImmutableEventDispatcherTest.php
index 04f2861e33193..c52fefe509ae9 100644
--- a/src/Symfony/Component/EventDispatcher/Tests/ImmutableEventDispatcherTest.php
+++ b/src/Symfony/Component/EventDispatcher/Tests/ImmutableEventDispatcherTest.php
@@ -43,7 +43,7 @@ public function testDispatchDelegates()
         $this->innerDispatcher->expects($this->once())
             ->method('dispatch')
             ->with('event', $event)
-            ->will($this->returnValue('result'));
+            ->willReturn('result');
 
         $this->assertSame('result', $this->dispatcher->dispatch('event', $event));
     }
@@ -53,7 +53,7 @@ public function testGetListenersDelegates()
         $this->innerDispatcher->expects($this->once())
             ->method('getListeners')
             ->with('event')
-            ->will($this->returnValue('result'));
+            ->willReturn('result');
 
         $this->assertSame('result', $this->dispatcher->getListeners('event'));
     }
@@ -63,7 +63,7 @@ public function testHasListenersDelegates()
         $this->innerDispatcher->expects($this->once())
             ->method('hasListeners')
             ->with('event')
-            ->will($this->returnValue('result'));
+            ->willReturn('result');
 
         $this->assertSame('result', $this->dispatcher->hasListeners('event'));
     }
diff --git a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
index d2a660286da14..83b608b2b9956 100644
--- a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
+++ b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
@@ -36,18 +36,18 @@ public function testCachedParse()
         $cacheItemMock
             ->expects($this->exactly(2))
             ->method('get')
-            ->will($this->returnCallback(function () use (&$savedParsedExpression) {
+            ->willReturnCallback(function () use (&$savedParsedExpression) {
                 return $savedParsedExpression;
-            }))
+            })
         ;
 
         $cacheItemMock
             ->expects($this->exactly(1))
             ->method('set')
             ->with($this->isInstanceOf(ParsedExpression::class))
-            ->will($this->returnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
+            ->willReturnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
                 $savedParsedExpression = $parsedExpression;
-            }))
+            })
         ;
 
         $cacheMock
@@ -85,9 +85,9 @@ public function testCachedParseWithDeprecatedParserCacheInterface()
             ->expects($this->exactly(1))
             ->method('save')
             ->with('1%20%2B%201%2F%2F', $this->isInstanceOf(ParsedExpression::class))
-            ->will($this->returnCallback(function ($key, $expression) use (&$savedParsedExpression) {
+            ->willReturnCallback(function ($key, $expression) use (&$savedParsedExpression) {
                 $savedParsedExpression = $expression;
-            }))
+            })
         ;
 
         $parsedExpression = $expressionLanguage->parse('1 + 1', []);
@@ -213,18 +213,18 @@ public function testCachingWithDifferentNamesOrder()
         $cacheItemMock
             ->expects($this->exactly(2))
             ->method('get')
-            ->will($this->returnCallback(function () use (&$savedParsedExpression) {
+            ->willReturnCallback(function () use (&$savedParsedExpression) {
                 return $savedParsedExpression;
-            }))
+            })
         ;
 
         $cacheItemMock
             ->expects($this->exactly(1))
             ->method('set')
             ->with($this->isInstanceOf(ParsedExpression::class))
-            ->will($this->returnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
+            ->willReturnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
                 $savedParsedExpression = $parsedExpression;
-            }))
+            })
         ;
 
         $cacheMock
diff --git a/src/Symfony/Component/Finder/Tests/Iterator/FilterIteratorTest.php b/src/Symfony/Component/Finder/Tests/Iterator/FilterIteratorTest.php
index b26f7ba6bdd28..181b1464fcd9a 100644
--- a/src/Symfony/Component/Finder/Tests/Iterator/FilterIteratorTest.php
+++ b/src/Symfony/Component/Finder/Tests/Iterator/FilterIteratorTest.php
@@ -26,9 +26,9 @@ public function testFilterFilesystemIterators()
         $i = $this->getMockForAbstractClass('Symfony\Component\Finder\Iterator\FilterIterator', [$i]);
         $i->expects($this->any())
             ->method('accept')
-            ->will($this->returnCallback(function () use ($i) {
+            ->willReturnCallback(function () use ($i) {
                 return (bool) preg_match('/\.php/', (string) $i->current());
-            })
+            }
         );
 
         $c = 0;
diff --git a/src/Symfony/Component/Form/Tests/AbstractDivLayoutTest.php b/src/Symfony/Component/Form/Tests/AbstractDivLayoutTest.php
index ab8444974959d..fe0d3e6629b26 100644
--- a/src/Symfony/Component/Form/Tests/AbstractDivLayoutTest.php
+++ b/src/Symfony/Component/Form/Tests/AbstractDivLayoutTest.php
@@ -473,7 +473,7 @@ public function testCsrf()
     {
         $this->csrfTokenManager->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(new CsrfToken('token_id', 'foo&bar')));
+            ->willReturn(new CsrfToken('token_id', 'foo&bar'));
 
         $form = $this->factory->createNamedBuilder('name', 'Symfony\Component\Form\Extension\Core\Type\FormType')
             ->add($this->factory
diff --git a/src/Symfony/Component/Form/Tests/AbstractRequestHandlerTest.php b/src/Symfony/Component/Form/Tests/AbstractRequestHandlerTest.php
index b470769344bb2..f2ee71b3424cd 100644
--- a/src/Symfony/Component/Form/Tests/AbstractRequestHandlerTest.php
+++ b/src/Symfony/Component/Form/Tests/AbstractRequestHandlerTest.php
@@ -312,10 +312,10 @@ public function testAddFormErrorIfPostMaxSizeExceeded($contentLength, $iniMax, $
     {
         $this->serverParams->expects($this->once())
             ->method('getContentLength')
-            ->will($this->returnValue($contentLength));
+            ->willReturn($contentLength);
         $this->serverParams->expects($this->any())
             ->method('getNormalizedIniPostMaxSize')
-            ->will($this->returnValue($iniMax));
+            ->willReturn($iniMax);
 
         $options = ['post_max_size_message' => 'Max {{ max }}!'];
         $form = $this->factory->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, $options);
diff --git a/src/Symfony/Component/Form/Tests/AbstractTableLayoutTest.php b/src/Symfony/Component/Form/Tests/AbstractTableLayoutTest.php
index 6c09ba8ead456..7cc68bd83d268 100644
--- a/src/Symfony/Component/Form/Tests/AbstractTableLayoutTest.php
+++ b/src/Symfony/Component/Form/Tests/AbstractTableLayoutTest.php
@@ -339,7 +339,7 @@ public function testCsrf()
     {
         $this->csrfTokenManager->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(new CsrfToken('token_id', 'foo&bar')));
+            ->willReturn(new CsrfToken('token_id', 'foo&bar'));
 
         $form = $this->factory->createNamedBuilder('name', 'Symfony\Component\Form\Extension\Core\Type\FormType')
             ->add($this->factory
diff --git a/src/Symfony/Component/Form/Tests/ChoiceList/Factory/CachingFactoryDecoratorTest.php b/src/Symfony/Component/Form/Tests/ChoiceList/Factory/CachingFactoryDecoratorTest.php
index ca5b67c817f2e..7277d49780d65 100644
--- a/src/Symfony/Component/Form/Tests/ChoiceList/Factory/CachingFactoryDecoratorTest.php
+++ b/src/Symfony/Component/Form/Tests/ChoiceList/Factory/CachingFactoryDecoratorTest.php
@@ -42,7 +42,7 @@ public function testCreateFromChoicesEmpty()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with([])
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromChoices([]));
         $this->assertSame($list, $this->factory->createListFromChoices([]));
@@ -58,7 +58,7 @@ public function testCreateFromChoicesComparesTraversableChoicesAsArray()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices2)
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromChoices($choices1));
         $this->assertSame($list, $this->factory->createListFromChoices($choices2));
@@ -74,11 +74,11 @@ public function testCreateFromChoicesGroupedChoices()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createListFromChoices')
             ->with($choices1)
-            ->will($this->returnValue($list1));
+            ->willReturn($list1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createListFromChoices')
             ->with($choices2)
-            ->will($this->returnValue($list2));
+            ->willReturn($list2);
 
         $this->assertSame($list1, $this->factory->createListFromChoices($choices1));
         $this->assertSame($list2, $this->factory->createListFromChoices($choices2));
@@ -96,7 +96,7 @@ public function testCreateFromChoicesSameChoices($choice1, $choice2)
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices1)
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromChoices($choices1));
         $this->assertSame($list, $this->factory->createListFromChoices($choices2));
@@ -115,11 +115,11 @@ public function testCreateFromChoicesDifferentChoices($choice1, $choice2)
         $this->decoratedFactory->expects($this->at(0))
             ->method('createListFromChoices')
             ->with($choices1)
-            ->will($this->returnValue($list1));
+            ->willReturn($list1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createListFromChoices')
             ->with($choices2)
-            ->will($this->returnValue($list2));
+            ->willReturn($list2);
 
         $this->assertSame($list1, $this->factory->createListFromChoices($choices1));
         $this->assertSame($list2, $this->factory->createListFromChoices($choices2));
@@ -134,7 +134,7 @@ public function testCreateFromChoicesSameValueClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices, $closure)
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromChoices($choices, $closure));
         $this->assertSame($list, $this->factory->createListFromChoices($choices, $closure));
@@ -151,11 +151,11 @@ public function testCreateFromChoicesDifferentValueClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createListFromChoices')
             ->with($choices, $closure1)
-            ->will($this->returnValue($list1));
+            ->willReturn($list1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createListFromChoices')
             ->with($choices, $closure2)
-            ->will($this->returnValue($list2));
+            ->willReturn($list2);
 
         $this->assertSame($list1, $this->factory->createListFromChoices($choices, $closure1));
         $this->assertSame($list2, $this->factory->createListFromChoices($choices, $closure2));
@@ -169,7 +169,7 @@ public function testCreateFromLoaderSameLoader()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromLoader')
             ->with($loader)
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromLoader($loader));
         $this->assertSame($list, $this->factory->createListFromLoader($loader));
@@ -185,11 +185,11 @@ public function testCreateFromLoaderDifferentLoader()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createListFromLoader')
             ->with($loader1)
-            ->will($this->returnValue($list1));
+            ->willReturn($list1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createListFromLoader')
             ->with($loader2)
-            ->will($this->returnValue($list2));
+            ->willReturn($list2);
 
         $this->assertSame($list1, $this->factory->createListFromLoader($loader1));
         $this->assertSame($list2, $this->factory->createListFromLoader($loader2));
@@ -204,7 +204,7 @@ public function testCreateFromLoaderSameValueClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromLoader')
             ->with($loader, $closure)
-            ->will($this->returnValue($list));
+            ->willReturn($list);
 
         $this->assertSame($list, $this->factory->createListFromLoader($loader, $closure));
         $this->assertSame($list, $this->factory->createListFromLoader($loader, $closure));
@@ -221,11 +221,11 @@ public function testCreateFromLoaderDifferentValueClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createListFromLoader')
             ->with($loader, $closure1)
-            ->will($this->returnValue($list1));
+            ->willReturn($list1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createListFromLoader')
             ->with($loader, $closure2)
-            ->will($this->returnValue($list2));
+            ->willReturn($list2);
 
         $this->assertSame($list1, $this->factory->createListFromLoader($loader, $closure1));
         $this->assertSame($list2, $this->factory->createListFromLoader($loader, $closure2));
@@ -240,7 +240,7 @@ public function testCreateViewSamePreferredChoices()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, $preferred)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, $preferred));
         $this->assertSame($view, $this->factory->createView($list, $preferred));
@@ -257,11 +257,11 @@ public function testCreateViewDifferentPreferredChoices()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, $preferred1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, $preferred2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, $preferred1));
         $this->assertSame($view2, $this->factory->createView($list, $preferred2));
@@ -276,7 +276,7 @@ public function testCreateViewSamePreferredChoicesClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, $preferred)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, $preferred));
         $this->assertSame($view, $this->factory->createView($list, $preferred));
@@ -293,11 +293,11 @@ public function testCreateViewDifferentPreferredChoicesClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, $preferred1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, $preferred2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, $preferred1));
         $this->assertSame($view2, $this->factory->createView($list, $preferred2));
@@ -312,7 +312,7 @@ public function testCreateViewSameLabelClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, $labels)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, null, $labels));
         $this->assertSame($view, $this->factory->createView($list, null, $labels));
@@ -329,11 +329,11 @@ public function testCreateViewDifferentLabelClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, null, $labels1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, null, $labels2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, null, $labels1));
         $this->assertSame($view2, $this->factory->createView($list, null, $labels2));
@@ -348,7 +348,7 @@ public function testCreateViewSameIndexClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, $index)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, null, null, $index));
         $this->assertSame($view, $this->factory->createView($list, null, null, $index));
@@ -365,11 +365,11 @@ public function testCreateViewDifferentIndexClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, null, null, $index1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, null, null, $index2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, null, null, $index1));
         $this->assertSame($view2, $this->factory->createView($list, null, null, $index2));
@@ -384,7 +384,7 @@ public function testCreateViewSameGroupByClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, $groupBy)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, null, null, null, $groupBy));
         $this->assertSame($view, $this->factory->createView($list, null, null, null, $groupBy));
@@ -401,11 +401,11 @@ public function testCreateViewDifferentGroupByClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, null, null, null, $groupBy1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, null, null, null, $groupBy2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, null, null, null, $groupBy1));
         $this->assertSame($view2, $this->factory->createView($list, null, null, null, $groupBy2));
@@ -420,7 +420,7 @@ public function testCreateViewSameAttributes()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, null, $attr)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, null, null, null, null, $attr));
         $this->assertSame($view, $this->factory->createView($list, null, null, null, null, $attr));
@@ -437,11 +437,11 @@ public function testCreateViewDifferentAttributes()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, null, null, null, null, $attr1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, null, null, null, null, $attr2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, null, null, null, null, $attr1));
         $this->assertSame($view2, $this->factory->createView($list, null, null, null, null, $attr2));
@@ -456,7 +456,7 @@ public function testCreateViewSameAttributesClosure()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, null, $attr)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $this->factory->createView($list, null, null, null, null, $attr));
         $this->assertSame($view, $this->factory->createView($list, null, null, null, null, $attr));
@@ -473,11 +473,11 @@ public function testCreateViewDifferentAttributesClosure()
         $this->decoratedFactory->expects($this->at(0))
             ->method('createView')
             ->with($list, null, null, null, null, $attr1)
-            ->will($this->returnValue($view1));
+            ->willReturn($view1);
         $this->decoratedFactory->expects($this->at(1))
             ->method('createView')
             ->with($list, null, null, null, null, $attr2)
-            ->will($this->returnValue($view2));
+            ->willReturn($view2);
 
         $this->assertSame($view1, $this->factory->createView($list, null, null, null, null, $attr1));
         $this->assertSame($view2, $this->factory->createView($list, null, null, null, null, $attr2));
diff --git a/src/Symfony/Component/Form/Tests/ChoiceList/Factory/PropertyAccessDecoratorTest.php b/src/Symfony/Component/Form/Tests/ChoiceList/Factory/PropertyAccessDecoratorTest.php
index 1b943e81c1ec9..42893696db622 100644
--- a/src/Symfony/Component/Form/Tests/ChoiceList/Factory/PropertyAccessDecoratorTest.php
+++ b/src/Symfony/Component/Form/Tests/ChoiceList/Factory/PropertyAccessDecoratorTest.php
@@ -43,9 +43,9 @@ public function testCreateFromChoicesPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($choices, $callback) {
+            ->willReturnCallback(function ($choices, $callback) {
                 return array_map($callback, $choices);
-            }));
+            });
 
         $this->assertSame(['value'], $this->factory->createListFromChoices($choices, 'property'));
     }
@@ -57,9 +57,9 @@ public function testCreateFromChoicesPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($choices, $callback) {
+            ->willReturnCallback(function ($choices, $callback) {
                 return array_map($callback, $choices);
-            }));
+            });
 
         $this->assertSame(['value'], $this->factory->createListFromChoices($choices, new PropertyPath('property')));
     }
@@ -86,9 +86,9 @@ public function testCreateFromLoaderPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromLoader')
             ->with($loader, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($loader, $callback) {
+            ->willReturnCallback(function ($loader, $callback) {
                 return $callback((object) ['property' => 'value']);
-            }));
+            });
 
         $this->assertSame('value', $this->factory->createListFromLoader($loader, 'property'));
     }
@@ -116,9 +116,9 @@ public function testCreateFromChoicesAssumeNullIfValuePropertyPathUnreadable()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromChoices')
             ->with($choices, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($choices, $callback) {
+            ->willReturnCallback(function ($choices, $callback) {
                 return array_map($callback, $choices);
-            }));
+            });
 
         $this->assertSame([null], $this->factory->createListFromChoices($choices, 'property'));
     }
@@ -131,9 +131,9 @@ public function testCreateFromChoiceLoaderAssumeNullIfValuePropertyPathUnreadabl
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromLoader')
             ->with($loader, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($loader, $callback) {
+            ->willReturnCallback(function ($loader, $callback) {
                 return $callback(null);
-            }));
+            });
 
         $this->assertNull($this->factory->createListFromLoader($loader, 'property'));
     }
@@ -145,9 +145,9 @@ public function testCreateFromLoaderPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createListFromLoader')
             ->with($loader, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($loader, $callback) {
+            ->willReturnCallback(function ($loader, $callback) {
                 return $callback((object) ['property' => 'value']);
-            }));
+            });
 
         $this->assertSame('value', $this->factory->createListFromLoader($loader, new PropertyPath('property')));
     }
@@ -159,9 +159,9 @@ public function testCreateViewPreferredChoicesAsPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred) {
+            ->willReturnCallback(function ($list, $preferred) {
                 return $preferred((object) ['property' => true]);
-            }));
+            });
 
         $this->assertTrue($this->factory->createView(
             $list,
@@ -194,9 +194,9 @@ public function testCreateViewPreferredChoicesAsPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred) {
+            ->willReturnCallback(function ($list, $preferred) {
                 return $preferred((object) ['property' => true]);
-            }));
+            });
 
         $this->assertTrue($this->factory->createView(
             $list,
@@ -212,9 +212,9 @@ public function testCreateViewAssumeNullIfPreferredChoicesPropertyPathUnreadable
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred) {
+            ->willReturnCallback(function ($list, $preferred) {
                 return $preferred((object) ['category' => null]);
-            }));
+            });
 
         $this->assertFalse($this->factory->createView(
             $list,
@@ -229,9 +229,9 @@ public function testCreateViewLabelsAsPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label) {
+            ->willReturnCallback(function ($list, $preferred, $label) {
                 return $label((object) ['property' => 'label']);
-            }));
+            });
 
         $this->assertSame('label', $this->factory->createView(
             $list,
@@ -266,9 +266,9 @@ public function testCreateViewLabelsAsPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label) {
+            ->willReturnCallback(function ($list, $preferred, $label) {
                 return $label((object) ['property' => 'label']);
-            }));
+            });
 
         $this->assertSame('label', $this->factory->createView(
             $list,
@@ -284,9 +284,9 @@ public function testCreateViewIndicesAsPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index) {
                 return $index((object) ['property' => 'index']);
-            }));
+            });
 
         $this->assertSame('index', $this->factory->createView(
             $list,
@@ -323,9 +323,9 @@ public function testCreateViewIndicesAsPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index) {
                 return $index((object) ['property' => 'index']);
-            }));
+            });
 
         $this->assertSame('index', $this->factory->createView(
             $list,
@@ -342,9 +342,9 @@ public function testCreateViewGroupsAsPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index, $groupBy) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index, $groupBy) {
                 return $groupBy((object) ['property' => 'group']);
-            }));
+            });
 
         $this->assertSame('group', $this->factory->createView(
             $list,
@@ -383,9 +383,9 @@ public function testCreateViewGroupsAsPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index, $groupBy) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index, $groupBy) {
                 return $groupBy((object) ['property' => 'group']);
-            }));
+            });
 
         $this->assertSame('group', $this->factory->createView(
             $list,
@@ -404,9 +404,9 @@ public function testCreateViewAssumeNullIfGroupsPropertyPathUnreadable()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index, $groupBy) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index, $groupBy) {
                 return $groupBy((object) ['group' => null]);
-            }));
+            });
 
         $this->assertNull($this->factory->createView(
             $list,
@@ -424,9 +424,9 @@ public function testCreateViewAttrAsPropertyPath()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index, $groupBy, $attr) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index, $groupBy, $attr) {
                 return $attr((object) ['property' => 'attr']);
-            }));
+            });
 
         $this->assertSame('attr', $this->factory->createView(
             $list,
@@ -467,9 +467,9 @@ public function testCreateViewAttrAsPropertyPathInstance()
         $this->decoratedFactory->expects($this->once())
             ->method('createView')
             ->with($list, null, null, null, null, $this->isInstanceOf('\Closure'))
-            ->will($this->returnCallback(function ($list, $preferred, $label, $index, $groupBy, $attr) {
+            ->willReturnCallback(function ($list, $preferred, $label, $index, $groupBy, $attr) {
                 return $attr((object) ['property' => 'attr']);
-            }));
+            });
 
         $this->assertSame('attr', $this->factory->createView(
             $list,
diff --git a/src/Symfony/Component/Form/Tests/ChoiceList/LazyChoiceListTest.php b/src/Symfony/Component/Form/Tests/ChoiceList/LazyChoiceListTest.php
index 60795c4aae1d5..6854c43ef733f 100644
--- a/src/Symfony/Component/Form/Tests/ChoiceList/LazyChoiceListTest.php
+++ b/src/Symfony/Component/Form/Tests/ChoiceList/LazyChoiceListTest.php
@@ -50,12 +50,12 @@ public function testGetChoiceLoadersLoadsLoadedListOnFirstCall()
         $this->loader->expects($this->exactly(2))
             ->method('loadChoiceList')
             ->with($this->value)
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         // The same list is returned by the loader
         $this->loadedList->expects($this->exactly(2))
             ->method('getChoices')
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getChoices());
         $this->assertSame('RESULT', $this->list->getChoices());
@@ -79,7 +79,7 @@ public function testGetChoicesUsesLoadedListWhenLoaderDoesNotCacheChoiceListOnFi
         // The same list is returned by the lazy choice list
         $this->loadedList->expects($this->exactly(2))
             ->method('getChoices')
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getChoices());
         $this->assertSame('RESULT', $this->list->getChoices());
@@ -90,12 +90,12 @@ public function testGetValuesLoadsLoadedListOnFirstCall()
         $this->loader->expects($this->exactly(2))
             ->method('loadChoiceList')
             ->with($this->value)
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         // The same list is returned by the loader
         $this->loadedList->expects($this->exactly(2))
             ->method('getValues')
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getValues());
         $this->assertSame('RESULT', $this->list->getValues());
@@ -106,12 +106,12 @@ public function testGetStructuredValuesLoadsLoadedListOnFirstCall()
         $this->loader->expects($this->exactly(2))
             ->method('loadChoiceList')
             ->with($this->value)
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         // The same list is returned by the loader
         $this->loadedList->expects($this->exactly(2))
             ->method('getStructuredValues')
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getStructuredValues());
         $this->assertSame('RESULT', $this->list->getStructuredValues());
@@ -122,12 +122,12 @@ public function testGetOriginalKeysLoadsLoadedListOnFirstCall()
         $this->loader->expects($this->exactly(2))
             ->method('loadChoiceList')
             ->with($this->value)
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         // The same list is returned by the loader
         $this->loadedList->expects($this->exactly(2))
             ->method('getOriginalKeys')
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getOriginalKeys());
         $this->assertSame('RESULT', $this->list->getOriginalKeys());
@@ -138,7 +138,7 @@ public function testGetChoicesForValuesForwardsCallIfListNotLoaded()
         $this->loader->expects($this->exactly(2))
             ->method('loadChoicesForValues')
             ->with(['a', 'b'])
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getChoicesForValues(['a', 'b']));
         $this->assertSame('RESULT', $this->list->getChoicesForValues(['a', 'b']));
@@ -151,7 +151,7 @@ public function testGetChoicesForValuesUsesLoadedList()
             ->with($this->value)
             // For BC, the same choice loaded list is returned 3 times
             // It should only twice in 4.0
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         $this->loader->expects($this->never())
             ->method('loadChoicesForValues');
@@ -159,7 +159,7 @@ public function testGetChoicesForValuesUsesLoadedList()
         $this->loadedList->expects($this->exactly(2))
             ->method('getChoicesForValues')
             ->with(['a', 'b'])
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         // load choice list
         $this->list->getChoices();
@@ -176,7 +176,7 @@ public function testGetValuesForChoicesForwardsCallIfListNotLoaded()
         $this->loader->expects($this->exactly(2))
             ->method('loadValuesForChoices')
             ->with(['a', 'b'])
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         $this->assertSame('RESULT', $this->list->getValuesForChoices(['a', 'b']));
         $this->assertSame('RESULT', $this->list->getValuesForChoices(['a', 'b']));
@@ -189,7 +189,7 @@ public function testGetValuesForChoicesUsesLoadedList()
             ->with($this->value)
             // For BC, the same choice loaded list is returned 3 times
             // It should only twice in 4.0
-            ->will($this->returnValue($this->loadedList));
+            ->willReturn($this->loadedList);
 
         $this->loader->expects($this->never())
             ->method('loadValuesForChoices');
@@ -197,7 +197,7 @@ public function testGetValuesForChoicesUsesLoadedList()
         $this->loadedList->expects($this->exactly(2))
             ->method('getValuesForChoices')
             ->with(['a', 'b'])
-            ->will($this->returnValue('RESULT'));
+            ->willReturn('RESULT');
 
         // load choice list
         $this->list->getChoices();
diff --git a/src/Symfony/Component/Form/Tests/CompoundFormTest.php b/src/Symfony/Component/Form/Tests/CompoundFormTest.php
index edc3aeda14b2c..7657056b7ada1 100644
--- a/src/Symfony/Component/Form/Tests/CompoundFormTest.php
+++ b/src/Symfony/Component/Form/Tests/CompoundFormTest.php
@@ -179,7 +179,7 @@ public function testAddUsingNameAndType()
                 'bar' => 'baz',
                 'auto_initialize' => false,
             ])
-            ->will($this->returnValue($child));
+            ->willReturn($child);
 
         $this->form->add('foo', 'Symfony\Component\Form\Extension\Core\Type\TextType', ['bar' => 'baz']);
 
@@ -198,7 +198,7 @@ public function testAddUsingIntegerNameAndType()
                 'bar' => 'baz',
                 'auto_initialize' => false,
             ])
-            ->will($this->returnValue($child));
+            ->willReturn($child);
 
         // in order to make casting unnecessary
         $this->form->add(0, 'Symfony\Component\Form\Extension\Core\Type\TextType', ['bar' => 'baz']);
@@ -215,7 +215,7 @@ public function testAddWithoutType()
         $this->factory->expects($this->once())
             ->method('createNamed')
             ->with('foo', 'Symfony\Component\Form\Extension\Core\Type\TextType')
-            ->will($this->returnValue($child));
+            ->willReturn($child);
 
         $this->form->add('foo');
 
@@ -236,7 +236,7 @@ public function testAddUsingNameButNoType()
         $this->factory->expects($this->once())
             ->method('createForProperty')
             ->with('\stdClass', 'foo')
-            ->will($this->returnValue($child));
+            ->willReturn($child);
 
         $this->form->add('foo');
 
@@ -260,7 +260,7 @@ public function testAddUsingNameButNoTypeAndOptions()
                 'bar' => 'baz',
                 'auto_initialize' => false,
             ])
-            ->will($this->returnValue($child));
+            ->willReturn($child);
 
         $this->form->add('foo', null, ['bar' => 'baz']);
 
@@ -352,10 +352,10 @@ public function testAddMapsViewDataToFormIfInitialized()
         $mapper->expects($this->once())
             ->method('mapDataToForms')
             ->with('bar', $this->isInstanceOf('\RecursiveIteratorIterator'))
-            ->will($this->returnCallback(function ($data, \RecursiveIteratorIterator $iterator) use ($child) {
+            ->willReturnCallback(function ($data, \RecursiveIteratorIterator $iterator) use ($child) {
                 $this->assertInstanceOf('Symfony\Component\Form\Util\InheritDataAwareIterator', $iterator->getInnerIterator());
                 $this->assertSame([$child->getName() => $child], iterator_to_array($iterator));
-            }));
+            });
 
         $form->initialize();
         $form->add($child);
@@ -442,10 +442,10 @@ public function testSetDataMapsViewDataToChildren()
         $mapper->expects($this->once())
             ->method('mapDataToForms')
             ->with('bar', $this->isInstanceOf('\RecursiveIteratorIterator'))
-            ->will($this->returnCallback(function ($data, \RecursiveIteratorIterator $iterator) use ($child1, $child2) {
+            ->willReturnCallback(function ($data, \RecursiveIteratorIterator $iterator) use ($child1, $child2) {
                 $this->assertInstanceOf('Symfony\Component\Form\Util\InheritDataAwareIterator', $iterator->getInnerIterator());
                 $this->assertSame(['firstName' => $child1, 'lastName' => $child2], iterator_to_array($iterator));
-            }));
+            });
 
         $form->setData('foo');
     }
@@ -517,12 +517,12 @@ public function testSubmitMapsSubmittedChildrenOntoExistingViewData()
         $mapper->expects($this->once())
             ->method('mapFormsToData')
             ->with($this->isInstanceOf('\RecursiveIteratorIterator'), 'bar')
-            ->will($this->returnCallback(function (\RecursiveIteratorIterator $iterator) use ($child1, $child2) {
+            ->willReturnCallback(function (\RecursiveIteratorIterator $iterator) use ($child1, $child2) {
                 $this->assertInstanceOf('Symfony\Component\Form\Util\InheritDataAwareIterator', $iterator->getInnerIterator());
                 $this->assertSame(['firstName' => $child1, 'lastName' => $child2], iterator_to_array($iterator));
                 $this->assertEquals('Bernhard', $child1->getData());
                 $this->assertEquals('Schussek', $child2->getData());
-            }));
+            });
 
         $form->submit([
             'firstName' => 'Bernhard',
@@ -589,10 +589,10 @@ public function testSubmitMapsSubmittedChildrenOntoEmptyData()
         $mapper->expects($this->once())
             ->method('mapFormsToData')
             ->with($this->isInstanceOf('\RecursiveIteratorIterator'), $object)
-            ->will($this->returnCallback(function (\RecursiveIteratorIterator $iterator) use ($child) {
+            ->willReturnCallback(function (\RecursiveIteratorIterator $iterator) use ($child) {
                 $this->assertInstanceOf('Symfony\Component\Form\Util\InheritDataAwareIterator', $iterator->getInnerIterator());
                 $this->assertSame(['name' => $child], iterator_to_array($iterator));
-            }));
+            });
 
         $form->submit([
             'name' => 'Bernhard',
@@ -912,11 +912,11 @@ public function testCreateViewWithChildren()
         $field1View = new FormView();
         $type1
             ->method('createView')
-            ->will($this->returnValue($field1View));
+            ->willReturn($field1View);
         $field2View = new FormView();
         $type2
             ->method('createView')
-            ->will($this->returnValue($field2View));
+            ->willReturn($field2View);
 
         $this->form = $this->getBuilder('form', null, null, $options)
             ->setCompound(true)
@@ -935,13 +935,13 @@ public function testCreateViewWithChildren()
         // First create the view
         $type->expects($this->once())
             ->method('createView')
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         // Then build it for the form itself
         $type->expects($this->once())
             ->method('buildView')
             ->with($view, $this->form, $options)
-            ->will($this->returnCallback($assertChildViewsEqual([])));
+            ->willReturnCallback($assertChildViewsEqual([]));
 
         $this->assertSame($view, $this->form->createView());
         $this->assertSame(['foo' => $field1View, 'bar' => $field2View], $view->children);
@@ -961,7 +961,7 @@ public function testNoClickedButton()
 
         $button->expects($this->any())
             ->method('isClicked')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $parentForm = $this->getBuilder('parent')->getForm();
         $nestedForm = $this->getBuilder('nested')->getForm();
@@ -983,7 +983,7 @@ public function testClickedButton()
 
         $button->expects($this->any())
             ->method('isClicked')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->form->add($button);
         $this->form->submit([]);
@@ -1002,7 +1002,7 @@ public function testClickedButtonFromNestedForm()
 
         $nestedForm->expects($this->any())
             ->method('getClickedButton')
-            ->will($this->returnValue($button));
+            ->willReturn($button);
 
         $this->form->add($nestedForm);
         $this->form->submit([]);
@@ -1021,7 +1021,7 @@ public function testClickedButtonFromParentForm()
 
         $parentForm->expects($this->any())
             ->method('getClickedButton')
-            ->will($this->returnValue($button));
+            ->willReturn($button);
 
         $this->form->setParent($parentForm);
         $this->form->submit([]);
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DataTransformerChainTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DataTransformerChainTest.php
index f62d3c52110f1..2c685a4197a95 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DataTransformerChainTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DataTransformerChainTest.php
@@ -22,12 +22,12 @@ public function testTransform()
         $transformer1->expects($this->once())
             ->method('transform')
             ->with($this->identicalTo('foo'))
-            ->will($this->returnValue('bar'));
+            ->willReturn('bar');
         $transformer2 = $this->getMockBuilder('Symfony\Component\Form\DataTransformerInterface')->getMock();
         $transformer2->expects($this->once())
             ->method('transform')
             ->with($this->identicalTo('bar'))
-            ->will($this->returnValue('baz'));
+            ->willReturn('baz');
 
         $chain = new DataTransformerChain([$transformer1, $transformer2]);
 
@@ -40,12 +40,12 @@ public function testReverseTransform()
         $transformer2->expects($this->once())
             ->method('reverseTransform')
             ->with($this->identicalTo('foo'))
-            ->will($this->returnValue('bar'));
+            ->willReturn('bar');
         $transformer1 = $this->getMockBuilder('Symfony\Component\Form\DataTransformerInterface')->getMock();
         $transformer1->expects($this->once())
             ->method('reverseTransform')
             ->with($this->identicalTo('bar'))
-            ->will($this->returnValue('baz'));
+            ->willReturn('baz');
 
         $chain = new DataTransformerChain([$transformer1, $transformer2]);
 
diff --git a/src/Symfony/Component/Form/Tests/Extension/Csrf/Type/FormTypeCsrfExtensionTest.php b/src/Symfony/Component/Form/Tests/Extension/Csrf/Type/FormTypeCsrfExtensionTest.php
index 083f1c956792d..665b700479735 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Csrf/Type/FormTypeCsrfExtensionTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Csrf/Type/FormTypeCsrfExtensionTest.php
@@ -122,7 +122,7 @@ public function testGenerateCsrfToken()
         $this->tokenManager->expects($this->once())
             ->method('getToken')
             ->with('TOKEN_ID')
-            ->will($this->returnValue(new CsrfToken('TOKEN_ID', 'token')));
+            ->willReturn(new CsrfToken('TOKEN_ID', 'token'));
 
         $view = $this->factory
             ->create('Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -141,7 +141,7 @@ public function testGenerateCsrfTokenUsesFormNameAsIntentionByDefault()
         $this->tokenManager->expects($this->once())
             ->method('getToken')
             ->with('FORM_NAME')
-            ->will($this->returnValue('token'));
+            ->willReturn('token');
 
         $view = $this->factory
             ->createNamed('FORM_NAME', 'Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -159,7 +159,7 @@ public function testGenerateCsrfTokenUsesTypeClassAsIntentionIfEmptyFormName()
         $this->tokenManager->expects($this->once())
             ->method('getToken')
             ->with('Symfony\Component\Form\Extension\Core\Type\FormType')
-            ->will($this->returnValue('token'));
+            ->willReturn('token');
 
         $view = $this->factory
             ->createNamed('', 'Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -188,7 +188,7 @@ public function testValidateTokenOnSubmitIfRootAndCompound($valid)
         $this->tokenManager->expects($this->once())
             ->method('isTokenValid')
             ->with(new CsrfToken('TOKEN_ID', 'token'))
-            ->will($this->returnValue($valid));
+            ->willReturn($valid);
 
         $form = $this->factory
             ->createBuilder('Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -220,7 +220,7 @@ public function testValidateTokenOnSubmitIfRootAndCompoundUsesFormNameAsIntentio
         $this->tokenManager->expects($this->once())
             ->method('isTokenValid')
             ->with(new CsrfToken('FORM_NAME', 'token'))
-            ->will($this->returnValue($valid));
+            ->willReturn($valid);
 
         $form = $this->factory
             ->createNamedBuilder('FORM_NAME', 'Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -251,7 +251,7 @@ public function testValidateTokenOnSubmitIfRootAndCompoundUsesTypeClassAsIntenti
         $this->tokenManager->expects($this->once())
             ->method('isTokenValid')
             ->with(new CsrfToken('Symfony\Component\Form\Extension\Core\Type\FormType', 'token'))
-            ->will($this->returnValue($valid));
+            ->willReturn($valid);
 
         $form = $this->factory
             ->createNamedBuilder('', 'Symfony\Component\Form\Extension\Core\Type\FormType', null, [
@@ -366,12 +366,12 @@ public function testsTranslateCustomErrorMessage()
         $this->tokenManager->expects($this->once())
             ->method('isTokenValid')
             ->with(new CsrfToken('TOKEN_ID', 'token'))
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->translator->expects($this->once())
              ->method('trans')
              ->with('Foobar')
-             ->will($this->returnValue('[trans]Foobar[/trans]'));
+             ->willReturn('[trans]Foobar[/trans]');
 
         $form = $this->factory
             ->createBuilder('Symfony\Component\Form\Extension\Core\Type\FormType', null, [
diff --git a/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataCollectorTest.php b/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataCollectorTest.php
index 2ca0f95f3c6e3..83d44167d5cf4 100644
--- a/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataCollectorTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataCollectorTest.php
@@ -84,29 +84,29 @@ public function testBuildPreliminaryFormTree()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($this->form)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($this->childForm)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         $this->dataExtractor->expects($this->at(2))
             ->method('extractDefaultData')
             ->with($this->form)
-            ->will($this->returnValue(['default_data' => 'foo']));
+            ->willReturn(['default_data' => 'foo']);
         $this->dataExtractor->expects($this->at(3))
             ->method('extractDefaultData')
             ->with($this->childForm)
-            ->will($this->returnValue(['default_data' => 'bar']));
+            ->willReturn(['default_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(4))
             ->method('extractSubmittedData')
             ->with($this->form)
-            ->will($this->returnValue(['submitted_data' => 'foo']));
+            ->willReturn(['submitted_data' => 'foo']);
         $this->dataExtractor->expects($this->at(5))
             ->method('extractSubmittedData')
             ->with($this->childForm)
-            ->will($this->returnValue(['submitted_data' => 'bar']));
+            ->willReturn(['submitted_data' => 'bar']);
 
         $this->dataCollector->collectConfiguration($this->form);
         $this->dataCollector->collectDefaultData($this->form);
@@ -150,11 +150,11 @@ public function testBuildMultiplePreliminaryFormTrees()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($form1)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($form2)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         $this->dataCollector->collectConfiguration($form1);
         $this->dataCollector->collectConfiguration($form2);
@@ -200,12 +200,12 @@ public function testBuildSamePreliminaryFormTreeMultipleTimes()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($this->form)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
 
         $this->dataExtractor->expects($this->at(1))
             ->method('extractDefaultData')
             ->with($this->form)
-            ->will($this->returnValue(['default_data' => 'foo']));
+            ->willReturn(['default_data' => 'foo']);
 
         $this->dataCollector->collectConfiguration($this->form);
         $this->dataCollector->buildPreliminaryFormTree($this->form);
@@ -272,39 +272,39 @@ public function testBuildFinalFormTree()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($this->form)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($this->childForm)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         $this->dataExtractor->expects($this->at(2))
             ->method('extractDefaultData')
             ->with($this->form)
-            ->will($this->returnValue(['default_data' => 'foo']));
+            ->willReturn(['default_data' => 'foo']);
         $this->dataExtractor->expects($this->at(3))
             ->method('extractDefaultData')
             ->with($this->childForm)
-            ->will($this->returnValue(['default_data' => 'bar']));
+            ->willReturn(['default_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(4))
             ->method('extractSubmittedData')
             ->with($this->form)
-            ->will($this->returnValue(['submitted_data' => 'foo']));
+            ->willReturn(['submitted_data' => 'foo']);
         $this->dataExtractor->expects($this->at(5))
             ->method('extractSubmittedData')
             ->with($this->childForm)
-            ->will($this->returnValue(['submitted_data' => 'bar']));
+            ->willReturn(['submitted_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(6))
             ->method('extractViewVariables')
             ->with($this->view)
-            ->will($this->returnValue(['view_vars' => 'foo']));
+            ->willReturn(['view_vars' => 'foo']);
 
         $this->dataExtractor->expects($this->at(7))
             ->method('extractViewVariables')
             ->with($this->childView)
-            ->will($this->returnValue(['view_vars' => 'bar']));
+            ->willReturn(['view_vars' => 'bar']);
 
         $this->dataCollector->collectConfiguration($this->form);
         $this->dataCollector->collectDefaultData($this->form);
@@ -365,76 +365,76 @@ public function testSerializeWithFormAddedMultipleTimes()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($form1)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($child1)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         $this->dataExtractor->expects($this->at(2))
             ->method('extractDefaultData')
             ->with($form1)
-            ->will($this->returnValue(['default_data' => 'foo']));
+            ->willReturn(['default_data' => 'foo']);
         $this->dataExtractor->expects($this->at(3))
             ->method('extractDefaultData')
             ->with($child1)
-            ->will($this->returnValue(['default_data' => 'bar']));
+            ->willReturn(['default_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(4))
             ->method('extractSubmittedData')
             ->with($form1)
-            ->will($this->returnValue(['submitted_data' => 'foo']));
+            ->willReturn(['submitted_data' => 'foo']);
         $this->dataExtractor->expects($this->at(5))
             ->method('extractSubmittedData')
             ->with($child1)
-            ->will($this->returnValue(['submitted_data' => 'bar']));
+            ->willReturn(['submitted_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(6))
             ->method('extractViewVariables')
             ->with($form1View)
-            ->will($this->returnValue(['view_vars' => 'foo']));
+            ->willReturn(['view_vars' => 'foo']);
 
         $this->dataExtractor->expects($this->at(7))
             ->method('extractViewVariables')
             ->with($child1View)
-            ->will($this->returnValue(['view_vars' => $child1View->vars]));
+            ->willReturn(['view_vars' => $child1View->vars]);
 
         $this->dataExtractor->expects($this->at(8))
             ->method('extractConfiguration')
             ->with($form2)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(9))
             ->method('extractConfiguration')
             ->with($child1)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         $this->dataExtractor->expects($this->at(10))
             ->method('extractDefaultData')
             ->with($form2)
-            ->will($this->returnValue(['default_data' => 'foo']));
+            ->willReturn(['default_data' => 'foo']);
         $this->dataExtractor->expects($this->at(11))
             ->method('extractDefaultData')
             ->with($child1)
-            ->will($this->returnValue(['default_data' => 'bar']));
+            ->willReturn(['default_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(12))
             ->method('extractSubmittedData')
             ->with($form2)
-            ->will($this->returnValue(['submitted_data' => 'foo']));
+            ->willReturn(['submitted_data' => 'foo']);
         $this->dataExtractor->expects($this->at(13))
             ->method('extractSubmittedData')
             ->with($child1)
-            ->will($this->returnValue(['submitted_data' => 'bar']));
+            ->willReturn(['submitted_data' => 'bar']);
 
         $this->dataExtractor->expects($this->at(14))
             ->method('extractViewVariables')
             ->with($form2View)
-            ->will($this->returnValue(['view_vars' => 'foo']));
+            ->willReturn(['view_vars' => 'foo']);
 
         $this->dataExtractor->expects($this->at(15))
             ->method('extractViewVariables')
             ->with($child1View)
-            ->will($this->returnValue(['view_vars' => $child1View->vars]));
+            ->willReturn(['view_vars' => $child1View->vars]);
 
         $this->dataCollector->collectConfiguration($form1);
         $this->dataCollector->collectDefaultData($form1);
@@ -518,11 +518,11 @@ public function testChildViewsCanBeWithoutCorrespondingChildForms()
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($this->form)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($this->childForm)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         // explicitly call collectConfiguration(), since $this->childForm is not
         // contained in the form tree
@@ -566,11 +566,11 @@ public function testChildViewsWithoutCorrespondingChildFormsMayBeExplicitlyAssoc
         $this->dataExtractor->expects($this->at(0))
             ->method('extractConfiguration')
             ->with($this->form)
-            ->will($this->returnValue(['config' => 'foo']));
+            ->willReturn(['config' => 'foo']);
         $this->dataExtractor->expects($this->at(1))
             ->method('extractConfiguration')
             ->with($this->childForm)
-            ->will($this->returnValue(['config' => 'bar']));
+            ->willReturn(['config' => 'bar']);
 
         // explicitly call collectConfiguration(), since $this->childForm is not
         // contained in the form tree
@@ -611,22 +611,22 @@ public function testCollectSubmittedDataCountsErrors()
         $form1->add($childForm1);
         $this->dataExtractor
              ->method('extractConfiguration')
-             ->will($this->returnValue([]));
+             ->willReturn([]);
         $this->dataExtractor
              ->method('extractDefaultData')
-             ->will($this->returnValue([]));
+             ->willReturn([]);
         $this->dataExtractor->expects($this->at(4))
             ->method('extractSubmittedData')
             ->with($form1)
-            ->will($this->returnValue(['errors' => ['foo']]));
+            ->willReturn(['errors' => ['foo']]);
         $this->dataExtractor->expects($this->at(5))
             ->method('extractSubmittedData')
             ->with($childForm1)
-            ->will($this->returnValue(['errors' => ['bar', 'bam']]));
+            ->willReturn(['errors' => ['bar', 'bam']]);
         $this->dataExtractor->expects($this->at(8))
             ->method('extractSubmittedData')
             ->with($form2)
-            ->will($this->returnValue(['errors' => ['baz']]));
+            ->willReturn(['errors' => ['baz']]);
 
         $this->dataCollector->collectSubmittedData($form1);
 
@@ -653,30 +653,30 @@ public function testCollectSubmittedDataExpandedFormsErrors()
 
         $this->dataExtractor
             ->method('extractConfiguration')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
         $this->dataExtractor
             ->method('extractDefaultData')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
         $this->dataExtractor->expects($this->at(10))
             ->method('extractSubmittedData')
             ->with($this->form)
-            ->will($this->returnValue(['errors' => []]));
+            ->willReturn(['errors' => []]);
         $this->dataExtractor->expects($this->at(11))
             ->method('extractSubmittedData')
             ->with($child1Form)
-            ->will($this->returnValue(['errors' => []]));
+            ->willReturn(['errors' => []]);
         $this->dataExtractor->expects($this->at(12))
             ->method('extractSubmittedData')
             ->with($child11Form)
-            ->will($this->returnValue(['errors' => ['foo']]));
+            ->willReturn(['errors' => ['foo']]);
         $this->dataExtractor->expects($this->at(13))
             ->method('extractSubmittedData')
             ->with($child2Form)
-            ->will($this->returnValue(['errors' => []]));
+            ->willReturn(['errors' => []]);
         $this->dataExtractor->expects($this->at(14))
             ->method('extractSubmittedData')
             ->with($child21Form)
-            ->will($this->returnValue(['errors' => []]));
+            ->willReturn(['errors' => []]);
 
         $this->dataCollector->collectSubmittedData($this->form);
         $this->dataCollector->buildPreliminaryFormTree($this->form);
@@ -701,14 +701,14 @@ public function testReset()
 
         $this->dataExtractor->expects($this->any())
             ->method('extractConfiguration')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
         $this->dataExtractor->expects($this->any())
             ->method('extractDefaultData')
-            ->will($this->returnValue([]));
+            ->willReturn([]);
         $this->dataExtractor->expects($this->any())
             ->method('extractSubmittedData')
             ->with($form)
-            ->will($this->returnValue(['errors' => ['baz']]));
+            ->willReturn(['errors' => ['baz']]);
 
         $this->dataCollector->buildPreliminaryFormTree($form);
         $this->dataCollector->collectSubmittedData($form);
diff --git a/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataExtractorTest.php b/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataExtractorTest.php
index 9bbfb0f4f11ee..860a96abcddfa 100644
--- a/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataExtractorTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataExtractorTest.php
@@ -56,7 +56,7 @@ public function testExtractConfiguration()
         $type = $this->getMockBuilder('Symfony\Component\Form\ResolvedFormTypeInterface')->getMock();
         $type->expects($this->any())
             ->method('getInnerType')
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $form = $this->createBuilder('name')
             ->setType($type)
@@ -77,7 +77,7 @@ public function testExtractConfigurationSortsPassedOptions()
         $type = $this->getMockBuilder('Symfony\Component\Form\ResolvedFormTypeInterface')->getMock();
         $type->expects($this->any())
             ->method('getInnerType')
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $options = [
             'b' => 'foo',
@@ -111,7 +111,7 @@ public function testExtractConfigurationSortsResolvedOptions()
         $type = $this->getMockBuilder('Symfony\Component\Form\ResolvedFormTypeInterface')->getMock();
         $type->expects($this->any())
             ->method('getInnerType')
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $options = [
             'b' => 'foo',
@@ -142,7 +142,7 @@ public function testExtractConfigurationBuildsIdRecursively()
         $type = $this->getMockBuilder('Symfony\Component\Form\ResolvedFormTypeInterface')->getMock();
         $type->expects($this->any())
             ->method('getInnerType')
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $grandParent = $this->createBuilder('grandParent')
             ->setCompound(true)
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
index 53d29a19112c7..57f92b6574e3b 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
@@ -42,7 +42,7 @@ public function testSubmitValidatesData()
         $this->validator->expects($this->once())
             ->method('validate')
             ->with($this->equalTo($form))
-            ->will($this->returnValue(new ConstraintViolationList()));
+            ->willReturn(new ConstraintViolationList());
 
         // specific data is irrelevant
         $form->submit([]);
diff --git a/src/Symfony/Component/Form/Tests/FormBuilderTest.php b/src/Symfony/Component/Form/Tests/FormBuilderTest.php
index ecab2bb5d91ef..1247a80bbda30 100644
--- a/src/Symfony/Component/Form/Tests/FormBuilderTest.php
+++ b/src/Symfony/Component/Form/Tests/FormBuilderTest.php
@@ -91,7 +91,7 @@ public function testAll()
         $this->factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('foo', 'Symfony\Component\Form\Extension\Core\Type\TextType')
-            ->will($this->returnValue(new FormBuilder('foo', null, $this->dispatcher, $this->factory)));
+            ->willReturn(new FormBuilder('foo', null, $this->dispatcher, $this->factory));
 
         $this->assertCount(0, $this->builder->all());
         $this->assertFalse($this->builder->has('foo'));
@@ -186,7 +186,7 @@ public function testGetExplicitType()
         $this->factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with($expectedName, $expectedType, null, $expectedOptions)
-            ->will($this->returnValue($this->getFormBuilder()));
+            ->willReturn($this->getFormBuilder());
 
         $this->builder->add($expectedName, $expectedType, $expectedOptions);
         $builder = $this->builder->get($expectedName);
@@ -202,7 +202,7 @@ public function testGetGuessedType()
         $this->factory->expects($this->once())
             ->method('createBuilderForProperty')
             ->with('stdClass', $expectedName, null, $expectedOptions)
-            ->will($this->returnValue($this->getFormBuilder()));
+            ->willReturn($this->getFormBuilder());
 
         $this->builder = new FormBuilder('name', 'stdClass', $this->dispatcher, $this->factory);
         $this->builder->add($expectedName, null, $expectedOptions);
@@ -236,7 +236,7 @@ private function getFormBuilder($name = 'name')
 
         $mock->expects($this->any())
             ->method('getName')
-            ->will($this->returnValue($name));
+            ->willReturn($name);
 
         return $mock;
     }
diff --git a/src/Symfony/Component/Form/Tests/FormFactoryTest.php b/src/Symfony/Component/Form/Tests/FormFactoryTest.php
index 27a5ca6e20f7c..4426310676538 100644
--- a/src/Symfony/Component/Form/Tests/FormFactoryTest.php
+++ b/src/Symfony/Component/Form/Tests/FormFactoryTest.php
@@ -58,10 +58,10 @@ protected function setUp()
 
         $this->registry->expects($this->any())
             ->method('getTypeGuesser')
-            ->will($this->returnValue(new FormTypeGuesserChain([
+            ->willReturn(new FormTypeGuesserChain([
                 $this->guesser1,
                 $this->guesser2,
-            ])));
+            ]));
     }
 
     public function testCreateNamedBuilderWithTypeName()
@@ -73,16 +73,16 @@ public function testCreateNamedBuilderWithTypeName()
         $this->registry->expects($this->once())
             ->method('getType')
             ->with('type')
-            ->will($this->returnValue($resolvedType));
+            ->willReturn($resolvedType);
 
         $resolvedType->expects($this->once())
             ->method('createBuilder')
             ->with($this->factory, 'name', $options)
-            ->will($this->returnValue($this->builder));
+            ->willReturn($this->builder);
 
         $this->builder->expects($this->any())
             ->method('getOptions')
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $resolvedType->expects($this->once())
             ->method('buildForm')
@@ -101,16 +101,16 @@ public function testCreateNamedBuilderFillsDataOption()
         $this->registry->expects($this->once())
             ->method('getType')
             ->with('type')
-            ->will($this->returnValue($resolvedType));
+            ->willReturn($resolvedType);
 
         $resolvedType->expects($this->once())
             ->method('createBuilder')
             ->with($this->factory, 'name', $expectedOptions)
-            ->will($this->returnValue($this->builder));
+            ->willReturn($this->builder);
 
         $this->builder->expects($this->any())
             ->method('getOptions')
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $resolvedType->expects($this->once())
             ->method('buildForm')
@@ -128,16 +128,16 @@ public function testCreateNamedBuilderDoesNotOverrideExistingDataOption()
         $this->registry->expects($this->once())
             ->method('getType')
             ->with('type')
-            ->will($this->returnValue($resolvedType));
+            ->willReturn($resolvedType);
 
         $resolvedType->expects($this->once())
             ->method('createBuilder')
             ->with($this->factory, 'name', $options)
-            ->will($this->returnValue($this->builder));
+            ->willReturn($this->builder);
 
         $this->builder->expects($this->any())
             ->method('getOptions')
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $resolvedType->expects($this->once())
             ->method('buildForm')
@@ -181,16 +181,16 @@ public function testCreateUsesBlockPrefixIfTypeGivenAsString()
         $this->registry->expects($this->any())
             ->method('getType')
             ->with('TYPE')
-            ->will($this->returnValue($resolvedType));
+            ->willReturn($resolvedType);
 
         $resolvedType->expects($this->once())
             ->method('createBuilder')
             ->with($this->factory, 'TYPE_PREFIX', $options)
-            ->will($this->returnValue($this->builder));
+            ->willReturn($this->builder);
 
         $this->builder->expects($this->any())
             ->method('getOptions')
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $resolvedType->expects($this->once())
             ->method('buildForm')
@@ -198,7 +198,7 @@ public function testCreateUsesBlockPrefixIfTypeGivenAsString()
 
         $this->builder->expects($this->once())
             ->method('getForm')
-            ->will($this->returnValue('FORM'));
+            ->willReturn('FORM');
 
         $this->assertSame('FORM', $this->factory->create('TYPE', null, $options));
     }
@@ -212,16 +212,16 @@ public function testCreateNamed()
         $this->registry->expects($this->once())
             ->method('getType')
             ->with('type')
-            ->will($this->returnValue($resolvedType));
+            ->willReturn($resolvedType);
 
         $resolvedType->expects($this->once())
             ->method('createBuilder')
             ->with($this->factory, 'name', $options)
-            ->will($this->returnValue($this->builder));
+            ->willReturn($this->builder);
 
         $this->builder->expects($this->any())
             ->method('getOptions')
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $resolvedType->expects($this->once())
             ->method('buildForm')
@@ -229,7 +229,7 @@ public function testCreateNamed()
 
         $this->builder->expects($this->once())
             ->method('getForm')
-            ->will($this->returnValue('FORM'));
+            ->willReturn('FORM');
 
         $this->assertSame('FORM', $this->factory->createNamed('name', 'type', null, $options));
     }
@@ -245,7 +245,7 @@ public function testCreateBuilderForPropertyWithoutTypeGuesser()
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, [])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty('Application\Author', 'firstName');
 
@@ -257,27 +257,27 @@ public function testCreateBuilderForPropertyCreatesFormWithHighestConfidence()
         $this->guesser1->expects($this->once())
             ->method('guessType')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new TypeGuess(
+            ->willReturn(new TypeGuess(
                 'Symfony\Component\Form\Extension\Core\Type\TextType',
                 ['attr' => ['maxlength' => 10]],
                 Guess::MEDIUM_CONFIDENCE
-            )));
+            ));
 
         $this->guesser2->expects($this->once())
             ->method('guessType')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new TypeGuess(
+            ->willReturn(new TypeGuess(
                 'Symfony\Component\Form\Extension\Core\Type\PasswordType',
                 ['attr' => ['maxlength' => 7]],
                 Guess::HIGH_CONFIDENCE
-            )));
+            ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\PasswordType', null, ['attr' => ['maxlength' => 7]])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty('Application\Author', 'firstName');
 
@@ -289,14 +289,14 @@ public function testCreateBuilderCreatesTextFormIfNoGuess()
         $this->guesser1->expects($this->once())
             ->method('guessType')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType')
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty('Application\Author', 'firstName');
 
@@ -308,18 +308,18 @@ public function testOptionsCanBeOverridden()
         $this->guesser1->expects($this->once())
             ->method('guessType')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new TypeGuess(
+            ->willReturn(new TypeGuess(
                 'Symfony\Component\Form\Extension\Core\Type\TextType',
                 ['attr' => ['class' => 'foo', 'maxlength' => 10]],
                 Guess::MEDIUM_CONFIDENCE
-            )));
+            ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, ['attr' => ['class' => 'foo', 'maxlength' => 11]])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty(
             'Application\Author',
@@ -336,25 +336,25 @@ public function testCreateBuilderUsesMaxLengthIfFound()
         $this->guesser1->expects($this->once())
             ->method('guessMaxLength')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     15,
                     Guess::MEDIUM_CONFIDENCE
-                )));
+                ));
 
         $this->guesser2->expects($this->once())
             ->method('guessMaxLength')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     20,
                     Guess::HIGH_CONFIDENCE
-                )));
+                ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, ['attr' => ['maxlength' => 20]])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty(
             'Application\Author',
@@ -369,25 +369,25 @@ public function testCreateBuilderUsesMaxLengthAndPattern()
         $this->guesser1->expects($this->once())
             ->method('guessMaxLength')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                 20,
                 Guess::HIGH_CONFIDENCE
-            )));
+            ));
 
         $this->guesser2->expects($this->once())
             ->method('guessPattern')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                 '.{5,}',
                 Guess::HIGH_CONFIDENCE
-            )));
+            ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, ['attr' => ['maxlength' => 20, 'pattern' => '.{5,}', 'class' => 'tinymce']])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty(
             'Application\Author',
@@ -404,25 +404,25 @@ public function testCreateBuilderUsesRequiredSettingWithHighestConfidence()
         $this->guesser1->expects($this->once())
             ->method('guessRequired')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     true,
                     Guess::MEDIUM_CONFIDENCE
-                )));
+                ));
 
         $this->guesser2->expects($this->once())
             ->method('guessRequired')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     false,
                     Guess::HIGH_CONFIDENCE
-                )));
+                ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, ['required' => false])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty(
             'Application\Author',
@@ -437,25 +437,25 @@ public function testCreateBuilderUsesPatternIfFound()
         $this->guesser1->expects($this->once())
             ->method('guessPattern')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     '[a-z]',
                     Guess::MEDIUM_CONFIDENCE
-                )));
+                ));
 
         $this->guesser2->expects($this->once())
             ->method('guessPattern')
             ->with('Application\Author', 'firstName')
-            ->will($this->returnValue(new ValueGuess(
+            ->willReturn(new ValueGuess(
                     '[a-zA-Z]',
                     Guess::HIGH_CONFIDENCE
-                )));
+                ));
 
         $factory = $this->getMockFactory(['createNamedBuilder']);
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
             ->with('firstName', 'Symfony\Component\Form\Extension\Core\Type\TextType', null, ['attr' => ['pattern' => '[a-zA-Z]']])
-            ->will($this->returnValue('builderInstance'));
+            ->willReturn('builderInstance');
 
         $this->builder = $factory->createBuilderForProperty(
             'Application\Author',
diff --git a/src/Symfony/Component/Form/Tests/ResolvedFormTypeTest.php b/src/Symfony/Component/Form/Tests/ResolvedFormTypeTest.php
index 32bb8bb788716..ba078ad1fd119 100644
--- a/src/Symfony/Component/Form/Tests/ResolvedFormTypeTest.php
+++ b/src/Symfony/Component/Form/Tests/ResolvedFormTypeTest.php
@@ -99,21 +99,21 @@ public function testGetOptionsResolver()
         // First the default options are generated for the super type
         $this->parentType->expects($this->once())
             ->method('configureOptions')
-            ->will($this->returnCallback($assertIndexAndAddOption(0, 'a', 'a_default')));
+            ->willReturnCallback($assertIndexAndAddOption(0, 'a', 'a_default'));
 
         // The form type itself
         $this->type->expects($this->once())
             ->method('configureOptions')
-            ->will($this->returnCallback($assertIndexAndAddOption(1, 'b', 'b_default')));
+            ->willReturnCallback($assertIndexAndAddOption(1, 'b', 'b_default'));
 
         // And its extensions
         $this->extension1->expects($this->once())
             ->method('configureOptions')
-            ->will($this->returnCallback($assertIndexAndAddOption(2, 'c', 'c_default')));
+            ->willReturnCallback($assertIndexAndAddOption(2, 'c', 'c_default'));
 
         $this->extension2->expects($this->once())
             ->method('configureOptions')
-            ->will($this->returnCallback($assertIndexAndAddOption(3, 'd', 'd_default')));
+            ->willReturnCallback($assertIndexAndAddOption(3, 'd', 'd_default'));
 
         $givenOptions = ['a' => 'a_custom', 'c' => 'c_custom'];
         $resolvedOptions = ['a' => 'a_custom', 'b' => 'b_default', 'c' => 'c_custom', 'd' => 'd_default'];
@@ -136,12 +136,12 @@ public function testCreateBuilder()
 
         $this->resolvedType->expects($this->once())
             ->method('getOptionsResolver')
-            ->will($this->returnValue($optionsResolver));
+            ->willReturn($optionsResolver);
 
         $optionsResolver->expects($this->once())
             ->method('resolve')
             ->with($givenOptions)
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $factory = $this->getMockFormFactory();
         $builder = $this->resolvedType->createBuilder($factory, 'name', $givenOptions);
@@ -164,12 +164,12 @@ public function testCreateBuilderWithDataClassOption()
 
         $this->resolvedType->expects($this->once())
             ->method('getOptionsResolver')
-            ->will($this->returnValue($optionsResolver));
+            ->willReturn($optionsResolver);
 
         $optionsResolver->expects($this->once())
             ->method('resolve')
             ->with($givenOptions)
-            ->will($this->returnValue($resolvedOptions));
+            ->willReturn($resolvedOptions);
 
         $factory = $this->getMockFormFactory();
         $builder = $this->resolvedType->createBuilder($factory, 'name', $givenOptions);
@@ -198,24 +198,24 @@ public function testBuildForm()
         $this->parentType->expects($this->once())
             ->method('buildForm')
             ->with($builder, $options)
-            ->will($this->returnCallback($assertIndex(0)));
+            ->willReturnCallback($assertIndex(0));
 
         // Then the type itself
         $this->type->expects($this->once())
             ->method('buildForm')
             ->with($builder, $options)
-            ->will($this->returnCallback($assertIndex(1)));
+            ->willReturnCallback($assertIndex(1));
 
         // Then its extensions
         $this->extension1->expects($this->once())
             ->method('buildForm')
             ->with($builder, $options)
-            ->will($this->returnCallback($assertIndex(2)));
+            ->willReturnCallback($assertIndex(2));
 
         $this->extension2->expects($this->once())
             ->method('buildForm')
             ->with($builder, $options)
-            ->will($this->returnCallback($assertIndex(3)));
+            ->willReturnCallback($assertIndex(3));
 
         $this->resolvedType->buildForm($builder, $options);
     }
@@ -261,24 +261,24 @@ public function testBuildView()
         $this->parentType->expects($this->once())
             ->method('buildView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(0)));
+            ->willReturnCallback($assertIndex(0));
 
         // Then the type itself
         $this->type->expects($this->once())
             ->method('buildView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(1)));
+            ->willReturnCallback($assertIndex(1));
 
         // Then its extensions
         $this->extension1->expects($this->once())
             ->method('buildView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(2)));
+            ->willReturnCallback($assertIndex(2));
 
         $this->extension2->expects($this->once())
             ->method('buildView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(3)));
+            ->willReturnCallback($assertIndex(3));
 
         $this->resolvedType->buildView($view, $form, $options);
     }
@@ -303,24 +303,24 @@ public function testFinishView()
         $this->parentType->expects($this->once())
             ->method('finishView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(0)));
+            ->willReturnCallback($assertIndex(0));
 
         // Then the type itself
         $this->type->expects($this->once())
             ->method('finishView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(1)));
+            ->willReturnCallback($assertIndex(1));
 
         // Then its extensions
         $this->extension1->expects($this->once())
             ->method('finishView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(2)));
+            ->willReturnCallback($assertIndex(2));
 
         $this->extension2->expects($this->once())
             ->method('finishView')
             ->with($view, $form, $options)
-            ->will($this->returnCallback($assertIndex(3)));
+            ->willReturnCallback($assertIndex(3));
 
         $this->resolvedType->finishView($view, $form, $options);
     }
diff --git a/src/Symfony/Component/Form/Tests/SimpleFormTest.php b/src/Symfony/Component/Form/Tests/SimpleFormTest.php
index 32c21c8432b7a..f88902dc8ced6 100644
--- a/src/Symfony/Component/Form/Tests/SimpleFormTest.php
+++ b/src/Symfony/Component/Form/Tests/SimpleFormTest.php
@@ -731,7 +731,7 @@ public function testCreateView()
         $type->expects($this->once())
             ->method('createView')
             ->with($form)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $form->createView());
     }
@@ -748,12 +748,12 @@ public function testCreateViewWithParent()
 
         $parentType->expects($this->once())
             ->method('createView')
-            ->will($this->returnValue($parentView));
+            ->willReturn($parentView);
 
         $type->expects($this->once())
             ->method('createView')
             ->with($form, $parentView)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $form->createView());
     }
@@ -768,7 +768,7 @@ public function testCreateViewWithExplicitParent()
         $type->expects($this->once())
             ->method('createView')
             ->with($form, $parentView)
-            ->will($this->returnValue($view));
+            ->willReturn($view);
 
         $this->assertSame($view, $form->createView($parentView));
     }
diff --git a/src/Symfony/Component/HttpFoundation/Tests/File/FileTest.php b/src/Symfony/Component/HttpFoundation/Tests/File/FileTest.php
index fb82dae768b4f..caf2029927008 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/File/FileTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/File/FileTest.php
@@ -172,7 +172,7 @@ protected function createMockGuesser($path, $mimeType)
             ->expects($this->once())
             ->method('guess')
             ->with($this->equalTo($path))
-            ->will($this->returnValue($mimeType))
+            ->willReturn($mimeType)
         ;
 
         return $guesser;
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcacheSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcacheSessionHandlerTest.php
index 68daa4e5cb595..d7a324fc205bc 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcacheSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcacheSessionHandlerTest.php
@@ -79,7 +79,7 @@ public function testWriteSession()
             ->expects($this->once())
             ->method('set')
             ->with(self::PREFIX.'id', 'data', 0, $this->equalTo(time() + self::TTL, 2))
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($this->storage->write('id', 'data'));
@@ -91,7 +91,7 @@ public function testDestroySession()
             ->expects($this->once())
             ->method('delete')
             ->with(self::PREFIX.'id')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($this->storage->destroy('id'));
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcachedSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcachedSessionHandlerTest.php
index 813337349f225..c3deb7aed8fb5 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcachedSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MemcachedSessionHandlerTest.php
@@ -66,7 +66,7 @@ public function testCloseSession()
         $this->memcached
             ->expects($this->once())
             ->method('quit')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($this->storage->close());
@@ -89,7 +89,7 @@ public function testWriteSession()
             ->expects($this->once())
             ->method('set')
             ->with(self::PREFIX.'id', 'data', $this->equalTo(time() + self::TTL, 2))
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($this->storage->write('id', 'data'));
@@ -101,7 +101,7 @@ public function testDestroySession()
             ->expects($this->once())
             ->method('delete')
             ->with(self::PREFIX.'id')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($this->storage->destroy('id'));
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php
index 6f2742ca70e53..5ce6a9e5a6641 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php
@@ -95,7 +95,7 @@ public function testRead()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         // defining the timeout before the actual method call
         // allows to test for "greater than" values in the $criteria
@@ -103,7 +103,7 @@ public function testRead()
 
         $collection->expects($this->once())
             ->method('findOne')
-            ->will($this->returnCallback(function ($criteria) use ($testTimeout) {
+            ->willReturnCallback(function ($criteria) use ($testTimeout) {
                 $this->assertArrayHasKey($this->options['id_field'], $criteria);
                 $this->assertEquals($criteria[$this->options['id_field']], 'foo');
 
@@ -131,7 +131,7 @@ public function testRead()
                 }
 
                 return $fields;
-            }));
+            });
 
         $this->assertEquals('bar', $this->storage->read('foo'));
     }
@@ -143,7 +143,7 @@ public function testWrite()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         $data = [];
 
@@ -151,7 +151,7 @@ public function testWrite()
 
         $collection->expects($this->once())
             ->method($methodName)
-            ->will($this->returnCallback(function ($criteria, $updateData, $options) use (&$data) {
+            ->willReturnCallback(function ($criteria, $updateData, $options) use (&$data) {
                 $this->assertEquals([$this->options['id_field'] => 'foo'], $criteria);
 
                 if (phpversion('mongodb')) {
@@ -161,7 +161,7 @@ public function testWrite()
                 }
 
                 $data = $updateData['$set'];
-            }));
+            });
 
         $expectedExpiry = time() + (int) ini_get('session.gc_maxlifetime');
         $this->assertTrue($this->storage->write('foo', 'bar'));
@@ -197,7 +197,7 @@ public function testWriteWhenUsingExpiresField()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         $data = [];
 
@@ -205,7 +205,7 @@ public function testWriteWhenUsingExpiresField()
 
         $collection->expects($this->once())
             ->method($methodName)
-            ->will($this->returnCallback(function ($criteria, $updateData, $options) use (&$data) {
+            ->willReturnCallback(function ($criteria, $updateData, $options) use (&$data) {
                 $this->assertEquals([$this->options['id_field'] => 'foo'], $criteria);
 
                 if (phpversion('mongodb')) {
@@ -215,7 +215,7 @@ public function testWriteWhenUsingExpiresField()
                 }
 
                 $data = $updateData['$set'];
-            }));
+            });
 
         $this->assertTrue($this->storage->write('foo', 'bar'));
 
@@ -237,7 +237,7 @@ public function testReplaceSessionData()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         $data = [];
 
@@ -245,9 +245,9 @@ public function testReplaceSessionData()
 
         $collection->expects($this->exactly(2))
             ->method($methodName)
-            ->will($this->returnCallback(function ($criteria, $updateData, $options) use (&$data) {
+            ->willReturnCallback(function ($criteria, $updateData, $options) use (&$data) {
                 $data = $updateData;
-            }));
+            });
 
         $this->storage->write('foo', 'bar');
         $this->storage->write('foo', 'foobar');
@@ -266,7 +266,7 @@ public function testDestroy()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         $methodName = phpversion('mongodb') ? 'deleteOne' : 'remove';
 
@@ -284,13 +284,13 @@ public function testGc()
         $this->mongo->expects($this->once())
             ->method('selectCollection')
             ->with($this->options['database'], $this->options['collection'])
-            ->will($this->returnValue($collection));
+            ->willReturn($collection);
 
         $methodName = phpversion('mongodb') ? 'deleteMany' : 'remove';
 
         $collection->expects($this->once())
             ->method($methodName)
-            ->will($this->returnCallback(function ($criteria) {
+            ->willReturnCallback(function ($criteria) {
                 if (phpversion('mongodb')) {
                     $this->assertInstanceOf('MongoDB\BSON\UTCDateTime', $criteria[$this->options['expiry_field']]['$lt']);
                     $this->assertGreaterThanOrEqual(time() - 1, round((string) $criteria[$this->options['expiry_field']]['$lt'] / 1000));
@@ -298,7 +298,7 @@ public function testGc()
                     $this->assertInstanceOf('MongoDate', $criteria[$this->options['expiry_field']]['$lt']);
                     $this->assertGreaterThanOrEqual(time() - 1, $criteria[$this->options['expiry_field']]['$lt']->sec);
                 }
-            }));
+            });
 
         $this->assertTrue($this->storage->gc(1));
     }
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php
index 901078478b4db..f0914eb43d080 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php
@@ -147,7 +147,7 @@ public function testReadConvertsStreamToString()
         $stream = $this->createStream($content);
 
         $pdo->prepareResult->expects($this->once())->method('fetchAll')
-            ->will($this->returnValue([[$stream, 42, time()]]));
+            ->willReturn([[$stream, 42, time()]]);
 
         $storage = new PdoSessionHandler($pdo);
         $result = $storage->read('foo');
@@ -177,14 +177,14 @@ public function testReadLockedConvertsStreamToString()
         $exception = null;
 
         $selectStmt->expects($this->atLeast(2))->method('fetchAll')
-            ->will($this->returnCallback(function () use (&$exception, $stream) {
+            ->willReturnCallback(function () use (&$exception, $stream) {
                 return $exception ? [[$stream, 42, time()]] : [];
-            }));
+            });
 
         $insertStmt->expects($this->once())->method('execute')
-            ->will($this->returnCallback(function () use (&$exception) {
+            ->willReturnCallback(function () use (&$exception) {
                 throw $exception = new \PDOException('', '23');
-            }));
+            });
 
         $storage = new PdoSessionHandler($pdo);
         $result = $storage->read('foo');
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/WriteCheckSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/WriteCheckSessionHandlerTest.php
index 898a7d11a5ae2..b89454f87f4e7 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/WriteCheckSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/WriteCheckSessionHandlerTest.php
@@ -30,7 +30,7 @@ public function test()
             ->expects($this->once())
             ->method('close')
             ->with()
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($writeCheckSessionHandler->close());
@@ -45,7 +45,7 @@ public function testWrite()
             ->expects($this->once())
             ->method('write')
             ->with('foo', 'bar')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertTrue($writeCheckSessionHandler->write('foo', 'bar'));
@@ -60,7 +60,7 @@ public function testSkippedWrite()
             ->expects($this->once())
             ->method('read')
             ->with('foo')
-            ->will($this->returnValue('bar'))
+            ->willReturn('bar')
         ;
 
         $wrappedSessionHandlerMock
@@ -81,14 +81,14 @@ public function testNonSkippedWrite()
             ->expects($this->once())
             ->method('read')
             ->with('foo')
-            ->will($this->returnValue('bar'))
+            ->willReturn('bar')
         ;
 
         $wrappedSessionHandlerMock
             ->expects($this->once())
             ->method('write')
             ->with('foo', 'baZZZ')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $this->assertEquals('bar', $writeCheckSessionHandler->read('foo'));
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Proxy/SessionHandlerProxyTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Proxy/SessionHandlerProxyTest.php
index 0459a8ce97d50..b6e0da99ddd67 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Proxy/SessionHandlerProxyTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Proxy/SessionHandlerProxyTest.php
@@ -50,7 +50,7 @@ public function testOpenTrue()
     {
         $this->mock->expects($this->once())
             ->method('open')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->assertFalse($this->proxy->isActive());
         $this->proxy->open('name', 'id');
@@ -61,7 +61,7 @@ public function testOpenFalse()
     {
         $this->mock->expects($this->once())
             ->method('open')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->assertFalse($this->proxy->isActive());
         $this->proxy->open('name', 'id');
@@ -72,7 +72,7 @@ public function testClose()
     {
         $this->mock->expects($this->once())
             ->method('close')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->assertFalse($this->proxy->isActive());
         $this->proxy->close();
@@ -83,7 +83,7 @@ public function testCloseFalse()
     {
         $this->mock->expects($this->once())
             ->method('close')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->assertFalse($this->proxy->isActive());
         $this->proxy->close();
diff --git a/src/Symfony/Component/HttpKernel/Tests/CacheWarmer/CacheWarmerAggregateTest.php b/src/Symfony/Component/HttpKernel/Tests/CacheWarmer/CacheWarmerAggregateTest.php
index de15c6f30ce0b..41fe28507c8f9 100644
--- a/src/Symfony/Component/HttpKernel/Tests/CacheWarmer/CacheWarmerAggregateTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/CacheWarmer/CacheWarmerAggregateTest.php
@@ -87,7 +87,7 @@ public function testWarmupDoesNotCallWarmupOnOptionalWarmersWhenEnableOptionalWa
         $warmer
             ->expects($this->once())
             ->method('isOptional')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $warmer
             ->expects($this->never())
             ->method('warmUp');
diff --git a/src/Symfony/Component/HttpKernel/Tests/ClientTest.php b/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
index ac1c55ad54d35..86a51ce7651a2 100644
--- a/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
@@ -157,7 +157,7 @@ public function testUploadedFileWhenSizeExceedsUploadMaxFileSize()
 
         $file->expects($this->once())
             ->method('getSize')
-            ->will($this->returnValue(INF))
+            ->willReturn(INF)
         ;
 
         $client->request('POST', '/', [], [$file]);
diff --git a/src/Symfony/Component/HttpKernel/Tests/Config/FileLocatorTest.php b/src/Symfony/Component/HttpKernel/Tests/Config/FileLocatorTest.php
index 6265f0275560a..b20b12ab59ed6 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Config/FileLocatorTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Config/FileLocatorTest.php
@@ -23,7 +23,7 @@ public function testLocate()
             ->expects($this->atLeastOnce())
             ->method('locateResource')
             ->with('@BundleName/some/path', null, true)
-            ->will($this->returnValue('/bundle-name/some/path'));
+            ->willReturn('/bundle-name/some/path');
         $locator = new FileLocator($kernel);
         $this->assertEquals('/bundle-name/some/path', $locator->locate('@BundleName/some/path'));
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/Controller/ContainerControllerResolverTest.php b/src/Symfony/Component/HttpKernel/Tests/Controller/ContainerControllerResolverTest.php
index 3f130db06500a..098b89f9e1255 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Controller/ContainerControllerResolverTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Controller/ContainerControllerResolverTest.php
@@ -26,11 +26,11 @@ public function testGetControllerService()
         $container->expects($this->once())
             ->method('has')
             ->with('foo')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $container->expects($this->once())
             ->method('get')
             ->with('foo')
-            ->will($this->returnValue($this))
+            ->willReturn($this)
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -51,12 +51,12 @@ public function testGetControllerInvokableService()
         $container->expects($this->once())
             ->method('has')
             ->with('foo')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $container->expects($this->once())
             ->method('get')
             ->with('foo')
-            ->will($this->returnValue($invokableController))
+            ->willReturn($invokableController)
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -77,12 +77,12 @@ public function testGetControllerInvokableServiceWithClassNameAsName()
         $container->expects($this->once())
             ->method('has')
             ->with($className)
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $container->expects($this->once())
             ->method('get')
             ->with($className)
-            ->will($this->returnValue($invokableController))
+            ->willReturn($invokableController)
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -100,7 +100,7 @@ public function testNonInstantiableController()
         $container->expects($this->once())
             ->method('has')
             ->with(NonInstantiableController::class)
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -122,19 +122,19 @@ public function testNonConstructController()
         $container->expects($this->at(0))
             ->method('has')
             ->with(ImpossibleConstructController::class)
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $container->expects($this->at(1))
             ->method('has')
             ->with(ImpossibleConstructController::class)
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $container->expects($this->atLeastOnce())
             ->method('getRemovedIds')
             ->with()
-            ->will($this->returnValue([ImpossibleConstructController::class => true]))
+            ->willReturn([ImpossibleConstructController::class => true])
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -162,12 +162,12 @@ public function testNonInstantiableControllerWithCorrespondingService()
         $container->expects($this->atLeastOnce())
             ->method('has')
             ->with(NonInstantiableController::class)
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $container->expects($this->atLeastOnce())
             ->method('get')
             ->with(NonInstantiableController::class)
-            ->will($this->returnValue($service))
+            ->willReturn($service)
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -189,13 +189,13 @@ public function testExceptionWhenUsingRemovedControllerService()
         $container->expects($this->at(0))
             ->method('has')
             ->with('app.my_controller')
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $container->expects($this->atLeastOnce())
             ->method('getRemovedIds')
             ->with()
-            ->will($this->returnValue(['app.my_controller' => true]))
+            ->willReturn(['app.my_controller' => true])
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
@@ -215,12 +215,12 @@ public function testExceptionWhenUsingControllerWithoutAnInvokeMethod()
         $container->expects($this->once())
             ->method('has')
             ->with('app.my_controller')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $container->expects($this->once())
             ->method('get')
             ->with('app.my_controller')
-            ->will($this->returnValue(new ImpossibleConstructController('toto', 'controller')))
+            ->willReturn(new ImpossibleConstructController('toto', 'controller'))
         ;
 
         $resolver = $this->createControllerResolver(null, $container);
diff --git a/src/Symfony/Component/HttpKernel/Tests/Controller/ControllerResolverTest.php b/src/Symfony/Component/HttpKernel/Tests/Controller/ControllerResolverTest.php
index 728382ad2b1ec..6a28eab26bb52 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Controller/ControllerResolverTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Controller/ControllerResolverTest.php
@@ -226,7 +226,7 @@ public function testGetVariadicArguments()
     public function testCreateControllerCanReturnAnyCallable()
     {
         $mock = $this->getMockBuilder('Symfony\Component\HttpKernel\Controller\ControllerResolver')->setMethods(['createController'])->getMock();
-        $mock->expects($this->once())->method('createController')->will($this->returnValue('Symfony\Component\HttpKernel\Tests\Controller\some_controller_function'));
+        $mock->expects($this->once())->method('createController')->willReturn('Symfony\Component\HttpKernel\Tests\Controller\some_controller_function');
 
         $request = Request::create('/');
         $request->attributes->set('_controller', 'foobar');
diff --git a/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php b/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
index 90151ae44afdf..ace4628e09f93 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
@@ -23,8 +23,8 @@ public function testCollectWithUnexpectedFormat()
             ->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')
             ->setMethods(['countErrors', 'getLogs', 'clear'])
             ->getMock();
-        $logger->expects($this->once())->method('countErrors')->will($this->returnValue('foo'));
-        $logger->expects($this->exactly(2))->method('getLogs')->will($this->returnValue([]));
+        $logger->expects($this->once())->method('countErrors')->willReturn('foo');
+        $logger->expects($this->exactly(2))->method('getLogs')->willReturn([]);
 
         $c = new LoggerDataCollector($logger, __DIR__.'/');
         $c->lateCollect();
@@ -50,8 +50,8 @@ public function testCollect($nb, $logs, $expectedLogs, $expectedDeprecationCount
             ->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')
             ->setMethods(['countErrors', 'getLogs', 'clear'])
             ->getMock();
-        $logger->expects($this->once())->method('countErrors')->will($this->returnValue($nb));
-        $logger->expects($this->exactly(2))->method('getLogs')->will($this->returnValue($logs));
+        $logger->expects($this->once())->method('countErrors')->willReturn($nb);
+        $logger->expects($this->exactly(2))->method('getLogs')->willReturn($logs);
 
         $c = new LoggerDataCollector($logger);
         $c->lateCollect();
diff --git a/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php b/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
index 793fbd319f94d..6756f3de42647 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
@@ -44,7 +44,7 @@ public function testCollect()
         $this->assertEquals(0, $c->getStartTime());
 
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\KernelInterface')->getMock();
-        $kernel->expects($this->once())->method('getStartTime')->will($this->returnValue(123456));
+        $kernel->expects($this->once())->method('getStartTime')->willReturn(123456);
 
         $c = new TimeDataCollector($kernel);
         $request = new Request();
diff --git a/src/Symfony/Component/HttpKernel/Tests/Debug/TraceableEventDispatcherTest.php b/src/Symfony/Component/HttpKernel/Tests/Debug/TraceableEventDispatcherTest.php
index 8b8e91aeb474d..60ad1b89c4dfb 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Debug/TraceableEventDispatcherTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Debug/TraceableEventDispatcherTest.php
@@ -49,7 +49,7 @@ public function testStopwatchCheckControllerOnRequestEvent()
             ->getMock();
         $stopwatch->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $dispatcher = new TraceableEventDispatcher(new EventDispatcher(), $stopwatch);
 
@@ -65,7 +65,7 @@ public function testStopwatchStopControllerOnRequestEvent()
             ->getMock();
         $stopwatch->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $stopwatch->expects($this->once())
             ->method('stop');
         $stopwatch->expects($this->once())
@@ -112,9 +112,9 @@ public function testListenerCanRemoveItselfWhenExecuted()
     protected function getHttpKernel($dispatcher, $controller)
     {
         $controllerResolver = $this->getMockBuilder('Symfony\Component\HttpKernel\Controller\ControllerResolverInterface')->getMock();
-        $controllerResolver->expects($this->once())->method('getController')->will($this->returnValue($controller));
+        $controllerResolver->expects($this->once())->method('getController')->willReturn($controller);
         $argumentResolver = $this->getMockBuilder('Symfony\Component\HttpKernel\Controller\ArgumentResolverInterface')->getMock();
-        $argumentResolver->expects($this->once())->method('getArguments')->will($this->returnValue([]));
+        $argumentResolver->expects($this->once())->method('getArguments')->willReturn([]);
 
         return new HttpKernel($dispatcher, $controllerResolver, new RequestStack(), $argumentResolver);
     }
diff --git a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/LazyLoadingFragmentHandlerTest.php b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/LazyLoadingFragmentHandlerTest.php
index 95baaa54c133c..953dc65cdf735 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/LazyLoadingFragmentHandlerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/LazyLoadingFragmentHandlerTest.php
@@ -25,14 +25,14 @@ class LazyLoadingFragmentHandlerTest extends TestCase
     public function testRenderWithLegacyMapping()
     {
         $renderer = $this->getMockBuilder('Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface')->getMock();
-        $renderer->expects($this->once())->method('getName')->will($this->returnValue('foo'));
-        $renderer->expects($this->any())->method('render')->will($this->returnValue(new Response()));
+        $renderer->expects($this->once())->method('getName')->willReturn('foo');
+        $renderer->expects($this->any())->method('render')->willReturn(new Response());
 
         $requestStack = $this->getMockBuilder('Symfony\Component\HttpFoundation\RequestStack')->getMock();
-        $requestStack->expects($this->any())->method('getCurrentRequest')->will($this->returnValue(Request::create('/')));
+        $requestStack->expects($this->any())->method('getCurrentRequest')->willReturn(Request::create('/'));
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
-        $container->expects($this->once())->method('get')->will($this->returnValue($renderer));
+        $container->expects($this->once())->method('get')->willReturn($renderer);
 
         $handler = new LazyLoadingFragmentHandler($container, $requestStack, false);
         $handler->addRendererService('foo', 'foo');
@@ -46,15 +46,15 @@ public function testRenderWithLegacyMapping()
     public function testRender()
     {
         $renderer = $this->getMockBuilder('Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface')->getMock();
-        $renderer->expects($this->once())->method('getName')->will($this->returnValue('foo'));
-        $renderer->expects($this->any())->method('render')->will($this->returnValue(new Response()));
+        $renderer->expects($this->once())->method('getName')->willReturn('foo');
+        $renderer->expects($this->any())->method('render')->willReturn(new Response());
 
         $requestStack = $this->getMockBuilder('Symfony\Component\HttpFoundation\RequestStack')->getMock();
-        $requestStack->expects($this->any())->method('getCurrentRequest')->will($this->returnValue(Request::create('/')));
+        $requestStack->expects($this->any())->method('getCurrentRequest')->willReturn(Request::create('/'));
 
         $container = $this->getMockBuilder('Psr\Container\ContainerInterface')->getMock();
         $container->expects($this->once())->method('has')->with('foo')->willReturn(true);
-        $container->expects($this->once())->method('get')->will($this->returnValue($renderer));
+        $container->expects($this->once())->method('get')->willReturn($renderer);
 
         $handler = new LazyLoadingFragmentHandler($container, $requestStack, false);
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/AddRequestFormatsListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/AddRequestFormatsListenerTest.php
index b4ea2f955bb53..4ab0a8fb1ea62 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/AddRequestFormatsListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/AddRequestFormatsListenerTest.php
@@ -77,7 +77,7 @@ protected function getGetResponseEventMock(Request $request)
 
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request));
+            ->willReturn($request);
 
         return $event;
     }
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/DebugHandlersListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/DebugHandlersListenerTest.php
index d9e261d35af5e..44af0149f738f 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/DebugHandlersListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/DebugHandlersListenerTest.php
@@ -94,7 +94,7 @@ public function testConsoleEvent()
         $dispatcher = new EventDispatcher();
         $listener = new DebugHandlersListener(null);
         $app = $this->getMockBuilder('Symfony\Component\Console\Application')->getMock();
-        $app->expects($this->once())->method('getHelperSet')->will($this->returnValue(new HelperSet()));
+        $app->expects($this->once())->method('getHelperSet')->willReturn(new HelperSet());
         $command = new Command(__FUNCTION__);
         $command->setApplication($app);
         $event = new ConsoleEvent($command, new ArgvInput(), new ConsoleOutput());
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
index c4e8cd505cbff..fca60f1927a27 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
@@ -112,9 +112,9 @@ public function testSubRequestFormat()
         $listener = new ExceptionListener('foo', $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock());
 
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
-        $kernel->expects($this->once())->method('handle')->will($this->returnCallback(function (Request $request) {
+        $kernel->expects($this->once())->method('handle')->willReturnCallback(function (Request $request) {
             return new Response($request->getRequestFormat());
-        }));
+        });
 
         $request = Request::create('/');
         $request->setRequestFormat('xml');
@@ -130,9 +130,9 @@ public function testCSPHeaderIsRemoved()
     {
         $dispatcher = new EventDispatcher();
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
-        $kernel->expects($this->once())->method('handle')->will($this->returnCallback(function (Request $request) {
+        $kernel->expects($this->once())->method('handle')->willReturnCallback(function (Request $request) {
             return new Response($request->getRequestFormat());
-        }));
+        });
 
         $listener = new ExceptionListener('foo', $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock(), true);
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php
index 1cf4b72c69d78..5f96f7f7c660b 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php
@@ -55,7 +55,7 @@ public function testLocaleSetForRoutingContext()
         $context->expects($this->once())->method('setParameter')->with('_locale', 'es');
 
         $router = $this->getMockBuilder('Symfony\Component\Routing\Router')->setMethods(['getContext'])->disableOriginalConstructor()->getMock();
-        $router->expects($this->once())->method('getContext')->will($this->returnValue($context));
+        $router->expects($this->once())->method('getContext')->willReturn($context);
 
         $request = Request::create('/');
 
@@ -71,12 +71,12 @@ public function testRouterResetWithParentRequestOnKernelFinishRequest()
         $context->expects($this->once())->method('setParameter')->with('_locale', 'es');
 
         $router = $this->getMockBuilder('Symfony\Component\Routing\Router')->setMethods(['getContext'])->disableOriginalConstructor()->getMock();
-        $router->expects($this->once())->method('getContext')->will($this->returnValue($context));
+        $router->expects($this->once())->method('getContext')->willReturn($context);
 
         $parentRequest = Request::create('/');
         $parentRequest->setLocale('es');
 
-        $this->requestStack->expects($this->once())->method('getParentRequest')->will($this->returnValue($parentRequest));
+        $this->requestStack->expects($this->once())->method('getParentRequest')->willReturn($parentRequest);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\FinishRequestEvent')->disableOriginalConstructor()->getMock();
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/ProfilerListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/ProfilerListenerTest.php
index 392aa2fc35816..7808578882fcd 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/ProfilerListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/ProfilerListenerTest.php
@@ -36,7 +36,7 @@ public function testKernelTerminate()
 
         $profiler->expects($this->once())
             ->method('collect')
-            ->will($this->returnValue($profile));
+            ->willReturn($profile);
 
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
index 218af8d36e293..33f6ab9594a96 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
@@ -49,7 +49,7 @@ public function testPort($defaultHttpPort, $defaultHttpsPort, $uri, $expectedHtt
         $context->setHttpsPort($defaultHttpsPort);
         $urlMatcher->expects($this->any())
             ->method('getContext')
-            ->will($this->returnValue($context));
+            ->willReturn($context);
 
         $listener = new RouterListener($urlMatcher, $this->requestStack);
         $event = $this->createGetResponseEventForUri($uri);
@@ -102,7 +102,7 @@ public function testRequestMatcher()
         $requestMatcher->expects($this->once())
                        ->method('matchRequest')
                        ->with($this->isInstanceOf('Symfony\Component\HttpFoundation\Request'))
-                       ->will($this->returnValue([]));
+                       ->willReturn([]);
 
         $listener = new RouterListener($requestMatcher, $this->requestStack, new RequestContext());
         $listener->onKernelRequest($event);
@@ -118,7 +118,7 @@ public function testSubRequestWithDifferentMethod()
         $requestMatcher->expects($this->any())
                        ->method('matchRequest')
                        ->with($this->isInstanceOf('Symfony\Component\HttpFoundation\Request'))
-                       ->will($this->returnValue([]));
+                       ->willReturn([]);
 
         $context = new RequestContext();
 
@@ -143,7 +143,7 @@ public function testLoggingParameter($parameter, $log, $parameters)
         $requestMatcher = $this->getMockBuilder('Symfony\Component\Routing\Matcher\RequestMatcherInterface')->getMock();
         $requestMatcher->expects($this->once())
             ->method('matchRequest')
-            ->will($this->returnValue($parameter));
+            ->willReturn($parameter);
 
         $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
         $logger->expects($this->once())
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/TestSessionListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/TestSessionListenerTest.php
index f261f2ed15a66..7187c7d1f6251 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/TestSessionListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/TestSessionListenerTest.php
@@ -47,7 +47,7 @@ protected function setUp()
         $this->session = $this->getSession();
         $this->listener->expects($this->any())
              ->method('getSession')
-             ->will($this->returnValue($this->session));
+             ->willReturn($this->session);
     }
 
     public function testShouldSaveMasterRequestSession()
@@ -183,28 +183,28 @@ private function sessionHasBeenStarted()
     {
         $this->session->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
     }
 
     private function sessionHasNotBeenStarted()
     {
         $this->session->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
     }
 
     private function sessionIsEmpty()
     {
         $this->session->expects($this->once())
             ->method('isEmpty')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
     }
 
     private function fixSessionId($sessionId)
     {
         $this->session->expects($this->any())
             ->method('getId')
-            ->will($this->returnValue($sessionId));
+            ->willReturn($sessionId);
     }
 
     private function getSession()
@@ -214,7 +214,7 @@ private function getSession()
             ->getMock();
 
         // set return value for getName()
-        $mock->expects($this->any())->method('getName')->will($this->returnValue('MOCKSESSID'));
+        $mock->expects($this->any())->method('getName')->willReturn('MOCKSESSID');
 
         return $mock;
     }
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/TranslatorListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/TranslatorListenerTest.php
index c1d56ec85d728..77c2c1c694529 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/TranslatorListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/TranslatorListenerTest.php
@@ -113,6 +113,6 @@ private function setMasterRequest($request)
         $this->requestStack
             ->expects($this->any())
             ->method('getParentRequest')
-            ->will($this->returnValue($request));
+            ->willReturn($request);
     }
 }
diff --git a/src/Symfony/Component/HttpKernel/Tests/Fragment/FragmentHandlerTest.php b/src/Symfony/Component/HttpKernel/Tests/Fragment/FragmentHandlerTest.php
index 8829393ea4e5c..06ce785ea6094 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Fragment/FragmentHandlerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Fragment/FragmentHandlerTest.php
@@ -32,7 +32,7 @@ protected function setUp()
         $this->requestStack
             ->expects($this->any())
             ->method('getCurrentRequest')
-            ->will($this->returnValue(Request::create('/')))
+            ->willReturn(Request::create('/'))
         ;
     }
 
@@ -79,7 +79,7 @@ protected function getHandler($returnValue, $arguments = [])
         $renderer
             ->expects($this->any())
             ->method('getName')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $e = $renderer
             ->expects($this->any())
diff --git a/src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php b/src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php
index 11adf74c2931c..b2a2dcaef6305 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php
@@ -64,9 +64,9 @@ public function testRenderWithObjectsAsAttributesPassedAsObjectsInTheControllerL
         $resolver
             ->expects($this->once())
             ->method('getController')
-            ->will($this->returnValue(function (\stdClass $object, Bar $object1) {
+            ->willReturn(function (\stdClass $object, Bar $object1) {
                 return new Response($object1->getBar());
-            }))
+            })
         ;
 
         $kernel = new HttpKernel(new EventDispatcher(), $resolver, new RequestStack());
@@ -85,9 +85,9 @@ public function testRenderWithObjectsAsAttributesPassedAsObjectsInTheController(
         $resolver
             ->expects($this->once())
             ->method('getController')
-            ->will($this->returnValue(function (\stdClass $object, Bar $object1) {
+            ->willReturn(function (\stdClass $object, Bar $object1) {
                 return new Response($object1->getBar());
-            }))
+            })
         ;
 
         $kernel = new HttpKernel(new EventDispatcher(), $resolver, new RequestStack(), new ArgumentResolver());
@@ -162,18 +162,18 @@ public function testExceptionInSubRequestsDoesNotMangleOutputBuffers()
         $controllerResolver
             ->expects($this->once())
             ->method('getController')
-            ->will($this->returnValue(function () {
+            ->willReturn(function () {
                 ob_start();
                 echo 'bar';
                 throw new \RuntimeException();
-            }))
+            })
         ;
 
         $argumentResolver = $this->getMockBuilder('Symfony\\Component\\HttpKernel\\Controller\\ArgumentResolverInterface')->getMock();
         $argumentResolver
             ->expects($this->once())
             ->method('getArguments')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $kernel = new HttpKernel(new EventDispatcher(), $controllerResolver, new RequestStack(), $argumentResolver);
diff --git a/src/Symfony/Component/HttpKernel/Tests/HttpCache/EsiTest.php b/src/Symfony/Component/HttpKernel/Tests/HttpCache/EsiTest.php
index ccc3eecfaf8c2..1fc8da8e24530 100644
--- a/src/Symfony/Component/HttpKernel/Tests/HttpCache/EsiTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/HttpCache/EsiTest.php
@@ -229,7 +229,7 @@ protected function getCache($request, $response)
         $cache = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpCache\HttpCache')->setMethods(['getRequest', 'handle'])->disableOriginalConstructor()->getMock();
         $cache->expects($this->any())
               ->method('getRequest')
-              ->will($this->returnValue($request))
+              ->willReturn($request)
         ;
         if (\is_array($response)) {
             $cache->expects($this->any())
@@ -239,7 +239,7 @@ protected function getCache($request, $response)
         } else {
             $cache->expects($this->any())
                   ->method('handle')
-                  ->will($this->returnValue($response))
+                  ->willReturn($response)
             ;
         }
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/HttpCache/SsiTest.php b/src/Symfony/Component/HttpKernel/Tests/HttpCache/SsiTest.php
index 2fc0bb9660dd1..79ed48cd00f7d 100644
--- a/src/Symfony/Component/HttpKernel/Tests/HttpCache/SsiTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/HttpCache/SsiTest.php
@@ -196,7 +196,7 @@ protected function getCache($request, $response)
         $cache = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpCache\HttpCache')->setMethods(['getRequest', 'handle'])->disableOriginalConstructor()->getMock();
         $cache->expects($this->any())
               ->method('getRequest')
-              ->will($this->returnValue($request))
+              ->willReturn($request)
         ;
         if (\is_array($response)) {
             $cache->expects($this->any())
@@ -206,7 +206,7 @@ protected function getCache($request, $response)
         } else {
             $cache->expects($this->any())
                   ->method('handle')
-                  ->will($this->returnValue($response))
+                  ->willReturn($response)
             ;
         }
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/HttpKernelTest.php b/src/Symfony/Component/HttpKernel/Tests/HttpKernelTest.php
index 939ecc0446359..01e32898e2971 100644
--- a/src/Symfony/Component/HttpKernel/Tests/HttpKernelTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/HttpKernelTest.php
@@ -363,13 +363,13 @@ private function getHttpKernel(EventDispatcherInterface $eventDispatcher, $contr
         $controllerResolver
             ->expects($this->any())
             ->method('getController')
-            ->will($this->returnValue($controller));
+            ->willReturn($controller);
 
         $argumentResolver = $this->getMockBuilder(ArgumentResolverInterface::class)->getMock();
         $argumentResolver
             ->expects($this->any())
             ->method('getArguments')
-            ->will($this->returnValue($arguments));
+            ->willReturn($arguments);
 
         return new HttpKernel($eventDispatcher, $controllerResolver, $requestStack, $argumentResolver);
     }
diff --git a/src/Symfony/Component/HttpKernel/Tests/KernelTest.php b/src/Symfony/Component/HttpKernel/Tests/KernelTest.php
index 208e11e182d65..04d74ae0a3199 100644
--- a/src/Symfony/Component/HttpKernel/Tests/KernelTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/KernelTest.php
@@ -110,7 +110,7 @@ public function testBootSetsTheContainerToTheBundles()
         $kernel = $this->getKernel(['initializeBundles', 'initializeContainer', 'getBundles']);
         $kernel->expects($this->once())
             ->method('getBundles')
-            ->will($this->returnValue([$bundle]));
+            ->willReturn([$bundle]);
 
         $kernel->boot();
     }
@@ -167,16 +167,16 @@ public function testEnvParametersResourceIsAdded()
             ->getMock();
         $kernel->expects($this->any())
             ->method('getContainerBuilder')
-            ->will($this->returnValue($container));
+            ->willReturn($container);
         $kernel->expects($this->any())
             ->method('prepareContainer')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
         $kernel->expects($this->any())
             ->method('getCacheDir')
-            ->will($this->returnValue(sys_get_temp_dir()));
+            ->willReturn(sys_get_temp_dir());
         $kernel->expects($this->any())
             ->method('getLogDir')
-            ->will($this->returnValue(sys_get_temp_dir()));
+            ->willReturn(sys_get_temp_dir());
 
         $reflection = new \ReflectionClass(\get_class($kernel));
         $method = $reflection->getMethod('buildContainer');
@@ -226,7 +226,7 @@ public function testShutdownGivesNullContainerToAllBundles()
         $kernel = $this->getKernel(['getBundles']);
         $kernel->expects($this->any())
             ->method('getBundles')
-            ->will($this->returnValue([$bundle]));
+            ->willReturn([$bundle]);
 
         $kernel->boot();
         $kernel->shutdown();
@@ -249,7 +249,7 @@ public function testHandleCallsHandleOnHttpKernel()
         $kernel = $this->getKernel(['getHttpKernel']);
         $kernel->expects($this->once())
             ->method('getHttpKernel')
-            ->will($this->returnValue($httpKernelMock));
+            ->willReturn($httpKernelMock);
 
         $kernel->handle($request, $type, $catch);
     }
@@ -267,7 +267,7 @@ public function testHandleBootsTheKernel()
         $kernel = $this->getKernel(['getHttpKernel', 'boot']);
         $kernel->expects($this->once())
             ->method('getHttpKernel')
-            ->will($this->returnValue($httpKernelMock));
+            ->willReturn($httpKernelMock);
 
         $kernel->expects($this->once())
             ->method('boot');
@@ -421,7 +421,7 @@ public function testLocateResourceThrowsExceptionWhenResourceDoesNotExist()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')])
         ;
 
         $kernel->locateResource('@Bundle1Bundle/config/routing.xml');
@@ -433,7 +433,7 @@ public function testLocateResourceReturnsTheFirstThatMatches()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')])
         ;
 
         $this->assertEquals(__DIR__.'/Fixtures/Bundle1Bundle/foo.txt', $kernel->locateResource('@Bundle1Bundle/foo.txt'));
@@ -451,7 +451,7 @@ public function testLocateResourceReturnsTheFirstThatMatchesWithParent()
         $kernel
             ->expects($this->exactly(2))
             ->method('getBundle')
-            ->will($this->returnValue([$child, $parent]))
+            ->willReturn([$child, $parent])
         ;
 
         $this->assertEquals(__DIR__.'/Fixtures/Bundle2Bundle/foo.txt', $kernel->locateResource('@ParentAABundle/foo.txt'));
@@ -470,7 +470,7 @@ public function testLocateResourceReturnsAllMatches()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$child, $parent]))
+            ->willReturn([$child, $parent])
         ;
 
         $this->assertEquals([
@@ -488,10 +488,10 @@ public function testLocateResourceReturnsAllMatchesBis()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([
+            ->willReturn([
                 $this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle'),
                 $this->getBundle(__DIR__.'/Foobar'),
-            ]))
+            ])
         ;
 
         $this->assertEquals(
@@ -506,7 +506,7 @@ public function testLocateResourceIgnoresDirOnNonResource()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle')])
         ;
 
         $this->assertEquals(
@@ -521,7 +521,7 @@ public function testLocateResourceReturnsTheDirOneForResources()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/FooBundle', null, null, 'FooBundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/FooBundle', null, null, 'FooBundle')])
         ;
 
         $this->assertEquals(
@@ -539,7 +539,7 @@ public function testLocateResourceReturnsTheDirOneForResourcesAndBundleOnes()
         $kernel
             ->expects($this->once())
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle', null, null, 'Bundle1Bundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle', null, null, 'Bundle1Bundle')])
         ;
 
         $this->assertEquals([
@@ -561,7 +561,7 @@ public function testLocateResourceOverrideBundleAndResourcesFolders()
         $kernel
             ->expects($this->exactly(4))
             ->method('getBundle')
-            ->will($this->returnValue([$child, $parent]))
+            ->willReturn([$child, $parent])
         ;
 
         $this->assertEquals([
@@ -596,7 +596,7 @@ public function testLocateResourceOnDirectories()
         $kernel
             ->expects($this->exactly(2))
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/FooBundle', null, null, 'FooBundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/FooBundle', null, null, 'FooBundle')])
         ;
 
         $this->assertEquals(
@@ -612,7 +612,7 @@ public function testLocateResourceOnDirectories()
         $kernel
             ->expects($this->exactly(2))
             ->method('getBundle')
-            ->will($this->returnValue([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle', null, null, 'Bundle1Bundle')]))
+            ->willReturn([$this->getBundle(__DIR__.'/Fixtures/Bundle1Bundle', null, null, 'Bundle1Bundle')])
         ;
 
         $this->assertEquals(
@@ -638,7 +638,7 @@ public function testInitializeBundles()
         $kernel
             ->expects($this->once())
             ->method('registerBundles')
-            ->will($this->returnValue([$parent, $child]))
+            ->willReturn([$parent, $child])
         ;
         $kernel->boot();
 
@@ -660,7 +660,7 @@ public function testInitializeBundlesSupportInheritanceCascade()
         $kernel
             ->expects($this->once())
             ->method('registerBundles')
-            ->will($this->returnValue([$grandparent, $parent, $child]))
+            ->willReturn([$grandparent, $parent, $child])
         ;
         $kernel->boot();
 
@@ -696,7 +696,7 @@ public function testInitializeBundlesSupportsArbitraryBundleRegistrationOrder()
         $kernel
             ->expects($this->once())
             ->method('registerBundles')
-            ->will($this->returnValue([$parent, $grandparent, $child]))
+            ->willReturn([$parent, $grandparent, $child])
         ;
         $kernel->boot();
 
@@ -785,7 +785,7 @@ public function testTerminateDelegatesTerminationOnlyForTerminableInterface()
         $kernel = $this->getKernel(['getHttpKernel']);
         $kernel->expects($this->exactly(2))
             ->method('getHttpKernel')
-            ->will($this->returnValue($httpKernelMock));
+            ->willReturn($httpKernelMock);
 
         $kernel->boot();
         $kernel->terminate(Request::create('/'), new Response());
@@ -938,19 +938,19 @@ protected function getBundle($dir = null, $parent = null, $className = null, $bu
         $bundle
             ->expects($this->any())
             ->method('getName')
-            ->will($this->returnValue(null === $bundleName ? \get_class($bundle) : $bundleName))
+            ->willReturn(null === $bundleName ? \get_class($bundle) : $bundleName)
         ;
 
         $bundle
             ->expects($this->any())
             ->method('getPath')
-            ->will($this->returnValue($dir))
+            ->willReturn($dir)
         ;
 
         $bundle
             ->expects($this->any())
             ->method('getParent')
-            ->will($this->returnValue($parent))
+            ->willReturn($parent)
         ;
 
         return $bundle;
@@ -976,7 +976,7 @@ protected function getKernel(array $methods = [], array $bundles = [])
         ;
         $kernel->expects($this->any())
             ->method('registerBundles')
-            ->will($this->returnValue($bundles))
+            ->willReturn($bundles)
         ;
         $p = new \ReflectionProperty($kernel, 'rootDir');
         $p->setAccessible(true);
diff --git a/src/Symfony/Component/HttpKernel/Tests/Log/LoggerTest.php b/src/Symfony/Component/HttpKernel/Tests/Log/LoggerTest.php
index 17865203f2c96..3a5a8ade54156 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Log/LoggerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Log/LoggerTest.php
@@ -149,7 +149,7 @@ public function testObjectCastToString()
         }
         $dummy->expects($this->atLeastOnce())
             ->method('__toString')
-            ->will($this->returnValue('DUMMY'));
+            ->willReturn('DUMMY');
 
         $this->logger->warning($dummy);
 
diff --git a/src/Symfony/Component/Intl/Tests/Data/Bundle/Reader/BundleEntryReaderTest.php b/src/Symfony/Component/Intl/Tests/Data/Bundle/Reader/BundleEntryReaderTest.php
index 766611ed027d6..3357b039ea814 100644
--- a/src/Symfony/Component/Intl/Tests/Data/Bundle/Reader/BundleEntryReaderTest.php
+++ b/src/Symfony/Component/Intl/Tests/Data/Bundle/Reader/BundleEntryReaderTest.php
@@ -72,7 +72,7 @@ public function testForwardCallToRead()
         $this->readerImpl->expects($this->once())
             ->method('read')
             ->with(self::RES_DIR, 'root')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->assertSame(self::$data, $this->reader->read(self::RES_DIR, 'root'));
     }
@@ -82,12 +82,12 @@ public function testReadEntireDataFileIfNoIndicesGiven()
         $this->readerImpl->expects($this->at(0))
             ->method('read')
             ->with(self::RES_DIR, 'en')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->readerImpl->expects($this->at(1))
             ->method('read')
             ->with(self::RES_DIR, 'root')
-            ->will($this->returnValue(self::$fallbackData));
+            ->willReturn(self::$fallbackData);
 
         $this->assertSame(self::$mergedData, $this->reader->readEntry(self::RES_DIR, 'en', []));
     }
@@ -97,7 +97,7 @@ public function testReadExistingEntry()
         $this->readerImpl->expects($this->once())
             ->method('read')
             ->with(self::RES_DIR, 'root')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->assertSame('Bar', $this->reader->readEntry(self::RES_DIR, 'root', ['Entries', 'Foo']));
     }
@@ -110,7 +110,7 @@ public function testReadNonExistingEntry()
         $this->readerImpl->expects($this->once())
             ->method('read')
             ->with(self::RES_DIR, 'root')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->reader->readEntry(self::RES_DIR, 'root', ['Entries', 'NonExisting']);
     }
@@ -120,12 +120,12 @@ public function testFallbackIfEntryDoesNotExist()
         $this->readerImpl->expects($this->at(0))
             ->method('read')
             ->with(self::RES_DIR, 'en_GB')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->readerImpl->expects($this->at(1))
             ->method('read')
             ->with(self::RES_DIR, 'en')
-            ->will($this->returnValue(self::$fallbackData));
+            ->willReturn(self::$fallbackData);
 
         $this->assertSame('Lah', $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Entries', 'Bam']));
     }
@@ -138,7 +138,7 @@ public function testDontFallbackIfEntryDoesNotExistAndFallbackDisabled()
         $this->readerImpl->expects($this->once())
             ->method('read')
             ->with(self::RES_DIR, 'en_GB')
-            ->will($this->returnValue(self::$data));
+            ->willReturn(self::$data);
 
         $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Entries', 'Bam'], false);
     }
@@ -153,7 +153,7 @@ public function testFallbackIfLocaleDoesNotExist()
         $this->readerImpl->expects($this->at(1))
             ->method('read')
             ->with(self::RES_DIR, 'en')
-            ->will($this->returnValue(self::$fallbackData));
+            ->willReturn(self::$fallbackData);
 
         $this->assertSame('Lah', $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Entries', 'Bam']));
     }
@@ -193,17 +193,17 @@ public function testMergeDataWithFallbackData($childData, $parentData, $result)
             $this->readerImpl->expects($this->at(0))
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue($childData));
+                ->willReturn($childData);
 
             $this->readerImpl->expects($this->at(1))
                 ->method('read')
                 ->with(self::RES_DIR, 'root')
-                ->will($this->returnValue($parentData));
+                ->willReturn($parentData);
         } else {
             $this->readerImpl->expects($this->once())
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue($childData));
+                ->willReturn($childData);
         }
 
         $this->assertSame($result, $this->reader->readEntry(self::RES_DIR, 'en', [], true));
@@ -217,7 +217,7 @@ public function testDontMergeDataIfFallbackDisabled($childData, $parentData, $re
         $this->readerImpl->expects($this->once())
             ->method('read')
             ->with(self::RES_DIR, 'en_GB')
-            ->will($this->returnValue($childData));
+            ->willReturn($childData);
 
         $this->assertSame($childData, $this->reader->readEntry(self::RES_DIR, 'en_GB', [], false));
     }
@@ -231,17 +231,17 @@ public function testMergeExistingEntryWithExistingFallbackEntry($childData, $par
             $this->readerImpl->expects($this->at(0))
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
 
             $this->readerImpl->expects($this->at(1))
                 ->method('read')
                 ->with(self::RES_DIR, 'root')
-                ->will($this->returnValue(['Foo' => ['Bar' => $parentData]]));
+                ->willReturn(['Foo' => ['Bar' => $parentData]]);
         } else {
             $this->readerImpl->expects($this->once())
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
         }
 
         $this->assertSame($result, $this->reader->readEntry(self::RES_DIR, 'en', ['Foo', 'Bar'], true));
@@ -255,12 +255,12 @@ public function testMergeNonExistingEntryWithExistingFallbackEntry($childData, $
         $this->readerImpl->expects($this->at(0))
             ->method('read')
             ->with(self::RES_DIR, 'en_GB')
-            ->will($this->returnValue(['Foo' => 'Baz']));
+            ->willReturn(['Foo' => 'Baz']);
 
         $this->readerImpl->expects($this->at(1))
             ->method('read')
             ->with(self::RES_DIR, 'en')
-            ->will($this->returnValue(['Foo' => ['Bar' => $parentData]]));
+            ->willReturn(['Foo' => ['Bar' => $parentData]]);
 
         $this->assertSame($parentData, $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Foo', 'Bar'], true));
     }
@@ -274,17 +274,17 @@ public function testMergeExistingEntryWithNonExistingFallbackEntry($childData, $
             $this->readerImpl->expects($this->at(0))
                 ->method('read')
                 ->with(self::RES_DIR, 'en_GB')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
 
             $this->readerImpl->expects($this->at(1))
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue(['Foo' => 'Bar']));
+                ->willReturn(['Foo' => 'Bar']);
         } else {
             $this->readerImpl->expects($this->once())
                 ->method('read')
                 ->with(self::RES_DIR, 'en_GB')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
         }
 
         $this->assertSame($childData, $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Foo', 'Bar'], true));
@@ -298,12 +298,12 @@ public function testFailIfEntryFoundNeitherInParentNorChild()
         $this->readerImpl->expects($this->at(0))
             ->method('read')
             ->with(self::RES_DIR, 'en_GB')
-            ->will($this->returnValue(['Foo' => 'Baz']));
+            ->willReturn(['Foo' => 'Baz']);
 
         $this->readerImpl->expects($this->at(1))
             ->method('read')
             ->with(self::RES_DIR, 'en')
-            ->will($this->returnValue(['Foo' => 'Bar']));
+            ->willReturn(['Foo' => 'Bar']);
 
         $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Foo', 'Bar'], true);
     }
@@ -320,17 +320,17 @@ public function testMergeTraversables($childData, $parentData, $result)
             $this->readerImpl->expects($this->at(0))
                 ->method('read')
                 ->with(self::RES_DIR, 'en_GB')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
 
             $this->readerImpl->expects($this->at(1))
                 ->method('read')
                 ->with(self::RES_DIR, 'en')
-                ->will($this->returnValue(['Foo' => ['Bar' => $parentData]]));
+                ->willReturn(['Foo' => ['Bar' => $parentData]]);
         } else {
             $this->readerImpl->expects($this->once())
                 ->method('read')
                 ->with(self::RES_DIR, 'en_GB')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
         }
 
         $this->assertSame($result, $this->reader->readEntry(self::RES_DIR, 'en_GB', ['Foo', 'Bar'], true));
@@ -347,18 +347,18 @@ public function testFollowLocaleAliases($childData, $parentData, $result)
             $this->readerImpl->expects($this->at(0))
                 ->method('read')
                 ->with(self::RES_DIR, 'ro_MD')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
 
             // Read fallback locale of aliased locale ("ro_MD" -> "ro")
             $this->readerImpl->expects($this->at(1))
                 ->method('read')
                 ->with(self::RES_DIR, 'ro')
-                ->will($this->returnValue(['Foo' => ['Bar' => $parentData]]));
+                ->willReturn(['Foo' => ['Bar' => $parentData]]);
         } else {
             $this->readerImpl->expects($this->once())
                 ->method('read')
                 ->with(self::RES_DIR, 'ro_MD')
-                ->will($this->returnValue(['Foo' => ['Bar' => $childData]]));
+                ->willReturn(['Foo' => ['Bar' => $childData]]);
         }
 
         $this->assertSame($result, $this->reader->readEntry(self::RES_DIR, 'mo', ['Foo', 'Bar'], true));
diff --git a/src/Symfony/Component/Ldap/Tests/LdapClientTest.php b/src/Symfony/Component/Ldap/Tests/LdapClientTest.php
index 63b3379d25e13..95373e92b14e7 100644
--- a/src/Symfony/Component/Ldap/Tests/LdapClientTest.php
+++ b/src/Symfony/Component/Ldap/Tests/LdapClientTest.php
@@ -70,7 +70,7 @@ public function testLdapFind()
         $collection
             ->expects($this->once())
             ->method('getIterator')
-            ->will($this->returnValue(new \ArrayIterator([
+            ->willReturn(new \ArrayIterator([
                 new Entry('cn=qux,dc=foo,dc=com', [
                     'cn' => ['qux'],
                     'dc' => ['com', 'foo'],
@@ -81,13 +81,13 @@ public function testLdapFind()
                     'dc' => ['com', 'foo'],
                     'givenName' => ['Baz'],
                 ]),
-            ])))
+            ]))
         ;
         $query = $this->getMockBuilder(QueryInterface::class)->getMock();
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($collection))
+            ->willReturn($collection)
         ;
         $this->ldap
             ->expects($this->once())
diff --git a/src/Symfony/Component/Ldap/Tests/LdapTest.php b/src/Symfony/Component/Ldap/Tests/LdapTest.php
index acc845222587a..0d6961c267ac1 100644
--- a/src/Symfony/Component/Ldap/Tests/LdapTest.php
+++ b/src/Symfony/Component/Ldap/Tests/LdapTest.php
@@ -42,7 +42,7 @@ public function testLdapBind()
         $this->adapter
             ->expects($this->once())
             ->method('getConnection')
-            ->will($this->returnValue($connection))
+            ->willReturn($connection)
         ;
         $this->ldap->bind('foo', 'bar');
     }
diff --git a/src/Symfony/Component/Process/Tests/ProcessFailedExceptionTest.php b/src/Symfony/Component/Process/Tests/ProcessFailedExceptionTest.php
index 4b0376ff4ef5f..ff0ea508e50f0 100644
--- a/src/Symfony/Component/Process/Tests/ProcessFailedExceptionTest.php
+++ b/src/Symfony/Component/Process/Tests/ProcessFailedExceptionTest.php
@@ -27,7 +27,7 @@ public function testProcessFailedExceptionThrowsException()
         $process = $this->getMockBuilder('Symfony\Component\Process\Process')->setMethods(['isSuccessful'])->setConstructorArgs(['php'])->getMock();
         $process->expects($this->once())
             ->method('isSuccessful')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         if (method_exists($this, 'expectException')) {
             $this->expectException(\InvalidArgumentException::class);
@@ -55,31 +55,31 @@ public function testProcessFailedExceptionPopulatesInformationFromProcessOutput(
         $process = $this->getMockBuilder('Symfony\Component\Process\Process')->setMethods(['isSuccessful', 'getOutput', 'getErrorOutput', 'getExitCode', 'getExitCodeText', 'isOutputDisabled', 'getWorkingDirectory'])->setConstructorArgs([$cmd])->getMock();
         $process->expects($this->once())
             ->method('isSuccessful')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $process->expects($this->once())
             ->method('getOutput')
-            ->will($this->returnValue($output));
+            ->willReturn($output);
 
         $process->expects($this->once())
             ->method('getErrorOutput')
-            ->will($this->returnValue($errorOutput));
+            ->willReturn($errorOutput);
 
         $process->expects($this->once())
             ->method('getExitCode')
-            ->will($this->returnValue($exitCode));
+            ->willReturn($exitCode);
 
         $process->expects($this->once())
             ->method('getExitCodeText')
-            ->will($this->returnValue($exitText));
+            ->willReturn($exitText);
 
         $process->expects($this->once())
             ->method('isOutputDisabled')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $process->expects($this->once())
             ->method('getWorkingDirectory')
-            ->will($this->returnValue($workingDirectory));
+            ->willReturn($workingDirectory);
 
         $exception = new ProcessFailedException($process);
 
@@ -103,7 +103,7 @@ public function testDisabledOutputInFailedExceptionDoesNotPopulateOutput()
         $process = $this->getMockBuilder('Symfony\Component\Process\Process')->setMethods(['isSuccessful', 'isOutputDisabled', 'getExitCode', 'getExitCodeText', 'getOutput', 'getErrorOutput', 'getWorkingDirectory'])->setConstructorArgs([$cmd])->getMock();
         $process->expects($this->once())
             ->method('isSuccessful')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $process->expects($this->never())
             ->method('getOutput');
@@ -113,19 +113,19 @@ public function testDisabledOutputInFailedExceptionDoesNotPopulateOutput()
 
         $process->expects($this->once())
             ->method('getExitCode')
-            ->will($this->returnValue($exitCode));
+            ->willReturn($exitCode);
 
         $process->expects($this->once())
             ->method('getExitCodeText')
-            ->will($this->returnValue($exitText));
+            ->willReturn($exitText);
 
         $process->expects($this->once())
             ->method('isOutputDisabled')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $process->expects($this->once())
             ->method('getWorkingDirectory')
-            ->will($this->returnValue($workingDirectory));
+            ->willReturn($workingDirectory);
 
         $exception = new ProcessFailedException($process);
 
diff --git a/src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorCollectionTest.php b/src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorCollectionTest.php
index 1aee259a76c8f..b91d1e62ebb95 100644
--- a/src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorCollectionTest.php
+++ b/src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorCollectionTest.php
@@ -128,11 +128,11 @@ public function testSetValueCallsAdderAndRemoverForNestedCollections()
 
         $car->expects($this->any())
             ->method('getStructure')
-            ->will($this->returnValue($structure));
+            ->willReturn($structure);
 
         $structure->expects($this->at(0))
             ->method('getAxes')
-            ->will($this->returnValue($axesBefore));
+            ->willReturn($axesBefore);
         $structure->expects($this->at(1))
             ->method('removeAxis')
             ->with('fourth');
@@ -158,7 +158,7 @@ public function testSetValueFailsIfNoAdderNorRemoverFound()
 
         $car->expects($this->any())
             ->method('getAxes')
-            ->will($this->returnValue($axesBefore));
+            ->willReturn($axesBefore);
 
         $this->propertyAccessor->setValue($car, 'axes', $axesAfter);
     }
diff --git a/src/Symfony/Component/Routing/Tests/Loader/AnnotationClassLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/AnnotationClassLoaderTest.php
index 657f361b4035b..7726dc6fa89f1 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/AnnotationClassLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/AnnotationClassLoaderTest.php
@@ -119,7 +119,7 @@ public function testLoad($className, $routeData = [], $methodArgs = [])
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($routeData)]))
+            ->willReturn([$this->getAnnotatedRoute($routeData)])
         ;
 
         $routeCollection = $this->loader->load($className);
@@ -165,12 +165,12 @@ public function testClassRouteLoad()
         $this->reader
             ->expects($this->once())
             ->method('getClassAnnotation')
-            ->will($this->returnValue($this->getAnnotatedRoute($classRouteData)))
+            ->willReturn($this->getAnnotatedRoute($classRouteData))
         ;
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($methodRouteData)]))
+            ->willReturn([$this->getAnnotatedRoute($methodRouteData)])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BarClass');
@@ -193,12 +193,12 @@ public function testInvokableClassRouteLoadWithMethodAnnotation()
         $this->reader
             ->expects($this->exactly(1))
             ->method('getClassAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($classRouteData)]))
+            ->willReturn([$this->getAnnotatedRoute($classRouteData)])
         ;
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BazClass');
@@ -221,19 +221,19 @@ public function testInvokableClassRouteLoadWithClassAnnotation()
         $this->reader
             ->expects($this->exactly(1))
             ->method('getClassAnnotation')
-            ->will($this->returnValue($this->getAnnotatedRoute($classRouteData)))
+            ->willReturn($this->getAnnotatedRoute($classRouteData))
         ;
 
         $this->reader
             ->expects($this->exactly(1))
             ->method('getClassAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($classRouteData)]))
+            ->willReturn([$this->getAnnotatedRoute($classRouteData)])
         ;
 
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BazClass');
@@ -263,12 +263,12 @@ public function testInvokableClassMultipleRouteLoad()
         $this->reader
             ->expects($this->exactly(1))
             ->method('getClassAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($classRouteData1), $this->getAnnotatedRoute($classRouteData2)]))
+            ->willReturn([$this->getAnnotatedRoute($classRouteData1), $this->getAnnotatedRoute($classRouteData2)])
         ;
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BazClass');
@@ -304,12 +304,12 @@ public function testInvokableClassWithMethodRouteLoad()
         $this->reader
             ->expects($this->once())
             ->method('getClassAnnotation')
-            ->will($this->returnValue($this->getAnnotatedRoute($classRouteData)))
+            ->willReturn($this->getAnnotatedRoute($classRouteData))
         ;
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($methodRouteData)]))
+            ->willReturn([$this->getAnnotatedRoute($methodRouteData)])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BazClass');
@@ -336,7 +336,7 @@ public function testDefaultRouteName()
         $this->reader
             ->expects($this->once())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([$this->getAnnotatedRoute($methodRouteData)]))
+            ->willReturn([$this->getAnnotatedRoute($methodRouteData)])
         ;
 
         $routeCollection = $this->loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\EncodingClass');
diff --git a/src/Symfony/Component/Routing/Tests/Loader/AnnotationDirectoryLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/AnnotationDirectoryLoaderTest.php
index 9465ef05df23c..df96a679e40f9 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/AnnotationDirectoryLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/AnnotationDirectoryLoaderTest.php
@@ -34,13 +34,13 @@ public function testLoad()
         $this->reader
             ->expects($this->any())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $this->reader
             ->expects($this->any())
             ->method('getClassAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses');
@@ -58,13 +58,13 @@ public function testLoadIgnoresHiddenDirectories()
         $this->reader
             ->expects($this->any())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $this->reader
             ->expects($this->any())
             ->method('getClassAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses');
@@ -93,7 +93,7 @@ public function testLoadFileIfLocatedResourceIsFile()
         $this->reader
             ->expects($this->any())
             ->method('getMethodAnnotations')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses/FooClass.php');
diff --git a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
index 43eb44e48df9e..066b7c45f54e3 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
@@ -62,7 +62,7 @@ public function testLoadVariadic()
         $route = new Route(['path' => '/path/to/{id}']);
         $this->reader->expects($this->once())->method('getClassAnnotation');
         $this->reader->expects($this->once())->method('getMethodAnnotations')
-            ->will($this->returnValue([$route]));
+            ->willReturn([$route]);
 
         $this->loader->load(__DIR__.'/../Fixtures/OtherAnnotatedClasses/VariadicClass.php');
     }
diff --git a/src/Symfony/Component/Routing/Tests/Loader/ObjectRouteLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/ObjectRouteLoaderTest.php
index 89dcd5ba3f11d..774e1a1fe5752 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/ObjectRouteLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/ObjectRouteLoaderTest.php
@@ -89,7 +89,7 @@ public function testExceptionOnMethodNotReturningCollection()
             ->getMock();
         $service->expects($this->once())
             ->method('loadRoutes')
-            ->will($this->returnValue('NOT_A_COLLECTION'));
+            ->willReturn('NOT_A_COLLECTION');
 
         $loader = new ObjectRouteLoaderForTest();
         $loader->loaderMap = ['my_service' => $service];
diff --git a/src/Symfony/Component/Routing/Tests/Matcher/RedirectableUrlMatcherTest.php b/src/Symfony/Component/Routing/Tests/Matcher/RedirectableUrlMatcherTest.php
index e4336cdcac6c5..b14fe98d4d4d5 100644
--- a/src/Symfony/Component/Routing/Tests/Matcher/RedirectableUrlMatcherTest.php
+++ b/src/Symfony/Component/Routing/Tests/Matcher/RedirectableUrlMatcherTest.php
@@ -23,7 +23,7 @@ public function testMissingTrailingSlash()
         $coll->add('foo', new Route('/foo/'));
 
         $matcher = $this->getUrlMatcher($coll);
-        $matcher->expects($this->once())->method('redirect')->will($this->returnValue([]));
+        $matcher->expects($this->once())->method('redirect')->willReturn([]);
         $matcher->match('/foo');
     }
 
@@ -51,7 +51,7 @@ public function testSchemeRedirectRedirectsToFirstScheme()
             ->expects($this->once())
             ->method('redirect')
             ->with('/foo', 'foo', 'ftp')
-            ->will($this->returnValue(['_route' => 'foo']))
+            ->willReturn(['_route' => 'foo'])
         ;
         $matcher->match('/foo');
     }
@@ -78,7 +78,7 @@ public function testSchemeRedirectWithParams()
             ->expects($this->once())
             ->method('redirect')
             ->with('/foo/baz', 'foo', 'https')
-            ->will($this->returnValue(['redirect' => 'value']))
+            ->willReturn(['redirect' => 'value'])
         ;
         $this->assertEquals(['_route' => 'foo', 'bar' => 'baz', 'redirect' => 'value'], $matcher->match('/foo/baz'));
     }
@@ -93,7 +93,7 @@ public function testSlashRedirectWithParams()
             ->expects($this->once())
             ->method('redirect')
             ->with('/foo/baz/', 'foo', null)
-            ->will($this->returnValue(['redirect' => 'value']))
+            ->willReturn(['redirect' => 'value'])
         ;
         $this->assertEquals(['_route' => 'foo', 'bar' => 'baz', 'redirect' => 'value'], $matcher->match('/foo/baz'));
     }
@@ -124,7 +124,7 @@ public function testFallbackPage()
         $coll->add('bar', new Route('/{name}'));
 
         $matcher = $this->getUrlMatcher($coll);
-        $matcher->expects($this->once())->method('redirect')->with('/foo/')->will($this->returnValue(['_route' => 'foo']));
+        $matcher->expects($this->once())->method('redirect')->with('/foo/')->willReturn(['_route' => 'foo']);
         $this->assertSame(['_route' => 'foo'], $matcher->match('/foo'));
     }
 
diff --git a/src/Symfony/Component/Routing/Tests/RouteCollectionBuilderTest.php b/src/Symfony/Component/Routing/Tests/RouteCollectionBuilderTest.php
index 20afdff484f8a..11d9453e09093 100644
--- a/src/Symfony/Component/Routing/Tests/RouteCollectionBuilderTest.php
+++ b/src/Symfony/Component/Routing/Tests/RouteCollectionBuilderTest.php
@@ -28,7 +28,7 @@ public function testImport()
         $resolver->expects($this->once())
             ->method('resolve')
             ->with('admin_routing.yml', 'yaml')
-            ->will($this->returnValue($resolvedLoader));
+            ->willReturn($resolvedLoader);
 
         $originalRoute = new Route('/foo/path');
         $expectedCollection = new RouteCollection();
@@ -39,12 +39,12 @@ public function testImport()
             ->expects($this->once())
             ->method('load')
             ->with('admin_routing.yml', 'yaml')
-            ->will($this->returnValue($expectedCollection));
+            ->willReturn($expectedCollection);
 
         $loader = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
         $loader->expects($this->any())
             ->method('getResolver')
-            ->will($this->returnValue($resolver));
+            ->willReturn($resolver);
 
         // import the file!
         $routes = new RouteCollectionBuilder($loader);
@@ -107,11 +107,11 @@ public function testFlushOrdering()
         // make this loader able to do the import - keeps mocking simple
         $loader->expects($this->any())
             ->method('supports')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $loader
             ->expects($this->once())
             ->method('load')
-            ->will($this->returnValue($importedCollection));
+            ->willReturn($importedCollection);
 
         $routes = new RouteCollectionBuilder($loader);
 
@@ -296,11 +296,11 @@ public function testFlushSetsPrefixedWithMultipleLevels()
         // make this loader able to do the import - keeps mocking simple
         $loader->expects($this->any())
             ->method('supports')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $loader
             ->expects($this->any())
             ->method('load')
-            ->will($this->returnValue($importedCollection));
+            ->willReturn($importedCollection);
         // import this from the /admin route builder
         $adminRoutes->import('admin.yml', '/imported');
 
@@ -347,11 +347,11 @@ public function testAddsThePrefixOnlyOnceWhenLoadingMultipleCollections()
         $loader = $this->getMockBuilder('Symfony\Component\Config\Loader\LoaderInterface')->getMock();
         $loader->expects($this->any())
             ->method('supports')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $loader
             ->expects($this->any())
             ->method('load')
-            ->will($this->returnValue([$firstCollection, $secondCollection]));
+            ->willReturn([$firstCollection, $secondCollection]);
 
         $routeCollectionBuilder = new RouteCollectionBuilder($loader);
         $routeCollectionBuilder->import('/directory/recurse/*', '/other/', 'glob');
diff --git a/src/Symfony/Component/Routing/Tests/RouterTest.php b/src/Symfony/Component/Routing/Tests/RouterTest.php
index 589ce5403ac2b..0f46e5317b68c 100644
--- a/src/Symfony/Component/Routing/Tests/RouterTest.php
+++ b/src/Symfony/Component/Routing/Tests/RouterTest.php
@@ -88,7 +88,7 @@ public function testThatRouteCollectionIsLoaded()
 
         $this->loader->expects($this->once())
             ->method('load')->with('routing.yml', 'ResourceType')
-            ->will($this->returnValue($routeCollection));
+            ->willReturn($routeCollection);
 
         $this->assertSame($routeCollection, $this->router->getRouteCollection());
     }
@@ -102,7 +102,7 @@ public function testMatcherIsCreatedIfCacheIsNotConfigured($option)
 
         $this->loader->expects($this->once())
             ->method('load')->with('routing.yml', null)
-            ->will($this->returnValue(new RouteCollection()));
+            ->willReturn(new RouteCollection());
 
         $this->assertInstanceOf('Symfony\\Component\\Routing\\Matcher\\UrlMatcher', $this->router->getMatcher());
     }
@@ -124,7 +124,7 @@ public function testGeneratorIsCreatedIfCacheIsNotConfigured($option)
 
         $this->loader->expects($this->once())
             ->method('load')->with('routing.yml', null)
-            ->will($this->returnValue(new RouteCollection()));
+            ->willReturn(new RouteCollection());
 
         $this->assertInstanceOf('Symfony\\Component\\Routing\\Generator\\UrlGenerator', $this->router->getGenerator());
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/AuthenticationProviderManagerTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/AuthenticationProviderManagerTest.php
index fd2de0ca25d4e..379da4bb61329 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/AuthenticationProviderManagerTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/AuthenticationProviderManagerTest.php
@@ -177,13 +177,13 @@ protected function getAuthenticationProvider($supports, $token = null, $exceptio
         $provider = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface')->getMock();
         $provider->expects($this->once())
                  ->method('supports')
-                 ->will($this->returnValue($supports))
+                 ->willReturn($supports)
         ;
 
         if (null !== $token) {
             $provider->expects($this->once())
                      ->method('authenticate')
-                     ->will($this->returnValue($token))
+                     ->willReturn($token)
             ;
         } elseif (null !== $exception) {
             $provider->expects($this->once())
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/AnonymousAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/AnonymousAuthenticationProviderTest.php
index 92441ba5fc617..a888d2bf81b9d 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/AnonymousAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/AnonymousAuthenticationProviderTest.php
@@ -58,7 +58,7 @@ protected function getSupportedToken($secret)
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\AnonymousToken')->setMethods(['getSecret'])->disableOriginalConstructor()->getMock();
         $token->expects($this->any())
               ->method('getSecret')
-              ->will($this->returnValue($secret))
+              ->willReturn($secret)
         ;
 
         return $token;
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/DaoAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/DaoAuthenticationProviderTest.php
index 55814a994c577..53ff170554222 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/DaoAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/DaoAuthenticationProviderTest.php
@@ -77,7 +77,7 @@ public function testRetrieveUserReturnsUserFromTokenOnReauthentication()
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getUser')
-              ->will($this->returnValue($user))
+              ->willReturn($user)
         ;
 
         $provider = new DaoAuthenticationProvider($userProvider, $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserCheckerInterface')->getMock(), 'key', $this->getMockBuilder('Symfony\\Component\\Security\\Core\\Encoder\\EncoderFactoryInterface')->getMock());
@@ -95,7 +95,7 @@ public function testRetrieveUser()
         $userProvider = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserProviderInterface')->getMock();
         $userProvider->expects($this->once())
                      ->method('loadUserByUsername')
-                     ->will($this->returnValue($user))
+                     ->willReturn($user)
         ;
 
         $provider = new DaoAuthenticationProvider($userProvider, $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserCheckerInterface')->getMock(), 'key', $this->getMockBuilder('Symfony\\Component\\Security\\Core\\Encoder\\EncoderFactoryInterface')->getMock());
@@ -124,7 +124,7 @@ public function testCheckAuthenticationWhenCredentialsAreEmpty()
         $token
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(''))
+            ->willReturn('')
         ;
 
         $method->invoke(
@@ -140,7 +140,7 @@ public function testCheckAuthenticationWhenCredentialsAre0()
         $encoder
             ->expects($this->once())
             ->method('isPasswordValid')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $provider = $this->getProvider(null, null, $encoder);
@@ -151,7 +151,7 @@ public function testCheckAuthenticationWhenCredentialsAre0()
         $token
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue('0'))
+            ->willReturn('0')
         ;
 
         $method->invoke(
@@ -169,7 +169,7 @@ public function testCheckAuthenticationWhenCredentialsAreNotValid()
         $encoder = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\Encoder\\PasswordEncoderInterface')->getMock();
         $encoder->expects($this->once())
                 ->method('isPasswordValid')
-                ->will($this->returnValue(false))
+                ->willReturn(false)
         ;
 
         $provider = $this->getProvider(null, null, $encoder);
@@ -179,7 +179,7 @@ public function testCheckAuthenticationWhenCredentialsAreNotValid()
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getCredentials')
-              ->will($this->returnValue('foo'))
+              ->willReturn('foo')
         ;
 
         $method->invoke($provider, $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock(), $token);
@@ -193,18 +193,18 @@ public function testCheckAuthenticationDoesNotReauthenticateWhenPasswordHasChang
         $user = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock();
         $user->expects($this->once())
              ->method('getPassword')
-             ->will($this->returnValue('foo'))
+             ->willReturn('foo')
         ;
 
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getUser')
-              ->will($this->returnValue($user));
+              ->willReturn($user);
 
         $dbUser = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock();
         $dbUser->expects($this->once())
                ->method('getPassword')
-               ->will($this->returnValue('newFoo'))
+               ->willReturn('newFoo')
         ;
 
         $provider = $this->getProvider();
@@ -218,18 +218,18 @@ public function testCheckAuthenticationWhenTokenNeedsReauthenticationWorksWithou
         $user = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock();
         $user->expects($this->once())
              ->method('getPassword')
-             ->will($this->returnValue('foo'))
+             ->willReturn('foo')
         ;
 
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getUser')
-              ->will($this->returnValue($user));
+              ->willReturn($user);
 
         $dbUser = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock();
         $dbUser->expects($this->once())
                ->method('getPassword')
-               ->will($this->returnValue('foo'))
+               ->willReturn('foo')
         ;
 
         $provider = $this->getProvider();
@@ -243,7 +243,7 @@ public function testCheckAuthentication()
         $encoder = $this->getMockBuilder('Symfony\\Component\\Security\\Core\\Encoder\\PasswordEncoderInterface')->getMock();
         $encoder->expects($this->once())
                 ->method('isPasswordValid')
-                ->will($this->returnValue(true))
+                ->willReturn(true)
         ;
 
         $provider = $this->getProvider(null, null, $encoder);
@@ -253,7 +253,7 @@ public function testCheckAuthentication()
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getCredentials')
-              ->will($this->returnValue('foo'))
+              ->willReturn('foo')
         ;
 
         $method->invoke($provider, $this->getMockBuilder('Symfony\\Component\\Security\\Core\\User\\UserInterface')->getMock(), $token);
@@ -265,7 +265,7 @@ protected function getSupportedToken()
         $mock
             ->expects($this->any())
             ->method('getProviderKey')
-            ->will($this->returnValue('key'))
+            ->willReturn('key')
         ;
 
         return $mock;
@@ -277,7 +277,7 @@ protected function getProvider($user = null, $userChecker = null, $passwordEncod
         if (null !== $user) {
             $userProvider->expects($this->once())
                          ->method('loadUserByUsername')
-                         ->will($this->returnValue($user))
+                         ->willReturn($user)
             ;
         }
 
@@ -293,7 +293,7 @@ protected function getProvider($user = null, $userChecker = null, $passwordEncod
         $encoderFactory
             ->expects($this->any())
             ->method('getEncoder')
-            ->will($this->returnValue($passwordEncoder))
+            ->willReturn($passwordEncoder)
         ;
 
         return new DaoAuthenticationProvider($userProvider, $userChecker, 'key', $encoderFactory);
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/LdapBindAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/LdapBindAuthenticationProviderTest.php
index ef19bc2c32739..bad3072f4a9af 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/LdapBindAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/LdapBindAuthenticationProviderTest.php
@@ -113,7 +113,7 @@ public function testQueryForDn()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($collection))
+            ->willReturn($collection)
         ;
 
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
@@ -121,13 +121,13 @@ public function testQueryForDn()
             ->expects($this->once())
             ->method('escape')
             ->with('foo', '')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
             ->with('{username}', 'foobar')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
         $userChecker = $this->getMockBuilder(UserCheckerInterface::class)->getMock();
 
@@ -153,14 +153,14 @@ public function testEmptyQueryResultShouldThrowAnException()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($collection))
+            ->willReturn($collection)
         ;
 
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
         $userChecker = $this->getMockBuilder(UserCheckerInterface::class)->getMock();
 
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/PreAuthenticatedAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/PreAuthenticatedAuthenticationProviderTest.php
index a101208d681cc..57bce20f5b20c 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/PreAuthenticatedAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/PreAuthenticatedAuthenticationProviderTest.php
@@ -31,7 +31,7 @@ public function testSupports()
         $token
             ->expects($this->once())
             ->method('getProviderKey')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $this->assertFalse($provider->supports($token));
     }
@@ -62,7 +62,7 @@ public function testAuthenticate()
         $user
             ->expects($this->once())
             ->method('getRoles')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
         $provider = $this->getProvider($user);
 
@@ -99,20 +99,20 @@ protected function getSupportedToken($user = false, $credentials = false)
         if (false !== $user) {
             $token->expects($this->once())
                   ->method('getUser')
-                  ->will($this->returnValue($user))
+                  ->willReturn($user)
             ;
         }
         if (false !== $credentials) {
             $token->expects($this->once())
                   ->method('getCredentials')
-                  ->will($this->returnValue($credentials))
+                  ->willReturn($credentials)
             ;
         }
 
         $token
             ->expects($this->any())
             ->method('getProviderKey')
-            ->will($this->returnValue('key'))
+            ->willReturn('key')
         ;
 
         $token->setAttributes(['foo' => 'bar']);
@@ -126,7 +126,7 @@ protected function getProvider($user = null, $userChecker = null)
         if (null !== $user) {
             $userProvider->expects($this->once())
                          ->method('loadUserByUsername')
-                         ->will($this->returnValue($user))
+                         ->willReturn($user)
             ;
         }
 
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/RememberMeAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/RememberMeAuthenticationProviderTest.php
index 26287693d6b08..6ac7438a064a2 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/RememberMeAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/RememberMeAuthenticationProviderTest.php
@@ -69,7 +69,7 @@ public function testAuthenticate()
         $user = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $user->expects($this->exactly(2))
              ->method('getRoles')
-             ->will($this->returnValue(['ROLE_FOO']));
+             ->willReturn(['ROLE_FOO']);
 
         $provider = $this->getProvider();
 
@@ -89,14 +89,14 @@ protected function getSupportedToken($user = null, $secret = 'test')
             $user
                 ->expects($this->any())
                 ->method('getRoles')
-                ->will($this->returnValue([]));
+                ->willReturn([]);
         }
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\RememberMeToken')->setMethods(['getProviderKey'])->setConstructorArgs([$user, 'foo', $secret])->getMock();
         $token
             ->expects($this->once())
             ->method('getProviderKey')
-            ->will($this->returnValue('foo'));
+            ->willReturn('foo');
 
         return $token;
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/SimpleAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/SimpleAuthenticationProviderTest.php
index 661d23a4e7e21..07c1618f214dd 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/SimpleAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/SimpleAuthenticationProviderTest.php
@@ -29,7 +29,7 @@ public function testAuthenticateWhenPreChecksFails()
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
 
         $userChecker = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserCheckerInterface')->getMock();
         $userChecker->expects($this->once())
@@ -39,7 +39,7 @@ public function testAuthenticateWhenPreChecksFails()
         $authenticator = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\SimpleAuthenticatorInterface')->getMock();
         $authenticator->expects($this->once())
             ->method('authenticateToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $provider = $this->getProvider($authenticator, null, $userChecker);
 
@@ -56,7 +56,7 @@ public function testAuthenticateWhenPostChecksFails()
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
 
         $userChecker = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserCheckerInterface')->getMock();
         $userChecker->expects($this->once())
@@ -66,7 +66,7 @@ public function testAuthenticateWhenPostChecksFails()
         $authenticator = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\SimpleAuthenticatorInterface')->getMock();
         $authenticator->expects($this->once())
             ->method('authenticateToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $provider = $this->getProvider($authenticator, null, $userChecker);
 
@@ -78,11 +78,11 @@ public function testAuthenticateSkipsUserChecksForNonUserInterfaceObjects()
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue('string-user'));
+            ->willReturn('string-user');
         $authenticator = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\SimpleAuthenticatorInterface')->getMock();
         $authenticator->expects($this->once())
             ->method('authenticateToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $this->assertSame($token, $this->getProvider($authenticator, null, new UserChecker())->authenticate($token));
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/UserAuthenticationProviderTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/UserAuthenticationProviderTest.php
index 7c306d2f1f0f6..e959d18c53409 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/UserAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Provider/UserAuthenticationProviderTest.php
@@ -76,7 +76,7 @@ public function testAuthenticateWhenProviderDoesNotReturnAnUserInterface()
         $provider = $this->getProvider(false, true);
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue(null))
+                 ->willReturn(null)
         ;
 
         $provider->authenticate($this->getSupportedToken());
@@ -96,7 +96,7 @@ public function testAuthenticateWhenPreChecksFails()
         $provider = $this->getProvider($userChecker);
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock()))
+                 ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock())
         ;
 
         $provider->authenticate($this->getSupportedToken());
@@ -116,7 +116,7 @@ public function testAuthenticateWhenPostChecksFails()
         $provider = $this->getProvider($userChecker);
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock()))
+                 ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock())
         ;
 
         $provider->authenticate($this->getSupportedToken());
@@ -131,7 +131,7 @@ public function testAuthenticateWhenPostCheckAuthenticationFails()
         $provider = $this->getProvider();
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock()))
+                 ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock())
         ;
         $provider->expects($this->once())
                  ->method('checkAuthentication')
@@ -150,7 +150,7 @@ public function testAuthenticateWhenPostCheckAuthenticationFailsWithHideFalse()
         $provider = $this->getProvider(false, false);
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock()))
+                 ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock())
         ;
         $provider->expects($this->once())
                  ->method('checkAuthentication')
@@ -165,24 +165,24 @@ public function testAuthenticate()
         $user = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $user->expects($this->once())
              ->method('getRoles')
-             ->will($this->returnValue(['ROLE_FOO']))
+             ->willReturn(['ROLE_FOO'])
         ;
 
         $provider = $this->getProvider();
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($user))
+                 ->willReturn($user)
         ;
 
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getCredentials')
-              ->will($this->returnValue('foo'))
+              ->willReturn('foo')
         ;
 
         $token->expects($this->once())
               ->method('getRoles')
-              ->will($this->returnValue([]))
+              ->willReturn([])
         ;
 
         $authToken = $provider->authenticate($token);
@@ -199,25 +199,25 @@ public function testAuthenticateWithPreservingRoleSwitchUserRole()
         $user = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $user->expects($this->once())
              ->method('getRoles')
-             ->will($this->returnValue(['ROLE_FOO']))
+             ->willReturn(['ROLE_FOO'])
         ;
 
         $provider = $this->getProvider();
         $provider->expects($this->once())
                  ->method('retrieveUser')
-                 ->will($this->returnValue($user))
+                 ->willReturn($user)
         ;
 
         $token = $this->getSupportedToken();
         $token->expects($this->once())
               ->method('getCredentials')
-              ->will($this->returnValue('foo'))
+              ->willReturn('foo')
         ;
 
         $switchUserRole = new SwitchUserRole('foo', $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock());
         $token->expects($this->once())
               ->method('getRoles')
-              ->will($this->returnValue([$switchUserRole]))
+              ->willReturn([$switchUserRole])
         ;
 
         $authToken = $provider->authenticate($token);
@@ -236,7 +236,7 @@ protected function getSupportedToken()
         $mock
             ->expects($this->any())
             ->method('getProviderKey')
-            ->will($this->returnValue('key'))
+            ->willReturn('key')
         ;
 
         $mock->setAttributes(['foo' => 'bar']);
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
index 8280366d4af61..7516759c0aa8e 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
@@ -77,7 +77,7 @@ public function testGetUsername()
         $this->assertEquals('fabien', $token->getUsername());
 
         $user = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
-        $user->expects($this->once())->method('getUsername')->will($this->returnValue('fabien'));
+        $user->expects($this->once())->method('getUsername')->willReturn('fabien');
         $token->setUser($user);
         $this->assertEquals('fabien', $token->getUsername());
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/RememberMeTokenTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/RememberMeTokenTest.php
index 0bdd54dc308bd..e1329e37430b6 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/RememberMeTokenTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/RememberMeTokenTest.php
@@ -59,7 +59,7 @@ protected function getUser($roles = ['ROLE_FOO'])
         $user
             ->expects($this->once())
             ->method('getRoles')
-            ->will($this->returnValue($roles))
+            ->willReturn($roles)
         ;
 
         return $user;
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
index 9ee86a079bc9a..c60a59b375d3e 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
@@ -72,10 +72,10 @@ protected function getVoterFor2Roles($token, $vote1, $vote2)
         $voter = $this->getMockBuilder('Symfony\Component\Security\Core\Authorization\Voter\VoterInterface')->getMock();
         $voter->expects($this->any())
               ->method('vote')
-              ->will($this->returnValueMap([
+              ->willReturnMap([
                   [$token, null, ['ROLE_FOO'], $vote1],
                   [$token, null, ['ROLE_BAR'], $vote2],
-              ]))
+              ])
         ;
 
         return $voter;
@@ -137,7 +137,7 @@ protected function getVoter($vote)
         $voter = $this->getMockBuilder('Symfony\Component\Security\Core\Authorization\Voter\VoterInterface')->getMock();
         $voter->expects($this->any())
               ->method('vote')
-              ->will($this->returnValue($vote));
+              ->willReturn($vote);
 
         return $voter;
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/AuthorizationCheckerTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/AuthorizationCheckerTest.php
index 6a07c94f2039c..b4986b0177863 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/AuthorizationCheckerTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/AuthorizationCheckerTest.php
@@ -46,7 +46,7 @@ public function testVoteAuthenticatesTokenIfNecessary()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->equalTo($token))
-            ->will($this->returnValue($newToken));
+            ->willReturn($newToken);
 
         // default with() isn't a strict check
         $tokenComparison = function ($value) use ($newToken) {
@@ -58,7 +58,7 @@ public function testVoteAuthenticatesTokenIfNecessary()
             ->expects($this->once())
             ->method('decide')
             ->with($this->callback($tokenComparison))
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         // first run the token has not been re-authenticated yet, after isGranted is called, it should be equal
         $this->assertNotSame($newToken, $this->tokenStorage->getToken());
@@ -83,12 +83,12 @@ public function testIsGranted($decide)
         $token
             ->expects($this->once())
             ->method('isAuthenticated')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->accessDecisionManager
             ->expects($this->once())
             ->method('decide')
-            ->will($this->returnValue($decide));
+            ->willReturn($decide);
         $this->tokenStorage->setToken($token);
         $this->assertSame($decide, $this->authorizationChecker->isGranted('ROLE_FOO'));
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/ExpressionVoterTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/ExpressionVoterTest.php
index 7e435687c8c3c..ce368aa374f7e 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/ExpressionVoterTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/ExpressionVoterTest.php
@@ -51,7 +51,7 @@ protected function getToken(array $roles, $tokenExpectsGetRoles = true)
         if ($tokenExpectsGetRoles) {
             $token->expects($this->once())
                 ->method('getRoles')
-                ->will($this->returnValue($roles));
+                ->willReturn($roles);
         }
 
         return $token;
@@ -64,7 +64,7 @@ protected function createExpressionLanguage($expressionLanguageExpectsEvaluate =
         if ($expressionLanguageExpectsEvaluate) {
             $mock->expects($this->once())
                 ->method('evaluate')
-                ->will($this->returnValue(true));
+                ->willReturn(true);
         }
 
         return $mock;
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/RoleVoterTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/RoleVoterTest.php
index 5fb45e08b3925..955ab842e139f 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/RoleVoterTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/Voter/RoleVoterTest.php
@@ -54,7 +54,7 @@ protected function getToken(array $roles)
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token->expects($this->once())
               ->method('getRoles')
-              ->will($this->returnValue($roles));
+              ->willReturn($roles);
 
         return $token;
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Encoder/UserPasswordEncoderTest.php b/src/Symfony/Component/Security/Core/Tests/Encoder/UserPasswordEncoderTest.php
index 3328837ef1f74..41a602f976047 100644
--- a/src/Symfony/Component/Security/Core/Tests/Encoder/UserPasswordEncoderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Encoder/UserPasswordEncoderTest.php
@@ -21,19 +21,19 @@ public function testEncodePassword()
         $userMock = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $userMock->expects($this->any())
             ->method('getSalt')
-            ->will($this->returnValue('userSalt'));
+            ->willReturn('userSalt');
 
         $mockEncoder = $this->getMockBuilder('Symfony\Component\Security\Core\Encoder\PasswordEncoderInterface')->getMock();
         $mockEncoder->expects($this->any())
             ->method('encodePassword')
             ->with($this->equalTo('plainPassword'), $this->equalTo('userSalt'))
-            ->will($this->returnValue('encodedPassword'));
+            ->willReturn('encodedPassword');
 
         $mockEncoderFactory = $this->getMockBuilder('Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface')->getMock();
         $mockEncoderFactory->expects($this->any())
             ->method('getEncoder')
             ->with($this->equalTo($userMock))
-            ->will($this->returnValue($mockEncoder));
+            ->willReturn($mockEncoder);
 
         $passwordEncoder = new UserPasswordEncoder($mockEncoderFactory);
 
@@ -46,22 +46,22 @@ public function testIsPasswordValid()
         $userMock = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $userMock->expects($this->any())
             ->method('getSalt')
-            ->will($this->returnValue('userSalt'));
+            ->willReturn('userSalt');
         $userMock->expects($this->any())
             ->method('getPassword')
-            ->will($this->returnValue('encodedPassword'));
+            ->willReturn('encodedPassword');
 
         $mockEncoder = $this->getMockBuilder('Symfony\Component\Security\Core\Encoder\PasswordEncoderInterface')->getMock();
         $mockEncoder->expects($this->any())
             ->method('isPasswordValid')
             ->with($this->equalTo('encodedPassword'), $this->equalTo('plainPassword'), $this->equalTo('userSalt'))
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $mockEncoderFactory = $this->getMockBuilder('Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface')->getMock();
         $mockEncoderFactory->expects($this->any())
             ->method('getEncoder')
             ->with($this->equalTo($userMock))
-            ->will($this->returnValue($mockEncoder));
+            ->willReturn($mockEncoder);
 
         $passwordEncoder = new UserPasswordEncoder($mockEncoderFactory);
 
diff --git a/src/Symfony/Component/Security/Core/Tests/SecurityTest.php b/src/Symfony/Component/Security/Core/Tests/SecurityTest.php
index 7a1b572fc7d02..fa3e416e55c15 100644
--- a/src/Symfony/Component/Security/Core/Tests/SecurityTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/SecurityTest.php
@@ -29,7 +29,7 @@ public function testGetToken()
 
         $tokenStorage->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $container = $this->createContainer('security.token_storage', $tokenStorage);
 
@@ -45,12 +45,12 @@ public function testGetUser($userInToken, $expectedUser)
         $token = $this->getMockBuilder(TokenInterface::class)->getMock();
         $token->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue($userInToken));
+            ->willReturn($userInToken);
         $tokenStorage = $this->getMockBuilder(TokenStorageInterface::class)->getMock();
 
         $tokenStorage->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
 
         $container = $this->createContainer('security.token_storage', $tokenStorage);
 
@@ -75,7 +75,7 @@ public function testIsGranted()
         $authorizationChecker->expects($this->once())
             ->method('isGranted')
             ->with('SOME_ATTRIBUTE', 'SOME_SUBJECT')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $container = $this->createContainer('security.authorization_checker', $authorizationChecker);
 
@@ -90,7 +90,7 @@ private function createContainer($serviceId, $serviceObject)
         $container->expects($this->atLeastOnce())
             ->method('get')
             ->with($serviceId)
-            ->will($this->returnValue($serviceObject));
+            ->willReturn($serviceObject);
 
         return $container;
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/User/ChainUserProviderTest.php b/src/Symfony/Component/Security/Core/Tests/User/ChainUserProviderTest.php
index 067eef2497b83..05a7fbba19d88 100644
--- a/src/Symfony/Component/Security/Core/Tests/User/ChainUserProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/User/ChainUserProviderTest.php
@@ -33,7 +33,7 @@ public function testLoadUserByUsername()
             ->expects($this->once())
             ->method('loadUserByUsername')
             ->with($this->equalTo('foo'))
-            ->will($this->returnValue($account = $this->getAccount()))
+            ->willReturn($account = $this->getAccount())
         ;
 
         $provider = new ChainUserProvider([$provider1, $provider2]);
@@ -78,7 +78,7 @@ public function testRefreshUser()
         $provider2
             ->expects($this->once())
             ->method('refreshUser')
-            ->will($this->returnValue($account = $this->getAccount()))
+            ->willReturn($account = $this->getAccount())
         ;
 
         $provider = new ChainUserProvider([$provider1, $provider2]);
@@ -98,7 +98,7 @@ public function testRefreshUserAgain()
         $provider2
             ->expects($this->once())
             ->method('refreshUser')
-            ->will($this->returnValue($account = $this->getAccount()))
+            ->willReturn($account = $this->getAccount())
         ;
 
         $provider = new ChainUserProvider([$provider1, $provider2]);
@@ -135,7 +135,7 @@ public function testSupportsClass()
             ->expects($this->once())
             ->method('supportsClass')
             ->with($this->equalTo('foo'))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $provider2 = $this->getProvider();
@@ -143,7 +143,7 @@ public function testSupportsClass()
             ->expects($this->once())
             ->method('supportsClass')
             ->with($this->equalTo('foo'))
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $provider = new ChainUserProvider([$provider1, $provider2]);
@@ -157,7 +157,7 @@ public function testSupportsClassWhenNotSupported()
             ->expects($this->once())
             ->method('supportsClass')
             ->with($this->equalTo('foo'))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $provider2 = $this->getProvider();
@@ -165,7 +165,7 @@ public function testSupportsClassWhenNotSupported()
             ->expects($this->once())
             ->method('supportsClass')
             ->with($this->equalTo('foo'))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $provider = new ChainUserProvider([$provider1, $provider2]);
@@ -185,7 +185,7 @@ public function testAcceptsTraversable()
         $provider2
             ->expects($this->once())
             ->method('refreshUser')
-            ->will($this->returnValue($account = $this->getAccount()))
+            ->willReturn($account = $this->getAccount())
         ;
 
         $provider = new ChainUserProvider(new \ArrayObject([$provider1, $provider2]));
diff --git a/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php b/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php
index 418475ac9381c..39a346433e463 100644
--- a/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php
@@ -50,23 +50,23 @@ public function testLoadUserByUsernameFailsIfNoLdapEntries()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(0))
+            ->willReturn(0)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
@@ -83,23 +83,23 @@ public function testLoadUserByUsernameFailsIfMoreThanOneLdapEntry()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(2))
+            ->willReturn(2)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
@@ -116,33 +116,33 @@ public function testLoadUserByUsernameFailsIfMoreThanOneLdapPasswordsInEntry()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [
+            ->willReturn(new Entry('foo', [
                     'sAMAccountName' => ['foo'],
                     'userpassword' => ['bar', 'baz'],
                 ]
-            )))
+            ))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword');
@@ -159,29 +159,29 @@ public function testLoadUserByUsernameShouldNotFailIfEntryHasNoUidKeyAttribute()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [])))
+            ->willReturn(new Entry('foo', []))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})');
@@ -201,32 +201,32 @@ public function testLoadUserByUsernameFailsIfEntryHasNoPasswordAttribute()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [
+            ->willReturn(new Entry('foo', [
                     'sAMAccountName' => ['foo'],
                 ]
-            )))
+            ))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword');
@@ -243,32 +243,32 @@ public function testLoadUserByUsernameIsSuccessfulWithoutPasswordAttribute()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [
+            ->willReturn(new Entry('foo', [
                     'sAMAccountName' => ['foo'],
                 ]
-            )))
+            ))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
@@ -285,32 +285,32 @@ public function testLoadUserByUsernameIsSuccessfulWithoutPasswordAttributeAndWro
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [
+            ->willReturn(new Entry('foo', [
                     'sAMAccountName' => ['foo'],
                 ]
-            )))
+            ))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('Foo'))
+            ->willReturn('Foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
@@ -324,33 +324,33 @@ public function testLoadUserByUsernameIsSuccessfulWithPasswordAttribute()
         $query
             ->expects($this->once())
             ->method('execute')
-            ->will($this->returnValue($result))
+            ->willReturn($result)
         ;
         $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
         $result
             ->expects($this->once())
             ->method('offsetGet')
             ->with(0)
-            ->will($this->returnValue(new Entry('foo', [
+            ->willReturn(new Entry('foo', [
                     'sAMAccountName' => ['foo'],
                     'userpassword' => ['bar'],
                 ]
-            )))
+            ))
         ;
         $result
             ->expects($this->once())
             ->method('count')
-            ->will($this->returnValue(1))
+            ->willReturn(1)
         ;
         $ldap
             ->expects($this->once())
             ->method('escape')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $ldap
             ->expects($this->once())
             ->method('query')
-            ->will($this->returnValue($query))
+            ->willReturn($query)
         ;
 
         $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword');
diff --git a/src/Symfony/Component/Security/Core/Tests/User/UserCheckerTest.php b/src/Symfony/Component/Security/Core/Tests/User/UserCheckerTest.php
index 8ec34843eaae0..16eea31c4f0ea 100644
--- a/src/Symfony/Component/Security/Core/Tests/User/UserCheckerTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/User/UserCheckerTest.php
@@ -28,7 +28,7 @@ public function testCheckPostAuthPass()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isCredentialsNonExpired')->will($this->returnValue(true));
+        $account->expects($this->once())->method('isCredentialsNonExpired')->willReturn(true);
 
         $this->assertNull($checker->checkPostAuth($account));
     }
@@ -41,7 +41,7 @@ public function testCheckPostAuthCredentialsExpired()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isCredentialsNonExpired')->will($this->returnValue(false));
+        $account->expects($this->once())->method('isCredentialsNonExpired')->willReturn(false);
 
         $checker->checkPostAuth($account);
     }
@@ -58,9 +58,9 @@ public function testCheckPreAuthPass()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isAccountNonLocked')->will($this->returnValue(true));
-        $account->expects($this->once())->method('isEnabled')->will($this->returnValue(true));
-        $account->expects($this->once())->method('isAccountNonExpired')->will($this->returnValue(true));
+        $account->expects($this->once())->method('isAccountNonLocked')->willReturn(true);
+        $account->expects($this->once())->method('isEnabled')->willReturn(true);
+        $account->expects($this->once())->method('isAccountNonExpired')->willReturn(true);
 
         $this->assertNull($checker->checkPreAuth($account));
     }
@@ -73,7 +73,7 @@ public function testCheckPreAuthAccountLocked()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isAccountNonLocked')->will($this->returnValue(false));
+        $account->expects($this->once())->method('isAccountNonLocked')->willReturn(false);
 
         $checker->checkPreAuth($account);
     }
@@ -86,8 +86,8 @@ public function testCheckPreAuthDisabled()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isAccountNonLocked')->will($this->returnValue(true));
-        $account->expects($this->once())->method('isEnabled')->will($this->returnValue(false));
+        $account->expects($this->once())->method('isAccountNonLocked')->willReturn(true);
+        $account->expects($this->once())->method('isEnabled')->willReturn(false);
 
         $checker->checkPreAuth($account);
     }
@@ -100,9 +100,9 @@ public function testCheckPreAuthAccountExpired()
         $checker = new UserChecker();
 
         $account = $this->getMockBuilder('Symfony\Component\Security\Core\User\AdvancedUserInterface')->getMock();
-        $account->expects($this->once())->method('isAccountNonLocked')->will($this->returnValue(true));
-        $account->expects($this->once())->method('isEnabled')->will($this->returnValue(true));
-        $account->expects($this->once())->method('isAccountNonExpired')->will($this->returnValue(false));
+        $account->expects($this->once())->method('isAccountNonLocked')->willReturn(true);
+        $account->expects($this->once())->method('isEnabled')->willReturn(true);
+        $account->expects($this->once())->method('isAccountNonExpired')->willReturn(false);
 
         $checker->checkPreAuth($account);
     }
diff --git a/src/Symfony/Component/Security/Core/Tests/Validator/Constraints/UserPasswordValidatorTest.php b/src/Symfony/Component/Security/Core/Tests/Validator/Constraints/UserPasswordValidatorTest.php
index 24c2c7adda187..305b665ea32c9 100644
--- a/src/Symfony/Component/Security/Core/Tests/Validator/Constraints/UserPasswordValidatorTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Validator/Constraints/UserPasswordValidatorTest.php
@@ -65,7 +65,7 @@ public function testPasswordIsValid()
         $this->encoder->expects($this->once())
             ->method('isPasswordValid')
             ->with(static::PASSWORD, 'secret', static::SALT)
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->validator->validate('secret', $constraint);
 
@@ -81,7 +81,7 @@ public function testPasswordIsNotValid()
         $this->encoder->expects($this->once())
             ->method('isPasswordValid')
             ->with(static::PASSWORD, 'secret', static::SALT)
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->validator->validate('secret', $constraint);
 
@@ -133,13 +133,13 @@ protected function createUser()
         $mock
             ->expects($this->any())
             ->method('getPassword')
-            ->will($this->returnValue(static::PASSWORD))
+            ->willReturn(static::PASSWORD)
         ;
 
         $mock
             ->expects($this->any())
             ->method('getSalt')
-            ->will($this->returnValue(static::SALT))
+            ->willReturn(static::SALT)
         ;
 
         return $mock;
@@ -157,7 +157,7 @@ protected function createEncoderFactory($encoder = null)
         $mock
             ->expects($this->any())
             ->method('getEncoder')
-            ->will($this->returnValue($encoder))
+            ->willReturn($encoder)
         ;
 
         return $mock;
@@ -171,7 +171,7 @@ protected function createTokenStorage($user = null)
         $mock
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         return $mock;
@@ -183,7 +183,7 @@ protected function createAuthenticationToken($user = null)
         $mock
             ->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         return $mock;
diff --git a/src/Symfony/Component/Security/Csrf/Tests/CsrfTokenManagerTest.php b/src/Symfony/Component/Security/Csrf/Tests/CsrfTokenManagerTest.php
index b954fc037b907..631c36a0db0ac 100644
--- a/src/Symfony/Component/Security/Csrf/Tests/CsrfTokenManagerTest.php
+++ b/src/Symfony/Component/Security/Csrf/Tests/CsrfTokenManagerTest.php
@@ -30,11 +30,11 @@ public function testGetNonExistingToken($namespace, $manager, $storage, $generat
         $storage->expects($this->once())
             ->method('hasToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $generator->expects($this->once())
             ->method('generateToken')
-            ->will($this->returnValue('TOKEN'));
+            ->willReturn('TOKEN');
 
         $storage->expects($this->once())
             ->method('setToken')
@@ -55,12 +55,12 @@ public function testUseExistingTokenIfAvailable($namespace, $manager, $storage)
         $storage->expects($this->once())
             ->method('hasToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $storage->expects($this->once())
             ->method('getToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue('TOKEN'));
+            ->willReturn('TOKEN');
 
         $token = $manager->getToken('token_id');
 
@@ -79,7 +79,7 @@ public function testRefreshTokenAlwaysReturnsNewToken($namespace, $manager, $sto
 
         $generator->expects($this->once())
             ->method('generateToken')
-            ->will($this->returnValue('TOKEN'));
+            ->willReturn('TOKEN');
 
         $storage->expects($this->once())
             ->method('setToken')
@@ -100,12 +100,12 @@ public function testMatchingTokenIsValid($namespace, $manager, $storage)
         $storage->expects($this->once())
             ->method('hasToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $storage->expects($this->once())
             ->method('getToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue('TOKEN'));
+            ->willReturn('TOKEN');
 
         $this->assertTrue($manager->isTokenValid(new CsrfToken('token_id', 'TOKEN')));
     }
@@ -118,12 +118,12 @@ public function testNonMatchingTokenIsNotValid($namespace, $manager, $storage)
         $storage->expects($this->once())
             ->method('hasToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $storage->expects($this->once())
             ->method('getToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue('TOKEN'));
+            ->willReturn('TOKEN');
 
         $this->assertFalse($manager->isTokenValid(new CsrfToken('token_id', 'FOOBAR')));
     }
@@ -136,7 +136,7 @@ public function testNonExistingTokenIsNotValid($namespace, $manager, $storage)
         $storage->expects($this->once())
             ->method('hasToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $storage->expects($this->never())
             ->method('getToken');
@@ -152,7 +152,7 @@ public function testRemoveToken($namespace, $manager, $storage)
         $storage->expects($this->once())
             ->method('removeToken')
             ->with($namespace.'token_id')
-            ->will($this->returnValue('REMOVED_TOKEN'));
+            ->willReturn('REMOVED_TOKEN');
 
         $this->assertSame('REMOVED_TOKEN', $manager->removeToken('token_id'));
     }
diff --git a/src/Symfony/Component/Security/Guard/Tests/Authenticator/FormLoginAuthenticatorTest.php b/src/Symfony/Component/Security/Guard/Tests/Authenticator/FormLoginAuthenticatorTest.php
index ca472f87bc5e8..c3983287fc42b 100644
--- a/src/Symfony/Component/Security/Guard/Tests/Authenticator/FormLoginAuthenticatorTest.php
+++ b/src/Symfony/Component/Security/Guard/Tests/Authenticator/FormLoginAuthenticatorTest.php
@@ -77,7 +77,7 @@ public function testAuthenticationSuccessWithSessionButEmpty()
         $this->requestWithSession->getSession()
             ->expects($this->once())
             ->method('get')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $redirectResponse = $this->authenticator->onAuthenticationSuccess($this->requestWithSession, $token, 'providerkey');
 
@@ -96,7 +96,7 @@ public function testAuthenticationSuccessWithSessionAndTarget()
         $this->requestWithSession->getSession()
             ->expects($this->once())
             ->method('get')
-            ->will($this->returnValue(self::CUSTOM_SUCCESS_URL));
+            ->willReturn(self::CUSTOM_SUCCESS_URL);
 
         $redirectResponse = $this->authenticator->onAuthenticationSuccess($this->requestWithSession, $token, 'providerkey');
 
diff --git a/src/Symfony/Component/Security/Guard/Tests/Firewall/GuardAuthenticationListenerTest.php b/src/Symfony/Component/Security/Guard/Tests/Firewall/GuardAuthenticationListenerTest.php
index fa4e9ef623122..7e4d2929b6388 100644
--- a/src/Symfony/Component/Security/Guard/Tests/Firewall/GuardAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Guard/Tests/Firewall/GuardAuthenticationListenerTest.php
@@ -51,7 +51,7 @@ public function testHandleSuccess()
             ->expects($this->once())
             ->method('getCredentials')
             ->with($this->equalTo($this->request))
-            ->will($this->returnValue($credentials));
+            ->willReturn($credentials);
 
         // a clone of the token that should be created internally
         $uniqueGuardKey = 'my_firewall_0';
@@ -61,7 +61,7 @@ public function testHandleSuccess()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->equalTo($nonAuthedToken))
-            ->will($this->returnValue($authenticateToken));
+            ->willReturn($authenticateToken);
 
         $this->guardAuthenticatorHandler
             ->expects($this->once())
@@ -139,18 +139,18 @@ public function testHandleSuccessWithRememberMe()
             ->expects($this->once())
             ->method('getCredentials')
             ->with($this->equalTo($this->request))
-            ->will($this->returnValue(['username' => 'anything_not_empty']));
+            ->willReturn(['username' => 'anything_not_empty']);
 
         $this->authenticationManager
             ->expects($this->once())
             ->method('authenticate')
-            ->will($this->returnValue($authenticateToken));
+            ->willReturn($authenticateToken);
 
         $successResponse = new Response('Success!');
         $this->guardAuthenticatorHandler
             ->expects($this->once())
             ->method('handleAuthenticationSuccess')
-            ->will($this->returnValue($successResponse));
+            ->willReturn($successResponse);
 
         $listener = new GuardAuthenticationListener(
             $this->guardAuthenticatorHandler,
@@ -163,7 +163,7 @@ public function testHandleSuccessWithRememberMe()
         $listener->setRememberMeServices($this->rememberMeServices);
         $authenticator->expects($this->once())
             ->method('supportsRememberMe')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         // should be called - we do have a success Response
         $this->rememberMeServices
             ->expects($this->once())
@@ -219,7 +219,7 @@ public function testLegacyInterfaceNullCredentials()
         $authenticatorA
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         // this is not called
         $this->authenticationManager
@@ -256,7 +256,7 @@ public function testLegacyInterfaceKeepsWorking()
             ->expects($this->once())
             ->method('getCredentials')
             ->with($this->equalTo($this->request))
-            ->will($this->returnValue($credentials));
+            ->willReturn($credentials);
 
         // a clone of the token that should be created internally
         $uniqueGuardKey = 'my_firewall_0';
@@ -266,7 +266,7 @@ public function testLegacyInterfaceKeepsWorking()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->equalTo($nonAuthedToken))
-            ->will($this->returnValue($authenticateToken));
+            ->willReturn($authenticateToken);
 
         $this->guardAuthenticatorHandler
             ->expects($this->once())
@@ -307,11 +307,11 @@ public function testReturnNullToSkipAuth()
         $authenticatorA
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
         $authenticatorB
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         // this is not called
         $this->authenticationManager
@@ -341,7 +341,7 @@ public function testSupportsReturnFalseSkipAuth()
         $authenticator
             ->expects($this->once())
             ->method('supports')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         // this is not called
         $authenticator
@@ -370,13 +370,13 @@ public function testReturnNullFromGetCredentials()
         $authenticator
             ->expects($this->once())
             ->method('supports')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         // this will raise exception
         $authenticator
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $listener = new GuardAuthenticationListener(
             $this->guardAuthenticatorHandler,
@@ -401,13 +401,13 @@ public function testReturnNullFromGetCredentialsTriggersForAbstractGuardAuthenti
         $authenticator
             ->expects($this->once())
             ->method('supports')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         // this will raise exception
         $authenticator
             ->expects($this->once())
             ->method('getCredentials')
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $listener = new GuardAuthenticationListener(
             $this->guardAuthenticatorHandler,
@@ -439,7 +439,7 @@ protected function setUp()
         $this->event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($this->request));
+            ->willReturn($this->request);
 
         $this->logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
         $this->rememberMeServices = $this->getMockBuilder('Symfony\Component\Security\Http\RememberMe\RememberMeServicesInterface')->getMock();
diff --git a/src/Symfony/Component/Security/Guard/Tests/GuardAuthenticatorHandlerTest.php b/src/Symfony/Component/Security/Guard/Tests/GuardAuthenticatorHandlerTest.php
index 9950426de9e2f..3bf204ec7f5c0 100644
--- a/src/Symfony/Component/Security/Guard/Tests/GuardAuthenticatorHandlerTest.php
+++ b/src/Symfony/Component/Security/Guard/Tests/GuardAuthenticatorHandlerTest.php
@@ -54,7 +54,7 @@ public function testHandleAuthenticationSuccess()
         $this->guardAuthenticator->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token, $providerKey)
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new GuardAuthenticatorHandler($this->tokenStorage, $this->dispatcher);
         $actualResponse = $handler->handleAuthenticationSuccess($this->token, $this->request, $this->guardAuthenticator, $providerKey);
@@ -73,7 +73,7 @@ public function testHandleAuthenticationFailure()
         $this->guardAuthenticator->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $authException)
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new GuardAuthenticatorHandler($this->tokenStorage, $this->dispatcher);
         $actualResponse = $handler->handleAuthenticationFailure($authException, $this->request, $this->guardAuthenticator, 'firewall_provider_key');
@@ -90,7 +90,7 @@ public function testHandleAuthenticationClearsToken($tokenClass, $tokenProviderK
             ->getMock();
         $token->expects($this->any())
             ->method('getProviderKey')
-            ->will($this->returnValue($tokenProviderKey));
+            ->willReturn($tokenProviderKey);
 
         $this->tokenStorage->expects($this->never())
             ->method('setToken')
@@ -101,7 +101,7 @@ public function testHandleAuthenticationClearsToken($tokenClass, $tokenProviderK
         $this->guardAuthenticator->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $authException)
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new GuardAuthenticatorHandler($this->tokenStorage, $this->dispatcher);
         $actualResponse = $handler->handleAuthenticationFailure($authException, $this->request, $this->guardAuthenticator, $actualProviderKey);
diff --git a/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php b/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
index a6636dd2f7f36..26f830e500d4c 100644
--- a/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
@@ -41,7 +41,7 @@ public function testAuthenticate()
         $this->preAuthenticationToken->expects($this->exactly(2))
             ->method('getGuardProviderKey')
             // it will return the "1" index, which will match authenticatorB
-            ->will($this->returnValue('my_cool_firewall_1'));
+            ->willReturn('my_cool_firewall_1');
 
         $enteredCredentials = [
             'username' => '_weaverryan_test_user',
@@ -49,7 +49,7 @@ public function testAuthenticate()
         ];
         $this->preAuthenticationToken->expects($this->atLeastOnce())
             ->method('getCredentials')
-            ->will($this->returnValue($enteredCredentials));
+            ->willReturn($enteredCredentials);
 
         // authenticators A and C are never called
         $authenticatorA->expects($this->never())
@@ -61,18 +61,18 @@ public function testAuthenticate()
         $authenticatorB->expects($this->once())
             ->method('getUser')
             ->with($enteredCredentials, $this->userProvider)
-            ->will($this->returnValue($mockedUser));
+            ->willReturn($mockedUser);
         // checkCredentials is called
         $authenticatorB->expects($this->once())
             ->method('checkCredentials')
             ->with($enteredCredentials, $mockedUser)
             // authentication works!
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $authedToken = $this->getMockBuilder(TokenInterface::class)->getMock();
         $authenticatorB->expects($this->once())
             ->method('createAuthenticatedToken')
             ->with($mockedUser, $providerKey)
-            ->will($this->returnValue($authedToken));
+            ->willReturn($authedToken);
 
         // user checker should be called
         $this->userChecker->expects($this->once())
@@ -103,7 +103,7 @@ public function testLegacyAuthenticate()
         $this->preAuthenticationToken->expects($this->exactly(2))
             ->method('getGuardProviderKey')
             // it will return the "1" index, which will match authenticatorB
-            ->will($this->returnValue('my_cool_firewall_1'));
+            ->willReturn('my_cool_firewall_1');
 
         $enteredCredentials = [
             'username' => '_weaverryan_test_user',
@@ -111,7 +111,7 @@ public function testLegacyAuthenticate()
         ];
         $this->preAuthenticationToken->expects($this->atLeastOnce())
             ->method('getCredentials')
-            ->will($this->returnValue($enteredCredentials));
+            ->willReturn($enteredCredentials);
 
         // authenticators A and C are never called
         $authenticatorA->expects($this->never())
@@ -123,18 +123,18 @@ public function testLegacyAuthenticate()
         $authenticatorB->expects($this->once())
             ->method('getUser')
             ->with($enteredCredentials, $this->userProvider)
-            ->will($this->returnValue($mockedUser));
+            ->willReturn($mockedUser);
         // checkCredentials is called
         $authenticatorB->expects($this->once())
             ->method('checkCredentials')
             ->with($enteredCredentials, $mockedUser)
             // authentication works!
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $authedToken = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $authenticatorB->expects($this->once())
             ->method('createAuthenticatedToken')
             ->with($mockedUser, $providerKey)
-            ->will($this->returnValue($authedToken));
+            ->willReturn($authedToken);
 
         // user checker should be called
         $this->userChecker->expects($this->once())
@@ -162,21 +162,21 @@ public function testCheckCredentialsReturningNonTrueFailsAuthentication()
         $this->preAuthenticationToken->expects($this->any())
             ->method('getGuardProviderKey')
             // the 0 index, to match the only authenticator
-            ->will($this->returnValue('my_uncool_firewall_0'));
+            ->willReturn('my_uncool_firewall_0');
 
         $this->preAuthenticationToken->expects($this->atLeastOnce())
             ->method('getCredentials')
-            ->will($this->returnValue('non-null-value'));
+            ->willReturn('non-null-value');
 
         $mockedUser = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock();
         $authenticator->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($mockedUser));
+            ->willReturn($mockedUser);
         // checkCredentials is called
         $authenticator->expects($this->once())
             ->method('checkCredentials')
             // authentication fails :(
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $provider = new GuardAuthenticationProvider([$authenticator], $this->userProvider, $providerKey, $this->userChecker);
         $provider->authenticate($this->preAuthenticationToken);
diff --git a/src/Symfony/Component/Security/Http/Tests/AccessMapTest.php b/src/Symfony/Component/Security/Http/Tests/AccessMapTest.php
index 8ae9581e2c848..1f5356ba9ee58 100644
--- a/src/Symfony/Component/Security/Http/Tests/AccessMapTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/AccessMapTest.php
@@ -45,7 +45,7 @@ private function getRequestMatcher($request, $matches)
         $requestMatcher = $this->getMockBuilder('Symfony\Component\HttpFoundation\RequestMatcherInterface')->getMock();
         $requestMatcher->expects($this->once())
             ->method('matches')->with($request)
-            ->will($this->returnValue($matches));
+            ->willReturn($matches);
 
         return $requestMatcher;
     }
diff --git a/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationFailureHandlerTest.php b/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationFailureHandlerTest.php
index a9c18f3475d5c..a71ad179a3551 100644
--- a/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationFailureHandlerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationFailureHandlerTest.php
@@ -34,7 +34,7 @@ protected function setUp()
 
         $this->session = $this->getMockBuilder('Symfony\Component\HttpFoundation\Session\SessionInterface')->getMock();
         $this->request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock();
-        $this->request->expects($this->any())->method('getSession')->will($this->returnValue($this->session));
+        $this->request->expects($this->any())->method('getSession')->willReturn($this->session);
         $this->exception = $this->getMockBuilder('Symfony\Component\Security\Core\Exception\AuthenticationException')->setMethods(['getMessage'])->getMock();
     }
 
@@ -47,12 +47,12 @@ public function testForward()
             ->method('set')->with(Security::AUTHENTICATION_ERROR, $this->exception);
         $this->httpUtils->expects($this->once())
             ->method('createRequest')->with($this->request, '/login')
-            ->will($this->returnValue($subRequest));
+            ->willReturn($subRequest);
 
         $response = new Response();
         $this->httpKernel->expects($this->once())
             ->method('handle')->with($subRequest, HttpKernelInterface::SUB_REQUEST)
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new DefaultAuthenticationFailureHandler($this->httpKernel, $this->httpUtils, $options, $this->logger);
         $result = $handler->onAuthenticationFailure($this->request, $this->exception);
@@ -65,7 +65,7 @@ public function testRedirect()
         $response = new Response();
         $this->httpUtils->expects($this->once())
             ->method('createRedirectResponse')->with($this->request, '/login')
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new DefaultAuthenticationFailureHandler($this->httpKernel, $this->httpUtils, [], $this->logger);
         $result = $handler->onAuthenticationFailure($this->request, $this->exception);
@@ -92,7 +92,7 @@ public function testExceptionIsPassedInRequestOnForward()
 
         $this->httpUtils->expects($this->once())
             ->method('createRequest')->with($this->request, '/login')
-            ->will($this->returnValue($subRequest));
+            ->willReturn($subRequest);
 
         $this->session->expects($this->never())->method('set');
 
@@ -117,7 +117,7 @@ public function testForwardIsLogged()
 
         $this->httpUtils->expects($this->once())
             ->method('createRequest')->with($this->request, '/login')
-            ->will($this->returnValue($this->getRequest()));
+            ->willReturn($this->getRequest());
 
         $this->logger
             ->expects($this->once())
@@ -143,7 +143,7 @@ public function testFailurePathCanBeOverwrittenWithRequest()
     {
         $this->request->expects($this->once())
             ->method('get')->with('_failure_path')
-            ->will($this->returnValue('/auth/login'));
+            ->willReturn('/auth/login');
 
         $this->httpUtils->expects($this->once())
             ->method('createRedirectResponse')->with($this->request, '/auth/login');
@@ -156,7 +156,7 @@ public function testFailurePathCanBeOverwrittenWithNestedAttributeInRequest()
     {
         $this->request->expects($this->once())
             ->method('get')->with('_failure_path')
-            ->will($this->returnValue(['value' => '/auth/login']));
+            ->willReturn(['value' => '/auth/login']);
 
         $this->httpUtils->expects($this->once())
             ->method('createRedirectResponse')->with($this->request, '/auth/login');
@@ -171,7 +171,7 @@ public function testFailurePathParameterCanBeOverwritten()
 
         $this->request->expects($this->once())
             ->method('get')->with('_my_failure_path')
-            ->will($this->returnValue('/auth/login'));
+            ->willReturn('/auth/login');
 
         $this->httpUtils->expects($this->once())
             ->method('createRedirectResponse')->with($this->request, '/auth/login');
diff --git a/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationSuccessHandlerTest.php b/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationSuccessHandlerTest.php
index 531d49227f2c2..8f0ba0728c874 100644
--- a/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationSuccessHandlerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Authentication/DefaultAuthenticationSuccessHandlerTest.php
@@ -24,7 +24,7 @@ class DefaultAuthenticationSuccessHandlerTest extends TestCase
     public function testRequestRedirections(Request $request, $options, $redirectedUrl)
     {
         $urlGenerator = $this->getMockBuilder('Symfony\Component\Routing\Generator\UrlGeneratorInterface')->getMock();
-        $urlGenerator->expects($this->any())->method('generate')->will($this->returnValue('http://localhost/login'));
+        $urlGenerator->expects($this->any())->method('generate')->willReturn('http://localhost/login');
         $httpUtils = new HttpUtils($urlGenerator);
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $handler = new DefaultAuthenticationSuccessHandler($httpUtils, $options);
@@ -37,7 +37,7 @@ public function testRequestRedirections(Request $request, $options, $redirectedU
     public function getRequestRedirections()
     {
         $session = $this->getMockBuilder('Symfony\Component\HttpFoundation\Session\SessionInterface')->getMock();
-        $session->expects($this->once())->method('get')->with('_security.admin.target_path')->will($this->returnValue('/admin/dashboard'));
+        $session->expects($this->once())->method('get')->with('_security.admin.target_path')->willReturn('/admin/dashboard');
         $session->expects($this->once())->method('remove')->with('_security.admin.target_path');
         $requestWithSession = Request::create('/');
         $requestWithSession->setSession($session);
diff --git a/src/Symfony/Component/Security/Http/Tests/Authentication/SimpleAuthenticationHandlerTest.php b/src/Symfony/Component/Security/Http/Tests/Authentication/SimpleAuthenticationHandlerTest.php
index 4f73e5f44cdfa..70923ae31806e 100644
--- a/src/Symfony/Component/Security/Http/Tests/Authentication/SimpleAuthenticationHandlerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Authentication/SimpleAuthenticationHandlerTest.php
@@ -53,7 +53,7 @@ public function testOnAuthenticationSuccessFallsBackToDefaultHandlerIfSimpleIsNo
         $this->successHandler->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationSuccess($this->request, $this->token);
@@ -70,7 +70,7 @@ public function testOnAuthenticationSuccessCallsSimpleAuthenticator()
         $authenticator->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationSuccess($this->request, $this->token);
@@ -91,7 +91,7 @@ public function testOnAuthenticationSuccessThrowsAnExceptionIfNonResponseIsRetur
         $authenticator->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token)
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $handler->onAuthenticationSuccess($this->request, $this->token);
@@ -102,13 +102,13 @@ public function testOnAuthenticationSuccessFallsBackToDefaultHandlerIfNullIsRetu
         $this->successHandler->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $authenticator = $this->getMockForAbstractClass('Symfony\Component\Security\Http\Tests\TestSuccessHandlerInterface');
         $authenticator->expects($this->once())
             ->method('onAuthenticationSuccess')
             ->with($this->request, $this->token)
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationSuccess($this->request, $this->token);
@@ -123,7 +123,7 @@ public function testOnAuthenticationFailureFallsBackToDefaultHandlerIfSimpleIsNo
         $this->failureHandler->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $this->authenticationException)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationFailure($this->request, $this->authenticationException);
@@ -140,7 +140,7 @@ public function testOnAuthenticationFailureCallsSimpleAuthenticator()
         $authenticator->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $this->authenticationException)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationFailure($this->request, $this->authenticationException);
@@ -161,7 +161,7 @@ public function testOnAuthenticationFailureThrowsAnExceptionIfNonResponseIsRetur
         $authenticator->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $this->authenticationException)
-            ->will($this->returnValue(new \stdClass()));
+            ->willReturn(new \stdClass());
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $handler->onAuthenticationFailure($this->request, $this->authenticationException);
@@ -172,13 +172,13 @@ public function testOnAuthenticationFailureFallsBackToDefaultHandlerIfNullIsRetu
         $this->failureHandler->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $this->authenticationException)
-            ->will($this->returnValue($this->response));
+            ->willReturn($this->response);
 
         $authenticator = $this->getMockForAbstractClass('Symfony\Component\Security\Http\Tests\TestFailureHandlerInterface');
         $authenticator->expects($this->once())
             ->method('onAuthenticationFailure')
             ->with($this->request, $this->authenticationException)
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $handler = new SimpleAuthenticationHandler($authenticator, $this->successHandler, $this->failureHandler);
         $result = $handler->onAuthenticationFailure($this->request, $this->authenticationException);
diff --git a/src/Symfony/Component/Security/Http/Tests/EntryPoint/FormAuthenticationEntryPointTest.php b/src/Symfony/Component/Security/Http/Tests/EntryPoint/FormAuthenticationEntryPointTest.php
index 2e43f4ba63d65..999ff728bf461 100644
--- a/src/Symfony/Component/Security/Http/Tests/EntryPoint/FormAuthenticationEntryPointTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/EntryPoint/FormAuthenticationEntryPointTest.php
@@ -29,7 +29,7 @@ public function testStart()
             ->expects($this->once())
             ->method('createRedirectResponse')
             ->with($this->equalTo($request), $this->equalTo('/the/login/path'))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $entryPoint = new FormAuthenticationEntryPoint($httpKernel, $httpUtils, '/the/login/path', false);
@@ -48,7 +48,7 @@ public function testStartWithUseForward()
             ->expects($this->once())
             ->method('createRequest')
             ->with($this->equalTo($request), $this->equalTo('/the/login/path'))
-            ->will($this->returnValue($subRequest))
+            ->willReturn($subRequest)
         ;
 
         $httpKernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
@@ -56,7 +56,7 @@ public function testStartWithUseForward()
             ->expects($this->once())
             ->method('handle')
             ->with($this->equalTo($subRequest), $this->equalTo(HttpKernelInterface::SUB_REQUEST))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $entryPoint = new FormAuthenticationEntryPoint($httpKernel, $httpUtils, '/the/login/path', true);
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/AbstractPreAuthenticatedListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/AbstractPreAuthenticatedListenerTest.php
index 44bbf4423be5b..c4ccdd6a69b2e 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/AbstractPreAuthenticatedListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/AbstractPreAuthenticatedListenerTest.php
@@ -31,7 +31,7 @@ public function testHandleWithValidValues()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $tokenStorage
             ->expects($this->once())
@@ -44,7 +44,7 @@ public function testHandleWithValidValues()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->isInstanceOf('Symfony\Component\Security\Core\Authentication\Token\PreAuthenticatedToken'))
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $listener = $this->getMockForAbstractClass('Symfony\Component\Security\Http\Firewall\AbstractPreAuthenticatedListener', [
@@ -55,13 +55,13 @@ public function testHandleWithValidValues()
         $listener
             ->expects($this->once())
             ->method('getPreAuthenticatedData')
-            ->will($this->returnValue($userCredentials));
+            ->willReturn($userCredentials);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -77,7 +77,7 @@ public function testHandleWhenAuthenticationFails()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $tokenStorage
             ->expects($this->never())
@@ -101,13 +101,13 @@ public function testHandleWhenAuthenticationFails()
         $listener
             ->expects($this->once())
             ->method('getPreAuthenticatedData')
-            ->will($this->returnValue($userCredentials));
+            ->willReturn($userCredentials);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -125,7 +125,7 @@ public function testHandleWhenAuthenticationFailsWithDifferentToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
         $tokenStorage
             ->expects($this->never())
@@ -149,13 +149,13 @@ public function testHandleWhenAuthenticationFailsWithDifferentToken()
         $listener
             ->expects($this->once())
             ->method('getPreAuthenticatedData')
-            ->will($this->returnValue($userCredentials));
+            ->willReturn($userCredentials);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -173,7 +173,7 @@ public function testHandleWithASimilarAuthenticatedToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $authenticationManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface')->getMock();
@@ -190,13 +190,13 @@ public function testHandleWithASimilarAuthenticatedToken()
         $listener
             ->expects($this->once())
             ->method('getPreAuthenticatedData')
-            ->will($this->returnValue($userCredentials));
+            ->willReturn($userCredentials);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -214,7 +214,7 @@ public function testHandleWithAnInvalidSimilarToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
         $tokenStorage
             ->expects($this->once())
@@ -239,13 +239,13 @@ public function testHandleWithAnInvalidSimilarToken()
         $listener
             ->expects($this->once())
             ->method('getPreAuthenticatedData')
-            ->will($this->returnValue($userCredentials));
+            ->willReturn($userCredentials);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/AccessListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/AccessListenerTest.php
index 92b2270877fbc..0bb27258befe0 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/AccessListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/AccessListenerTest.php
@@ -28,21 +28,21 @@ public function testHandleWhenTheAccessDecisionManagerDecidesToRefuseAccess()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([['foo' => 'bar'], null]))
+            ->willReturn([['foo' => 'bar'], null])
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token
             ->expects($this->any())
             ->method('isAuthenticated')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $tokenStorage = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface')->getMock();
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $accessDecisionManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authorization\AccessDecisionManagerInterface')->getMock();
@@ -50,7 +50,7 @@ public function testHandleWhenTheAccessDecisionManagerDecidesToRefuseAccess()
             ->expects($this->once())
             ->method('decide')
             ->with($this->equalTo($token), $this->equalTo(['foo' => 'bar']), $this->equalTo($request))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $listener = new AccessListener(
@@ -64,7 +64,7 @@ public function testHandleWhenTheAccessDecisionManagerDecidesToRefuseAccess()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -79,21 +79,21 @@ public function testHandleWhenTheTokenIsNotAuthenticated()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([['foo' => 'bar'], null]))
+            ->willReturn([['foo' => 'bar'], null])
         ;
 
         $notAuthenticatedToken = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $notAuthenticatedToken
             ->expects($this->any())
             ->method('isAuthenticated')
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $authenticatedToken = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $authenticatedToken
             ->expects($this->any())
             ->method('isAuthenticated')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $authManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface')->getMock();
@@ -101,14 +101,14 @@ public function testHandleWhenTheTokenIsNotAuthenticated()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->equalTo($notAuthenticatedToken))
-            ->will($this->returnValue($authenticatedToken))
+            ->willReturn($authenticatedToken)
         ;
 
         $tokenStorage = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface')->getMock();
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($notAuthenticatedToken))
+            ->willReturn($notAuthenticatedToken)
         ;
         $tokenStorage
             ->expects($this->once())
@@ -121,7 +121,7 @@ public function testHandleWhenTheTokenIsNotAuthenticated()
             ->expects($this->once())
             ->method('decide')
             ->with($this->equalTo($authenticatedToken), $this->equalTo(['foo' => 'bar']), $this->equalTo($request))
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $listener = new AccessListener(
@@ -135,7 +135,7 @@ public function testHandleWhenTheTokenIsNotAuthenticated()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -150,7 +150,7 @@ public function testHandleWhenThereIsNoAccessMapEntryMatchingTheRequest()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([null, null]))
+            ->willReturn([null, null])
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
@@ -163,7 +163,7 @@ public function testHandleWhenThereIsNoAccessMapEntryMatchingTheRequest()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $listener = new AccessListener(
@@ -177,7 +177,7 @@ public function testHandleWhenThereIsNoAccessMapEntryMatchingTheRequest()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -192,7 +192,7 @@ public function testHandleWhenTheSecurityTokenStorageHasNoToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $listener = new AccessListener(
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php
index f6f36415d37e1..15b151a5cf828 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php
@@ -23,7 +23,7 @@ public function testHandleWithTokenStorageHavingAToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock())
         ;
         $tokenStorage
             ->expects($this->never())
@@ -46,7 +46,7 @@ public function testHandleWithTokenStorageHavingNoToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $anonymousToken = new AnonymousToken('TheSecret', 'anon.', []);
@@ -58,7 +58,7 @@ public function testHandleWithTokenStorageHavingNoToken()
             ->with($this->callback(function ($token) {
                 return 'TheSecret' === $token->getSecret();
             }))
-            ->will($this->returnValue($anonymousToken))
+            ->willReturn($anonymousToken)
         ;
 
         $tokenStorage
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/BasicAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/BasicAuthenticationListenerTest.php
index 2eec46b1d16a6..e331542369f53 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/BasicAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/BasicAuthenticationListenerTest.php
@@ -34,7 +34,7 @@ public function testHandleWithValidUsernameAndPasswordServerParameters()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $tokenStorage
             ->expects($this->once())
@@ -47,7 +47,7 @@ public function testHandleWithValidUsernameAndPasswordServerParameters()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->isInstanceOf('Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken'))
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $listener = new BasicAuthenticationListener(
@@ -61,7 +61,7 @@ public function testHandleWithValidUsernameAndPasswordServerParameters()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -80,7 +80,7 @@ public function testHandleWhenAuthenticationFails()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $tokenStorage
             ->expects($this->never())
@@ -94,7 +94,7 @@ public function testHandleWhenAuthenticationFails()
             ->expects($this->any())
             ->method('start')
             ->with($this->equalTo($request), $this->isInstanceOf('Symfony\Component\Security\Core\Exception\AuthenticationException'))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $listener = new BasicAuthenticationListener(
@@ -108,7 +108,7 @@ public function testHandleWhenAuthenticationFails()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->once())
@@ -140,7 +140,7 @@ public function testHandleWithNoUsernameServerParameter()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -156,7 +156,7 @@ public function testHandleWithASimilarAuthenticatedToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $authenticationManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface')->getMock();
@@ -176,7 +176,7 @@ public function testHandleWithASimilarAuthenticatedToken()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -209,7 +209,7 @@ public function testHandleWithADifferentAuthenticatedToken()
         $tokenStorage
             ->expects($this->any())
             ->method('getToken')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
         $tokenStorage
             ->expects($this->never())
@@ -223,7 +223,7 @@ public function testHandleWithADifferentAuthenticatedToken()
             ->expects($this->any())
             ->method('start')
             ->with($this->equalTo($request), $this->isInstanceOf('Symfony\Component\Security\Core\Exception\AuthenticationException'))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $listener = new BasicAuthenticationListener(
@@ -237,7 +237,7 @@ public function testHandleWithADifferentAuthenticatedToken()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->once())
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/ChannelListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/ChannelListenerTest.php
index 3740faec8ba8e..3511c629c1d4e 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/ChannelListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/ChannelListenerTest.php
@@ -23,7 +23,7 @@ public function testHandleWithNotSecuredRequestAndHttpChannel()
         $request
             ->expects($this->any())
             ->method('isSecure')
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $accessMap = $this->getMockBuilder('Symfony\Component\Security\Http\AccessMapInterface')->getMock();
@@ -31,7 +31,7 @@ public function testHandleWithNotSecuredRequestAndHttpChannel()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([[], 'http']))
+            ->willReturn([[], 'http'])
         ;
 
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
@@ -44,7 +44,7 @@ public function testHandleWithNotSecuredRequestAndHttpChannel()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->never())
@@ -61,7 +61,7 @@ public function testHandleWithSecuredRequestAndHttpsChannel()
         $request
             ->expects($this->any())
             ->method('isSecure')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $accessMap = $this->getMockBuilder('Symfony\Component\Security\Http\AccessMapInterface')->getMock();
@@ -69,7 +69,7 @@ public function testHandleWithSecuredRequestAndHttpsChannel()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([[], 'https']))
+            ->willReturn([[], 'https'])
         ;
 
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
@@ -82,7 +82,7 @@ public function testHandleWithSecuredRequestAndHttpsChannel()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->never())
@@ -99,7 +99,7 @@ public function testHandleWithNotSecuredRequestAndHttpsChannel()
         $request
             ->expects($this->any())
             ->method('isSecure')
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $response = new Response();
@@ -109,7 +109,7 @@ public function testHandleWithNotSecuredRequestAndHttpsChannel()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([[], 'https']))
+            ->willReturn([[], 'https'])
         ;
 
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
@@ -117,14 +117,14 @@ public function testHandleWithNotSecuredRequestAndHttpsChannel()
             ->expects($this->once())
             ->method('start')
             ->with($this->equalTo($request))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->once())
@@ -142,7 +142,7 @@ public function testHandleWithSecuredRequestAndHttpChannel()
         $request
             ->expects($this->any())
             ->method('isSecure')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $response = new Response();
@@ -152,7 +152,7 @@ public function testHandleWithSecuredRequestAndHttpChannel()
             ->expects($this->any())
             ->method('getPatterns')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([[], 'http']))
+            ->willReturn([[], 'http'])
         ;
 
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
@@ -160,14 +160,14 @@ public function testHandleWithSecuredRequestAndHttpChannel()
             ->expects($this->once())
             ->method('start')
             ->with($this->equalTo($request))
-            ->will($this->returnValue($response))
+            ->willReturn($response)
         ;
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')->disableOriginalConstructor()->getMock();
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
         $event
             ->expects($this->once())
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/ContextListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/ContextListenerTest.php
index 8df2f40acd116..250b26cfef6ec 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/ContextListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/ContextListenerTest.php
@@ -151,17 +151,17 @@ public function testInvalidTokenInSession($token)
 
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request));
+            ->willReturn($request);
         $request->expects($this->any())
             ->method('hasPreviousSession')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $request->expects($this->any())
             ->method('getSession')
-            ->will($this->returnValue($session));
+            ->willReturn($session);
         $session->expects($this->any())
             ->method('get')
             ->with('_security_key123')
-            ->will($this->returnValue($token));
+            ->willReturn($token);
         $tokenStorage->expects($this->once())
             ->method('setToken')
             ->with(null);
@@ -193,10 +193,10 @@ public function testHandleAddsKernelResponseListener()
 
         $event->expects($this->any())
             ->method('isMasterRequest')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock()));
+            ->willReturn($this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock());
 
         $dispatcher->expects($this->once())
             ->method('addListener')
@@ -218,14 +218,14 @@ public function testOnKernelResponseListenerRemovesItself()
         $request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock();
         $request->expects($this->any())
             ->method('hasSession')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $event->expects($this->any())
             ->method('isMasterRequest')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request));
+            ->willReturn($request);
 
         $dispatcher->expects($this->once())
             ->method('removeListener')
@@ -237,12 +237,12 @@ public function testOnKernelResponseListenerRemovesItself()
     public function testHandleRemovesTokenIfNoPreviousSessionWasFound()
     {
         $request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock();
-        $request->expects($this->any())->method('hasPreviousSession')->will($this->returnValue(false));
+        $request->expects($this->any())->method('hasPreviousSession')->willReturn(false);
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')
             ->disableOriginalConstructor()
             ->getMock();
-        $event->expects($this->any())->method('getRequest')->will($this->returnValue($request));
+        $event->expects($this->any())->method('getRequest')->willReturn($request);
 
         $tokenStorage = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface')->getMock();
         $tokenStorage->expects($this->once())->method('setToken')->with(null);
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/DigestAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/DigestAuthenticationListenerTest.php
index b5378902ea9f7..5dbd2cd0feb5a 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/DigestAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/DigestAuthenticationListenerTest.php
@@ -47,7 +47,7 @@ public function testHandleWithValidDigest()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $tokenStorage
             ->expects($this->once())
@@ -64,7 +64,7 @@ public function testHandleWithValidDigest()
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/ExceptionListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/ExceptionListenerTest.php
index 53fedebcad705..1dda0ab968c78 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/ExceptionListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/ExceptionListenerTest.php
@@ -77,7 +77,7 @@ public function testExceptionWhenEntryPointReturnsBadValue()
         $event = $this->createEvent(new AuthenticationException());
 
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
-        $entryPoint->expects($this->once())->method('start')->will($this->returnValue('NOT A RESPONSE'));
+        $entryPoint->expects($this->once())->method('start')->willReturn('NOT A RESPONSE');
 
         $listener = $this->createExceptionListener(null, null, null, $entryPoint);
         $listener->onKernelException($event);
@@ -106,12 +106,12 @@ public function testAccessDeniedExceptionFullFledgedAndWithoutAccessDeniedHandle
     public function testAccessDeniedExceptionFullFledgedAndWithoutAccessDeniedHandlerAndWithErrorPage(\Exception $exception, \Exception $eventException = null)
     {
         $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
-        $kernel->expects($this->once())->method('handle')->will($this->returnValue(new Response('Unauthorized', 401)));
+        $kernel->expects($this->once())->method('handle')->willReturn(new Response('Unauthorized', 401));
 
         $event = $this->createEvent($exception, $kernel);
 
         $httpUtils = $this->getMockBuilder('Symfony\Component\Security\Http\HttpUtils')->getMock();
-        $httpUtils->expects($this->once())->method('createRequest')->will($this->returnValue(Request::create('/error')));
+        $httpUtils->expects($this->once())->method('createRequest')->willReturn(Request::create('/error'));
 
         $listener = $this->createExceptionListener(null, $this->createTrustResolver(true), $httpUtils, null, '/error');
         $listener->onKernelException($event);
@@ -131,7 +131,7 @@ public function testAccessDeniedExceptionFullFledgedAndWithAccessDeniedHandlerAn
         $event = $this->createEvent($exception);
 
         $accessDeniedHandler = $this->getMockBuilder('Symfony\Component\Security\Http\Authorization\AccessDeniedHandlerInterface')->getMock();
-        $accessDeniedHandler->expects($this->once())->method('handle')->will($this->returnValue(new Response('error')));
+        $accessDeniedHandler->expects($this->once())->method('handle')->willReturn(new Response('error'));
 
         $listener = $this->createExceptionListener(null, $this->createTrustResolver(true), null, null, null, $accessDeniedHandler);
         $listener->onKernelException($event);
@@ -148,7 +148,7 @@ public function testAccessDeniedExceptionNotFullFledged(\Exception $exception, \
         $event = $this->createEvent($exception);
 
         $tokenStorage = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface')->getMock();
-        $tokenStorage->expects($this->once())->method('getToken')->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock()));
+        $tokenStorage->expects($this->once())->method('getToken')->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock());
 
         $listener = $this->createExceptionListener($tokenStorage, $this->createTrustResolver(false), null, $this->createEntryPoint());
         $listener->onKernelException($event);
@@ -171,7 +171,7 @@ public function getAccessDeniedExceptionProvider()
     private function createEntryPoint(Response $response = null)
     {
         $entryPoint = $this->getMockBuilder('Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface')->getMock();
-        $entryPoint->expects($this->once())->method('start')->will($this->returnValue($response ?: new Response('OK')));
+        $entryPoint->expects($this->once())->method('start')->willReturn($response ?: new Response('OK'));
 
         return $entryPoint;
     }
@@ -179,7 +179,7 @@ private function createEntryPoint(Response $response = null)
     private function createTrustResolver($fullFledged)
     {
         $trustResolver = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolverInterface')->getMock();
-        $trustResolver->expects($this->once())->method('isFullFledged')->will($this->returnValue($fullFledged));
+        $trustResolver->expects($this->once())->method('isFullFledged')->willReturn($fullFledged);
 
         return $trustResolver;
     }
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
index fbcea3d738e70..3796f871562c6 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
@@ -30,7 +30,7 @@ public function testHandleUnmatchedPath()
         $httpUtils->expects($this->once())
             ->method('checkRequestPath')
             ->with($request, $options['logout_path'])
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $listener->handle($event);
     }
@@ -49,20 +49,20 @@ public function testHandleMatchedPathWithSuccessHandlerAndCsrfValidation()
         $httpUtils->expects($this->once())
             ->method('checkRequestPath')
             ->with($request, $options['logout_path'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $tokenManager->expects($this->once())
             ->method('isTokenValid')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $successHandler->expects($this->once())
             ->method('onLogoutSuccess')
             ->with($request)
-            ->will($this->returnValue($response = new Response()));
+            ->willReturn($response = new Response());
 
         $tokenStorage->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token = $this->getToken()));
+            ->willReturn($token = $this->getToken());
 
         $handler = $this->getHandler();
         $handler->expects($this->once())
@@ -93,16 +93,16 @@ public function testHandleMatchedPathWithoutSuccessHandlerAndCsrfValidation()
         $httpUtils->expects($this->once())
             ->method('checkRequestPath')
             ->with($request, $options['logout_path'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $successHandler->expects($this->once())
             ->method('onLogoutSuccess')
             ->with($request)
-            ->will($this->returnValue($response = new Response()));
+            ->willReturn($response = new Response());
 
         $tokenStorage->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($token = $this->getToken()));
+            ->willReturn($token = $this->getToken());
 
         $handler = $this->getHandler();
         $handler->expects($this->once())
@@ -136,12 +136,12 @@ public function testSuccessHandlerReturnsNonResponse()
         $httpUtils->expects($this->once())
             ->method('checkRequestPath')
             ->with($request, $options['logout_path'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $successHandler->expects($this->once())
             ->method('onLogoutSuccess')
             ->with($request)
-            ->will($this->returnValue(null));
+            ->willReturn(null);
 
         $listener->handle($event);
     }
@@ -162,11 +162,11 @@ public function testCsrfValidationFails()
         $httpUtils->expects($this->once())
             ->method('checkRequestPath')
             ->with($request, $options['logout_path'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $tokenManager->expects($this->once())
             ->method('isTokenValid')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $listener->handle($event);
     }
@@ -189,7 +189,7 @@ private function getGetResponseEvent()
 
         $event->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request = new Request()));
+            ->willReturn($request = new Request());
 
         return [$event, $request];
     }
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
index 686c7231e6899..57d297103ec80 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
@@ -26,7 +26,7 @@ public function testOnCoreSecurityDoesNotTryToPopulateNonEmptyTokenStorage()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock())
         ;
 
         $tokenStorage
@@ -44,20 +44,20 @@ public function testOnCoreSecurityDoesNothingWhenNoCookieIsSet()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $event = $this->getGetResponseEvent();
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue(new Request()))
+            ->willReturn(new Request())
         ;
 
         $this->assertNull($listener->handle($event));
@@ -72,13 +72,13 @@ public function testOnCoreSecurityIgnoresAuthenticationExceptionThrownByAuthenti
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock())
         ;
 
         $service
@@ -97,7 +97,7 @@ public function testOnCoreSecurityIgnoresAuthenticationExceptionThrownByAuthenti
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -114,13 +114,13 @@ public function testOnCoreSecurityIgnoresAuthenticationOptionallyRethrowsExcepti
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock())
         ;
 
         $service
@@ -139,7 +139,7 @@ public function testOnCoreSecurityIgnoresAuthenticationOptionallyRethrowsExcepti
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue(new Request()))
+            ->willReturn(new Request())
         ;
 
         $listener->handle($event);
@@ -152,7 +152,7 @@ public function testOnCoreSecurityAuthenticationExceptionDuringAutoLoginTriggers
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $exception = new AuthenticationException('Authentication failed.');
@@ -176,7 +176,7 @@ public function testOnCoreSecurityAuthenticationExceptionDuringAutoLoginTriggers
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue(new Request()))
+            ->willReturn(new Request())
         ;
 
         $listener->handle($event);
@@ -189,14 +189,14 @@ public function testOnCoreSecurity()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $tokenStorage
@@ -208,14 +208,14 @@ public function testOnCoreSecurity()
         $manager
             ->expects($this->once())
             ->method('authenticate')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $event = $this->getGetResponseEvent();
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue(new Request()))
+            ->willReturn(new Request())
         ;
 
         $listener->handle($event);
@@ -228,14 +228,14 @@ public function testSessionStrategy()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $tokenStorage
@@ -247,40 +247,40 @@ public function testSessionStrategy()
         $manager
             ->expects($this->once())
             ->method('authenticate')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $session = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Session\SessionInterface')->getMock();
         $session
             ->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $request = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Request')->getMock();
         $request
             ->expects($this->once())
             ->method('hasSession')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $request
             ->expects($this->once())
             ->method('getSession')
-            ->will($this->returnValue($session))
+            ->willReturn($session)
         ;
 
         $event = $this->getGetResponseEvent();
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $sessionStrategy
             ->expects($this->once())
             ->method('onAuthentication')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $listener->handle($event);
@@ -293,14 +293,14 @@ public function testSessionIsMigratedByDefault()
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $tokenStorage
@@ -312,14 +312,14 @@ public function testSessionIsMigratedByDefault()
         $manager
             ->expects($this->once())
             ->method('authenticate')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $session = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Session\SessionInterface')->getMock();
         $session
             ->expects($this->once())
             ->method('isStarted')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $session
             ->expects($this->once())
@@ -330,20 +330,20 @@ public function testSessionIsMigratedByDefault()
         $request
             ->expects($this->any())
             ->method('hasSession')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $request
             ->expects($this->any())
             ->method('getSession')
-            ->will($this->returnValue($session))
+            ->willReturn($session)
         ;
 
         $event = $this->getGetResponseEvent();
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -356,14 +356,14 @@ public function testOnCoreSecurityInteractiveLoginEventIsDispatchedIfDispatcherI
         $tokenStorage
             ->expects($this->once())
             ->method('getToken')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $service
             ->expects($this->once())
             ->method('autoLogin')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $tokenStorage
@@ -375,7 +375,7 @@ public function testOnCoreSecurityInteractiveLoginEventIsDispatchedIfDispatcherI
         $manager
             ->expects($this->once())
             ->method('authenticate')
-            ->will($this->returnValue($token))
+            ->willReturn($token)
         ;
 
         $event = $this->getGetResponseEvent();
@@ -383,7 +383,7 @@ public function testOnCoreSecurityInteractiveLoginEventIsDispatchedIfDispatcherI
         $event
             ->expects($this->once())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $dispatcher
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/SimplePreAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/SimplePreAuthenticationListenerTest.php
index 8739e1b62abb3..1584b66ecee44 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/SimplePreAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/SimplePreAuthenticationListenerTest.php
@@ -40,7 +40,7 @@ public function testHandle()
             ->expects($this->once())
             ->method('authenticate')
             ->with($this->equalTo($this->token))
-            ->will($this->returnValue($this->token))
+            ->willReturn($this->token)
         ;
 
         $simpleAuthenticator = $this->getMockBuilder('Symfony\Component\Security\Http\Authentication\SimplePreAuthenticatorInterface')->getMock();
@@ -48,7 +48,7 @@ public function testHandle()
             ->expects($this->once())
             ->method('createToken')
             ->with($this->equalTo($this->request), $this->equalTo('secured_area'))
-            ->will($this->returnValue($this->token))
+            ->willReturn($this->token)
         ;
 
         $loginEvent = new InteractiveLoginEvent($this->request, $this->token);
@@ -85,7 +85,7 @@ public function testHandlecatchAuthenticationException()
             ->expects($this->once())
             ->method('createToken')
             ->with($this->equalTo($this->request), $this->equalTo('secured_area'))
-            ->will($this->returnValue($this->token))
+            ->willReturn($this->token)
         ;
 
         $listener = new SimplePreAuthenticationListener($this->tokenStorage, $this->authenticationManager, 'secured_area', $simpleAuthenticator, $this->logger, $this->dispatcher);
@@ -108,7 +108,7 @@ protected function setUp()
         $this->event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($this->request))
+            ->willReturn($this->request)
         ;
 
         $this->logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/SwitchUserListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/SwitchUserListenerTest.php
index 709bc4c862f9e..2d22a91d6bdeb 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/SwitchUserListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/SwitchUserListenerTest.php
@@ -167,7 +167,7 @@ public function testSwitchUserIsDisallowed()
 
         $this->accessDecisionManager->expects($this->once())
             ->method('decide')->with($token, ['ROLE_ALLOWED_TO_SWITCH'])
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $listener = new SwitchUserListener($this->tokenStorage, $this->userProvider, $this->userChecker, 'provider123', $this->accessDecisionManager);
         $listener->handle($this->event);
@@ -183,11 +183,11 @@ public function testSwitchUser()
 
         $this->accessDecisionManager->expects($this->once())
             ->method('decide')->with($token, ['ROLE_ALLOWED_TO_SWITCH'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->userProvider->expects($this->once())
             ->method('loadUserByUsername')->with('kuba')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
         $this->userChecker->expects($this->once())
             ->method('checkPostAuth')->with($user);
 
@@ -213,11 +213,11 @@ public function testSwitchUserKeepsOtherQueryStringParameters()
 
         $this->accessDecisionManager->expects($this->once())
             ->method('decide')->with($token, ['ROLE_ALLOWED_TO_SWITCH'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->userProvider->expects($this->once())
             ->method('loadUserByUsername')->with('kuba')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
         $this->userChecker->expects($this->once())
             ->method('checkPostAuth')->with($user);
 
@@ -241,11 +241,11 @@ public function testSwitchUserWithReplacedToken()
 
         $this->accessDecisionManager->expects($this->any())
             ->method('decide')->with($token, ['ROLE_ALLOWED_TO_SWITCH'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->userProvider->expects($this->any())
             ->method('loadUserByUsername')->with('kuba')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
 
         $dispatcher = $this->getMockBuilder('Symfony\Component\EventDispatcher\EventDispatcherInterface')->getMock();
         $dispatcher
@@ -288,11 +288,11 @@ public function testSwitchUserStateless()
 
         $this->accessDecisionManager->expects($this->once())
             ->method('decide')->with($token, ['ROLE_ALLOWED_TO_SWITCH'])
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->userProvider->expects($this->once())
             ->method('loadUserByUsername')->with('kuba')
-            ->will($this->returnValue($user));
+            ->willReturn($user);
         $this->userChecker->expects($this->once())
             ->method('checkPostAuth')->with($user);
 
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordFormAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordFormAuthenticationListenerTest.php
index f1536db6d25a6..61455745289df 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordFormAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordFormAuthenticationListenerTest.php
@@ -38,21 +38,21 @@ public function testHandleWhenUsernameLength($username, $ok)
         $httpUtils
             ->expects($this->any())
             ->method('checkRequestPath')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $failureHandler = $this->getMockBuilder('Symfony\Component\Security\Http\Authentication\AuthenticationFailureHandlerInterface')->getMock();
         $failureHandler
             ->expects($ok ? $this->never() : $this->once())
             ->method('onAuthenticationFailure')
-            ->will($this->returnValue(new Response()))
+            ->willReturn(new Response())
         ;
 
         $authenticationManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationProviderManager')->disableOriginalConstructor()->getMock();
         $authenticationManager
             ->expects($ok ? $this->once() : $this->never())
             ->method('authenticate')
-            ->will($this->returnValue(new Response()))
+            ->willReturn(new Response())
         ;
 
         $listener = new UsernamePasswordFormAuthenticationListener(
@@ -70,7 +70,7 @@ public function testHandleWhenUsernameLength($username, $ok)
         $event
             ->expects($this->any())
             ->method('getRequest')
-            ->will($this->returnValue($request))
+            ->willReturn($request)
         ;
 
         $listener->handle($event);
@@ -154,7 +154,7 @@ public function testHandleNonStringUsernameWith__toString($postOnly)
         $usernameClass
             ->expects($this->atLeastOnce())
             ->method('__toString')
-            ->will($this->returnValue('someUsername'));
+            ->willReturn('someUsername');
 
         $request = Request::create('/login_check', 'POST', ['_username' => $usernameClass]);
         $request->setSession($this->getMockBuilder('Symfony\Component\HttpFoundation\Session\SessionInterface')->getMock());
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordJsonAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordJsonAuthenticationListenerTest.php
index ed7acfbe5d7a7..7d2e55906b1d9 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordJsonAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/UsernamePasswordJsonAuthenticationListenerTest.php
@@ -43,7 +43,7 @@ private function createListener(array $options = [], $success = true, $matchChec
         $httpUtils
             ->expects($this->any())
             ->method('checkRequestPath')
-            ->will($this->returnValue($matchCheckPath))
+            ->willReturn($matchCheckPath)
         ;
         $authenticationManager = $this->getMockBuilder(AuthenticationManagerInterface::class)->getMock();
 
diff --git a/src/Symfony/Component/Security/Http/Tests/FirewallMapTest.php b/src/Symfony/Component/Security/Http/Tests/FirewallMapTest.php
index 04fe3b4ea3052..a8eb97192dc70 100644
--- a/src/Symfony/Component/Security/Http/Tests/FirewallMapTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/FirewallMapTest.php
@@ -28,7 +28,7 @@ public function testGetListeners()
             ->expects($this->once())
             ->method('matches')
             ->with($this->equalTo($request))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $map->add($notMatchingMatcher, [$this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ListenerInterface')->getMock()]);
@@ -38,7 +38,7 @@ public function testGetListeners()
             ->expects($this->once())
             ->method('matches')
             ->with($this->equalTo($request))
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
         $theListener = $this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ListenerInterface')->getMock();
         $theException = $this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ExceptionListener')->disableOriginalConstructor()->getMock();
@@ -70,7 +70,7 @@ public function testGetListenersWithAnEntryHavingNoRequestMatcher()
             ->expects($this->once())
             ->method('matches')
             ->with($this->equalTo($request))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $map->add($notMatchingMatcher, [$this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ListenerInterface')->getMock()]);
@@ -105,7 +105,7 @@ public function testGetListenersWithNoMatchingEntry()
             ->expects($this->once())
             ->method('matches')
             ->with($this->equalTo($request))
-            ->will($this->returnValue(false))
+            ->willReturn(false)
         ;
 
         $map->add($notMatchingMatcher, [$this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ListenerInterface')->getMock()]);
diff --git a/src/Symfony/Component/Security/Http/Tests/FirewallTest.php b/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
index 9113890b5e745..673a8be7139d0 100644
--- a/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
@@ -37,7 +37,7 @@ public function testOnKernelRequestRegistersExceptionListener()
             ->expects($this->once())
             ->method('getListeners')
             ->with($this->equalTo($request))
-            ->will($this->returnValue([[], $listener]))
+            ->willReturn([[], $listener])
         ;
 
         $event = new GetResponseEvent($this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock(), $request, HttpKernelInterface::MASTER_REQUEST);
@@ -66,7 +66,7 @@ public function testOnKernelRequestStopsWhenThereIsAResponse()
         $map
             ->expects($this->once())
             ->method('getListeners')
-            ->will($this->returnValue([[$first, $second], null]))
+            ->willReturn([[$first, $second], null])
         ;
 
         $event = $this->getMockBuilder('Symfony\Component\HttpKernel\Event\GetResponseEvent')
@@ -81,7 +81,7 @@ public function testOnKernelRequestStopsWhenThereIsAResponse()
         $event
             ->expects($this->at(0))
             ->method('hasResponse')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $firewall = new Firewall($map, $this->getMockBuilder('Symfony\Component\EventDispatcher\EventDispatcherInterface')->getMock());
diff --git a/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php b/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
index 5368f4683c741..a4a76747e5a58 100644
--- a/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
@@ -92,12 +92,12 @@ public function testCreateRedirectResponseWithRouteName()
             ->expects($this->any())
             ->method('generate')
             ->with('foobar', [], UrlGeneratorInterface::ABSOLUTE_URL)
-            ->will($this->returnValue('http://localhost/foo/bar'))
+            ->willReturn('http://localhost/foo/bar')
         ;
         $urlGenerator
             ->expects($this->any())
             ->method('getContext')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Routing\RequestContext')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Routing\RequestContext')->getMock())
         ;
 
         $response = $utils->createRedirectResponse($this->getRequest(), 'foobar');
@@ -125,12 +125,12 @@ public function testCreateRequestWithRouteName()
         $urlGenerator
             ->expects($this->once())
             ->method('generate')
-            ->will($this->returnValue('/foo/bar'))
+            ->willReturn('/foo/bar')
         ;
         $urlGenerator
             ->expects($this->any())
             ->method('getContext')
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Routing\RequestContext')->getMock()))
+            ->willReturn($this->getMockBuilder('Symfony\Component\Routing\RequestContext')->getMock())
         ;
 
         $subRequest = $utils->createRequest($this->getRequest(), 'foobar');
@@ -229,7 +229,7 @@ public function testCheckRequestPathWithUrlMatcherAndResourceFoundByUrl()
             ->expects($this->any())
             ->method('match')
             ->with('/foo/bar')
-            ->will($this->returnValue(['_route' => 'foobar']))
+            ->willReturn(['_route' => 'foobar'])
         ;
 
         $utils = new HttpUtils(null, $urlMatcher);
@@ -244,7 +244,7 @@ public function testCheckRequestPathWithUrlMatcherAndResourceFoundByRequest()
             ->expects($this->any())
             ->method('matchRequest')
             ->with($request)
-            ->will($this->returnValue(['_route' => 'foobar']))
+            ->willReturn(['_route' => 'foobar'])
         ;
 
         $utils = new HttpUtils(null, $urlMatcher);
@@ -323,7 +323,7 @@ private function getUrlGenerator($generatedUrl = '/foo/bar')
         $urlGenerator
             ->expects($this->any())
             ->method('generate')
-            ->will($this->returnValue($generatedUrl))
+            ->willReturn($generatedUrl)
         ;
 
         return $urlGenerator;
diff --git a/src/Symfony/Component/Security/Http/Tests/Logout/DefaultLogoutSuccessHandlerTest.php b/src/Symfony/Component/Security/Http/Tests/Logout/DefaultLogoutSuccessHandlerTest.php
index 9936fc933957b..926f8cc4b23af 100644
--- a/src/Symfony/Component/Security/Http/Tests/Logout/DefaultLogoutSuccessHandlerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Logout/DefaultLogoutSuccessHandlerTest.php
@@ -26,7 +26,7 @@ public function testLogout()
         $httpUtils->expects($this->once())
             ->method('createRedirectResponse')
             ->with($request, '/dashboard')
-            ->will($this->returnValue($response));
+            ->willReturn($response);
 
         $handler = new DefaultLogoutSuccessHandler($httpUtils, '/dashboard');
         $result = $handler->onLogoutSuccess($request);
diff --git a/src/Symfony/Component/Security/Http/Tests/Logout/SessionLogoutHandlerTest.php b/src/Symfony/Component/Security/Http/Tests/Logout/SessionLogoutHandlerTest.php
index e32d46e3e577e..cf25d1f77c820 100644
--- a/src/Symfony/Component/Security/Http/Tests/Logout/SessionLogoutHandlerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Logout/SessionLogoutHandlerTest.php
@@ -28,7 +28,7 @@ public function testLogout()
         $request
             ->expects($this->once())
             ->method('getSession')
-            ->will($this->returnValue($session))
+            ->willReturn($session)
         ;
 
         $session
diff --git a/src/Symfony/Component/Security/Http/Tests/RememberMe/AbstractRememberMeServicesTest.php b/src/Symfony/Component/Security/Http/Tests/RememberMe/AbstractRememberMeServicesTest.php
index 38b8474ffc38b..ade199c0b9224 100644
--- a/src/Symfony/Component/Security/Http/Tests/RememberMe/AbstractRememberMeServicesTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/RememberMe/AbstractRememberMeServicesTest.php
@@ -51,7 +51,7 @@ public function testAutoLoginThrowsExceptionWhenImplementationDoesNotReturnUserI
         $service
             ->expects($this->once())
             ->method('processAutoLoginCookie')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $service->autoLogin($request);
@@ -67,13 +67,13 @@ public function testAutoLogin()
         $user
             ->expects($this->once())
             ->method('getRoles')
-            ->will($this->returnValue([]))
+            ->willReturn([])
         ;
 
         $service
             ->expects($this->once())
             ->method('processAutoLoginCookie')
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $returnedToken = $service->autoLogin($request);
@@ -131,7 +131,7 @@ public function testLoginSuccessIsNotProcessedWhenTokenDoesNotContainUserInterfa
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
 
         $service
@@ -154,13 +154,13 @@ public function testLoginSuccessIsNotProcessedWhenRememberMeIsNotRequested()
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($account))
+            ->willReturn($account)
         ;
 
         $service
             ->expects($this->never())
             ->method('onLoginSuccess')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $this->assertFalse($request->request->has('foo'));
@@ -178,13 +178,13 @@ public function testLoginSuccessWhenRememberMeAlwaysIsTrue()
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($account))
+            ->willReturn($account)
         ;
 
         $service
             ->expects($this->once())
             ->method('onLoginSuccess')
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         $service->loginSuccess($request, $response, $token);
@@ -205,13 +205,13 @@ public function testLoginSuccessWhenRememberMeParameterWithPathIsPositive($value
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($account))
+            ->willReturn($account)
         ;
 
         $service
             ->expects($this->once())
             ->method('onLoginSuccess')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $service->loginSuccess($request, $response, $token);
@@ -232,13 +232,13 @@ public function testLoginSuccessWhenRememberMeParameterIsPositive($value)
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue($account))
+            ->willReturn($account)
         ;
 
         $service
             ->expects($this->once())
             ->method('onLoginSuccess')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $service->loginSuccess($request, $response, $token);
@@ -296,7 +296,7 @@ protected function getProvider()
         $provider
             ->expects($this->any())
             ->method('supportsClass')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         return $provider;
diff --git a/src/Symfony/Component/Security/Http/Tests/RememberMe/PersistentTokenBasedRememberMeServicesTest.php b/src/Symfony/Component/Security/Http/Tests/RememberMe/PersistentTokenBasedRememberMeServicesTest.php
index 529b050c40b3e..599a7e81c303b 100644
--- a/src/Symfony/Component/Security/Http/Tests/RememberMe/PersistentTokenBasedRememberMeServicesTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/RememberMe/PersistentTokenBasedRememberMeServicesTest.php
@@ -84,7 +84,7 @@ public function testAutoLoginReturnsNullOnNonExistentUser()
         $tokenProvider
             ->expects($this->once())
             ->method('loadTokenBySeries')
-            ->will($this->returnValue(new PersistentToken('fooclass', 'fooname', 'fooseries', 'foovalue', new \DateTime())))
+            ->willReturn(new PersistentToken('fooclass', 'fooname', 'fooseries', 'foovalue', new \DateTime()))
         ;
         $service->setTokenProvider($tokenProvider);
 
@@ -111,14 +111,14 @@ public function testAutoLoginThrowsExceptionOnStolenCookieAndRemovesItFromThePer
         $tokenProvider
             ->expects($this->once())
             ->method('loadTokenBySeries')
-            ->will($this->returnValue(new PersistentToken('fooclass', 'foouser', 'fooseries', 'anotherFooValue', new \DateTime())))
+            ->willReturn(new PersistentToken('fooclass', 'foouser', 'fooseries', 'anotherFooValue', new \DateTime()))
         ;
 
         $tokenProvider
             ->expects($this->once())
             ->method('deleteTokenBySeries')
             ->with($this->equalTo('fooseries'))
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
 
         try {
@@ -141,7 +141,7 @@ public function testAutoLoginDoesNotAcceptAnExpiredCookie()
             ->expects($this->once())
             ->method('loadTokenBySeries')
             ->with($this->equalTo('fooseries'))
-            ->will($this->returnValue(new PersistentToken('fooclass', 'username', 'fooseries', 'foovalue', new \DateTime('yesterday'))))
+            ->willReturn(new PersistentToken('fooclass', 'username', 'fooseries', 'foovalue', new \DateTime('yesterday')))
         ;
         $service->setTokenProvider($tokenProvider);
 
@@ -155,7 +155,7 @@ public function testAutoLogin()
         $user
             ->expects($this->once())
             ->method('getRoles')
-            ->will($this->returnValue(['ROLE_FOO']))
+            ->willReturn(['ROLE_FOO'])
         ;
 
         $userProvider = $this->getProvider();
@@ -163,7 +163,7 @@ public function testAutoLogin()
             ->expects($this->once())
             ->method('loadUserByUsername')
             ->with($this->equalTo('foouser'))
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $service = $this->getService($userProvider, ['name' => 'foo', 'path' => null, 'domain' => null, 'secure' => false, 'httponly' => false, 'always_remember_me' => true, 'lifetime' => 3600]);
@@ -175,7 +175,7 @@ public function testAutoLogin()
             ->expects($this->once())
             ->method('loadTokenBySeries')
             ->with($this->equalTo('fooseries'))
-            ->will($this->returnValue(new PersistentToken('fooclass', 'foouser', 'fooseries', 'foovalue', new \DateTime())))
+            ->willReturn(new PersistentToken('fooclass', 'foouser', 'fooseries', 'foovalue', new \DateTime()))
         ;
         $service->setTokenProvider($tokenProvider);
 
@@ -200,7 +200,7 @@ public function testLogout()
             ->expects($this->once())
             ->method('deleteTokenBySeries')
             ->with($this->equalTo('fooseries'))
-            ->will($this->returnValue(null))
+            ->willReturn(null)
         ;
         $service->setTokenProvider($tokenProvider);
 
@@ -276,13 +276,13 @@ public function testLoginSuccessSetsCookieWhenLoggedInWithNonRememberMeTokenInte
         $account
             ->expects($this->once())
             ->method('getUsername')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
         $token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $token
             ->expects($this->any())
             ->method('getUser')
-            ->will($this->returnValue($account))
+            ->willReturn($account)
         ;
 
         $tokenProvider = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\RememberMe\TokenProviderInterface')->getMock();
@@ -331,7 +331,7 @@ protected function getProvider()
         $provider
             ->expects($this->any())
             ->method('supportsClass')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         return $provider;
diff --git a/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php b/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
index 501d3850fa649..465636eb9f77e 100644
--- a/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
@@ -95,9 +95,9 @@ private function getEvent($request, $response, $type = HttpKernelInterface::MAST
             ->disableOriginalConstructor()
             ->getMock();
 
-        $event->expects($this->any())->method('getRequest')->will($this->returnValue($request));
-        $event->expects($this->any())->method('isMasterRequest')->will($this->returnValue(HttpKernelInterface::MASTER_REQUEST === $type));
-        $event->expects($this->any())->method('getResponse')->will($this->returnValue($response));
+        $event->expects($this->any())->method('getRequest')->willReturn($request);
+        $event->expects($this->any())->method('isMasterRequest')->willReturn(HttpKernelInterface::MASTER_REQUEST === $type);
+        $event->expects($this->any())->method('getResponse')->willReturn($response);
 
         return $event;
     }
diff --git a/src/Symfony/Component/Security/Http/Tests/RememberMe/TokenBasedRememberMeServicesTest.php b/src/Symfony/Component/Security/Http/Tests/RememberMe/TokenBasedRememberMeServicesTest.php
index f0d938de84064..f24e4fff80805 100644
--- a/src/Symfony/Component/Security/Http/Tests/RememberMe/TokenBasedRememberMeServicesTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/RememberMe/TokenBasedRememberMeServicesTest.php
@@ -67,14 +67,14 @@ public function testAutoLoginDoesNotAcceptCookieWithInvalidHash()
         $user
             ->expects($this->once())
             ->method('getPassword')
-            ->will($this->returnValue('foopass'))
+            ->willReturn('foopass')
         ;
 
         $userProvider
             ->expects($this->once())
             ->method('loadUserByUsername')
             ->with($this->equalTo('foouser'))
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $this->assertNull($service->autoLogin($request));
@@ -92,14 +92,14 @@ public function testAutoLoginDoesNotAcceptAnExpiredCookie()
         $user
             ->expects($this->once())
             ->method('getPassword')
-            ->will($this->returnValue('foopass'))
+            ->willReturn('foopass')
         ;
 
         $userProvider
             ->expects($this->once())
             ->method('loadUserByUsername')
             ->with($this->equalTo('foouser'))
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $this->assertNull($service->autoLogin($request));
@@ -117,12 +117,12 @@ public function testAutoLogin($username)
         $user
             ->expects($this->once())
             ->method('getRoles')
-            ->will($this->returnValue(['ROLE_FOO']))
+            ->willReturn(['ROLE_FOO'])
         ;
         $user
             ->expects($this->once())
             ->method('getPassword')
-            ->will($this->returnValue('foopass'))
+            ->willReturn('foopass')
         ;
 
         $userProvider = $this->getProvider();
@@ -130,7 +130,7 @@ public function testAutoLogin($username)
             ->expects($this->once())
             ->method('loadUserByUsername')
             ->with($this->equalTo($username))
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $service = $this->getService($userProvider, ['name' => 'foo', 'always_remember_me' => true, 'lifetime' => 3600]);
@@ -191,7 +191,7 @@ public function testLoginSuccessIgnoresTokensWhichDoNotContainAnUserInterfaceImp
         $token
             ->expects($this->once())
             ->method('getUser')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
 
         $cookies = $response->headers->getCookies();
@@ -214,17 +214,17 @@ public function testLoginSuccess()
         $user
             ->expects($this->once())
             ->method('getPassword')
-            ->will($this->returnValue('foopass'))
+            ->willReturn('foopass')
         ;
         $user
             ->expects($this->once())
             ->method('getUsername')
-            ->will($this->returnValue('foouser'))
+            ->willReturn('foouser')
         ;
         $token
             ->expects($this->atLeastOnce())
             ->method('getUser')
-            ->will($this->returnValue($user))
+            ->willReturn($user)
         ;
 
         $cookies = $response->headers->getCookies();
@@ -277,7 +277,7 @@ protected function getProvider()
         $provider
             ->expects($this->any())
             ->method('supportsClass')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         return $provider;
diff --git a/src/Symfony/Component/Security/Http/Tests/Session/SessionAuthenticationStrategyTest.php b/src/Symfony/Component/Security/Http/Tests/Session/SessionAuthenticationStrategyTest.php
index 271bc99cc5ba3..6c0df8cb5f2cb 100644
--- a/src/Symfony/Component/Security/Http/Tests/Session/SessionAuthenticationStrategyTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Session/SessionAuthenticationStrategyTest.php
@@ -61,7 +61,7 @@ private function getRequest($session = null)
         $request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')->getMock();
 
         if (null !== $session) {
-            $request->expects($this->any())->method('getSession')->will($this->returnValue($session));
+            $request->expects($this->any())->method('getSession')->willReturn($session);
         }
 
         return $request;
diff --git a/src/Symfony/Component/Serializer/Tests/Encoder/ChainDecoderTest.php b/src/Symfony/Component/Serializer/Tests/Encoder/ChainDecoderTest.php
index 3a84d99dde286..22b86758a590a 100644
--- a/src/Symfony/Component/Serializer/Tests/Encoder/ChainDecoderTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Encoder/ChainDecoderTest.php
@@ -32,12 +32,12 @@ protected function setUp()
 
         $this->decoder1
             ->method('supportsDecoding')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 [self::FORMAT_1, [], true],
                 [self::FORMAT_2, [], false],
                 [self::FORMAT_3, [], false],
                 [self::FORMAT_3, ['foo' => 'bar'], true],
-            ]));
+            ]);
 
         $this->decoder2 = $this
             ->getMockBuilder('Symfony\Component\Serializer\Encoder\DecoderInterface')
@@ -45,11 +45,11 @@ protected function setUp()
 
         $this->decoder2
             ->method('supportsDecoding')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 [self::FORMAT_1, [], false],
                 [self::FORMAT_2, [], true],
                 [self::FORMAT_3, [], false],
-            ]));
+            ]);
 
         $this->chainDecoder = new ChainDecoder([$this->decoder1, $this->decoder2]);
     }
diff --git a/src/Symfony/Component/Serializer/Tests/Encoder/ChainEncoderTest.php b/src/Symfony/Component/Serializer/Tests/Encoder/ChainEncoderTest.php
index 48ccbdca0aca6..d9b6251ed93c3 100644
--- a/src/Symfony/Component/Serializer/Tests/Encoder/ChainEncoderTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Encoder/ChainEncoderTest.php
@@ -34,12 +34,12 @@ protected function setUp()
 
         $this->encoder1
             ->method('supportsEncoding')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 [self::FORMAT_1, [], true],
                 [self::FORMAT_2, [], false],
                 [self::FORMAT_3, [], false],
                 [self::FORMAT_3, ['foo' => 'bar'], true],
-            ]));
+            ]);
 
         $this->encoder2 = $this
             ->getMockBuilder('Symfony\Component\Serializer\Encoder\EncoderInterface')
@@ -47,11 +47,11 @@ protected function setUp()
 
         $this->encoder2
             ->method('supportsEncoding')
-            ->will($this->returnValueMap([
+            ->willReturnMap([
                 [self::FORMAT_1, [], false],
                 [self::FORMAT_2, [], true],
                 [self::FORMAT_3, [], false],
-            ]));
+            ]);
 
         $this->chainEncoder = new ChainEncoder([$this->encoder1, $this->encoder2]);
     }
diff --git a/src/Symfony/Component/Serializer/Tests/Mapping/Factory/CacheMetadataFactoryTest.php b/src/Symfony/Component/Serializer/Tests/Mapping/Factory/CacheMetadataFactoryTest.php
index cac4367ca7995..067f16acf9c36 100644
--- a/src/Symfony/Component/Serializer/Tests/Mapping/Factory/CacheMetadataFactoryTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Mapping/Factory/CacheMetadataFactoryTest.php
@@ -31,7 +31,7 @@ public function testGetMetadataFor()
         $decorated
             ->expects($this->once())
             ->method('getMetadataFor')
-            ->will($this->returnValue($metadata))
+            ->willReturn($metadata)
         ;
 
         $factory = new CacheClassMetadataFactory($decorated, new ArrayAdapter());
@@ -47,7 +47,7 @@ public function testHasMetadataFor()
         $decorated
             ->expects($this->once())
             ->method('hasMetadataFor')
-            ->will($this->returnValue(true))
+            ->willReturn(true)
         ;
 
         $factory = new CacheClassMetadataFactory($decorated, new ArrayAdapter());
diff --git a/src/Symfony/Component/Serializer/Tests/Mapping/Factory/ClassMetadataFactoryTest.php b/src/Symfony/Component/Serializer/Tests/Mapping/Factory/ClassMetadataFactoryTest.php
index 3d2aaa4c7ccdd..4e32085c98454 100644
--- a/src/Symfony/Component/Serializer/Tests/Mapping/Factory/ClassMetadataFactoryTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Mapping/Factory/ClassMetadataFactoryTest.php
@@ -55,7 +55,7 @@ public function testCacheExists()
         $cache
             ->expects($this->once())
             ->method('fetch')
-            ->will($this->returnValue('foo'))
+            ->willReturn('foo')
         ;
 
         $factory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()), $cache);
@@ -68,7 +68,7 @@ public function testCacheExists()
     public function testCacheNotExists()
     {
         $cache = $this->getMockBuilder('Doctrine\Common\Cache\Cache')->getMock();
-        $cache->method('fetch')->will($this->returnValue(false));
+        $cache->method('fetch')->willReturn(false);
         $cache->method('save');
 
         $factory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()), $cache);
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
index fd456cb9dd4d8..132f3c0806350 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
@@ -39,12 +39,12 @@ public function testDenormalize()
         $this->serializer->expects($this->at(0))
             ->method('denormalize')
             ->with(['foo' => 'one', 'bar' => 'two'])
-            ->will($this->returnValue(new ArrayDummy('one', 'two')));
+            ->willReturn(new ArrayDummy('one', 'two'));
 
         $this->serializer->expects($this->at(1))
             ->method('denormalize')
             ->with(['foo' => 'three', 'bar' => 'four'])
-            ->will($this->returnValue(new ArrayDummy('three', 'four')));
+            ->willReturn(new ArrayDummy('three', 'four'));
 
         $result = $this->denormalizer->denormalize(
             [
@@ -68,7 +68,7 @@ public function testSupportsValidArray()
         $this->serializer->expects($this->once())
             ->method('supportsDenormalization')
             ->with($this->anything(), __NAMESPACE__.'\ArrayDummy', $this->anything())
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $this->assertTrue(
             $this->denormalizer->supportsDenormalization(
@@ -85,7 +85,7 @@ public function testSupportsInvalidArray()
     {
         $this->serializer->expects($this->any())
             ->method('supportsDenormalization')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $this->assertFalse(
             $this->denormalizer->supportsDenormalization(
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/GetSetMethodNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/GetSetMethodNormalizerTest.php
index 894801747540c..d92fad3f80978 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/GetSetMethodNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/GetSetMethodNormalizerTest.php
@@ -63,7 +63,7 @@ public function testNormalize()
             ->expects($this->once())
             ->method('normalize')
             ->with($object, 'any')
-            ->will($this->returnValue('string_object'))
+            ->willReturn('string_object')
         ;
 
         $this->assertEquals(
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/JsonSerializableNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/JsonSerializableNormalizerTest.php
index c6b167cbbe13e..4d9a53eeb9374 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/JsonSerializableNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/JsonSerializableNormalizerTest.php
@@ -50,11 +50,11 @@ public function testNormalize()
         $this->serializer
             ->expects($this->once())
             ->method('normalize')
-            ->will($this->returnCallback(function ($data) {
+            ->willReturnCallback(function ($data) {
                 $this->assertArraySubset(['foo' => 'a', 'bar' => 'b', 'baz' => 'c'], $data);
 
                 return 'string_object';
-            }))
+            })
         ;
 
         $this->assertEquals('string_object', $this->normalizer->normalize(new JsonSerializableDummy()));
@@ -70,11 +70,11 @@ public function testCircularNormalize()
         $this->serializer
             ->expects($this->once())
             ->method('normalize')
-            ->will($this->returnCallback(function ($data, $format, $context) {
+            ->willReturnCallback(function ($data, $format, $context) {
                 $this->normalizer->normalize($data['qux'], $format, $context);
 
                 return 'string_object';
-            }))
+            })
         ;
 
         $this->assertEquals('string_object', $this->normalizer->normalize(new JsonSerializableDummy()));
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
index b30739714b663..fe9d0b8546096 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
@@ -65,7 +65,7 @@ public function testNormalize()
             ->expects($this->once())
             ->method('normalize')
             ->with($object, 'any')
-            ->will($this->returnValue('string_object'))
+            ->willReturn('string_object')
         ;
 
         $this->assertEquals(
diff --git a/src/Symfony/Component/Templating/Tests/DelegatingEngineTest.php b/src/Symfony/Component/Templating/Tests/DelegatingEngineTest.php
index 875672d27fff5..3d61ec2716b59 100644
--- a/src/Symfony/Component/Templating/Tests/DelegatingEngineTest.php
+++ b/src/Symfony/Component/Templating/Tests/DelegatingEngineTest.php
@@ -26,7 +26,7 @@ public function testRenderDelegatesToSupportedEngine()
         $secondEngine->expects($this->once())
             ->method('render')
             ->with('template.php', ['foo' => 'bar'])
-            ->will($this->returnValue('<html />'));
+            ->willReturn('<html />');
 
         $delegatingEngine = new DelegatingEngine([$firstEngine, $secondEngine]);
         $result = $delegatingEngine->render('template.php', ['foo' => 'bar']);
@@ -53,7 +53,7 @@ public function testStreamDelegatesToSupportedEngine()
         $streamingEngine->expects($this->once())
             ->method('stream')
             ->with('template.php', ['foo' => 'bar'])
-            ->will($this->returnValue('<html />'));
+            ->willReturn('<html />');
 
         $delegatingEngine = new DelegatingEngine([$streamingEngine]);
         $result = $delegatingEngine->stream('template.php', ['foo' => 'bar']);
@@ -77,7 +77,7 @@ public function testExists()
         $engine->expects($this->once())
             ->method('exists')
             ->with('template.php')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $delegatingEngine = new DelegatingEngine([$engine]);
 
@@ -132,7 +132,7 @@ private function getEngineMock($template, $supports)
         $engine->expects($this->once())
             ->method('supports')
             ->with($template)
-            ->will($this->returnValue($supports));
+            ->willReturn($supports);
 
         return $engine;
     }
@@ -144,7 +144,7 @@ private function getStreamingEngineMock($template, $supports)
         $engine->expects($this->once())
             ->method('supports')
             ->with($template)
-            ->will($this->returnValue($supports));
+            ->willReturn($supports);
 
         return $engine;
     }
diff --git a/src/Symfony/Component/Translation/Tests/DataCollector/TranslationDataCollectorTest.php b/src/Symfony/Component/Translation/Tests/DataCollector/TranslationDataCollectorTest.php
index b4d350ef862e5..bd97a2445c0a5 100644
--- a/src/Symfony/Component/Translation/Tests/DataCollector/TranslationDataCollectorTest.php
+++ b/src/Symfony/Component/Translation/Tests/DataCollector/TranslationDataCollectorTest.php
@@ -27,7 +27,7 @@ protected function setUp()
     public function testCollectEmptyMessages()
     {
         $translator = $this->getTranslator();
-        $translator->expects($this->any())->method('getCollectedMessages')->will($this->returnValue([]));
+        $translator->expects($this->any())->method('getCollectedMessages')->willReturn([]);
 
         $dataCollector = new TranslationDataCollector($translator);
         $dataCollector->lateCollect();
@@ -125,7 +125,7 @@ public function testCollect()
         ];
 
         $translator = $this->getTranslator();
-        $translator->expects($this->any())->method('getCollectedMessages')->will($this->returnValue($collectedMessages));
+        $translator->expects($this->any())->method('getCollectedMessages')->willReturn($collectedMessages);
 
         $dataCollector = new TranslationDataCollector($translator);
         $dataCollector->lateCollect();
diff --git a/src/Symfony/Component/Translation/Tests/MessageCatalogueTest.php b/src/Symfony/Component/Translation/Tests/MessageCatalogueTest.php
index 433be2eeaf45c..0f9c8d684e3ba 100644
--- a/src/Symfony/Component/Translation/Tests/MessageCatalogueTest.php
+++ b/src/Symfony/Component/Translation/Tests/MessageCatalogueTest.php
@@ -84,10 +84,10 @@ public function testReplace()
     public function testAddCatalogue()
     {
         $r = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r->expects($this->any())->method('__toString')->will($this->returnValue('r'));
+        $r->expects($this->any())->method('__toString')->willReturn('r');
 
         $r1 = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r1->expects($this->any())->method('__toString')->will($this->returnValue('r1'));
+        $r1->expects($this->any())->method('__toString')->willReturn('r1');
 
         $catalogue = new MessageCatalogue('en', ['domain1' => ['foo' => 'foo'], 'domain2' => ['bar' => 'bar']]);
         $catalogue->addResource($r);
@@ -106,13 +106,13 @@ public function testAddCatalogue()
     public function testAddFallbackCatalogue()
     {
         $r = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r->expects($this->any())->method('__toString')->will($this->returnValue('r'));
+        $r->expects($this->any())->method('__toString')->willReturn('r');
 
         $r1 = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r1->expects($this->any())->method('__toString')->will($this->returnValue('r1'));
+        $r1->expects($this->any())->method('__toString')->willReturn('r1');
 
         $r2 = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r2->expects($this->any())->method('__toString')->will($this->returnValue('r2'));
+        $r2->expects($this->any())->method('__toString')->willReturn('r2');
 
         $catalogue = new MessageCatalogue('fr_FR', ['domain1' => ['foo' => 'foo'], 'domain2' => ['bar' => 'bar']]);
         $catalogue->addResource($r);
@@ -171,11 +171,11 @@ public function testGetAddResource()
     {
         $catalogue = new MessageCatalogue('en');
         $r = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r->expects($this->any())->method('__toString')->will($this->returnValue('r'));
+        $r->expects($this->any())->method('__toString')->willReturn('r');
         $catalogue->addResource($r);
         $catalogue->addResource($r);
         $r1 = $this->getMockBuilder('Symfony\Component\Config\Resource\ResourceInterface')->getMock();
-        $r1->expects($this->any())->method('__toString')->will($this->returnValue('r1'));
+        $r1->expects($this->any())->method('__toString')->willReturn('r1');
         $catalogue->addResource($r1);
 
         $this->assertEquals([$r, $r1], $catalogue->getResources());
diff --git a/src/Symfony/Component/Translation/Tests/TranslatorCacheTest.php b/src/Symfony/Component/Translation/Tests/TranslatorCacheTest.php
index 6c94e14c54bac..0213e22254782 100644
--- a/src/Symfony/Component/Translation/Tests/TranslatorCacheTest.php
+++ b/src/Symfony/Component/Translation/Tests/TranslatorCacheTest.php
@@ -100,7 +100,7 @@ public function testCatalogueIsReloadedWhenResourcesAreNoLongerFresh()
         $loader
             ->expects($this->exactly(2))
             ->method('load')
-            ->will($this->returnValue($catalogue))
+            ->willReturn($catalogue)
         ;
 
         // 1st pass
@@ -242,11 +242,11 @@ public function testRefreshCacheWhenResourcesAreNoLongerFresh()
     {
         $resource = $this->getMockBuilder('Symfony\Component\Config\Resource\SelfCheckingResourceInterface')->getMock();
         $loader = $this->getMockBuilder('Symfony\Component\Translation\Loader\LoaderInterface')->getMock();
-        $resource->method('isFresh')->will($this->returnValue(false));
+        $resource->method('isFresh')->willReturn(false);
         $loader
             ->expects($this->exactly(2))
             ->method('load')
-            ->will($this->returnValue($this->getCatalogue('fr', [], [$resource])));
+            ->willReturn($this->getCatalogue('fr', [], [$resource]));
 
         // prime the cache
         $translator = new Translator('fr', null, $this->tmpDir, true);
diff --git a/src/Symfony/Component/Validator/Test/ConstraintValidatorTestCase.php b/src/Symfony/Component/Validator/Test/ConstraintValidatorTestCase.php
index f07adb94238f5..0a11c4741385a 100644
--- a/src/Symfony/Component/Validator/Test/ConstraintValidatorTestCase.php
+++ b/src/Symfony/Component/Validator/Test/ConstraintValidatorTestCase.php
@@ -109,7 +109,7 @@ protected function createContext()
         $validator->expects($this->any())
             ->method('inContext')
             ->with($context)
-            ->will($this->returnValue($contextualValidator));
+            ->willReturn($contextualValidator);
 
         return $context;
     }
@@ -174,7 +174,7 @@ protected function expectValidateAt($i, $propertyPath, $value, $group)
         $validator->expects($this->at(2 * $i))
             ->method('atPath')
             ->with($propertyPath)
-            ->will($this->returnValue($validator));
+            ->willReturn($validator);
         $validator->expects($this->at(2 * $i + 1))
             ->method('validate')
             ->with($value, $this->logicalOr(null, [], $this->isInstanceOf('\Symfony\Component\Validator\Constraints\Valid')), $group);
@@ -186,7 +186,7 @@ protected function expectValidateValueAt($i, $propertyPath, $value, $constraints
         $contextualValidator->expects($this->at(2 * $i))
             ->method('atPath')
             ->with($propertyPath)
-            ->will($this->returnValue($contextualValidator));
+            ->willReturn($contextualValidator);
         $contextualValidator->expects($this->at(2 * $i + 1))
             ->method('validate')
             ->with($value, $constraints, $group);
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/ExpressionValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/ExpressionValidatorTest.php
index 5cffcefd52726..72ca333d3c0a3 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/ExpressionValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/ExpressionValidatorTest.php
@@ -258,11 +258,11 @@ public function testExpressionLanguageUsage()
         $used = false;
 
         $expressionLanguage->method('evaluate')
-            ->will($this->returnCallback(function () use (&$used) {
+            ->willReturnCallback(function () use (&$used) {
                 $used = true;
 
                 return true;
-            }));
+            });
 
         $validator = new ExpressionValidator(null, $expressionLanguage);
         $validator->initialize($this->createContext());
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
index b3428e77828ce..65906c5539fee 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
@@ -291,11 +291,11 @@ public function testValidMimeType()
         $file
             ->expects($this->once())
             ->method('getPathname')
-            ->will($this->returnValue($this->path));
+            ->willReturn($this->path);
         $file
             ->expects($this->once())
             ->method('getMimeType')
-            ->will($this->returnValue('image/jpg'));
+            ->willReturn('image/jpg');
 
         $constraint = new File([
             'mimeTypes' => ['image/png', 'image/jpg'],
@@ -315,11 +315,11 @@ public function testValidWildcardMimeType()
         $file
             ->expects($this->once())
             ->method('getPathname')
-            ->will($this->returnValue($this->path));
+            ->willReturn($this->path);
         $file
             ->expects($this->once())
             ->method('getMimeType')
-            ->will($this->returnValue('image/jpg'));
+            ->willReturn('image/jpg');
 
         $constraint = new File([
             'mimeTypes' => ['image/*'],
@@ -339,11 +339,11 @@ public function testInvalidMimeType()
         $file
             ->expects($this->once())
             ->method('getPathname')
-            ->will($this->returnValue($this->path));
+            ->willReturn($this->path);
         $file
             ->expects($this->once())
             ->method('getMimeType')
-            ->will($this->returnValue('application/pdf'));
+            ->willReturn('application/pdf');
 
         $constraint = new File([
             'mimeTypes' => ['image/png', 'image/jpg'],
@@ -369,11 +369,11 @@ public function testInvalidWildcardMimeType()
         $file
             ->expects($this->once())
             ->method('getPathname')
-            ->will($this->returnValue($this->path));
+            ->willReturn($this->path);
         $file
             ->expects($this->once())
             ->method('getMimeType')
-            ->will($this->returnValue('application/pdf'));
+            ->willReturn('application/pdf');
 
         $constraint = new File([
             'mimeTypes' => ['image/*', 'image/jpg'],
diff --git a/src/Symfony/Component/Validator/Tests/ContainerConstraintValidatorFactoryTest.php b/src/Symfony/Component/Validator/Tests/ContainerConstraintValidatorFactoryTest.php
index 3782fba46c3b1..5178bc3b3060d 100644
--- a/src/Symfony/Component/Validator/Tests/ContainerConstraintValidatorFactoryTest.php
+++ b/src/Symfony/Component/Validator/Tests/ContainerConstraintValidatorFactoryTest.php
@@ -54,7 +54,7 @@ public function testGetInstanceInvalidValidatorClass()
         $constraint
             ->expects($this->once())
             ->method('validatedBy')
-            ->will($this->returnValue('Fully\\Qualified\\ConstraintValidator\\Class\\Name'));
+            ->willReturn('Fully\\Qualified\\ConstraintValidator\\Class\\Name');
 
         $factory = new ContainerConstraintValidatorFactory(new Container());
         $factory->getInstance($constraint);
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Cache/AbstractCacheTest.php b/src/Symfony/Component/Validator/Tests/Mapping/Cache/AbstractCacheTest.php
index 4d0363fd717b4..bd088e0f093d7 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Cache/AbstractCacheTest.php
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Cache/AbstractCacheTest.php
@@ -31,7 +31,7 @@ public function testWrite()
 
         $meta->expects($this->once())
             ->method('getClassName')
-            ->will($this->returnValue('Foo\\Bar'));
+            ->willReturn('Foo\\Bar');
 
         $this->cache->write($meta);
 
@@ -51,7 +51,7 @@ public function testHas()
 
         $meta->expects($this->once())
             ->method('getClassName')
-            ->will($this->returnValue('Foo\\Bar'));
+            ->willReturn('Foo\\Bar');
 
         $this->assertFalse($this->cache->has('Foo\\Bar'), 'has() returns false when there is no entry');
 
@@ -68,7 +68,7 @@ public function testRead()
 
         $meta->expects($this->once())
             ->method('getClassName')
-            ->will($this->returnValue('Foo\\Bar'));
+            ->willReturn('Foo\\Bar');
 
         $this->assertFalse($this->cache->read('Foo\\Bar'), 'read() returns false when there is no entry');
 
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Factory/LazyLoadingMetadataFactoryTest.php b/src/Symfony/Component/Validator/Tests/Mapping/Factory/LazyLoadingMetadataFactoryTest.php
index a7876d7f9168f..9ad85e3f904fe 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Factory/LazyLoadingMetadataFactoryTest.php
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Factory/LazyLoadingMetadataFactoryTest.php
@@ -97,7 +97,7 @@ public function testWriteMetadataToCache()
                   [$this->equalTo(self::PARENT_CLASS)],
                   [$this->equalTo(self::INTERFACE_A_CLASS)]
               )
-              ->will($this->returnValue(false));
+              ->willReturn(false);
         $cache->expects($this->exactly(2))
               ->method('write')
               ->withConsecutive(
@@ -172,12 +172,12 @@ public function testMetadataCacheWithRuntimeConstraint()
         $cache
             ->expects($this->any())
             ->method('write')
-            ->will($this->returnCallback(function ($metadata) { serialize($metadata); }))
+            ->willReturnCallback(function ($metadata) { serialize($metadata); })
         ;
 
         $cache->expects($this->any())
             ->method('read')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $metadata = $factory->getMetadataFor(self::PARENT_CLASS);
         $metadata->addConstraint(new Callback(function () {}));
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Loader/LoaderChainTest.php b/src/Symfony/Component/Validator/Tests/Mapping/Loader/LoaderChainTest.php
index f9905386c9601..45b8576f0e16a 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Loader/LoaderChainTest.php
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Loader/LoaderChainTest.php
@@ -46,12 +46,12 @@ public function testReturnsTrueIfAnyLoaderReturnedTrue()
         $loader1 = $this->getMockBuilder('Symfony\Component\Validator\Mapping\Loader\LoaderInterface')->getMock();
         $loader1->expects($this->any())
             ->method('loadClassMetadata')
-            ->will($this->returnValue(true));
+            ->willReturn(true);
 
         $loader2 = $this->getMockBuilder('Symfony\Component\Validator\Mapping\Loader\LoaderInterface')->getMock();
         $loader2->expects($this->any())
             ->method('loadClassMetadata')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $chain = new LoaderChain([
             $loader1,
@@ -68,12 +68,12 @@ public function testReturnsFalseIfNoLoaderReturnedTrue()
         $loader1 = $this->getMockBuilder('Symfony\Component\Validator\Mapping\Loader\LoaderInterface')->getMock();
         $loader1->expects($this->any())
             ->method('loadClassMetadata')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $loader2 = $this->getMockBuilder('Symfony\Component\Validator\Mapping\Loader\LoaderInterface')->getMock();
         $loader2->expects($this->any())
             ->method('loadClassMetadata')
-            ->will($this->returnValue(false));
+            ->willReturn(false);
 
         $chain = new LoaderChain([
             $loader1,
diff --git a/src/Symfony/Component/Validator/Tests/Validator/AbstractTest.php b/src/Symfony/Component/Validator/Tests/Validator/AbstractTest.php
index 1df64de4d99c6..2bc3d11ef6d49 100644
--- a/src/Symfony/Component/Validator/Tests/Validator/AbstractTest.php
+++ b/src/Symfony/Component/Validator/Tests/Validator/AbstractTest.php
@@ -610,9 +610,9 @@ public function testInitializeObjectsOnFirstValidation()
         $initializer1->expects($this->once())
             ->method('initialize')
             ->with($entity)
-            ->will($this->returnCallback(function ($object) {
+            ->willReturnCallback(function ($object) {
                 $object->initialized = true;
-            }));
+            });
 
         $initializer2->expects($this->once())
             ->method('initialize')
diff --git a/src/Symfony/Component/Workflow/Tests/RegistryTest.php b/src/Symfony/Component/Workflow/Tests/RegistryTest.php
index 25d2e1cc3b5ea..adedfc93b74d0 100644
--- a/src/Symfony/Component/Workflow/Tests/RegistryTest.php
+++ b/src/Symfony/Component/Workflow/Tests/RegistryTest.php
@@ -92,9 +92,9 @@ private function createSupportStrategy($supportedClassName)
     {
         $strategy = $this->getMockBuilder(SupportStrategyInterface::class)->getMock();
         $strategy->expects($this->any())->method('supports')
-            ->will($this->returnCallback(function ($workflow, $subject) use ($supportedClassName) {
+            ->willReturnCallback(function ($workflow, $subject) use ($supportedClassName) {
                 return $subject instanceof $supportedClassName;
-            }));
+            });
 
         return $strategy;
     }

From e83886c81193bf259768a509ebb94bfbc2bac70e Mon Sep 17 00:00:00 2001
From: Toni Peric <toniperic@users.noreply.github.com>
Date: Sat, 1 Jun 2019 15:18:31 +0200
Subject: [PATCH 09/56] Add missing translations

---
 .../Resources/translations/validators.hr.xlf  | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.hr.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.hr.xlf
index 60f02435f5f27..ccc0c0135a36d 100644
--- a/src/Symfony/Component/Validator/Resources/translations/validators.hr.xlf
+++ b/src/Symfony/Component/Validator/Resources/translations/validators.hr.xlf
@@ -334,6 +334,34 @@
                 <source>This value should be valid JSON.</source>
                 <target>Ova vrijednost treba biti validan JSON.</target>
             </trans-unit>
+            <trans-unit id="87">
+                <source>This collection should contain only unique elements.</source>
+                <target>Ova kolekcija treba sadržavati samo unikatne elemente.</target>
+            </trans-unit>
+            <trans-unit id="88">
+                <source>This value should be positive.</source>
+                <target>Ova vrijednost treba biti pozitivna.</target>
+            </trans-unit>
+            <trans-unit id="89">
+                <source>This value should be either positive or zero.</source>
+                <target>Ova vrijednost treba biti pozitivna ili jednaka nuli.</target>
+            </trans-unit>
+            <trans-unit id="90">
+                <source>This value should be negative.</source>
+                <target>Ova vrijednost treba biti negativna.</target>
+            </trans-unit>
+            <trans-unit id="91">
+                <source>This value should be either negative or zero.</source>
+                <target>Ova vrijednost treba biti negativna ili jednaka nuli.</target>
+            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>Ova vrijednost nije validna vremenska zona.</target>
+            </trans-unit>
+            <trans-unit id="93">
+                <source>This password has been leaked in a data breach, it must not be used. Please use another password.</source>
+                <target>Ova lozinka je procurila u nekom od sigurnosnih propusta, te je potrebno koristiti drugu lozinku.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

From 2b95fcaa6b308342a98f7dbd1e7ddf581d40fdb5 Mon Sep 17 00:00:00 2001
From: Massimiliano Arione <garakkio@gmail.com>
Date: Mon, 3 Jun 2019 10:51:36 +0200
Subject: [PATCH 10/56] update italian validator translation

---
 .../Resources/translations/validators.it.xlf  | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
index 235d44d1bbee9..ca0b177586612 100644
--- a/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
+++ b/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
@@ -330,6 +330,38 @@
                 <source>This Business Identifier Code (BIC) is not associated with IBAN {{ iban }}.</source>
                 <target>Questo codice identificativo bancario (BIC) non è associato all'IBAN {{ iban }}.</target>
             </trans-unit>
+            <trans-unit id="86">
+                <source>This value should be valid JSON.</source>
+                <target>Questo valore dovrebbe essere un JSON valido.</target>
+            </trans-unit>
+            <trans-unit id="87">
+                <source>This collection should contain only unique elements.</source>
+                <target>Questa collezione dovrebbe contenere solo elementi unici.</target>
+            </trans-unit>
+            <trans-unit id="88">
+                <source>This value should be positive.</source>
+                <target>Questo valore dovrebbe essere positivo.</target>
+            </trans-unit>
+            <trans-unit id="89">
+                <source>This value should be either positive or zero.</source>
+                <target>Questo valore dovrebbe essere positivo oppure zero.</target>
+            </trans-unit>
+            <trans-unit id="90">
+                <source>This value should be negative.</source>
+                <target>Questo valore dovrebbe essere negativo.</target>
+            </trans-unit>
+            <trans-unit id="91">
+                <source>This value should be either negative or zero.</source>
+                <target>Questo valore dovrebbe essere negativo oppure zero.</target>
+            </trans-unit>
+            <trans-unit id="92">
+                <source>This value is not a valid timezone.</source>
+                <target>Questo valore non è un fuso orario valido.</target>
+            </trans-unit>
+            <trans-unit id="93">
+                <source>This password has been leaked in a data breach, it must not be used. Please use another password.</source>
+                <target>Questa password è trapelata durante una compromissione di dati, non deve essere usata. Si prega di usre una password diversa.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

From b37c1a818f8cea12ff8c91b9a41626ad678b7b06 Mon Sep 17 00:00:00 2001
From: Massimiliano Arione <garakkio@gmail.com>
Date: Mon, 3 Jun 2019 11:50:31 +0200
Subject: [PATCH 11/56] fix typo in PR #31802

---
 .../Validator/Resources/translations/validators.it.xlf          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
index ca0b177586612..f4c188d1dd3aa 100644
--- a/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
+++ b/src/Symfony/Component/Validator/Resources/translations/validators.it.xlf
@@ -360,7 +360,7 @@
             </trans-unit>
             <trans-unit id="93">
                 <source>This password has been leaked in a data breach, it must not be used. Please use another password.</source>
-                <target>Questa password è trapelata durante una compromissione di dati, non deve essere usata. Si prega di usre una password diversa.</target>
+                <target>Questa password è trapelata durante una compromissione di dati, non deve essere usata. Si prega di usare una password diversa.</target>
             </trans-unit>
         </body>
     </file>

From 0e741f960064e12e3383098b80294864a8f359b6 Mon Sep 17 00:00:00 2001
From: Massimiliano Arione <garakkio@gmail.com>
Date: Mon, 3 Jun 2019 15:30:08 +0200
Subject: [PATCH 12/56] fix type hint for salt in PasswordEncoderInterface

---
 .../Security/Core/Encoder/BasePasswordEncoder.php      |  4 ++--
 .../Security/Core/Encoder/PasswordEncoderInterface.php | 10 +++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/Symfony/Component/Security/Core/Encoder/BasePasswordEncoder.php b/src/Symfony/Component/Security/Core/Encoder/BasePasswordEncoder.php
index 3c3ea1aa17366..3a5c4f0c4ba81 100644
--- a/src/Symfony/Component/Security/Core/Encoder/BasePasswordEncoder.php
+++ b/src/Symfony/Component/Security/Core/Encoder/BasePasswordEncoder.php
@@ -48,8 +48,8 @@ protected function demergePasswordAndSalt($mergedPasswordSalt)
     /**
      * Merges a password and a salt.
      *
-     * @param string $password The password to be used
-     * @param string $salt     The salt to be used
+     * @param string      $password The password to be used
+     * @param string|null $salt     The salt to be used
      *
      * @return string a merged password and salt
      *
diff --git a/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php b/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
index e0573051eb273..03cdaca44aef7 100644
--- a/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
+++ b/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
@@ -23,8 +23,8 @@ interface PasswordEncoderInterface
     /**
      * Encodes the raw password.
      *
-     * @param string $raw  The password to encode
-     * @param string $salt The salt
+     * @param string      $raw  The password to encode
+     * @param string|null $salt The salt
      *
      * @return string The encoded password
      *
@@ -36,9 +36,9 @@ public function encodePassword($raw, $salt);
     /**
      * Checks a raw password against an encoded password.
      *
-     * @param string $encoded An encoded password
-     * @param string $raw     A raw password
-     * @param string $salt    The salt
+     * @param string      $encoded An encoded password
+     * @param string      $raw     A raw password
+     * @param string|null $salt    The salt
      *
      * @return bool true if the password is valid, false otherwise
      *

From bdbac2c6e666454a743b45e0f91612593e2755bd Mon Sep 17 00:00:00 2001
From: Robert Kopera <robertkoprea@gmail.com>
Date: Tue, 7 May 2019 15:35:36 +0200
Subject: [PATCH 13/56] [Security] added support for updated \"distinguished
 name\" format in x509 authentication

---
 .../Http/Firewall/X509AuthenticationListener.php    |  5 ++++-
 .../Firewall/X509AuthenticationListenerTest.php     | 13 +++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/Symfony/Component/Security/Http/Firewall/X509AuthenticationListener.php b/src/Symfony/Component/Security/Http/Firewall/X509AuthenticationListener.php
index d17ef7464e7f3..76b1cad349bc2 100644
--- a/src/Symfony/Component/Security/Http/Firewall/X509AuthenticationListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/X509AuthenticationListener.php
@@ -44,7 +44,10 @@ protected function getPreAuthenticatedData(Request $request)
         $user = null;
         if ($request->server->has($this->userKey)) {
             $user = $request->server->get($this->userKey);
-        } elseif ($request->server->has($this->credentialKey) && preg_match('#/emailAddress=(.+\@.+\..+)(/|$)#', $request->server->get($this->credentialKey), $matches)) {
+        } elseif (
+            $request->server->has($this->credentialKey)
+            && preg_match('#emailAddress=(.+\@.+\.[^,/]+)($|,|/)#', $request->server->get($this->credentialKey), $matches)
+        ) {
             $user = $matches[1];
         }
 
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
index c55eaae0f3157..577ca7c38f1b3 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
@@ -56,9 +56,8 @@ public static function dataProviderGetPreAuthenticatedData()
     /**
      * @dataProvider dataProviderGetPreAuthenticatedDataNoUser
      */
-    public function testGetPreAuthenticatedDataNoUser($emailAddress)
+    public function testGetPreAuthenticatedDataNoUser($emailAddress, $credentials)
     {
-        $credentials = 'CN=Sample certificate DN/emailAddress='.$emailAddress;
         $request = new Request([], [], [], [], [], ['SSL_CLIENT_S_DN' => $credentials]);
 
         $tokenStorage = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface')->getMock();
@@ -76,10 +75,12 @@ public function testGetPreAuthenticatedDataNoUser($emailAddress)
 
     public static function dataProviderGetPreAuthenticatedDataNoUser()
     {
-        return [
-            'basicEmailAddress' => ['cert@example.com'],
-            'emailAddressWithPlusSign' => ['cert+something@example.com'],
-        ];
+        yield ['cert@example.com', 'CN=Sample certificate DN/emailAddress=cert@example.com'];
+        yield ['cert+something@example.com', 'CN=Sample certificate DN/emailAddress=cert+something@example.com'];
+        yield ['cert@example.com', 'CN=Sample certificate DN,emailAddress=cert@example.com'];
+        yield ['cert+something@example.com', 'CN=Sample certificate DN,emailAddress=cert+something@example.com'];
+        yield ['cert+something@example.com', 'emailAddress=cert+something@example.com,CN=Sample certificate DN'];
+        yield ['cert+something@example.com', 'emailAddress=cert+something@example.com'];
     }
 
     /**

From e6e63017f07ef1830f1e9d3818120ed0a5593d32 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Tue, 4 Jun 2019 20:42:06 +0200
Subject: [PATCH 14/56] [HttpFoundation] work around PHP 7.3 bug related to
 json_encode()

---
 .../Console/Descriptor/JsonDescriptor.php                | 6 ++++++
 .../Component/Console/Descriptor/JsonDescriptor.php      | 9 ++++++++-
 .../Component/Form/Console/Descriptor/JsonDescriptor.php | 6 ++++++
 src/Symfony/Component/HttpFoundation/JsonResponse.php    | 5 +++++
 src/Symfony/Component/Serializer/Encoder/JsonEncode.php  | 5 +++++
 .../Component/Translation/Dumper/JsonFileDumper.php      | 5 +++++
 6 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
index 6b05612ff53d9..2e00fc2262317 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
@@ -185,6 +185,12 @@ protected function describeContainerParameter($parameter, array $options = [])
     private function writeData(array $data, array $options)
     {
         $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
+
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
+            // Work around https://bugs.php.net/77997
+            json_encode(null);
+        }
+
         $this->write(json_encode($data, $flags | JSON_PRETTY_PRINT)."\n");
     }
 
diff --git a/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
index 197b843d4b76c..529fb82c4029f 100644
--- a/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
@@ -97,7 +97,14 @@ protected function describeApplication(Application $application, array $options
      */
     private function writeData(array $data, array $options)
     {
-        $this->write(json_encode($data, isset($options['json_encoding']) ? $options['json_encoding'] : 0));
+        $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
+
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
+            // Work around https://bugs.php.net/77997
+            json_encode(null);
+        }
+
+        $this->write(json_encode($data, $flags));
     }
 
     /**
diff --git a/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
index ab518dbfeed12..00a5425866b29 100644
--- a/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
@@ -82,6 +82,12 @@ protected function describeOption(OptionsResolver $optionsResolver, array $optio
     private function writeData(array $data, array $options)
     {
         $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
+
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
+            // Work around https://bugs.php.net/77997
+            json_encode(null);
+        }
+
         $this->output->write(json_encode($data, $flags | JSON_PRETTY_PRINT)."\n");
     }
 
diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index 6fb32ee41bdac..52f55f7486c97 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -153,6 +153,11 @@ public function setData($data = [])
                     restore_error_handler();
                 }
             } else {
+                if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $this->encodingOptions)) {
+                    // Work around https://bugs.php.net/77997
+                    json_encode(null);
+                }
+
                 try {
                     $data = json_encode($data, $this->encodingOptions);
                 } catch (\Exception $e) {
diff --git a/src/Symfony/Component/Serializer/Encoder/JsonEncode.php b/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
index 9b07d709b8cff..e5b48757dd0c2 100644
--- a/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
+++ b/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
@@ -36,6 +36,11 @@ public function encode($data, $format, array $context = [])
     {
         $context = $this->resolveContext($context);
 
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $context['json_encode_options'])) {
+            // Work around https://bugs.php.net/77997
+            json_encode(null);
+        }
+
         $encodedJson = json_encode($data, $context['json_encode_options']);
 
         if (JSON_ERROR_NONE !== json_last_error() && (false === $encodedJson || !($context['json_encode_options'] & JSON_PARTIAL_OUTPUT_ON_ERROR))) {
diff --git a/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php b/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
index 3ee446dc73183..2a8d23d477e21 100644
--- a/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
+++ b/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
@@ -31,6 +31,11 @@ public function formatCatalogue(MessageCatalogue $messages, $domain, array $opti
             $flags = \defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
         }
 
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
+            // Work around https://bugs.php.net/77997
+            json_encode(null);
+        }
+
         return json_encode($messages->all($domain), $flags);
     }
 

From b5e6c99a3b1aa46ffeb859111e5b0fde4678bde4 Mon Sep 17 00:00:00 2001
From: Ivo <ivo@wax.be>
Date: Wed, 5 Jun 2019 10:24:41 +0200
Subject: [PATCH 15/56] [HttpFoundation] Fixed case-sensitive handling of
 cache-control header in RedirectResponse constructor.

---
 src/Symfony/Component/HttpFoundation/RedirectResponse.php     | 2 +-
 .../Component/HttpFoundation/Tests/RedirectResponseTest.php   | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/RedirectResponse.php b/src/Symfony/Component/HttpFoundation/RedirectResponse.php
index 5e1dfe58507fb..51fd869abea25 100644
--- a/src/Symfony/Component/HttpFoundation/RedirectResponse.php
+++ b/src/Symfony/Component/HttpFoundation/RedirectResponse.php
@@ -42,7 +42,7 @@ public function __construct($url, $status = 302, $headers = [])
             throw new \InvalidArgumentException(sprintf('The HTTP status code is not a redirect ("%s" given).', $status));
         }
 
-        if (301 == $status && !\array_key_exists('cache-control', $headers)) {
+        if (301 == $status && !\array_key_exists('cache-control', array_change_key_case($headers, \CASE_LOWER))) {
             $this->headers->remove('cache-control');
         }
     }
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
index 64c3e73ee21af..5f6a8ac0883f4 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
@@ -91,6 +91,10 @@ public function testCacheHeaders()
         $this->assertFalse($response->headers->hasCacheControlDirective('no-cache'));
         $this->assertTrue($response->headers->hasCacheControlDirective('max-age'));
 
+        $response = new RedirectResponse('foo.bar', 301, ['Cache-Control' => 'max-age=86400']);
+        $this->assertFalse($response->headers->hasCacheControlDirective('no-cache'));
+        $this->assertTrue($response->headers->hasCacheControlDirective('max-age'));
+
         $response = new RedirectResponse('foo.bar', 302);
         $this->assertTrue($response->headers->hasCacheControlDirective('no-cache'));
     }

From d18f42c409b49771a5b8bb9c02de6a404e3260d1 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 5 Jun 2019 13:22:47 +0200
Subject: [PATCH 16/56] Fix json-encoding when JSON_THROW_ON_ERROR is used

---
 .../Console/Descriptor/JsonDescriptor.php              |  5 -----
 .../Component/Console/Descriptor/JsonDescriptor.php    |  5 -----
 .../Form/Console/Descriptor/JsonDescriptor.php         |  5 -----
 src/Symfony/Component/HttpFoundation/JsonResponse.php  |  9 ++++-----
 .../Component/Serializer/Encoder/JsonDecode.php        | 10 +++++++++-
 .../Component/Serializer/Encoder/JsonEncode.php        |  7 +++----
 .../Component/Translation/Dumper/JsonFileDumper.php    |  5 -----
 7 files changed, 16 insertions(+), 30 deletions(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
index 2e00fc2262317..c18d278688193 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
@@ -186,11 +186,6 @@ private function writeData(array $data, array $options)
     {
         $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
 
-        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
-            // Work around https://bugs.php.net/77997
-            json_encode(null);
-        }
-
         $this->write(json_encode($data, $flags | JSON_PRETTY_PRINT)."\n");
     }
 
diff --git a/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
index 529fb82c4029f..f5a143800b27c 100644
--- a/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Component/Console/Descriptor/JsonDescriptor.php
@@ -99,11 +99,6 @@ private function writeData(array $data, array $options)
     {
         $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
 
-        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
-            // Work around https://bugs.php.net/77997
-            json_encode(null);
-        }
-
         $this->write(json_encode($data, $flags));
     }
 
diff --git a/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
index 00a5425866b29..428586965ba64 100644
--- a/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Component/Form/Console/Descriptor/JsonDescriptor.php
@@ -83,11 +83,6 @@ private function writeData(array $data, array $options)
     {
         $flags = isset($options['json_encoding']) ? $options['json_encoding'] : 0;
 
-        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
-            // Work around https://bugs.php.net/77997
-            json_encode(null);
-        }
-
         $this->output->write(json_encode($data, $flags | JSON_PRETTY_PRINT)."\n");
     }
 
diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index 52f55f7486c97..24798eea42b32 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -153,11 +153,6 @@ public function setData($data = [])
                     restore_error_handler();
                 }
             } else {
-                if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $this->encodingOptions)) {
-                    // Work around https://bugs.php.net/77997
-                    json_encode(null);
-                }
-
                 try {
                     $data = json_encode($data, $this->encodingOptions);
                 } catch (\Exception $e) {
@@ -166,6 +161,10 @@ public function setData($data = [])
                     }
                     throw $e;
                 }
+
+                if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $this->encodingOptions)) {
+                    return $this->setJson($data);
+                }
             }
         }
 
diff --git a/src/Symfony/Component/Serializer/Encoder/JsonDecode.php b/src/Symfony/Component/Serializer/Encoder/JsonDecode.php
index 1d0b86afc5d07..a55f1232e7e98 100644
--- a/src/Symfony/Component/Serializer/Encoder/JsonDecode.php
+++ b/src/Symfony/Component/Serializer/Encoder/JsonDecode.php
@@ -72,7 +72,15 @@ public function decode($data, $format, array $context = [])
         $recursionDepth = $context['json_decode_recursion_depth'];
         $options = $context['json_decode_options'];
 
-        $decodedData = json_decode($data, $associative, $recursionDepth, $options);
+        try {
+            $decodedData = json_decode($data, $associative, $recursionDepth, $options);
+        } catch (\JsonException $e) {
+            throw new NotEncodableValueException($e->getMessage(), 0, $e);
+        }
+
+        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $options)) {
+            return $decodedData;
+        }
 
         if (JSON_ERROR_NONE !== json_last_error()) {
             throw new NotEncodableValueException(json_last_error_msg());
diff --git a/src/Symfony/Component/Serializer/Encoder/JsonEncode.php b/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
index e5b48757dd0c2..76e532c4b7a34 100644
--- a/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
+++ b/src/Symfony/Component/Serializer/Encoder/JsonEncode.php
@@ -36,13 +36,12 @@ public function encode($data, $format, array $context = [])
     {
         $context = $this->resolveContext($context);
 
+        $encodedJson = json_encode($data, $context['json_encode_options']);
+
         if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $context['json_encode_options'])) {
-            // Work around https://bugs.php.net/77997
-            json_encode(null);
+            return $encodedJson;
         }
 
-        $encodedJson = json_encode($data, $context['json_encode_options']);
-
         if (JSON_ERROR_NONE !== json_last_error() && (false === $encodedJson || !($context['json_encode_options'] & JSON_PARTIAL_OUTPUT_ON_ERROR))) {
             throw new NotEncodableValueException(json_last_error_msg());
         }
diff --git a/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php b/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
index 2a8d23d477e21..3ee446dc73183 100644
--- a/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
+++ b/src/Symfony/Component/Translation/Dumper/JsonFileDumper.php
@@ -31,11 +31,6 @@ public function formatCatalogue(MessageCatalogue $messages, $domain, array $opti
             $flags = \defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
         }
 
-        if (\PHP_VERSION_ID >= 70300 && (JSON_THROW_ON_ERROR & $flags)) {
-            // Work around https://bugs.php.net/77997
-            json_encode(null);
-        }
-
         return json_encode($messages->all($domain), $flags);
     }
 

From fd17ff005de2c9ef17a0d7667e81cd177eb00db6 Mon Sep 17 00:00:00 2001
From: Julien Manganne <julien.manganne@gmail.com>
Date: Wed, 5 Jun 2019 17:56:22 +0200
Subject: [PATCH 17/56] Add a missing quote in getValue() DocBlock

---
 .../Component/PropertyAccess/PropertyAccessorInterface.php      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/PropertyAccess/PropertyAccessorInterface.php b/src/Symfony/Component/PropertyAccess/PropertyAccessorInterface.php
index 51fa0cc76f7db..aa81bfc42d983 100644
--- a/src/Symfony/Component/PropertyAccess/PropertyAccessorInterface.php
+++ b/src/Symfony/Component/PropertyAccess/PropertyAccessorInterface.php
@@ -58,7 +58,7 @@ public function setValue(&$objectOrArray, $propertyPath, $value);
      *
      *     $propertyAccessor = PropertyAccess::createPropertyAccessor();
      *
-     *     echo $propertyAccessor->getValue($object, 'child.name);
+     *     echo $propertyAccessor->getValue($object, 'child.name');
      *     // equals echo $object->getChild()->getName();
      *
      * This method first tries to find a public getter for each property in the

From a6025ab5ee0129329a4bc355edaa70743104293d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=D1=80=20?=
 =?UTF-8?q?=D0=9B=D0=B8?= <aweelex@gmail.com>
Date: Thu, 6 Jun 2019 15:54:42 +0500
Subject: [PATCH 18/56] Change IntlTimeZone to DateTimeZone

---
 .../DateTimeToLocalizedStringTransformer.php               | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformer.php b/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformer.php
index 36c19970f280c..6ca20106fa399 100644
--- a/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformer.php
+++ b/src/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformer.php
@@ -162,11 +162,8 @@ protected function getIntlDateFormatter($ignoreTimezone = false)
     {
         $dateFormat = $this->dateFormat;
         $timeFormat = $this->timeFormat;
-        $timezone = $ignoreTimezone ? 'UTC' : $this->outputTimezone;
-        if (class_exists('IntlTimeZone', false)) {
-            // see https://bugs.php.net/bug.php?id=66323
-            $timezone = \IntlTimeZone::createTimeZone($timezone);
-        }
+        $timezone = new \DateTimeZone($ignoreTimezone ? 'UTC' : $this->outputTimezone);
+
         $calendar = $this->calendar;
         $pattern = $this->pattern;
 

From 51b6bd886ac495a00655664fbf94d14b5f230deb Mon Sep 17 00:00:00 2001
From: Maxime Steinhausser <maxime.steinhausser@elao.com>
Date: Fri, 7 Jun 2019 10:45:31 +0200
Subject: [PATCH 19/56] [Serializer] Fix DataUriNormalizer docblock & composer
 suggest section

---
 .../Component/Serializer/Normalizer/DataUriNormalizer.php       | 2 +-
 src/Symfony/Component/Serializer/composer.json                  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/Serializer/Normalizer/DataUriNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/DataUriNormalizer.php
index 0284ca6ebcc41..185b44be4eeaa 100644
--- a/src/Symfony/Component/Serializer/Normalizer/DataUriNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/DataUriNormalizer.php
@@ -32,7 +32,7 @@ class DataUriNormalizer implements NormalizerInterface, DenormalizerInterface
     ];
 
     /**
-     * @var MimeTypeGuesserInterface
+     * @var MimeTypeGuesserInterface|null
      */
     private $mimeTypeGuesser;
 
diff --git a/src/Symfony/Component/Serializer/composer.json b/src/Symfony/Component/Serializer/composer.json
index e6282b14debe1..964f1b7bfd6ba 100644
--- a/src/Symfony/Component/Serializer/composer.json
+++ b/src/Symfony/Component/Serializer/composer.json
@@ -44,7 +44,7 @@
         "symfony/yaml": "For using the default YAML mapping loader.",
         "symfony/config": "For using the XML mapping loader.",
         "symfony/property-access": "For using the ObjectNormalizer.",
-        "symfony/http-foundation": "To use the DataUriNormalizer.",
+        "symfony/http-foundation": "For using a MIME type guesser within the DataUriNormalizer.",
         "doctrine/annotations": "For using the annotation mapping. You will also need doctrine/cache.",
         "doctrine/cache": "For using the default cached annotation reader and metadata cache."
     },

From 5e1ffb8d7ff3c043fa4e32e94dcf82338b2c78bf Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Fri, 7 Jun 2019 19:50:04 +0200
Subject: [PATCH 20/56] [travis] increase concurrency

---
 .travis.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 405eb68e90ac2..3a022159513e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -260,12 +260,12 @@ install:
               tfold 'phpunit install' ./phpunit install
           fi
           if [[ $deps = high ]]; then
-              echo "$COMPONENTS" | parallel --gnu -j10% "tfold {} 'cd {} && $COMPOSER_UP && $PHPUNIT_X$LEGACY'"
+              echo "$COMPONENTS" | parallel --gnu "tfold {} 'cd {} && $COMPOSER_UP && $PHPUNIT_X$LEGACY'"
           elif [[ $deps = low ]]; then
               [[ -e ~/php-ext/composer-lowest.lock.tar ]] && tar -xf ~/php-ext/composer-lowest.lock.tar
               tar -cf ~/php-ext/composer-lowest.lock.tar --files-from /dev/null
               php .github/rm-invalid-lowest-lock-files.php $COMPONENTS
-              echo "$COMPONENTS" | parallel --gnu -j10% "tfold {} 'cd {} && ([ -e composer.lock ] && ${COMPOSER_UP/update/install} || $COMPOSER_UP --prefer-lowest --prefer-stable) && $PHPUNIT_X'"
+              echo "$COMPONENTS" | parallel --gnu "tfold {} 'cd {} && ([ -e composer.lock ] && ${COMPOSER_UP/update/install} || $COMPOSER_UP --prefer-lowest --prefer-stable) && $PHPUNIT_X'"
               echo "$COMPONENTS" | xargs -n1 -I{} tar --append -f ~/php-ext/composer-lowest.lock.tar {}/composer.lock
           elif [[ $PHP = hhvm* ]]; then
               rm src/Symfony/Bridge/PhpUnit -Rf

From 07ca9f4831a1a77329d75ff4f85a0584db79795d Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Fri, 7 Jun 2019 22:38:23 +0200
Subject: [PATCH 21/56] [SecurityBundle] add missing contraint for
 symfony/config dep

---
 src/Symfony/Bundle/SecurityBundle/composer.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Symfony/Bundle/SecurityBundle/composer.json b/src/Symfony/Bundle/SecurityBundle/composer.json
index 57d313d87142c..6faf93306230c 100644
--- a/src/Symfony/Bundle/SecurityBundle/composer.json
+++ b/src/Symfony/Bundle/SecurityBundle/composer.json
@@ -18,6 +18,7 @@
     "require": {
         "php": "^5.5.9|>=7.0.8",
         "ext-xml": "*",
+        "symfony/config": "~3.4|~4.0",
         "symfony/security": "~3.4.15|~4.0.15|^4.1.4",
         "symfony/dependency-injection": "^3.4.3|^4.0.3",
         "symfony/http-kernel": "~3.4|~4.0",

From 48093f4a13cf42540356442f53ebfa6c309630bc Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Sun, 9 Jun 2019 16:27:26 +0200
Subject: [PATCH 22/56] Fix reporting unsilenced deprecations from insulated
 tests

---
 .../Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php        | 3 ++-
 src/Symfony/Component/BrowserKit/Client.php                    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
index 2c7391a00bbda..481a860aab132 100644
--- a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
@@ -284,7 +284,8 @@ public function endTest($test, $time)
             foreach ($deprecations ? unserialize($deprecations) : array() as $deprecation) {
                 $error = serialize(array('deprecation' => $deprecation[1], 'class' => $className, 'method' => $test->getName(false), 'triggering_file' => isset($deprecation[2]) ? $deprecation[2] : null));
                 if ($deprecation[0]) {
-                    @trigger_error($error, E_USER_DEPRECATED);
+                    // unsilenced on purpose
+                    trigger_error($error, E_USER_DEPRECATED);
                 } else {
                     @trigger_error($error, E_USER_DEPRECATED);
                 }
diff --git a/src/Symfony/Component/BrowserKit/Client.php b/src/Symfony/Component/BrowserKit/Client.php
index 98553353d8ce3..6c3bcc1663981 100644
--- a/src/Symfony/Component/BrowserKit/Client.php
+++ b/src/Symfony/Component/BrowserKit/Client.php
@@ -361,7 +361,8 @@ protected function doRequestInProcess($request)
             unlink($deprecationsFile);
             foreach ($deprecations ? unserialize($deprecations) : [] as $deprecation) {
                 if ($deprecation[0]) {
-                    @trigger_error($deprecation[1], E_USER_DEPRECATED);
+                    // unsilenced on purpose
+                    trigger_error($deprecation[1], E_USER_DEPRECATED);
                 } else {
                     @trigger_error($deprecation[1], E_USER_DEPRECATED);
                 }

From 9ad324ba2979fba6481dfc76258b8872a684ad0a Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Sun, 9 Jun 2019 16:44:28 +0200
Subject: [PATCH 23/56] [Form] test case is not legacy

---
 .../Form/Tests/Extension/Core/Type/ChoiceTypeTest.php        | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/ChoiceTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/ChoiceTypeTest.php
index 4a7f006f6f2ec..bb7cc0ca7f757 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/Type/ChoiceTypeTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/Type/ChoiceTypeTest.php
@@ -725,10 +725,7 @@ public function testSubmitMultipleChoiceExpandedWithEmptyDataAndInitialData()
         $this->assertSame(['test'], $form->getData());
     }
 
-    /**
-     * @group legacy
-     */
-    public function testLegacyNullChoices()
+    public function testNullChoices()
     {
         $form = $this->factory->create(static::TESTED_TYPE, null, [
             'multiple' => false,

From 1872a5af3940fa94a3cd404f17ad36bf9a4d5a21 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Sun, 9 Jun 2019 18:36:33 +0200
Subject: [PATCH 24/56] [WebProfilerBundle] fix FC with HttpFoundation v5

---
 .../Controller/ProfilerController.php                | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/Symfony/Bundle/WebProfilerBundle/Controller/ProfilerController.php b/src/Symfony/Bundle/WebProfilerBundle/Controller/ProfilerController.php
index d798c03214556..8021451601b38 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Controller/ProfilerController.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Controller/ProfilerController.php
@@ -140,9 +140,7 @@ public function toolbarAction(Request $request, $token)
             throw new NotFoundHttpException('The profiler must be enabled.');
         }
 
-        $session = $request->getSession();
-
-        if (null !== $session && $session->isStarted() && $session->getFlashBag() instanceof AutoExpireFlashBag) {
+        if ($request->hasSession() && ($session = $request->getSession()) && $session->isStarted() && $session->getFlashBag() instanceof AutoExpireFlashBag) {
             // keep current flashes for one more request if using AutoExpireFlashBag
             $session->getFlashBag()->setAll($session->getFlashBag()->peekAll());
         }
@@ -199,7 +197,7 @@ public function searchBarAction(Request $request)
             $this->cspHandler->disableCsp();
         }
 
-        if (null === $session = $request->getSession()) {
+        if (!$request->hasSession()) {
             $ip =
             $method =
             $statusCode =
@@ -209,6 +207,8 @@ public function searchBarAction(Request $request)
             $limit =
             $token = null;
         } else {
+            $session = $request->getSession();
+
             $ip = $request->query->get('ip', $session->get('_profiler_search_ip'));
             $method = $request->query->get('method', $session->get('_profiler_search_method'));
             $statusCode = $request->query->get('status_code', $session->get('_profiler_search_status_code'));
@@ -308,7 +308,9 @@ public function searchAction(Request $request)
         $limit = $request->query->get('limit');
         $token = $request->query->get('token');
 
-        if (null !== $session = $request->getSession()) {
+        if ($request->hasSession()) {
+            $session = $request->getSession();
+
             $session->set('_profiler_search_ip', $ip);
             $session->set('_profiler_search_method', $method);
             $session->set('_profiler_search_status_code', $statusCode);

From 48be09f37eb61226e4e388c74771b1b9229d29c7 Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Tue, 11 Jun 2019 12:48:01 +0200
Subject: [PATCH 25/56] [HttpKernel] Remove TestEventDispatcher.

---
 .../Tests/Fixtures/TestEventDispatcher.php    | 32 -------------------
 1 file changed, 32 deletions(-)
 delete mode 100644 src/Symfony/Component/HttpKernel/Tests/Fixtures/TestEventDispatcher.php

diff --git a/src/Symfony/Component/HttpKernel/Tests/Fixtures/TestEventDispatcher.php b/src/Symfony/Component/HttpKernel/Tests/Fixtures/TestEventDispatcher.php
deleted file mode 100644
index dc9c9166f9f25..0000000000000
--- a/src/Symfony/Component/HttpKernel/Tests/Fixtures/TestEventDispatcher.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\HttpKernel\Tests\Fixtures;
-
-use Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcherInterface;
-use Symfony\Component\EventDispatcher\EventDispatcher;
-
-class TestEventDispatcher extends EventDispatcher implements TraceableEventDispatcherInterface
-{
-    public function getCalledListeners()
-    {
-        return ['foo'];
-    }
-
-    public function getNotCalledListeners()
-    {
-        return ['bar'];
-    }
-
-    public function reset()
-    {
-    }
-}

From 8e04222976043af4b5a23c63ecbc3f35891d7db0 Mon Sep 17 00:00:00 2001
From: Tobias Schultze <webmaster@tubo-world.de>
Date: Wed, 12 Jun 2019 03:01:18 +0200
Subject: [PATCH 26/56] [Routing] fix absolute url generation when scheme is
 not known

---
 .../Routing/Generator/UrlGenerator.php        | 20 ++++----
 .../Tests/Generator/UrlGeneratorTest.php      | 48 +++++++++++++++----
 2 files changed, 51 insertions(+), 17 deletions(-)

diff --git a/src/Symfony/Component/Routing/Generator/UrlGenerator.php b/src/Symfony/Component/Routing/Generator/UrlGenerator.php
index b87f4bb5c45f7..3a826d86f60a9 100644
--- a/src/Symfony/Component/Routing/Generator/UrlGenerator.php
+++ b/src/Symfony/Component/Routing/Generator/UrlGenerator.php
@@ -222,16 +222,18 @@ protected function doGenerate($variables, $defaults, $requirements, $tokens, $pa
             }
         }
 
-        if ((self::ABSOLUTE_URL === $referenceType || self::NETWORK_PATH === $referenceType) && !empty($host)) {
-            $port = '';
-            if ('http' === $scheme && 80 != $this->context->getHttpPort()) {
-                $port = ':'.$this->context->getHttpPort();
-            } elseif ('https' === $scheme && 443 != $this->context->getHttpsPort()) {
-                $port = ':'.$this->context->getHttpsPort();
-            }
+        if (self::ABSOLUTE_URL === $referenceType || self::NETWORK_PATH === $referenceType) {
+            if ('' !== $host || ('' !== $scheme && 'http' !== $scheme && 'https' !== $scheme)) {
+                $port = '';
+                if ('http' === $scheme && 80 !== $this->context->getHttpPort()) {
+                    $port = ':'.$this->context->getHttpPort();
+                } elseif ('https' === $scheme && 443 !== $this->context->getHttpsPort()) {
+                    $port = ':'.$this->context->getHttpsPort();
+                }
 
-            $schemeAuthority = self::NETWORK_PATH === $referenceType ? '//' : "$scheme://";
-            $schemeAuthority .= $host.$port;
+                $schemeAuthority = self::NETWORK_PATH === $referenceType || '' === $scheme ? '//' : "$scheme://";
+                $schemeAuthority .= $host.$port;
+            }
         }
 
         if (self::RELATIVE_PATH === $referenceType) {
diff --git a/src/Symfony/Component/Routing/Tests/Generator/UrlGeneratorTest.php b/src/Symfony/Component/Routing/Tests/Generator/UrlGeneratorTest.php
index 7f64a1f378326..a4d754cb14a6c 100644
--- a/src/Symfony/Component/Routing/Tests/Generator/UrlGeneratorTest.php
+++ b/src/Symfony/Component/Routing/Tests/Generator/UrlGeneratorTest.php
@@ -480,28 +480,27 @@ public function testHostIsCaseInsensitive()
 
     public function testDefaultHostIsUsedWhenContextHostIsEmpty()
     {
-        $routes = $this->getRoutes('test', new Route('/route', ['domain' => 'my.fallback.host'], ['domain' => '.+'], [], '{domain}', ['http']));
+        $routes = $this->getRoutes('test', new Route('/path', ['domain' => 'my.fallback.host'], ['domain' => '.+'], [], '{domain}'));
 
         $generator = $this->getGenerator($routes);
         $generator->getContext()->setHost('');
 
-        $this->assertSame('http://my.fallback.host/app.php/route', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
+        $this->assertSame('http://my.fallback.host/app.php/path', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
     }
 
-    public function testDefaultHostIsUsedWhenContextHostIsEmptyAndSchemeIsNot()
+    public function testDefaultHostIsUsedWhenContextHostIsEmptyAndPathReferenceType()
     {
-        $routes = $this->getRoutes('test', new Route('/route', ['domain' => 'my.fallback.host'], ['domain' => '.+'], [], '{domain}', ['http', 'https']));
+        $routes = $this->getRoutes('test', new Route('/path', ['domain' => 'my.fallback.host'], ['domain' => '.+'], [], '{domain}'));
 
         $generator = $this->getGenerator($routes);
         $generator->getContext()->setHost('');
-        $generator->getContext()->setScheme('https');
 
-        $this->assertSame('https://my.fallback.host/app.php/route', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
+        $this->assertSame('//my.fallback.host/app.php/path', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_PATH));
     }
 
-    public function testAbsoluteUrlFallbackToRelativeIfHostIsEmptyAndSchemeIsNot()
+    public function testAbsoluteUrlFallbackToPathIfHostIsEmptyAndSchemeIsHttp()
     {
-        $routes = $this->getRoutes('test', new Route('/route', [], [], [], '', ['http', 'https']));
+        $routes = $this->getRoutes('test', new Route('/route'));
 
         $generator = $this->getGenerator($routes);
         $generator->getContext()->setHost('');
@@ -510,6 +509,39 @@ public function testAbsoluteUrlFallbackToRelativeIfHostIsEmptyAndSchemeIsNot()
         $this->assertSame('/app.php/route', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
     }
 
+    public function testAbsoluteUrlFallbackToNetworkIfSchemeIsEmptyAndHostIsNot()
+    {
+        $routes = $this->getRoutes('test', new Route('/path'));
+
+        $generator = $this->getGenerator($routes);
+        $generator->getContext()->setHost('example.com');
+        $generator->getContext()->setScheme('');
+
+        $this->assertSame('//example.com/app.php/path', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
+    }
+
+    public function testAbsoluteUrlFallbackToPathIfSchemeAndHostAreEmpty()
+    {
+        $routes = $this->getRoutes('test', new Route('/path'));
+
+        $generator = $this->getGenerator($routes);
+        $generator->getContext()->setHost('');
+        $generator->getContext()->setScheme('');
+
+        $this->assertSame('/app.php/path', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
+    }
+
+    public function testAbsoluteUrlWithNonHttpSchemeAndEmptyHost()
+    {
+        $routes = $this->getRoutes('test', new Route('/path', [], [], [], '', ['file']));
+
+        $generator = $this->getGenerator($routes);
+        $generator->getContext()->setBaseUrl('');
+        $generator->getContext()->setHost('');
+
+        $this->assertSame('file:///path', $generator->generate('test', [], UrlGeneratorInterface::ABSOLUTE_URL));
+    }
+
     public function testGenerateNetworkPath()
     {
         $routes = $this->getRoutes('test', new Route('/{name}', [], [], [], '{locale}.example.com', ['http']));

From a9705a014393be7e789643aef621147126e8d627 Mon Sep 17 00:00:00 2001
From: Tomas <norkunas.tom@gmail.com>
Date: Wed, 12 Jun 2019 07:10:29 +0300
Subject: [PATCH 27/56] Fix AuthenticationException::getToken typehint

---
 .../Security/Core/Exception/AuthenticationException.php         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php b/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
index 2c6c7344a467f..f79cf3ecf2ac9 100644
--- a/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
+++ b/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
@@ -26,7 +26,7 @@ class AuthenticationException extends \RuntimeException implements \Serializable
     /**
      * Get the token.
      *
-     * @return TokenInterface
+     * @return TokenInterface|null
      */
     public function getToken()
     {

From 106b348d3d2ead35e7f9121b94558666992e07db Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Thu, 13 Jun 2019 12:34:15 +0200
Subject: [PATCH 28/56] fixed CS

---
 .php_cs.dist                                  |  2 +-
 .../Doctrine/Test/DoctrineTestHelper.php      |  2 +-
 .../Constraints/UniqueEntityValidator.php     |  2 +-
 .../LazyProxy/PhpDumper/ProxyDumper.php       |  4 +--
 .../LazyProxy/PhpDumper/ProxyDumperTest.php   |  2 +-
 .../Twig/Tests/Command/DebugCommandTest.php   |  8 +++---
 .../Bridge/Twig/UndefinedCallableHandler.php  |  2 +-
 .../Component/Cache/Traits/PhpArrayTrait.php  |  2 +-
 .../Component/Cache/Traits/PhpFilesTrait.php  |  2 +-
 .../Component/Debug/DebugClassLoader.php      | 26 +++++++++----------
 .../Component/Filesystem/Filesystem.php       |  6 ++---
 .../Storage/Handler/PdoSessionHandler.php     |  2 +-
 .../DataCollector/TimeDataCollector.php       |  2 +-
 .../HttpCache/ResponseCacheStrategy.php       |  6 ++---
 .../HttpCache/SubRequestHandler.php           |  2 +-
 .../DataCollector/TimeDataCollectorTest.php   |  2 +-
 .../Authentication/Token/AbstractToken.php    |  2 +-
 .../Authentication/Token/AnonymousToken.php   |  2 +-
 .../Token/PreAuthenticatedToken.php           |  2 +-
 .../Authentication/Token/RememberMeToken.php  |  2 +-
 .../Token/UsernamePasswordToken.php           |  2 +-
 .../Core/Encoder/Argon2iPasswordEncoder.php   | 10 +++----
 .../Core/Exception/AccountStatusException.php |  2 +-
 .../Exception/AuthenticationException.php     |  2 +-
 ...stomUserMessageAuthenticationException.php |  2 +-
 .../Exception/UsernameNotFoundException.php   |  2 +-
 .../Token/AbstractTokenTest.php               |  2 +-
 .../Token/PostAuthenticationGuardToken.php    |  2 +-
 .../SimpleFormAuthenticationListener.php      |  2 +-
 ...namePasswordFormAuthenticationListener.php |  2 +-
 .../Normalizer/AbstractNormalizer.php         |  2 +-
 .../Normalizer/AbstractObjectNormalizer.php   |  2 +-
 .../Normalizer/ObjectNormalizer.php           |  2 +-
 .../Component/Serializer/Serializer.php       |  8 +++---
 .../Resources/bin/translation-status.php      |  8 +++---
 .../Component/VarDumper/Cloner/VarCloner.php  | 20 +++++++-------
 36 files changed, 75 insertions(+), 75 deletions(-)

diff --git a/.php_cs.dist b/.php_cs.dist
index 8523be670698e..85c75692eb44f 100644
--- a/.php_cs.dist
+++ b/.php_cs.dist
@@ -15,7 +15,7 @@ return PhpCsFixer\Config::create()
         'ordered_imports' => true,
         'protected_to_private' => false,
         // Part of @Symfony:risky in PHP-CS-Fixer 2.13.0. To be removed from the config file once upgrading
-        'native_function_invocation' => ['include' => ['@compiler_optimized'], 'scope' => 'namespaced'],
+        'native_function_invocation' => ['include' => ['@compiler_optimized'], 'scope' => 'namespaced', 'strict' => true],
         // Part of future @Symfony ruleset in PHP-CS-Fixer To be removed from the config file once upgrading
         'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
     ])
diff --git a/src/Symfony/Bridge/Doctrine/Test/DoctrineTestHelper.php b/src/Symfony/Bridge/Doctrine/Test/DoctrineTestHelper.php
index 3f6ffeebb6e2d..24da0b8deec02 100644
--- a/src/Symfony/Bridge/Doctrine/Test/DoctrineTestHelper.php
+++ b/src/Symfony/Bridge/Doctrine/Test/DoctrineTestHelper.php
@@ -58,7 +58,7 @@ public static function createTestConfiguration()
         $config = new Configuration();
         $config->setEntityNamespaces(['SymfonyTestsDoctrine' => 'Symfony\Bridge\Doctrine\Tests\Fixtures']);
         $config->setAutoGenerateProxyClasses(true);
-        $config->setProxyDir(\sys_get_temp_dir());
+        $config->setProxyDir(sys_get_temp_dir());
         $config->setProxyNamespace('SymfonyTests\Doctrine');
         $config->setMetadataDriverImpl(new AnnotationDriver(new AnnotationReader()));
         $config->setQueryCacheImpl(new ArrayCache());
diff --git a/src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntityValidator.php b/src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntityValidator.php
index 47cb2bd730317..cf0ed8c962101 100644
--- a/src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntityValidator.php
+++ b/src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntityValidator.php
@@ -186,7 +186,7 @@ private function formatWithIdentifiers(ObjectManager $em, ClassMetadata $class,
             return $this->formatValue($value, self::PRETTY_DATE);
         }
 
-        if (\method_exists($value, '__toString')) {
+        if (method_exists($value, '__toString')) {
             return (string) $value;
         }
 
diff --git a/src/Symfony/Bridge/ProxyManager/LazyProxy/PhpDumper/ProxyDumper.php b/src/Symfony/Bridge/ProxyManager/LazyProxy/PhpDumper/ProxyDumper.php
index 7c12b7015e620..7acc1c65420b7 100644
--- a/src/Symfony/Bridge/ProxyManager/LazyProxy/PhpDumper/ProxyDumper.php
+++ b/src/Symfony/Bridge/ProxyManager/LazyProxy/PhpDumper/ProxyDumper.php
@@ -58,7 +58,7 @@ public function getProxyFactoryCode(Definition $definition, $id, $factoryCode =
         $instantiation = 'return';
 
         if ($definition->isShared()) {
-            $instantiation .= sprintf(' $this->%s[%s] =', \method_exists(ContainerBuilder::class, 'addClassResource') || ($definition->isPublic() && !$definition->isPrivate()) ? 'services' : 'privates', var_export($id, true));
+            $instantiation .= sprintf(' $this->%s[%s] =', method_exists(ContainerBuilder::class, 'addClassResource') || ($definition->isPublic() && !$definition->isPrivate()) ? 'services' : 'privates', var_export($id, true));
         }
 
         if (null === $factoryCode) {
@@ -120,7 +120,7 @@ public function getProxyCode(Definition $definition)
      */
     private static function getProxyManagerVersion()
     {
-        if (!\class_exists(Version::class)) {
+        if (!class_exists(Version::class)) {
             return '0.0.1';
         }
 
diff --git a/src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/ProxyDumperTest.php b/src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/ProxyDumperTest.php
index f0822d4616422..5328c9ae1227d 100644
--- a/src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/ProxyDumperTest.php
+++ b/src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/ProxyDumperTest.php
@@ -103,7 +103,7 @@ public function getPrivatePublicDefinitions()
             [
                 (new Definition(__CLASS__))
                     ->setPublic(false),
-                \method_exists(ContainerBuilder::class, 'addClassResource') ? 'services' : 'privates',
+                method_exists(ContainerBuilder::class, 'addClassResource') ? 'services' : 'privates',
             ],
             [
                 (new Definition(__CLASS__))
diff --git a/src/Symfony/Bridge/Twig/Tests/Command/DebugCommandTest.php b/src/Symfony/Bridge/Twig/Tests/Command/DebugCommandTest.php
index 3b9e479da0791..2f4cc9cd870f7 100644
--- a/src/Symfony/Bridge/Twig/Tests/Command/DebugCommandTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Command/DebugCommandTest.php
@@ -70,7 +70,7 @@ public function testWithGlobals()
 
         $display = $tester->getDisplay();
 
-        $this->assertContains(\json_encode($message), $display);
+        $this->assertContains(json_encode($message), $display);
     }
 
     public function testWithGlobalsJson()
@@ -81,7 +81,7 @@ public function testWithGlobalsJson()
         $tester->execute(['--format' => 'json'], ['decorated' => true]);
 
         $display = $tester->getDisplay();
-        $display = \json_decode($display, true);
+        $display = json_decode($display, true);
 
         $this->assertSame($globals, $display['globals']);
     }
@@ -91,11 +91,11 @@ public function testWithFilter()
         $tester = $this->createCommandTester([]);
         $tester->execute(['--format' => 'json'], ['decorated' => false]);
         $display = $tester->getDisplay();
-        $display1 = \json_decode($display, true);
+        $display1 = json_decode($display, true);
 
         $tester->execute(['filter' => 'date', '--format' => 'json'], ['decorated' => false]);
         $display = $tester->getDisplay();
-        $display2 = \json_decode($display, true);
+        $display2 = json_decode($display, true);
 
         $this->assertNotSame($display1, $display2);
     }
diff --git a/src/Symfony/Bridge/Twig/UndefinedCallableHandler.php b/src/Symfony/Bridge/Twig/UndefinedCallableHandler.php
index 8476e89cab0ee..9c2d18b4a4d6e 100644
--- a/src/Symfony/Bridge/Twig/UndefinedCallableHandler.php
+++ b/src/Symfony/Bridge/Twig/UndefinedCallableHandler.php
@@ -84,7 +84,7 @@ public static function onUndefinedFunction($name)
 
     private static function onUndefined($name, $type, $component)
     {
-        if (\class_exists(FullStack::class) && isset(self::$fullStackEnable[$component])) {
+        if (class_exists(FullStack::class) && isset(self::$fullStackEnable[$component])) {
             throw new SyntaxError(sprintf('Did you forget to %s? Unknown %s "%s".', self::$fullStackEnable[$component], $type, $name));
         }
 
diff --git a/src/Symfony/Component/Cache/Traits/PhpArrayTrait.php b/src/Symfony/Component/Cache/Traits/PhpArrayTrait.php
index e96462abf7e53..ea996a217cf13 100644
--- a/src/Symfony/Component/Cache/Traits/PhpArrayTrait.php
+++ b/src/Symfony/Component/Cache/Traits/PhpArrayTrait.php
@@ -90,7 +90,7 @@ public function warmUp(array $values)
                 if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
                     $value = serialize($value);
                 }
-            } elseif (!\is_scalar($value)) {
+            } elseif (!is_scalar($value)) {
                 throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \gettype($value)));
             }
 
diff --git a/src/Symfony/Component/Cache/Traits/PhpFilesTrait.php b/src/Symfony/Component/Cache/Traits/PhpFilesTrait.php
index 36c614fe65bc6..3cc02b2428486 100644
--- a/src/Symfony/Component/Cache/Traits/PhpFilesTrait.php
+++ b/src/Symfony/Component/Cache/Traits/PhpFilesTrait.php
@@ -136,7 +136,7 @@ protected function doSave(array $values, $lifetime)
                 if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
                     $value = serialize($value);
                 }
-            } elseif (!\is_scalar($value)) {
+            } elseif (!is_scalar($value)) {
                 throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \gettype($value)));
             }
 
diff --git a/src/Symfony/Component/Debug/DebugClassLoader.php b/src/Symfony/Component/Debug/DebugClassLoader.php
index b728b9b90fee2..9ceac9af162b0 100644
--- a/src/Symfony/Component/Debug/DebugClassLoader.php
+++ b/src/Symfony/Component/Debug/DebugClassLoader.php
@@ -168,7 +168,7 @@ public function loadClass($class)
 
     private function checkClass($class, $file = null)
     {
-        $exists = null === $file || \class_exists($class, false) || \interface_exists($class, false) || \trait_exists($class, false);
+        $exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
 
         if (null !== $file && $class && '\\' === $class[0]) {
             $class = substr($class, 1);
@@ -186,13 +186,13 @@ private function checkClass($class, $file = null)
             }
             $name = $refl->getName();
 
-            if ($name !== $class && 0 === \strcasecmp($name, $class)) {
+            if ($name !== $class && 0 === strcasecmp($name, $class)) {
                 throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: "%s" vs "%s".', $class, $name));
             }
 
             $deprecations = $this->checkAnnotations($refl, $name);
 
-            if (isset(self::$php7Reserved[\strtolower($refl->getShortName())])) {
+            if (isset(self::$php7Reserved[strtolower($refl->getShortName())])) {
                 $deprecations[] = sprintf('The "%s" class uses the reserved name "%s", it will break on PHP 7 and higher', $name, $refl->getShortName());
             }
 
@@ -223,23 +223,23 @@ public function checkAnnotations(\ReflectionClass $refl, $class)
         $deprecations = [];
 
         // Don't trigger deprecations for classes in the same vendor
-        if (2 > $len = 1 + (\strpos($class, '\\') ?: \strpos($class, '_'))) {
+        if (2 > $len = 1 + (strpos($class, '\\') ?: strpos($class, '_'))) {
             $len = 0;
             $ns = '';
         } else {
-            $ns = \str_replace('_', '\\', \substr($class, 0, $len));
+            $ns = str_replace('_', '\\', substr($class, 0, $len));
         }
 
         // Detect annotations on the class
         if (false !== $doc = $refl->getDocComment()) {
             foreach (['final', 'deprecated', 'internal'] as $annotation) {
-                if (false !== \strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
+                if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
                     self::${$annotation}[$class] = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : '';
                 }
             }
         }
 
-        $parent = \get_parent_class($class);
+        $parent = get_parent_class($class);
         $parentAndOwnInterfaces = $this->getOwnInterfaces($class, $parent);
         if ($parent) {
             $parentAndOwnInterfaces[$parent] = $parent;
@@ -254,22 +254,22 @@ public function checkAnnotations(\ReflectionClass $refl, $class)
         }
 
         // Detect if the parent is annotated
-        foreach ($parentAndOwnInterfaces + \class_uses($class, false) as $use) {
+        foreach ($parentAndOwnInterfaces + class_uses($class, false) as $use) {
             if (!isset(self::$checkedClasses[$use])) {
                 $this->checkClass($use);
             }
-            if (isset(self::$deprecated[$use]) && \strncmp($ns, \str_replace('_', '\\', $use), $len) && !isset(self::$deprecated[$class])) {
+            if (isset(self::$deprecated[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len) && !isset(self::$deprecated[$class])) {
                 $type = class_exists($class, false) ? 'class' : (interface_exists($class, false) ? 'interface' : 'trait');
                 $verb = class_exists($use, false) || interface_exists($class, false) ? 'extends' : (interface_exists($use, false) ? 'implements' : 'uses');
 
                 $deprecations[] = sprintf('The "%s" %s %s "%s" that is deprecated%s.', $class, $type, $verb, $use, self::$deprecated[$use]);
             }
-            if (isset(self::$internal[$use]) && \strncmp($ns, \str_replace('_', '\\', $use), $len)) {
+            if (isset(self::$internal[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len)) {
                 $deprecations[] = sprintf('The "%s" %s is considered internal%s. It may change without further notice. You should not use it from "%s".', $use, class_exists($use, false) ? 'class' : (interface_exists($use, false) ? 'interface' : 'trait'), self::$internal[$use], $class);
             }
         }
 
-        if (\trait_exists($class)) {
+        if (trait_exists($class)) {
             return $deprecations;
         }
 
@@ -296,7 +296,7 @@ public function checkAnnotations(\ReflectionClass $refl, $class)
 
             if (isset(self::$internalMethods[$class][$method->name])) {
                 list($declaringClass, $message) = self::$internalMethods[$class][$method->name];
-                if (\strncmp($ns, $declaringClass, $len)) {
+                if (strncmp($ns, $declaringClass, $len)) {
                     $deprecations[] = sprintf('The "%s::%s()" method is considered internal%s. It may change without further notice. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class);
                 }
             }
@@ -307,7 +307,7 @@ public function checkAnnotations(\ReflectionClass $refl, $class)
             }
 
             foreach (['final', 'internal'] as $annotation) {
-                if (false !== \strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
+                if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
                     $message = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : '';
                     self::${$annotation.'Methods'}[$class][$method->name] = [$class, $message];
                 }
diff --git a/src/Symfony/Component/Filesystem/Filesystem.php b/src/Symfony/Component/Filesystem/Filesystem.php
index 3c61fc15048fe..a6e372ebf15a3 100644
--- a/src/Symfony/Component/Filesystem/Filesystem.php
+++ b/src/Symfony/Component/Filesystem/Filesystem.php
@@ -746,16 +746,16 @@ private function getSchemeAndHierarchy($filename)
     private static function box($func)
     {
         self::$lastError = null;
-        \set_error_handler(__CLASS__.'::handleError');
+        set_error_handler(__CLASS__.'::handleError');
         try {
             $result = \call_user_func_array($func, \array_slice(\func_get_args(), 1));
-            \restore_error_handler();
+            restore_error_handler();
 
             return $result;
         } catch (\Throwable $e) {
         } catch (\Exception $e) {
         }
-        \restore_error_handler();
+        restore_error_handler();
 
         throw $e;
     }
diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
index bc088e7740bc8..9369740eb6dd5 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
@@ -683,7 +683,7 @@ private function doAdvisoryLock($sessionId)
         switch ($this->driver) {
             case 'mysql':
                 // MySQL 5.7.5 and later enforces a maximum length on lock names of 64 characters. Previously, no limit was enforced.
-                $lockId = \substr($sessionId, 0, 64);
+                $lockId = substr($sessionId, 0, 64);
                 // should we handle the return value? 0 on timeout, null on error
                 // we use a timeout of 50 seconds which is also the default for innodb_lock_wait_timeout
                 $stmt = $this->pdo->prepare('SELECT GET_LOCK(:key, 50)');
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php
index f48db705686b6..7ab14b7cb856a 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php
@@ -47,7 +47,7 @@ public function collect(Request $request, Response $response, \Exception $except
             'token' => $response->headers->get('X-Debug-Token'),
             'start_time' => $startTime * 1000,
             'events' => [],
-            'stopwatch_installed' => \class_exists(Stopwatch::class, false),
+            'stopwatch_installed' => class_exists(Stopwatch::class, false),
         ];
     }
 
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
index 1efad607e8277..7037c497cc9c6 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
@@ -132,12 +132,12 @@ public function update(Response $response)
         $maxAge = null;
         $sMaxage = null;
 
-        if (\is_numeric($this->ageDirectives['max-age'])) {
+        if (is_numeric($this->ageDirectives['max-age'])) {
             $maxAge = $this->ageDirectives['max-age'] + $this->age;
             $response->headers->addCacheControlDirective('max-age', $maxAge);
         }
 
-        if (\is_numeric($this->ageDirectives['s-maxage'])) {
+        if (is_numeric($this->ageDirectives['s-maxage'])) {
             $sMaxage = $this->ageDirectives['s-maxage'] + $this->age;
 
             if ($maxAge !== $sMaxage) {
@@ -145,7 +145,7 @@ public function update(Response $response)
             }
         }
 
-        if (\is_numeric($this->ageDirectives['expires'])) {
+        if (is_numeric($this->ageDirectives['expires'])) {
             $date = clone $response->getDate();
             $date->modify('+'.($this->ageDirectives['expires'] + $this->age).' seconds');
             $response->setExpires($date);
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/SubRequestHandler.php b/src/Symfony/Component/HttpKernel/HttpCache/SubRequestHandler.php
index a701b235464ba..895207152bd19 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/SubRequestHandler.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/SubRequestHandler.php
@@ -31,7 +31,7 @@ public static function handle(HttpKernelInterface $kernel, Request $request, $ty
         // save global state related to trusted headers and proxies
         $trustedProxies = Request::getTrustedProxies();
         $trustedHeaderSet = Request::getTrustedHeaderSet();
-        if (\method_exists(Request::class, 'getTrustedHeaderName')) {
+        if (method_exists(Request::class, 'getTrustedHeaderName')) {
             Request::setTrustedProxies($trustedProxies, -1);
             $trustedHeaders = [
                 Request::HEADER_FORWARDED => Request::getTrustedHeaderName(Request::HEADER_FORWARDED, false),
diff --git a/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php b/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
index 6756f3de42647..e044e5e1add53 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
@@ -52,6 +52,6 @@ public function testCollect()
 
         $c->collect($request, new Response());
         $this->assertEquals(123456000, $c->getStartTime());
-        $this->assertSame(\class_exists(Stopwatch::class, false), $c->isStopwatchInstalled());
+        $this->assertSame(class_exists(Stopwatch::class, false), $c->isStopwatchInstalled());
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
index f3f5b4e51f1ad..83f85abda2a12 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
@@ -139,7 +139,7 @@ public function serialize()
     {
         $serialized = [$this->user, $this->authenticated, $this->roles, $this->attributes];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
index 1ee85363c4925..7677b90d274df 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/AnonymousToken.php
@@ -61,7 +61,7 @@ public function serialize()
     {
         $serialized = [$this->secret, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
index ddad0a539cd30..7ff0cfe8a5ba4 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php
@@ -81,7 +81,7 @@ public function serialize()
     {
         $serialized = [$this->credentials, $this->providerKey, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
index 031e4c6b98c76..6e846dd27c18d 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/RememberMeToken.php
@@ -96,7 +96,7 @@ public function serialize()
     {
         $serialized = [$this->secret, $this->providerKey, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
index 3c052722bee38..9b71520a2b1c0 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
@@ -93,7 +93,7 @@ public function serialize()
     {
         $serialized = [$this->credentials, $this->providerKey, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php b/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
index 6f8a43b014531..53c016397632d 100644
--- a/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
+++ b/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
@@ -26,7 +26,7 @@ public static function isSupported()
             return true;
         }
 
-        if (\class_exists('ParagonIE_Sodium_Compat') && \method_exists('ParagonIE_Sodium_Compat', 'crypto_pwhash_is_available')) {
+        if (class_exists('ParagonIE_Sodium_Compat') && method_exists('ParagonIE_Sodium_Compat', 'crypto_pwhash_is_available')) {
             return \ParagonIE_Sodium_Compat::crypto_pwhash_is_available();
         }
 
@@ -66,8 +66,8 @@ public function isPasswordValid($encoded, $raw, $salt)
             return !$this->isPasswordTooLong($raw) && password_verify($raw, $encoded);
         }
         if (\function_exists('sodium_crypto_pwhash_str_verify')) {
-            $valid = !$this->isPasswordTooLong($raw) && \sodium_crypto_pwhash_str_verify($encoded, $raw);
-            \sodium_memzero($raw);
+            $valid = !$this->isPasswordTooLong($raw) && sodium_crypto_pwhash_str_verify($encoded, $raw);
+            sodium_memzero($raw);
 
             return $valid;
         }
@@ -88,12 +88,12 @@ private function encodePasswordNative($raw)
 
     private function encodePasswordSodiumFunction($raw)
     {
-        $hash = \sodium_crypto_pwhash_str(
+        $hash = sodium_crypto_pwhash_str(
             $raw,
             \SODIUM_CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE,
             \SODIUM_CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE
         );
-        \sodium_memzero($raw);
+        sodium_memzero($raw);
 
         return $hash;
     }
diff --git a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
index cb91b42364bc4..60aea70269a68 100644
--- a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
+++ b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
@@ -46,7 +46,7 @@ public function serialize()
     {
         $serialized = [$this->user, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php b/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
index 2c6c7344a467f..032156e263bc9 100644
--- a/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
+++ b/src/Symfony/Component/Security/Core/Exception/AuthenticationException.php
@@ -51,7 +51,7 @@ public function serialize()
             $this->line,
         ];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php b/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
index ed9fb1bd339b9..9cf253b309238 100644
--- a/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
+++ b/src/Symfony/Component/Security/Core/Exception/CustomUserMessageAuthenticationException.php
@@ -62,7 +62,7 @@ public function serialize()
     {
         $serialized = [parent::serialize(true), $this->messageKey, $this->messageData];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php b/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
index b4b8047f341f9..c5e517d01d612 100644
--- a/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
+++ b/src/Symfony/Component/Security/Core/Exception/UsernameNotFoundException.php
@@ -56,7 +56,7 @@ public function serialize()
     {
         $serialized = [$this->username, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
index 7516759c0aa8e..564ca872401a6 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authentication/Token/AbstractTokenTest.php
@@ -50,7 +50,7 @@ public function serialize()
     {
         $serialized = [$this->credentials, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     public function unserialize($serialized)
diff --git a/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php b/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
index 00048226b6aa3..fbdcca1fe8312 100644
--- a/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
+++ b/src/Symfony/Component/Security/Guard/Token/PostAuthenticationGuardToken.php
@@ -78,7 +78,7 @@ public function serialize()
     {
         $serialized = [$this->providerKey, parent::serialize(true)];
 
-        return $this->doSerialize($serialized, \func_num_args() ? \func_get_arg(0) : null);
+        return $this->doSerialize($serialized, \func_num_args() ? func_get_arg(0) : null);
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Http/Firewall/SimpleFormAuthenticationListener.php b/src/Symfony/Component/Security/Http/Firewall/SimpleFormAuthenticationListener.php
index 99c8fcab4e645..de985fb3155da 100644
--- a/src/Symfony/Component/Security/Http/Firewall/SimpleFormAuthenticationListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/SimpleFormAuthenticationListener.php
@@ -107,7 +107,7 @@ protected function attemptAuthentication(Request $request)
             $password = ParameterBagUtils::getRequestParameterValue($request, $this->options['password_parameter']);
         }
 
-        if (!\is_string($username) && (!\is_object($username) || !\method_exists($username, '__toString'))) {
+        if (!\is_string($username) && (!\is_object($username) || !method_exists($username, '__toString'))) {
             throw new BadRequestHttpException(sprintf('The key "%s" must be a string, "%s" given.', $this->options['username_parameter'], \gettype($username)));
         }
 
diff --git a/src/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php b/src/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php
index 2f54156732948..37bdfdcafb327 100644
--- a/src/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php
@@ -85,7 +85,7 @@ protected function attemptAuthentication(Request $request)
             $password = ParameterBagUtils::getRequestParameterValue($request, $this->options['password_parameter']);
         }
 
-        if (!\is_string($username) && (!\is_object($username) || !\method_exists($username, '__toString'))) {
+        if (!\is_string($username) && (!\is_object($username) || !method_exists($username, '__toString'))) {
             throw new BadRequestHttpException(sprintf('The key "%s" must be a string, "%s" given.', $this->options['username_parameter'], \gettype($username)));
         }
 
diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
index 00bd8a2a52faf..b6aea185e789b 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
@@ -313,7 +313,7 @@ protected function getConstructor(array &$data, $class, array &$context, \Reflec
     protected function instantiateObject(array &$data, $class, array &$context, \ReflectionClass $reflectionClass, $allowedAttributes/*, string $format = null*/)
     {
         if (\func_num_args() >= 6) {
-            $format = \func_get_arg(5);
+            $format = func_get_arg(5);
         } else {
             if (__CLASS__ !== \get_class($this)) {
                 $r = new \ReflectionMethod($this, __FUNCTION__);
diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
index 38908a9323ba1..7201e5c095751 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
@@ -380,7 +380,7 @@ private function isMaxDepthReached(array $attributesMetadata, $class, $attribute
     protected function createChildContext(array $parentContext, $attribute/*, string $format = null */)
     {
         if (\func_num_args() >= 3) {
-            $format = \func_get_arg(2);
+            $format = func_get_arg(2);
         } else {
             // will be deprecated in version 4
             $format = null;
diff --git a/src/Symfony/Component/Serializer/Normalizer/ObjectNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/ObjectNormalizer.php
index 854962da6c94d..c1b3dd260e243 100644
--- a/src/Symfony/Component/Serializer/Normalizer/ObjectNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/ObjectNormalizer.php
@@ -30,7 +30,7 @@ class ObjectNormalizer extends AbstractObjectNormalizer
 
     public function __construct(ClassMetadataFactoryInterface $classMetadataFactory = null, NameConverterInterface $nameConverter = null, PropertyAccessorInterface $propertyAccessor = null, PropertyTypeExtractorInterface $propertyTypeExtractor = null)
     {
-        if (!\class_exists(PropertyAccess::class)) {
+        if (!class_exists(PropertyAccess::class)) {
             throw new RuntimeException('The ObjectNormalizer class requires the "PropertyAccess" component. Install "symfony/property-access" to use it.');
         }
 
diff --git a/src/Symfony/Component/Serializer/Serializer.php b/src/Symfony/Component/Serializer/Serializer.php
index 4528e385a7ff6..f63cf67bdf7ed 100644
--- a/src/Symfony/Component/Serializer/Serializer.php
+++ b/src/Symfony/Component/Serializer/Serializer.php
@@ -191,7 +191,7 @@ public function denormalize($data, $type, $format = null, array $context = [])
     public function supportsNormalization($data, $format = null/*, array $context = []*/)
     {
         if (\func_num_args() > 2) {
-            $context = \func_get_arg(2);
+            $context = func_get_arg(2);
         } else {
             if (__CLASS__ !== \get_class($this)) {
                 $r = new \ReflectionMethod($this, __FUNCTION__);
@@ -212,7 +212,7 @@ public function supportsNormalization($data, $format = null/*, array $context =
     public function supportsDenormalization($data, $type, $format = null/*, array $context = []*/)
     {
         if (\func_num_args() > 3) {
-            $context = \func_get_arg(3);
+            $context = func_get_arg(3);
         } else {
             if (__CLASS__ !== \get_class($this)) {
                 $r = new \ReflectionMethod($this, __FUNCTION__);
@@ -286,7 +286,7 @@ final public function decode($data, $format, array $context = [])
     public function supportsEncoding($format/*, array $context = []*/)
     {
         if (\func_num_args() > 1) {
-            $context = \func_get_arg(1);
+            $context = func_get_arg(1);
         } else {
             if (__CLASS__ !== \get_class($this)) {
                 $r = new \ReflectionMethod($this, __FUNCTION__);
@@ -307,7 +307,7 @@ public function supportsEncoding($format/*, array $context = []*/)
     public function supportsDecoding($format/*, array $context = []*/)
     {
         if (\func_num_args() > 1) {
-            $context = \func_get_arg(1);
+            $context = func_get_arg(1);
         } else {
             if (__CLASS__ !== \get_class($this)) {
                 $r = new \ReflectionMethod($this, __FUNCTION__);
diff --git a/src/Symfony/Component/Translation/Resources/bin/translation-status.php b/src/Symfony/Component/Translation/Resources/bin/translation-status.php
index 0d37c3e0aa38b..96ccc105741b7 100644
--- a/src/Symfony/Component/Translation/Resources/bin/translation-status.php
+++ b/src/Symfony/Component/Translation/Resources/bin/translation-status.php
@@ -73,7 +73,7 @@
     $translationStatus = calculateTranslationStatus($originalFilePath, $translationFilePaths);
 
     $totalMissingTranslations += array_sum(array_map(function ($translation) {
-        return \count($translation['missingKeys']);
+        return count($translation['missingKeys']);
     }, array_values($translationStatus)));
 
     printTranslationStatus($originalFilePath, $translationStatus, $config['verbose_output']);
@@ -113,8 +113,8 @@ function calculateTranslationStatus($originalFilePath, $translationFilePaths)
         $missingKeys = array_diff_key($allTranslationKeys, $translatedKeys);
 
         $translationStatus[$locale] = [
-            'total' => \count($allTranslationKeys),
-            'translated' => \count($translatedKeys),
+            'total' => count($allTranslationKeys),
+            'translated' => count($translatedKeys),
             'missingKeys' => $missingKeys,
         ];
     }
@@ -176,7 +176,7 @@ function printTable($translations, $verboseOutput)
 
         textColorNormal();
 
-        if (true === $verboseOutput && \count($translation['missingKeys']) > 0) {
+        if (true === $verboseOutput && count($translation['missingKeys']) > 0) {
             echo str_repeat('-', 80).PHP_EOL;
             echo '| Missing Translations:'.PHP_EOL;
 
diff --git a/src/Symfony/Component/VarDumper/Cloner/VarCloner.php b/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
index f418aa089488d..9e50f23501154 100644
--- a/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
+++ b/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
@@ -79,7 +79,7 @@ protected function doClone($var)
                     }
                     if ($gk !== $k) {
                         $fromObjCast = true;
-                        $refs = $vals = \array_values($queue[$i]);
+                        $refs = $vals = array_values($queue[$i]);
                         break;
                     }
                 }
@@ -90,7 +90,7 @@ protected function doClone($var)
                 if ($zvalIsRef = $vals[$k] === $cookie) {
                     $vals[$k] = &$stub;         // Break hard references to make $queue completely
                     unset($stub);               // independent from the original structure
-                    if ($v instanceof Stub && isset($hardRefs[\spl_object_hash($v)])) {
+                    if ($v instanceof Stub && isset($hardRefs[spl_object_hash($v)])) {
                         $vals[$k] = $refs[$k] = $v;
                         if ($v->value instanceof Stub && (Stub::TYPE_OBJECT === $v->value->type || Stub::TYPE_RESOURCE === $v->value->type)) {
                             ++$v->value->refCount;
@@ -100,7 +100,7 @@ protected function doClone($var)
                     }
                     $refs[$k] = $vals[$k] = new Stub();
                     $refs[$k]->value = $v;
-                    $h = \spl_object_hash($refs[$k]);
+                    $h = spl_object_hash($refs[$k]);
                     $hardRefs[$h] = &$refs[$k];
                     $values[$h] = $v;
                     $vals[$k]->handle = ++$refsCounter;
@@ -118,22 +118,22 @@ protected function doClone($var)
                         if ('' === $v) {
                             continue 2;
                         }
-                        if (!\preg_match('//u', $v)) {
+                        if (!preg_match('//u', $v)) {
                             $stub = new Stub();
                             $stub->type = Stub::TYPE_STRING;
                             $stub->class = Stub::STRING_BINARY;
                             if (0 <= $maxString && 0 < $cut = \strlen($v) - $maxString) {
                                 $stub->cut = $cut;
-                                $stub->value = \substr($v, 0, -$cut);
+                                $stub->value = substr($v, 0, -$cut);
                             } else {
                                 $stub->value = $v;
                             }
-                        } elseif (0 <= $maxString && isset($v[1 + ($maxString >> 2)]) && 0 < $cut = \mb_strlen($v, 'UTF-8') - $maxString) {
+                        } elseif (0 <= $maxString && isset($v[1 + ($maxString >> 2)]) && 0 < $cut = mb_strlen($v, 'UTF-8') - $maxString) {
                             $stub = new Stub();
                             $stub->type = Stub::TYPE_STRING;
                             $stub->class = Stub::STRING_UTF8;
                             $stub->cut = $cut;
-                            $stub->value = \mb_substr($v, 0, $maxString, 'UTF-8');
+                            $stub->value = mb_substr($v, 0, $maxString, 'UTF-8');
                         } else {
                             continue 2;
                         }
@@ -179,7 +179,7 @@ protected function doClone($var)
 
                     case \is_object($v):
                     case $v instanceof \__PHP_Incomplete_Class:
-                        if (empty($objRefs[$h = $hashMask ^ \hexdec(\substr(\spl_object_hash($v), $hashOffset, \PHP_INT_SIZE))])) {
+                        if (empty($objRefs[$h = $hashMask ^ hexdec(substr(spl_object_hash($v), $hashOffset, \PHP_INT_SIZE))])) {
                             $stub = new Stub();
                             $stub->type = Stub::TYPE_OBJECT;
                             $stub->class = \get_class($v);
@@ -190,7 +190,7 @@ protected function doClone($var)
                                 if (Stub::TYPE_OBJECT !== $stub->type || null === $stub->value) {
                                     break;
                                 }
-                                $h = $hashMask ^ \hexdec(\substr(\spl_object_hash($stub->value), $hashOffset, \PHP_INT_SIZE));
+                                $h = $hashMask ^ hexdec(substr(spl_object_hash($stub->value), $hashOffset, \PHP_INT_SIZE));
                                 $stub->handle = $h;
                             }
                             $stub->value = null;
@@ -213,7 +213,7 @@ protected function doClone($var)
                         if (empty($resRefs[$h = (int) $v])) {
                             $stub = new Stub();
                             $stub->type = Stub::TYPE_RESOURCE;
-                            if ('Unknown' === $stub->class = @\get_resource_type($v)) {
+                            if ('Unknown' === $stub->class = @get_resource_type($v)) {
                                 $stub->class = 'Closed';
                             }
                             $stub->value = $v;

From a9d0038ec0042b39a96c0141e0d8c78a6fa3f362 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Thu, 13 Jun 2019 14:31:28 +0200
Subject: [PATCH 29/56] [VarDumper] fix dumping objects that implement
 __debugInfo()

---
 .../Component/VarDumper/Caster/Caster.php     | 21 ++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/Symfony/Component/VarDumper/Caster/Caster.php b/src/Symfony/Component/VarDumper/Caster/Caster.php
index 93d0ce2b41b73..ae8b40fa0eacd 100644
--- a/src/Symfony/Component/VarDumper/Caster/Caster.php
+++ b/src/Symfony/Component/VarDumper/Caster/Caster.php
@@ -53,13 +53,9 @@ public static function castObject($obj, $class, $hasDebugInfo = false)
             $hasDebugInfo = $class->hasMethod('__debugInfo');
             $class = $class->name;
         }
-        if ($hasDebugInfo) {
-            $a = $obj->__debugInfo();
-        } elseif ($obj instanceof \Closure) {
-            $a = [];
-        } else {
-            $a = (array) $obj;
-        }
+
+        $a = $obj instanceof \Closure ? [] : (array) $obj;
+
         if ($obj instanceof \__PHP_Incomplete_Class) {
             return $a;
         }
@@ -93,6 +89,17 @@ public static function castObject($obj, $class, $hasDebugInfo = false)
             }
         }
 
+        if ($hasDebugInfo && \is_array($debugInfo = $obj->__debugInfo())) {
+            foreach ($debugInfo as $k => $v) {
+                if (!isset($k[0]) || "\0" !== $k[0]) {
+                    $k = self::PREFIX_VIRTUAL.$k;
+                }
+
+                unset($a[$k]);
+                $a[$k] = $v;
+            }
+        }
+
         return $a;
     }
 

From d445465ef459b83ce2b9b4342bbb38fc9b8c1d02 Mon Sep 17 00:00:00 2001
From: Stefano Degenkamp <stefanodegenkamp@gmail.com>
Date: Wed, 12 Jun 2019 11:28:52 +0200
Subject: [PATCH 30/56] Fix binary operation `+`, `-` or `*` on string

By type casting to integer.
---
 .../Component/Form/Extension/Core/Type/BirthdayType.php       | 2 +-
 src/Symfony/Component/Form/Extension/Core/Type/DateType.php   | 2 +-
 src/Symfony/Component/HttpFoundation/Response.php             | 4 ++--
 .../Component/HttpKernel/HttpCache/ResponseCacheStrategy.php  | 2 +-
 .../Intl/DateFormatter/DateFormat/DayOfYearTransformer.php    | 2 +-
 .../Intl/DateFormatter/DateFormat/FullTransformer.php         | 2 +-
 src/Symfony/Component/Validator/Constraints/IssnValidator.php | 2 +-
 src/Symfony/Component/Validator/Constraints/LuhnValidator.php | 2 +-
 src/Symfony/Component/VarDumper/Caster/DateCaster.php         | 2 +-
 9 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/Symfony/Component/Form/Extension/Core/Type/BirthdayType.php b/src/Symfony/Component/Form/Extension/Core/Type/BirthdayType.php
index 841bd0d85f32f..acb8d02b8c5a9 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/BirthdayType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/BirthdayType.php
@@ -21,7 +21,7 @@ class BirthdayType extends AbstractType
      */
     public function configureOptions(OptionsResolver $resolver)
     {
-        $resolver->setDefault('years', range(date('Y') - 120, date('Y')));
+        $resolver->setDefault('years', range((int) date('Y') - 120, date('Y')));
 
         $resolver->setAllowedTypes('years', 'array');
     }
diff --git a/src/Symfony/Component/Form/Extension/Core/Type/DateType.php b/src/Symfony/Component/Form/Extension/Core/Type/DateType.php
index 09f5e1de5c872..8ab5e9cc8a57b 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/DateType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/DateType.php
@@ -256,7 +256,7 @@ public function configureOptions(OptionsResolver $resolver)
         };
 
         $resolver->setDefaults([
-            'years' => range(date('Y') - 5, date('Y') + 5),
+            'years' => range((int) date('Y') - 5, (int) date('Y') + 5),
             'months' => range(1, 12),
             'days' => range(1, 31),
             'widget' => 'choice',
diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
index b7d116259d6f2..4ab05066f4745 100644
--- a/src/Symfony/Component/HttpFoundation/Response.php
+++ b/src/Symfony/Component/HttpFoundation/Response.php
@@ -707,7 +707,7 @@ public function getAge()
             return (int) $age;
         }
 
-        return max(time() - $this->getDate()->format('U'), 0);
+        return max(time() - (int) $this->getDate()->format('U'), 0);
     }
 
     /**
@@ -788,7 +788,7 @@ public function getMaxAge()
         }
 
         if (null !== $this->getExpires()) {
-            return $this->getExpires()->format('U') - $this->getDate()->format('U');
+            return (int) $this->getExpires()->format('U') - (int) $this->getDate()->format('U');
         }
     }
 
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
index 7037c497cc9c6..25c071c335a02 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
@@ -85,7 +85,7 @@ public function add(Response $response)
         $this->storeRelativeAgeDirective('s-maxage', $response->headers->getCacheControlDirective('s-maxage') ?: $response->headers->getCacheControlDirective('max-age'), $age);
 
         $expires = $response->getExpires();
-        $expires = null !== $expires ? $expires->format('U') - $response->getDate()->format('U') : null;
+        $expires = null !== $expires ? (int) $expires->format('U') - (int) $response->getDate()->format('U') : null;
         $this->storeRelativeAgeDirective('expires', $expires >= 0 ? $expires : null, 0);
     }
 
diff --git a/src/Symfony/Component/Intl/DateFormatter/DateFormat/DayOfYearTransformer.php b/src/Symfony/Component/Intl/DateFormatter/DateFormat/DayOfYearTransformer.php
index 8b48371f60c6f..1443cc79ecb11 100644
--- a/src/Symfony/Component/Intl/DateFormatter/DateFormat/DayOfYearTransformer.php
+++ b/src/Symfony/Component/Intl/DateFormatter/DateFormat/DayOfYearTransformer.php
@@ -25,7 +25,7 @@ class DayOfYearTransformer extends Transformer
      */
     public function format(\DateTime $dateTime, $length)
     {
-        $dayOfYear = $dateTime->format('z') + 1;
+        $dayOfYear = (int) $dateTime->format('z') + 1;
 
         return $this->padLeft($dayOfYear, $length);
     }
diff --git a/src/Symfony/Component/Intl/DateFormatter/DateFormat/FullTransformer.php b/src/Symfony/Component/Intl/DateFormatter/DateFormat/FullTransformer.php
index 9c0d86ef05bdc..13854ff719ef8 100644
--- a/src/Symfony/Component/Intl/DateFormatter/DateFormat/FullTransformer.php
+++ b/src/Symfony/Component/Intl/DateFormatter/DateFormat/FullTransformer.php
@@ -315,7 +315,7 @@ protected function calculateUnixTimestamp(\DateTime $dateTime, array $options)
         preg_match_all($this->regExp, $this->pattern, $matches);
         if (\in_array('yy', $matches[0])) {
             $dateTime->setTimestamp(time());
-            $year = $year > $dateTime->format('y') + 20 ? 1900 + $year : 2000 + $year;
+            $year = $year > (int) $dateTime->format('y') + 20 ? 1900 + $year : 2000 + $year;
         }
 
         $dateTime->setDate($year, $month, $day);
diff --git a/src/Symfony/Component/Validator/Constraints/IssnValidator.php b/src/Symfony/Component/Validator/Constraints/IssnValidator.php
index f045e62e2ca18..41da39ebd87bc 100644
--- a/src/Symfony/Component/Validator/Constraints/IssnValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/IssnValidator.php
@@ -120,7 +120,7 @@ public function validate($value, Constraint $constraint)
 
         for ($i = 0; $i < 7; ++$i) {
             // Multiply the first digit by 8, the second by 7, etc.
-            $checkSum += (8 - $i) * $canonical[$i];
+            $checkSum += (8 - $i) * (int) $canonical[$i];
         }
 
         if (0 !== $checkSum % 11) {
diff --git a/src/Symfony/Component/Validator/Constraints/LuhnValidator.php b/src/Symfony/Component/Validator/Constraints/LuhnValidator.php
index 554fc6f48b10b..6e69f9ee74c23 100644
--- a/src/Symfony/Component/Validator/Constraints/LuhnValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/LuhnValidator.php
@@ -83,7 +83,7 @@ public function validate($value, Constraint $constraint)
         //         ^     ^     ^     ^     ^
         //    =    1+8 + 4  +  6  +  1+6 + 2
         for ($i = $length - 2; $i >= 0; $i -= 2) {
-            $checkSum += array_sum(str_split($value[$i] * 2));
+            $checkSum += array_sum(str_split((int) $value[$i] * 2));
         }
 
         if (0 === $checkSum || 0 !== $checkSum % 10) {
diff --git a/src/Symfony/Component/VarDumper/Caster/DateCaster.php b/src/Symfony/Component/VarDumper/Caster/DateCaster.php
index 3b030b734ae1d..40289a930b7be 100644
--- a/src/Symfony/Component/VarDumper/Caster/DateCaster.php
+++ b/src/Symfony/Component/VarDumper/Caster/DateCaster.php
@@ -95,7 +95,7 @@ public static function castPeriod(\DatePeriod $p, array $a, Stub $stub, $isNeste
                 if (3 === $i) {
                     $now = new \DateTimeImmutable();
                     $dates[] = sprintf('%s more', ($end = $p->getEndDate())
-                        ? ceil(($end->format('U.u') - $d->format('U.u')) / ($now->add($p->getDateInterval())->format('U.u') - $now->format('U.u')))
+                        ? ceil(($end->format('U.u') - $d->format('U.u')) / ((int) $now->add($p->getDateInterval())->format('U.u') - (int) $now->format('U.u')))
                         : $p->recurrences - $i
                     );
                     break;

From 89cba00c6890bc85a5f35a57bd3a4db3e7250b00 Mon Sep 17 00:00:00 2001
From: battye <battye@phpbb.com>
Date: Thu, 13 Jun 2019 08:42:28 +0000
Subject: [PATCH 31/56] [Serializer] Handle true and false appropriately in CSV
 encoder

---
 .../Serializer/Encoder/CsvEncoder.php          |  3 ++-
 .../Tests/Encoder/CsvEncoderTest.php           | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php b/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
index 1e47d35f17c7f..2552e300941ce 100644
--- a/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
+++ b/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
@@ -189,7 +189,8 @@ private function flatten(array $array, array &$result, $keySeparator, $parentKey
             if (\is_array($value)) {
                 $this->flatten($value, $result, $keySeparator, $parentKey.$key.$keySeparator);
             } else {
-                $result[$parentKey.$key] = $value;
+                // Ensures an actual value is used when dealing with true and false
+                $result[$parentKey.$key] = false === $value ? 0 : (true === $value ? 1 : $value);
             }
         }
     }
diff --git a/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php b/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
index 1eb673e8e21ba..7b5131cb533a6 100644
--- a/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
@@ -29,6 +29,24 @@ protected function setUp()
         $this->encoder = new CsvEncoder();
     }
 
+    public function testTrueFalseValues()
+    {
+        $data = [
+            'string' => 'foo',
+            'int' => 2,
+            'false' => false,
+            'true' => true,
+        ];
+
+        // Check that true and false are appropriately handled
+        $this->assertEquals(<<<'CSV'
+string,int,false,true
+foo,2,0,1
+
+CSV
+    , $this->encoder->encode($data, 'csv'));
+    }
+
     public function testSupportEncoding()
     {
         $this->assertTrue($this->encoder->supportsEncoding('csv'));

From 94ded00216ef36bf61f2bb12fb3f6788fc38c577 Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Fri, 14 Jun 2019 09:11:59 +0200
Subject: [PATCH 32/56] validate composite constraints in all groups

---
 .../Validator/Constraints/FormValidator.php   |  5 +-
 .../Constraints/FormValidatorTest.php         | 58 +++++++++++++++++++
 2 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
index 14adf123ec414..9e167c82155c9 100644
--- a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
+++ b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
@@ -13,6 +13,7 @@
 
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Constraints\Composite;
 use Symfony\Component\Validator\Constraints\GroupSequence;
 use Symfony\Component\Validator\Constraints\Valid;
 use Symfony\Component\Validator\ConstraintValidator;
@@ -90,7 +91,9 @@ public function validate($form, Constraint $formConstraint)
                             $validator->atPath('data')->validate($form->getData(), $constraint, $group);
 
                             // Prevent duplicate validation
-                            continue 2;
+                            if (!$constraint instanceof Composite) {
+                                continue 2;
+                            }
                         }
                     }
                 }
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
index 4ab56f555a90e..8a8af9ed6809a 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
@@ -24,6 +24,7 @@
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\SubmitButtonBuilder;
 use Symfony\Component\Translation\IdentityTranslator;
+use Symfony\Component\Validator\Constraints\Collection;
 use Symfony\Component\Validator\Constraints\GroupSequence;
 use Symfony\Component\Validator\Constraints\NotBlank;
 use Symfony\Component\Validator\Constraints\NotNull;
@@ -673,6 +674,63 @@ public function testCauseForNotAllowedExtraFieldsIsTheFormConstraint()
         $this->assertSame($constraint, $context->getViolations()->get(0)->getConstraint());
     }
 
+    public function testNonCompositeConstraintValidatedOnce()
+    {
+        $form = $this
+            ->getBuilder('form', null, [
+                'constraints' => [new NotBlank(['groups' => ['foo', 'bar']])],
+                'validation_groups' => ['foo', 'bar'],
+            ])
+            ->setCompound(false)
+            ->getForm();
+        $form->submit('');
+
+        $context = new ExecutionContext(Validation::createValidator(), $form, new IdentityTranslator());
+        $this->validator->initialize($context);
+        $this->validator->validate($form, new Form());
+
+        $this->assertCount(1, $context->getViolations());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[0]->getMessage());
+        $this->assertSame('data', $context->getViolations()[0]->getPropertyPath());
+    }
+
+    public function testCompositeConstraintValidatedInEachGroup()
+    {
+        $form = $this->getBuilder('form', null, [
+                'constraints' => [
+                    new Collection([
+                        'field1' => new NotBlank([
+                            'groups' => ['field1'],
+                        ]),
+                        'field2' => new NotBlank([
+                            'groups' => ['field2'],
+                        ]),
+                    ]),
+                ],
+                'validation_groups' => ['field1', 'field2'],
+            ])
+            ->setData([])
+            ->setCompound(true)
+            ->setDataMapper(new PropertyPathMapper())
+            ->getForm();
+        $form->add($this->getForm('field1'));
+        $form->add($this->getForm('field2'));
+        $form->submit([
+            'field1' => '',
+            'field2' => '',
+        ]);
+
+        $context = new ExecutionContext(Validation::createValidator(), $form, new IdentityTranslator());
+        $this->validator->initialize($context);
+        $this->validator->validate($form, new Form());
+
+        $this->assertCount(2, $context->getViolations());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[0]->getMessage());
+        $this->assertSame('data[field1]', $context->getViolations()[0]->getPropertyPath());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[1]->getMessage());
+        $this->assertSame('data[field2]', $context->getViolations()[1]->getPropertyPath());
+    }
+
     protected function createValidator()
     {
         return new FormValidator();

From ffd3469ddfb96aa25deb3a0f22f83e26e5d0f040 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20N=C3=A9grier?= <d.negrier@thecodingmachine.com>
Date: Thu, 13 Jun 2019 15:23:10 +0200
Subject: [PATCH 33/56] SimpleCacheAdapter fails to cache any item if a
 namespace is used

---
 .../Cache/Adapter/AbstractAdapter.php          |  2 +-
 .../Cache/Adapter/SimpleCacheAdapter.php       |  8 ++++++++
 .../Tests/Adapter/SimpleCacheAdapterTest.php   | 11 +++++++++++
 .../Component/Cache/Traits/AbstractTrait.php   | 18 +++++++++++++-----
 4 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php b/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
index 099c97a4da9d4..70af0c7314cac 100644
--- a/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
@@ -39,7 +39,7 @@ abstract class AbstractAdapter implements AdapterInterface, LoggerAwareInterface
      */
     protected function __construct($namespace = '', $defaultLifetime = 0)
     {
-        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).':';
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::getNsSeparator();
         if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
             throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s")', $this->maxIdLength - 24, \strlen($namespace), $namespace));
         }
diff --git a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
index bdb62a4bb3809..de4dd745cd119 100644
--- a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
@@ -75,4 +75,12 @@ protected function doSave(array $values, $lifetime)
     {
         return $this->pool->setMultiple($values, 0 === $lifetime ? null : $lifetime);
     }
+
+    /**
+     * @return string the namespace separator for cache keys
+     */
+    protected static function getNsSeparator()
+    {
+        return '_';
+    }
 }
diff --git a/src/Symfony/Component/Cache/Tests/Adapter/SimpleCacheAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/SimpleCacheAdapterTest.php
index 84713416cdea5..d8470a2e7d5a6 100644
--- a/src/Symfony/Component/Cache/Tests/Adapter/SimpleCacheAdapterTest.php
+++ b/src/Symfony/Component/Cache/Tests/Adapter/SimpleCacheAdapterTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Cache\Tests\Adapter;
 
 use Symfony\Component\Cache\Adapter\SimpleCacheAdapter;
+use Symfony\Component\Cache\Simple\ArrayCache;
 use Symfony\Component\Cache\Simple\FilesystemCache;
 
 /**
@@ -27,4 +28,14 @@ public function createCachePool($defaultLifetime = 0)
     {
         return new SimpleCacheAdapter(new FilesystemCache(), '', $defaultLifetime);
     }
+
+    public function testValidCacheKeyWithNamespace()
+    {
+        $cache = new SimpleCacheAdapter(new ArrayCache(), 'some_namespace', 0);
+        $item = $cache->getItem('my_key');
+        $item->set('someValue');
+        $cache->save($item);
+
+        $this->assertTrue($cache->getItem('my_key')->isHit(), 'Stored item is successfully retrieved.');
+    }
 }
diff --git a/src/Symfony/Component/Cache/Traits/AbstractTrait.php b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
index be576098e45eb..83a86a5ee9e2e 100644
--- a/src/Symfony/Component/Cache/Traits/AbstractTrait.php
+++ b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
@@ -106,7 +106,7 @@ public function clear()
     {
         $this->deferred = [];
         if ($cleared = $this->versioningIsEnabled) {
-            $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), ':', 5);
+            $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), static::getNsSeparator(), 5);
             try {
                 $cleared = $this->doSave(['@'.$this->namespace => $namespaceVersion], 0);
             } catch (\Exception $e) {
@@ -235,13 +235,13 @@ private function getId($key)
         CacheItem::validateKey($key);
 
         if ($this->versioningIsEnabled && '' === $this->namespaceVersion) {
-            $this->namespaceVersion = '1:';
+            $this->namespaceVersion = '1'.static::getNsSeparator();
             try {
                 foreach ($this->doFetch(['@'.$this->namespace]) as $v) {
                     $this->namespaceVersion = $v;
                 }
-                if ('1:' === $this->namespaceVersion) {
-                    $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), ':', 5);
+                if ('1'.static::getNsSeparator() === $this->namespaceVersion) {
+                    $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), static::getNsSeparator(), 5);
                     $this->doSave(['@'.$this->namespace => $this->namespaceVersion], 0);
                 }
             } catch (\Exception $e) {
@@ -252,7 +252,7 @@ private function getId($key)
             return $this->namespace.$this->namespaceVersion.$key;
         }
         if (\strlen($id = $this->namespace.$this->namespaceVersion.$key) > $this->maxIdLength) {
-            $id = $this->namespace.$this->namespaceVersion.substr_replace(base64_encode(hash('sha256', $key, true)), ':', -(\strlen($this->namespaceVersion) + 22));
+            $id = $this->namespace.$this->namespaceVersion.substr_replace(base64_encode(hash('sha256', $key, true)), static::getNsSeparator(), -(\strlen($this->namespaceVersion) + 22));
         }
 
         return $id;
@@ -265,4 +265,12 @@ public static function handleUnserializeCallback($class)
     {
         throw new \DomainException('Class not found: '.$class);
     }
+
+    /**
+     * @return string the namespace separator for cache keys
+     */
+    protected static function getNsSeparator()
+    {
+        return ':';
+    }
 }

From 270f10cc81b2222e98dffb15f3746b97107c0764 Mon Sep 17 00:00:00 2001
From: Roland Franssen <franssen.roland@gmail.com>
Date: Sat, 15 Jun 2019 08:54:32 +0200
Subject: [PATCH 34/56] [HttpFoundation] Fix SA/phpdoc JsonResponse

---
 .../Component/HttpFoundation/JsonResponse.php   | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index 24798eea42b32..9c7c8e4c9b3be 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -55,10 +55,10 @@ public function __construct($data = null, $status = 200, $headers = [], $json =
      *
      * Example:
      *
-     *     return JsonResponse::create($data, 200)
+     *     return JsonResponse::create(['key' => 'value'])
      *         ->setSharedMaxAge(300);
      *
-     * @param mixed $data    The json response data
+     * @param mixed $data    The JSON response data
      * @param int   $status  The response status code
      * @param array $headers An array of response headers
      *
@@ -70,7 +70,18 @@ public static function create($data = null, $status = 200, $headers = [])
     }
 
     /**
-     * Make easier the creation of JsonResponse from raw json.
+     * Factory method for chainability.
+     *
+     * Example:
+     *
+     *     return JsonResponse::fromJsonString('{"key": "value"}')
+     *         ->setSharedMaxAge(300);
+     *
+     * @param string|null $data    The JSON response string
+     * @param int         $status  The response status code
+     * @param array       $headers An array of response headers
+     *
+     * @return static
      */
     public static function fromJsonString($data = null, $status = 200, $headers = [])
     {

From 9f960f34e7785d3bde67b850ac4754cc46f853bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Deruss=C3=A9?= <jeremy@derusse.com>
Date: Mon, 17 Jun 2019 16:05:50 +0200
Subject: [PATCH 35/56] Fix expired lock not cleaned

---
 src/Symfony/Component/Lock/Lock.php           | 10 +++++++
 .../Component/Lock/Store/CombinedStore.php    |  8 ++---
 .../Lock/Store/ExpiringStoreTrait.php         | 30 +++++++++++++++++++
 .../Component/Lock/Store/MemcachedStore.php   | 11 +++----
 .../Component/Lock/Store/RedisStore.php       | 11 +++----
 .../Tests/Store/ExpiringStoreTestTrait.php    | 25 ++++++++++++++++
 6 files changed, 77 insertions(+), 18 deletions(-)
 create mode 100644 src/Symfony/Component/Lock/Store/ExpiringStoreTrait.php

diff --git a/src/Symfony/Component/Lock/Lock.php b/src/Symfony/Component/Lock/Lock.php
index 1a6c0e26ee0c9..0d5714bde20c0 100644
--- a/src/Symfony/Component/Lock/Lock.php
+++ b/src/Symfony/Component/Lock/Lock.php
@@ -83,6 +83,11 @@ public function acquire($blocking = false)
             }
 
             if ($this->key->isExpired()) {
+                try {
+                    $this->release();
+                } catch (\Exception $e) {
+                    // swallow exception to not hide the original issue
+                }
                 throw new LockExpiredException(sprintf('Failed to store the "%s" lock.', $this->key));
             }
 
@@ -117,6 +122,11 @@ public function refresh()
             $this->dirty = true;
 
             if ($this->key->isExpired()) {
+                try {
+                    $this->release();
+                } catch (\Exception $e) {
+                    // swallow exception to not hide the original issue
+                }
                 throw new LockExpiredException(sprintf('Failed to put off the expiration of the "%s" lock within the specified time.', $this->key));
             }
 
diff --git a/src/Symfony/Component/Lock/Store/CombinedStore.php b/src/Symfony/Component/Lock/Store/CombinedStore.php
index 38f3f35e750e9..6038b3be93d31 100644
--- a/src/Symfony/Component/Lock/Store/CombinedStore.php
+++ b/src/Symfony/Component/Lock/Store/CombinedStore.php
@@ -16,7 +16,6 @@
 use Psr\Log\NullLogger;
 use Symfony\Component\Lock\Exception\InvalidArgumentException;
 use Symfony\Component\Lock\Exception\LockConflictedException;
-use Symfony\Component\Lock\Exception\LockExpiredException;
 use Symfony\Component\Lock\Exception\NotSupportedException;
 use Symfony\Component\Lock\Key;
 use Symfony\Component\Lock\StoreInterface;
@@ -30,6 +29,7 @@
 class CombinedStore implements StoreInterface, LoggerAwareInterface
 {
     use LoggerAwareTrait;
+    use ExpiringStoreTrait;
 
     /** @var StoreInterface[] */
     private $stores;
@@ -78,6 +78,8 @@ public function save(Key $key)
             }
         }
 
+        $this->checkNotExpired($key);
+
         if ($this->strategy->isMet($successCount, $storesCount)) {
             return;
         }
@@ -125,9 +127,7 @@ public function putOffExpiration(Key $key, $ttl)
             }
         }
 
-        if ($key->isExpired()) {
-            throw new LockExpiredException(sprintf('Failed to put off the expiration of the "%s" lock within the specified time.', $key));
-        }
+        $this->checkNotExpired($key);
 
         if ($this->strategy->isMet($successCount, $storesCount)) {
             return;
diff --git a/src/Symfony/Component/Lock/Store/ExpiringStoreTrait.php b/src/Symfony/Component/Lock/Store/ExpiringStoreTrait.php
new file mode 100644
index 0000000000000..e22c4405e4151
--- /dev/null
+++ b/src/Symfony/Component/Lock/Store/ExpiringStoreTrait.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Lock\Store;
+
+use Symfony\Component\Lock\Exception\LockExpiredException;
+use Symfony\Component\Lock\Key;
+
+trait ExpiringStoreTrait
+{
+    private function checkNotExpired(Key $key)
+    {
+        if ($key->isExpired()) {
+            try {
+                $this->delete($key);
+            } catch (\Exception $e) {
+                // swallow exception to not hide the original issue
+            }
+            throw new LockExpiredException(sprintf('Failed to store the "%s" lock.', $key));
+        }
+    }
+}
diff --git a/src/Symfony/Component/Lock/Store/MemcachedStore.php b/src/Symfony/Component/Lock/Store/MemcachedStore.php
index 9b795504c990f..7a51d6149b301 100644
--- a/src/Symfony/Component/Lock/Store/MemcachedStore.php
+++ b/src/Symfony/Component/Lock/Store/MemcachedStore.php
@@ -13,7 +13,6 @@
 
 use Symfony\Component\Lock\Exception\InvalidArgumentException;
 use Symfony\Component\Lock\Exception\LockConflictedException;
-use Symfony\Component\Lock\Exception\LockExpiredException;
 use Symfony\Component\Lock\Key;
 use Symfony\Component\Lock\StoreInterface;
 
@@ -24,6 +23,8 @@
  */
 class MemcachedStore implements StoreInterface
 {
+    use ExpiringStoreTrait;
+
     private $memcached;
     private $initialTtl;
     /** @var bool */
@@ -64,9 +65,7 @@ public function save(Key $key)
             $this->putOffExpiration($key, $this->initialTtl);
         }
 
-        if ($key->isExpired()) {
-            throw new LockExpiredException(sprintf('Failed to store the "%s" lock.', $key));
-        }
+        $this->checkNotExpired($key);
     }
 
     public function waitAndSave(Key $key)
@@ -110,9 +109,7 @@ public function putOffExpiration(Key $key, $ttl)
             throw new LockConflictedException();
         }
 
-        if ($key->isExpired()) {
-            throw new LockExpiredException(sprintf('Failed to put off the expiration of the "%s" lock within the specified time.', $key));
-        }
+        $this->checkNotExpired($key);
     }
 
     /**
diff --git a/src/Symfony/Component/Lock/Store/RedisStore.php b/src/Symfony/Component/Lock/Store/RedisStore.php
index 2d7ba45366784..6070c2e74e760 100644
--- a/src/Symfony/Component/Lock/Store/RedisStore.php
+++ b/src/Symfony/Component/Lock/Store/RedisStore.php
@@ -14,7 +14,6 @@
 use Symfony\Component\Cache\Traits\RedisProxy;
 use Symfony\Component\Lock\Exception\InvalidArgumentException;
 use Symfony\Component\Lock\Exception\LockConflictedException;
-use Symfony\Component\Lock\Exception\LockExpiredException;
 use Symfony\Component\Lock\Key;
 use Symfony\Component\Lock\StoreInterface;
 
@@ -25,6 +24,8 @@
  */
 class RedisStore implements StoreInterface
 {
+    use ExpiringStoreTrait;
+
     private $redis;
     private $initialTtl;
 
@@ -66,9 +67,7 @@ public function save(Key $key)
             throw new LockConflictedException();
         }
 
-        if ($key->isExpired()) {
-            throw new LockExpiredException(sprintf('Failed to store the "%s" lock.', $key));
-        }
+        $this->checkNotExpired($key);
     }
 
     public function waitAndSave(Key $key)
@@ -94,9 +93,7 @@ public function putOffExpiration(Key $key, $ttl)
             throw new LockConflictedException();
         }
 
-        if ($key->isExpired()) {
-            throw new LockExpiredException(sprintf('Failed to put off the expiration of the "%s" lock within the specified time.', $key));
-        }
+        $this->checkNotExpired($key);
     }
 
     /**
diff --git a/src/Symfony/Component/Lock/Tests/Store/ExpiringStoreTestTrait.php b/src/Symfony/Component/Lock/Tests/Store/ExpiringStoreTestTrait.php
index f523780ce1444..bc96ff66f5dfb 100644
--- a/src/Symfony/Component/Lock/Tests/Store/ExpiringStoreTestTrait.php
+++ b/src/Symfony/Component/Lock/Tests/Store/ExpiringStoreTestTrait.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Lock\Tests\Store;
 
+use Symfony\Component\Lock\Exception\LockExpiredException;
 use Symfony\Component\Lock\Key;
 use Symfony\Component\Lock\StoreInterface;
 
@@ -105,4 +106,28 @@ public function testSetExpiration()
         $this->assertGreaterThanOrEqual(0, $key->getRemainingLifetime());
         $this->assertLessThanOrEqual(1, $key->getRemainingLifetime());
     }
+
+    public function testExpiredLockCleaned()
+    {
+        $resource = uniqid(__METHOD__, true);
+
+        $key1 = new Key($resource);
+        $key2 = new Key($resource);
+
+        /** @var StoreInterface $store */
+        $store = $this->getStore();
+        $key1->reduceLifetime(0);
+
+        $this->assertTrue($key1->isExpired());
+        try {
+            $store->save($key1);
+            $this->fail('The store shouldn\'t have save an expired key');
+        } catch (LockExpiredException $e) {
+        }
+
+        $this->assertFalse($store->exists($key1));
+
+        $store->save($key2);
+        $this->assertTrue($store->exists($key2));
+    }
 }

From 02a6f248b5041d68bf6e18d3e254aa7a79039a78 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Mon, 17 Jun 2019 19:18:24 +0200
Subject: [PATCH 36/56] [Cache] fix versioning with SimpleCacheAdapter

---
 .../Component/Cache/Adapter/SimpleCacheAdapter.php        | 2 ++
 src/Symfony/Component/Cache/Traits/AbstractTrait.php      | 8 +++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
index de4dd745cd119..dc3a9cec2dc03 100644
--- a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
@@ -78,6 +78,8 @@ protected function doSave(array $values, $lifetime)
 
     /**
      * @return string the namespace separator for cache keys
+     *
+     * @internal
      */
     protected static function getNsSeparator()
     {
diff --git a/src/Symfony/Component/Cache/Traits/AbstractTrait.php b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
index 83a86a5ee9e2e..e225e075428eb 100644
--- a/src/Symfony/Component/Cache/Traits/AbstractTrait.php
+++ b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
@@ -108,7 +108,7 @@ public function clear()
         if ($cleared = $this->versioningIsEnabled) {
             $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), static::getNsSeparator(), 5);
             try {
-                $cleared = $this->doSave(['@'.$this->namespace => $namespaceVersion], 0);
+                $cleared = $this->doSave([static::getNsSeparator().$this->namespace => $namespaceVersion], 0);
             } catch (\Exception $e) {
                 $cleared = false;
             }
@@ -237,12 +237,12 @@ private function getId($key)
         if ($this->versioningIsEnabled && '' === $this->namespaceVersion) {
             $this->namespaceVersion = '1'.static::getNsSeparator();
             try {
-                foreach ($this->doFetch(['@'.$this->namespace]) as $v) {
+                foreach ($this->doFetch([static::getNsSeparator().$this->namespace]) as $v) {
                     $this->namespaceVersion = $v;
                 }
                 if ('1'.static::getNsSeparator() === $this->namespaceVersion) {
                     $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), static::getNsSeparator(), 5);
-                    $this->doSave(['@'.$this->namespace => $this->namespaceVersion], 0);
+                    $this->doSave([static::getNsSeparator().$this->namespace => $this->namespaceVersion], 0);
                 }
             } catch (\Exception $e) {
             }
@@ -268,6 +268,8 @@ public static function handleUnserializeCallback($class)
 
     /**
      * @return string the namespace separator for cache keys
+     *
+     * @internal
      */
     protected static function getNsSeparator()
     {

From 2bf5da51da24fb8b490f18ec973086df112840dd Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Mon, 17 Jun 2019 19:26:15 +0200
Subject: [PATCH 37/56] [Cache] replace getNsSeparator by NS_SEPARATOR on
 AbstractTrait

---
 .../Cache/Adapter/AbstractAdapter.php         |  7 ++++-
 .../Cache/Adapter/SimpleCacheAdapter.php      | 15 ++++-------
 .../Component/Cache/Simple/AbstractCache.php  |  5 ++++
 .../Component/Cache/Traits/AbstractTrait.php  | 26 ++++++-------------
 4 files changed, 24 insertions(+), 29 deletions(-)

diff --git a/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php b/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
index 70af0c7314cac..0868c16d47cf8 100644
--- a/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/AbstractAdapter.php
@@ -25,6 +25,11 @@
  */
 abstract class AbstractAdapter implements AdapterInterface, LoggerAwareInterface, ResettableInterface
 {
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = ':';
+
     use AbstractTrait;
 
     private static $apcuSupported;
@@ -39,7 +44,7 @@ abstract class AbstractAdapter implements AdapterInterface, LoggerAwareInterface
      */
     protected function __construct($namespace = '', $defaultLifetime = 0)
     {
-        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::getNsSeparator();
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::NS_SEPARATOR;
         if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
             throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s")', $this->maxIdLength - 24, \strlen($namespace), $namespace));
         }
diff --git a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
index dc3a9cec2dc03..d3d0ede648a8a 100644
--- a/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/SimpleCacheAdapter.php
@@ -20,6 +20,11 @@
  */
 class SimpleCacheAdapter extends AbstractAdapter implements PruneableInterface
 {
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = '_';
+
     use ProxyTrait;
 
     private $miss;
@@ -75,14 +80,4 @@ protected function doSave(array $values, $lifetime)
     {
         return $this->pool->setMultiple($values, 0 === $lifetime ? null : $lifetime);
     }
-
-    /**
-     * @return string the namespace separator for cache keys
-     *
-     * @internal
-     */
-    protected static function getNsSeparator()
-    {
-        return '_';
-    }
 }
diff --git a/src/Symfony/Component/Cache/Simple/AbstractCache.php b/src/Symfony/Component/Cache/Simple/AbstractCache.php
index 0d715e48d2232..23b401c54be55 100644
--- a/src/Symfony/Component/Cache/Simple/AbstractCache.php
+++ b/src/Symfony/Component/Cache/Simple/AbstractCache.php
@@ -23,6 +23,11 @@
  */
 abstract class AbstractCache implements CacheInterface, LoggerAwareInterface, ResettableInterface
 {
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = ':';
+
     use AbstractTrait {
         deleteItems as private;
         AbstractTrait::deleteItem as delete;
diff --git a/src/Symfony/Component/Cache/Traits/AbstractTrait.php b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
index e225e075428eb..cd1f204139186 100644
--- a/src/Symfony/Component/Cache/Traits/AbstractTrait.php
+++ b/src/Symfony/Component/Cache/Traits/AbstractTrait.php
@@ -106,9 +106,9 @@ public function clear()
     {
         $this->deferred = [];
         if ($cleared = $this->versioningIsEnabled) {
-            $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), static::getNsSeparator(), 5);
+            $namespaceVersion = substr_replace(base64_encode(pack('V', mt_rand())), static::NS_SEPARATOR, 5);
             try {
-                $cleared = $this->doSave([static::getNsSeparator().$this->namespace => $namespaceVersion], 0);
+                $cleared = $this->doSave([static::NS_SEPARATOR.$this->namespace => $namespaceVersion], 0);
             } catch (\Exception $e) {
                 $cleared = false;
             }
@@ -235,14 +235,14 @@ private function getId($key)
         CacheItem::validateKey($key);
 
         if ($this->versioningIsEnabled && '' === $this->namespaceVersion) {
-            $this->namespaceVersion = '1'.static::getNsSeparator();
+            $this->namespaceVersion = '1'.static::NS_SEPARATOR;
             try {
-                foreach ($this->doFetch([static::getNsSeparator().$this->namespace]) as $v) {
+                foreach ($this->doFetch([static::NS_SEPARATOR.$this->namespace]) as $v) {
                     $this->namespaceVersion = $v;
                 }
-                if ('1'.static::getNsSeparator() === $this->namespaceVersion) {
-                    $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), static::getNsSeparator(), 5);
-                    $this->doSave([static::getNsSeparator().$this->namespace => $this->namespaceVersion], 0);
+                if ('1'.static::NS_SEPARATOR === $this->namespaceVersion) {
+                    $this->namespaceVersion = substr_replace(base64_encode(pack('V', time())), static::NS_SEPARATOR, 5);
+                    $this->doSave([static::NS_SEPARATOR.$this->namespace => $this->namespaceVersion], 0);
                 }
             } catch (\Exception $e) {
             }
@@ -252,7 +252,7 @@ private function getId($key)
             return $this->namespace.$this->namespaceVersion.$key;
         }
         if (\strlen($id = $this->namespace.$this->namespaceVersion.$key) > $this->maxIdLength) {
-            $id = $this->namespace.$this->namespaceVersion.substr_replace(base64_encode(hash('sha256', $key, true)), static::getNsSeparator(), -(\strlen($this->namespaceVersion) + 22));
+            $id = $this->namespace.$this->namespaceVersion.substr_replace(base64_encode(hash('sha256', $key, true)), static::NS_SEPARATOR, -(\strlen($this->namespaceVersion) + 22));
         }
 
         return $id;
@@ -265,14 +265,4 @@ public static function handleUnserializeCallback($class)
     {
         throw new \DomainException('Class not found: '.$class);
     }
-
-    /**
-     * @return string the namespace separator for cache keys
-     *
-     * @internal
-     */
-    protected static function getNsSeparator()
-    {
-        return ':';
-    }
 }

From d8d43e6195f786d5ae2816080c2467159919d389 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Tue, 18 Jun 2019 23:17:25 +0200
Subject: [PATCH 38/56] [Debug] workaround BC break in PHP 7.3

---
 src/Symfony/Component/Debug/ErrorHandler.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Symfony/Component/Debug/ErrorHandler.php b/src/Symfony/Component/Debug/ErrorHandler.php
index d871b91538c22..c7dc3279d73af 100644
--- a/src/Symfony/Component/Debug/ErrorHandler.php
+++ b/src/Symfony/Component/Debug/ErrorHandler.php
@@ -382,6 +382,11 @@ private function reRegister($prev)
      */
     public function handleError($type, $message, $file, $line)
     {
+        // @deprecated to be removed in Symfony 5.0
+        if (\PHP_VERSION_ID >= 70300 && $message && '"' === $message[0] && 0 === strpos($message, '"continue') && preg_match('/^"continue(?: \d++)?" targeting switch is equivalent to "break(?: \d++)?"\. Did you mean to use "continue(?: \d++)?"\?$/', $message)) {
+            $type = E_DEPRECATED;
+        }
+
         // Level is the current error reporting level to manage silent error.
         $level = error_reporting();
         $silenced = 0 === ($level & $type);

From 494281465da5b5f2f39b098f2b85e7877127099c Mon Sep 17 00:00:00 2001
From: Amrouche Hamza <laharl.moon@gmail.com>
Date: Wed, 19 Jun 2019 07:40:07 +0200
Subject: [PATCH 39/56] [FrameworkBundle] minor: fix typo in SessionTest

---
 .../Bundle/FrameworkBundle/Tests/Functional/SessionTest.php     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
index aad3d77949ba4..bf1b76cdc743c 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
@@ -71,7 +71,7 @@ public function testFlash($config, $insulate)
 
     /**
      * See if two separate insulated clients can run without
-     * polluting eachother's session data.
+     * polluting each other's session data.
      *
      * @dataProvider getConfigs
      */

From 32d02d61414e5938602a1cee993f628fad0719ef Mon Sep 17 00:00:00 2001
From: Stefano Degenkamp <stefanodegenkamp@gmail.com>
Date: Wed, 19 Jun 2019 16:56:52 +0200
Subject: [PATCH 40/56] Update ajax security cheat sheet link

As the cheat sheet series project has been moved to github.
---
 src/Symfony/Component/HttpFoundation/JsonResponse.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index 24798eea42b32..bb1fe1d0ae40d 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -18,7 +18,7 @@
  * object. It is however recommended that you do return an object as it
  * protects yourself against XSSI and JSON-JavaScript Hijacking.
  *
- * @see https://www.owasp.org/index.php/OWASP_AJAX_Security_Guidelines#Always_return_JSON_with_an_Object_on_the_outside
+ * @see https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/AJAX_Security_Cheat_Sheet.md#always-return-json-with-an-object-on-the-outside
  *
  * @author Igor Wiedler <igor@wiedler.ch>
  */

From bf6d2532de8e6bc7a6906c9aab750e4a0c966456 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A1chym=20Tou=C5=A1ek?= <enumag@gmail.com>
Date: Fri, 14 Jun 2019 12:02:44 +0200
Subject: [PATCH 41/56] [Validator] Fix GroupSequenceProvider annotation

---
 src/Symfony/Component/Validator/Constraints/GroupSequence.php   | 2 +-
 .../Component/Validator/GroupSequenceProviderInterface.php      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/Validator/Constraints/GroupSequence.php b/src/Symfony/Component/Validator/Constraints/GroupSequence.php
index a39d712bf4be7..fc34ca1a458e2 100644
--- a/src/Symfony/Component/Validator/Constraints/GroupSequence.php
+++ b/src/Symfony/Component/Validator/Constraints/GroupSequence.php
@@ -57,7 +57,7 @@ class GroupSequence
     /**
      * The groups in the sequence.
      *
-     * @var string[]|array[]|GroupSequence[]
+     * @var string[]|string[][]|GroupSequence[]
      */
     public $groups;
 
diff --git a/src/Symfony/Component/Validator/GroupSequenceProviderInterface.php b/src/Symfony/Component/Validator/GroupSequenceProviderInterface.php
index 5894397da4deb..1ce504331f7f3 100644
--- a/src/Symfony/Component/Validator/GroupSequenceProviderInterface.php
+++ b/src/Symfony/Component/Validator/GroupSequenceProviderInterface.php
@@ -22,7 +22,7 @@ interface GroupSequenceProviderInterface
      * Returns which validation groups should be used for a certain state
      * of the object.
      *
-     * @return string[]|GroupSequence An array of validation groups
+     * @return string[]|string[][]|GroupSequence An array of validation groups
      */
     public function getGroupSequence();
 }

From ea5b1f4d67e3218a005d6109b64250c80e81d98b Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Thu, 20 Jun 2019 12:19:18 +0200
Subject: [PATCH 42/56] tag the FileType service as a form type

---
 src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml b/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
index 5088554ff1947..c5bc8cf5dbae6 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
@@ -93,6 +93,7 @@
             <deprecated>The "%service_id%" service is deprecated since Symfony 3.1 and will be removed in 4.0.</deprecated>
         </service>
         <service id="form.type.file" class="Symfony\Component\Form\Extension\Core\Type\FileType" public="true">
+            <tag name="form.type" />
             <argument type="service" id="translator" on-invalid="ignore" />
         </service>
         <service id="form.type.hidden" class="Symfony\Component\Form\Extension\Core\Type\HiddenType" public="true">

From 74387cf21fed1f77c925a869e9585282544d47be Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Thu, 20 Jun 2019 22:29:36 +0200
Subject: [PATCH 43/56] fix translation domain

---
 src/Symfony/Component/Form/Extension/Core/Type/FileType.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Form/Extension/Core/Type/FileType.php b/src/Symfony/Component/Form/Extension/Core/Type/FileType.php
index f8afce2ee5a4d..86f161307ba2b 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/FileType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/FileType.php
@@ -159,7 +159,7 @@ private function getFileUploadError($errorCode)
         }
 
         if (null !== $this->translator) {
-            $message = $this->translator->trans($messageTemplate, $messageParameters);
+            $message = $this->translator->trans($messageTemplate, $messageParameters, 'validators');
         } else {
             $message = strtr($messageTemplate, $messageParameters);
         }

From 7a4570dcac3335a12547c3299c8ded9101417795 Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Sat, 22 Jun 2019 22:10:25 +0200
Subject: [PATCH 44/56] fix accessing session bags

---
 .../HttpFoundation/Session/Session.php        |  4 ++-
 .../Tests/Session/SessionTest.php             | 25 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/Session/Session.php b/src/Symfony/Component/HttpFoundation/Session/Session.php
index 867ceba97f8db..db0b9aeb0b118 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Session.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Session.php
@@ -253,7 +253,9 @@ public function registerBag(SessionBagInterface $bag)
      */
     public function getBag($name)
     {
-        return $this->storage->getBag($name)->getBag();
+        $bag = $this->storage->getBag($name);
+
+        return method_exists($bag, 'getBag') ? $bag->getBag() : $bag;
     }
 
     /**
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/SessionTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/SessionTest.php
index afa00fc7c3046..acb129984edd1 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/SessionTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/SessionTest.php
@@ -15,6 +15,7 @@
 use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag;
 use Symfony\Component\HttpFoundation\Session\Flash\FlashBag;
 use Symfony\Component\HttpFoundation\Session\Session;
+use Symfony\Component\HttpFoundation\Session\SessionBagProxy;
 use Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage;
 
 /**
@@ -260,4 +261,28 @@ public function testIsEmpty()
         $flash->get('hello');
         $this->assertTrue($this->session->isEmpty());
     }
+
+    public function testGetBagWithBagImplementingGetBag()
+    {
+        $bag = new AttributeBag();
+        $bag->setName('foo');
+
+        $storage = new MockArraySessionStorage();
+        $storage->registerBag($bag);
+
+        $this->assertSame($bag, (new Session($storage))->getBag('foo'));
+    }
+
+    public function testGetBagWithBagNotImplementingGetBag()
+    {
+        $data = [];
+
+        $bag = new AttributeBag();
+        $bag->setName('foo');
+
+        $storage = new MockArraySessionStorage();
+        $storage->registerBag(new SessionBagProxy($bag, $data, $usageIndex));
+
+        $this->assertSame($bag, (new Session($storage))->getBag('foo'));
+    }
 }

From a030e393c51a26e9246be17f9c05203b25549793 Mon Sep 17 00:00:00 2001
From: Emre Akinci <eemreakinci@gmail.com>
Date: Thu, 20 Jun 2019 10:57:58 +0300
Subject: [PATCH 45/56] Turkish translation added to Form Component

---
 .../Resources/translations/validators.tr.xlf  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/Symfony/Component/Form/Resources/translations/validators.tr.xlf

diff --git a/src/Symfony/Component/Form/Resources/translations/validators.tr.xlf b/src/Symfony/Component/Form/Resources/translations/validators.tr.xlf
new file mode 100644
index 0000000000000..70e8541ed909c
--- /dev/null
+++ b/src/Symfony/Component/Form/Resources/translations/validators.tr.xlf
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2">
+    <file source-language="en" datatype="plaintext" original="file.ext">
+        <body>
+            <trans-unit id="28">
+                <source>This form should not contain extra fields.</source>
+                <target>Form ekstra alanlar içeremez.</target>
+            </trans-unit>
+            <trans-unit id="29">
+                <source>The uploaded file was too large. Please try to upload a smaller file.</source>
+                <target>Yüklenen dosya boyutu çok yüksek. Lütfen daha küçük bir dosya yüklemeyi deneyin.</target>
+            </trans-unit>
+            <trans-unit id="30">
+                <source>The CSRF token is invalid. Please try to resubmit the form.</source>
+                <target>CSRF fişi geçersiz. Formu tekrar göndermeyi deneyin.</target>
+            </trans-unit>
+        </body>
+    </file>
+</xliff>

From 196ee5599d9e86bcf0876674b50690b9b10ba351 Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Sun, 23 Jun 2019 10:10:04 +0200
Subject: [PATCH 46/56] fix typos

---
 src/Symfony/Component/Dotenv/Tests/DotenvTest.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Component/Dotenv/Tests/DotenvTest.php b/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
index 7137d83b36f3f..97ae5090c9730 100644
--- a/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
+++ b/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
@@ -209,7 +209,7 @@ public function testLoadDirectory()
         $dotenv->load(__DIR__);
     }
 
-    public function testServerSuperglobalIsNotOverriden()
+    public function testServerSuperglobalIsNotOverridden()
     {
         $originalValue = $_SERVER['argc'];
 
@@ -219,7 +219,7 @@ public function testServerSuperglobalIsNotOverriden()
         $this->assertSame($originalValue, $_SERVER['argc']);
     }
 
-    public function testEnvVarIsNotOverriden()
+    public function testEnvVarIsNotOverridden()
     {
         putenv('TEST_ENV_VAR=original_value');
         $_SERVER['TEST_ENV_VAR'] = 'original_value';
@@ -230,7 +230,7 @@ public function testEnvVarIsNotOverriden()
         $this->assertSame('original_value', getenv('TEST_ENV_VAR'));
     }
 
-    public function testHttpVarIsPartiallyOverriden()
+    public function testHttpVarIsPartiallyOverridden()
     {
         $_SERVER['HTTP_TEST_ENV_VAR'] = 'http_value';
 

From 0d7d1f81bce8af65238804a34dfa45f06955a98b Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Sun, 23 Jun 2019 10:51:25 +0200
Subject: [PATCH 47/56] add test to avoid regressions

---
 .../Filesystem/Tests/FilesystemTest.php          | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
index 8f2bde2e36eeb..186b2ef3642d5 100644
--- a/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
+++ b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
@@ -1348,6 +1348,22 @@ public function testMirrorContentsWithSameNameAsSourceOrTargetWithDeleteOption()
         $this->assertFileNotExists($targetPath.'target');
     }
 
+    public function testMirrorFromSubdirectoryInToParentDirectory()
+    {
+        $targetPath = $this->workspace.\DIRECTORY_SEPARATOR.'foo'.\DIRECTORY_SEPARATOR;
+        $sourcePath = $targetPath.'bar'.\DIRECTORY_SEPARATOR;
+        $file1 = $sourcePath.'file1';
+        $file2 = $sourcePath.'file2';
+
+        $this->filesystem->mkdir($sourcePath);
+        file_put_contents($file1, 'FILE1');
+        file_put_contents($file2, 'FILE2');
+
+        $this->filesystem->mirror($sourcePath, $targetPath);
+
+        $this->assertFileEquals($file1, $targetPath.'file1');
+    }
+
     /**
      * @dataProvider providePathsForIsAbsolutePath
      */

From 2ad32df6e052af856ebcd979ef0a2424e50a1180 Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@sensiolabs.de>
Date: Tue, 25 Jun 2019 09:45:31 +0200
Subject: [PATCH 48/56] collect called listeners information only once

---
 .../Debug/TraceableEventDispatcher.php        | 21 ++++++++-----------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php b/src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php
index 752c8aa8293e6..017459723d92d 100644
--- a/src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php
+++ b/src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php
@@ -191,21 +191,18 @@ public function getNotCalledListeners()
             return [];
         }
 
+        $calledListeners = [];
+
+        if (null !== $this->callStack) {
+            foreach ($this->callStack as $calledListener) {
+                $calledListeners[] = $calledListener->getWrappedListener();
+            }
+        }
+
         $notCalled = [];
         foreach ($allListeners as $eventName => $listeners) {
             foreach ($listeners as $listener) {
-                $called = false;
-                if (null !== $this->callStack) {
-                    foreach ($this->callStack as $calledListener) {
-                        if ($calledListener->getWrappedListener() === $listener) {
-                            $called = true;
-
-                            break;
-                        }
-                    }
-                }
-
-                if (!$called) {
+                if (!\in_array($listener, $calledListeners, true)) {
                     if (!$listener instanceof WrappedListener) {
                         $listener = new WrappedListener($listener, null, $this->stopwatch, $this);
                     }

From 61ea53d57f3204a0202a9fdaaefeca3e2d5ee2d9 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Tue, 25 Jun 2019 14:22:47 +0200
Subject: [PATCH 49/56] [Security/Core] Don't use ParagonIE_Sodium_Compat

---
 .../Security/Core/Encoder/Argon2iPasswordEncoder.php          | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php b/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
index 53c016397632d..dae682bf31028 100644
--- a/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
+++ b/src/Symfony/Component/Security/Core/Encoder/Argon2iPasswordEncoder.php
@@ -26,10 +26,6 @@ public static function isSupported()
             return true;
         }
 
-        if (class_exists('ParagonIE_Sodium_Compat') && method_exists('ParagonIE_Sodium_Compat', 'crypto_pwhash_is_available')) {
-            return \ParagonIE_Sodium_Compat::crypto_pwhash_is_available();
-        }
-
         return \function_exists('sodium_crypto_pwhash_str') || \extension_loaded('libsodium');
     }
 

From 7b8ee3ece80a8d428ae6605eebed61edbe01654a Mon Sep 17 00:00:00 2001
From: Tomas <norkunas.tom@gmail.com>
Date: Tue, 25 Jun 2019 10:30:09 +0300
Subject: [PATCH 50/56] Fix type error

---
 .../Doctrine/DataCollector/DoctrineDataCollector.php |  3 +++
 .../DataCollector/DoctrineDataCollectorTest.php      | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php b/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
index 19decb46e49cf..152c07bf60a91 100644
--- a/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
+++ b/src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php
@@ -138,6 +138,9 @@ private function sanitizeQuery($connectionName, $query)
         if (!\is_array($query['params'])) {
             $query['params'] = [$query['params']];
         }
+        if (!\is_array($query['types'])) {
+            $query['types'] = [];
+        }
         foreach ($query['params'] as $j => $param) {
             if (isset($query['types'][$j])) {
                 // Transform the param according to the type
diff --git a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
index 32b4aa730cad3..a789b7a9793fc 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php
@@ -102,6 +102,18 @@ public function testCollectQueryWithNoParams()
         $this->assertTrue($collectedQueries['default'][1]['explainable']);
     }
 
+    public function testCollectQueryWithNoTypes()
+    {
+        $queries = [
+            ['sql' => 'SET sql_mode=(SELECT REPLACE(@@sql_mode, \'ONLY_FULL_GROUP_BY\', \'\'))', 'params' => [], 'types' => null, 'executionMS' => 1],
+        ];
+        $c = $this->createCollector($queries);
+        $c->collect(new Request(), new Response());
+
+        $collectedQueries = $c->getQueries();
+        $this->assertSame([], $collectedQueries['default'][0]['types']);
+    }
+
     public function testReset()
     {
         $queries = [

From 9e6f4b2122914d8175d846fc18a4b9a79d65a4ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?K=C3=A9vin=20Dunglas?= <dunglas@gmail.com>
Date: Tue, 25 Jun 2019 17:43:39 +0200
Subject: [PATCH 51/56] [FrameworkBundle] Fix calling Client::getProfile()
 before sending a request

---
 src/Symfony/Bundle/FrameworkBundle/Client.php               | 2 +-
 .../FrameworkBundle/Tests/Functional/ProfilerTest.php       | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Client.php b/src/Symfony/Bundle/FrameworkBundle/Client.php
index 6473f97584f39..6c75b5ab14029 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Client.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Client.php
@@ -66,7 +66,7 @@ public function getKernel()
      */
     public function getProfile()
     {
-        if (!$this->kernel->getContainer()->has('profiler')) {
+        if (null === $this->response || !$this->kernel->getContainer()->has('profiler')) {
             return false;
         }
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ProfilerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ProfilerTest.php
index c5252c0d5892e..2768b59a1c3f5 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ProfilerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ProfilerTest.php
@@ -28,9 +28,9 @@ public function testProfilerIsDisabled($insulate)
 
         // enable the profiler for the next request
         $client->enableProfiler();
-        $crawler = $client->request('GET', '/profiler');
-        $profile = $client->getProfile();
-        $this->assertInternalType('object', $profile);
+        $this->assertFalse($client->getProfile());
+        $client->request('GET', '/profiler');
+        $this->assertInternalType('object', $client->getProfile());
 
         $client->request('GET', '/profiler');
         $this->assertFalse($client->getProfile());

From 85ac1a6dd56a37d43344b5739f852abe323bc6bc Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 26 Jun 2019 12:03:25 +0200
Subject: [PATCH 52/56] Bump phpunit-bridge

---
 composer.json                                 | 2 +-
 phpunit                                       | 2 +-
 src/Symfony/Bridge/PhpUnit/bin/simple-phpunit | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/composer.json b/composer.json
index 6da4810c5c456..143f73d3c2f35 100644
--- a/composer.json
+++ b/composer.json
@@ -98,7 +98,7 @@
         "ocramius/proxy-manager": "~0.4|~1.0|~2.0",
         "predis/predis": "~1.0",
         "egulias/email-validator": "~1.2,>=1.2.8|~2.0",
-        "symfony/phpunit-bridge": "~3.4|~4.0",
+        "symfony/phpunit-bridge": "~3.4|~4.0|~5.0",
         "symfony/security-acl": "~2.8|~3.0",
         "phpdocumentor/reflection-docblock": "^3.0|^4.0"
     },
diff --git a/phpunit b/phpunit
index 5bbbf0ded1863..dc9e127b78fb7 100755
--- a/phpunit
+++ b/phpunit
@@ -1,7 +1,7 @@
 #!/usr/bin/env php
 <?php
 
-// Cache-Id: https://github.com/symfony/phpunit-bridge/commit/32c5fa570117630dad45c21528b93d26bad02bc1
+// Cache-Id: https://github.com/symfony/phpunit-bridge/commit/ded5bdfc4267e9e7c6e7f39c6bde66d23fc7b32f
 
 if (!file_exists(__DIR__.'/vendor/symfony/phpunit-bridge/bin/simple-phpunit')) {
     echo "Unable to find the `simple-phpunit` script in `vendor/symfony/phpunit-bridge/bin/`.\nPlease run `composer update` before running this command.\n";
diff --git a/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit b/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit
index c81dcd26bec5e..c0f4b782b64a9 100755
--- a/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit
+++ b/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit
@@ -11,7 +11,7 @@
  */
 
 // Please update when phpunit needs to be reinstalled with fresh deps:
-// Cache-Id-Version: 2018-11-20 15:30 UTC
+// Cache-Id-Version: 2019-06-26 11:00 UTC
 
 error_reporting(-1);
 

From 753bf7e0df22062f63d559135e64c5b4f5914906 Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Wed, 26 Jun 2019 13:14:13 +0200
Subject: [PATCH 53/56] Fixed type annotation.

---
 .../Component/Routing/Generator/UrlGeneratorInterface.php   | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Component/Routing/Generator/UrlGeneratorInterface.php b/src/Symfony/Component/Routing/Generator/UrlGeneratorInterface.php
index f7d37b2564b12..64714d354dba2 100644
--- a/src/Symfony/Component/Routing/Generator/UrlGeneratorInterface.php
+++ b/src/Symfony/Component/Routing/Generator/UrlGeneratorInterface.php
@@ -71,9 +71,9 @@ interface UrlGeneratorInterface extends RequestContextAwareInterface
      *
      * The special parameter _fragment will be used as the document fragment suffixed to the final URL.
      *
-     * @param string $name          The name of the route
-     * @param mixed  $parameters    An array of parameters
-     * @param int    $referenceType The type of reference to be generated (one of the constants)
+     * @param string  $name          The name of the route
+     * @param mixed[] $parameters    An array of parameters
+     * @param int     $referenceType The type of reference to be generated (one of the constants)
      *
      * @return string The generated URL
      *

From 6425639fe0b80de683909b9bdb2765c21b1533ab Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Wed, 26 Jun 2019 15:56:21 +0200
Subject: [PATCH 54/56] updated CHANGELOG for 3.4.29

---
 CHANGELOG-3.4.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/CHANGELOG-3.4.md b/CHANGELOG-3.4.md
index 7b2094530cef7..a358d609f3cc6 100644
--- a/CHANGELOG-3.4.md
+++ b/CHANGELOG-3.4.md
@@ -7,6 +7,31 @@ in 3.4 minor versions.
 To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
 To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v3.4.0...v3.4.1
 
+* 3.4.29 (2019-06-26)
+
+ * bug #32137 [HttpFoundation] fix accessing session bags (xabbuh)
+ * bug #32164 [EventDispatcher] collect called listeners information only once (xabbuh)
+ * bug #32173 [FrameworkBundle] Fix calling Client::getProfile() before sending a request (dunglas)
+ * bug #32163 [DoctrineBridge] Fix type error (norkunas)
+ * bug #32170 [Security/Core] Don't use ParagonIE_Sodium_Compat (nicolas-grekas)
+ * bug #32123 [Form] fix translation domain (xabbuh)
+ * bug #32116 [FrameworkBundle] tag the FileType service as a form type (xabbuh)
+ * bug #32090 [Debug] workaround BC break in PHP 7.3 (nicolas-grekas)
+ * bug #32071 Fix expired lock not cleaned (jderusse)
+ * bug #32057 [HttpFoundation] Fix SA/phpdoc JsonResponse (ro0NL)
+ * bug #32025 SimpleCacheAdapter fails to cache any item if a namespace is used (moufmouf)
+ * bug #32037 [Form] validate composite constraints in all groups (xabbuh)
+ * bug #32007 [Serializer] Handle true and false appropriately in CSV encoder (battye)
+ * bug #32000 [Routing] fix absolute url generation when scheme is not known (Tobion)
+ * bug #32024 [VarDumper] fix dumping objects that implement __debugInfo() (nicolas-grekas)
+ * bug #31962 Fix reporting unsilenced deprecations from insulated tests (nicolas-grekas)
+ * bug #31865 [Form] Fix wrong DateTime on outdated ICU library (aweelex)
+ * bug #31863 [HttpFoundation] Fixed case-sensitive handling of cache-control header in RedirectResponse constructor (Ivo)
+ * bug #31869 Fix json-encoding when JSON_THROW_ON_ERROR is used (nicolas-grekas)
+ * bug #31860 [HttpFoundation] work around PHP 7.3 bug related to json_encode() (nicolas-grekas)
+ * bug #31407 [Security] added support for updated "distinguished name" format in x509 authentication (Robert Kopera)
+ * bug #31654 [HttpFoundation] Do not set X-Accel-Redirect for paths outside of X-Accel-Mapping (vilius-g)
+
 * 3.4.28 (2019-05-28)
 
  * bug #31584 [Workflow] Do not trigger extra guards (lyrixx)

From 7f886dcef08bec35c18a956fa911569e16d974d9 Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Wed, 26 Jun 2019 15:56:32 +0200
Subject: [PATCH 55/56] update CONTRIBUTORS for 3.4.29

---
 CONTRIBUTORS.md | 70 ++++++++++++++++++++++++++++++-------------------
 1 file changed, 43 insertions(+), 27 deletions(-)

diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index fddccc428e7c9..011ad9bee0777 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -19,8 +19,8 @@ Symfony is the result of the work of many people who made the code better
  - Jakub Zalas (jakubzalas)
  - Johannes S (johannes)
  - Javier Eguiluz (javier.eguiluz)
- - Kris Wallsmith (kriswallsmith)
  - Roland Franssen (ro0)
+ - Kris Wallsmith (kriswallsmith)
  - Grégoire Pineau (lyrixx)
  - Hugo Hamon (hhamon)
  - Abdellatif Ait boudad (aitboudad)
@@ -31,9 +31,9 @@ Symfony is the result of the work of many people who made the code better
  - Joseph Bielawski (stloyd)
  - Karma Dordrak (drak)
  - Lukas Kahwe Smith (lsmith)
+ - Yonel Ceruto (yonelceruto)
  - Martin Hasoň (hason)
  - Jeremy Mikola (jmikola)
- - Yonel Ceruto (yonelceruto)
  - Jean-François Simon (jfsimon)
  - Jules Pietri (heah)
  - Benjamin Eberlei (beberlei)
@@ -45,35 +45,35 @@ Symfony is the result of the work of many people who made the code better
  - Jonathan Wage (jwage)
  - Tobias Nyholm (tobias)
  - Lynn van der Berg (kjarli)
+ - Jérémy DERUSSÉ (jderusse)
  - Diego Saint Esteben (dosten)
  - Alexandre Salomé (alexandresalome)
  - William Durand (couac)
  - ornicar
- - Jérémy DERUSSÉ (jderusse)
+ - Alexander M. Turek (derrabus)
  - Dany Maillard (maidmaid)
  - Francis Besset (francisbesset)
  - stealth35 ‏ (stealth35)
  - Alexander Mols (asm89)
  - Matthias Pigulla (mpdude)
  - Bulat Shakirzyanov (avalanche123)
- - Alexander M. Turek (derrabus)
  - Saša Stamenković (umpirsky)
  - Peter Rehm (rpet)
- - Kevin Bond (kbond)
  - Pierre du Plessis (pierredup)
+ - Kevin Bond (kbond)
  - Henrik Bjørnskov (henrikbjorn)
  - Miha Vrhovnik
  - Diego Saint Esteben (dii3g0)
+ - Grégoire Paris (greg0ire)
  - Konstantin Kudryashov (everzet)
  - Gábor Egyed (1ed)
- - Grégoire Paris (greg0ire)
- - Bilal Amarni (bamarni)
  - Titouan Galopin (tgalopin)
+ - Konstantin Myakshin (koc)
+ - Bilal Amarni (bamarni)
  - Mathieu Piot (mpiot)
  - David Maicher (dmaicher)
  - Florin Patan (florinpatan)
  - Valentin Udaltsov (vudaltsov)
- - Konstantin Myakshin (koc)
  - Gabriel Ostrolucký (gadelat)
  - Vladimir Reznichenko (kalessil)
  - Jáchym Toušek (enumag)
@@ -95,12 +95,12 @@ Symfony is the result of the work of many people who made the code better
  - Luis Cordova (cordoval)
  - Graham Campbell (graham)
  - Daniel Holmes (dholmes)
+ - Thomas Calvet (fancyweb)
  - Toni Uebernickel (havvg)
  - Bart van den Burg (burgov)
  - Jordan Alliot (jalliot)
  - Jérôme Tamarelle (gromnan)
  - John Wards (johnwards)
- - Thomas Calvet (fancyweb)
  - Fran Moreno (franmomu)
  - Antoine Hérault (herzult)
  - Paráda József (paradajozsef)
@@ -120,6 +120,7 @@ Symfony is the result of the work of many people who made the code better
  - Peter Kokot (maastermedia)
  - Jacob Dreesen (jdreesen)
  - Florian Voutzinos (florianv)
+ - Jan Schädlich (jschaedl)
  - Colin Frei
  - Javier Spagnoletti (phansys)
  - Adrien Brault (adrienbrault)
@@ -152,7 +153,6 @@ Symfony is the result of the work of many people who made the code better
  - Arnaud Kleinpeter (nanocom)
  - Jannik Zschiesche (apfelbox)
  - Guilherme Blanco (guilhermeblanco)
- - Jan Schädlich (jschaedl)
  - SpacePossum
  - Pablo Godel (pgodel)
  - Jérémie Augustin (jaugustin)
@@ -175,13 +175,17 @@ Symfony is the result of the work of many people who made the code better
  - Alessandro Chitolina (alekitto)
  - Hiromi Hishida (77web)
  - Matthieu Ouellette-Vachon (maoueh)
+ - Massimiliano Arione (garak)
  - Michał Pipa (michal.pipa)
  - Dawid Nowak
+ - George Mponos (gmponos)
  - Amal Raghav (kertz)
  - Jonathan Ingram (jonathaningram)
  - Artur Kotyrba
  - Tyson Andre
  - GDIBass
+ - Samuel NELA (snela)
+ - Vincent Touzet (vincenttouzet)
  - Alexander Schranz (alexander-schranz)
  - jeremyFreeAgent (Jérémy Romey) (jeremyfreeagent)
  - James Halsall (jaitsu)
@@ -194,15 +198,12 @@ Symfony is the result of the work of many people who made the code better
  - Daniel Espendiller
  - Possum
  - Dorian Villet (gnutix)
- - George Mponos (gmponos)
  - Sergey Linnik (linniksa)
  - Richard Miller (mr_r_miller)
  - Albert Casademont (acasademont)
  - Mario A. Alvarez Garcia (nomack84)
  - Dennis Benkert (denderello)
  - DQNEO
- - Samuel NELA (snela)
- - Vincent Touzet (vincenttouzet)
  - Gregor Harlan (gharlan)
  - Gary PEGEOT (gary-p)
  - Ruben Gonzalez (rubenrua)
@@ -242,12 +243,12 @@ Symfony is the result of the work of many people who made the code better
  - Sven Paulus (subsven)
  - Maxime Veber (nek-)
  - Rui Marinho (ruimarinho)
- - Massimiliano Arione (garak)
  - Eugene Wissner
  - Pascal Montoya
  - Julien Brochet (mewt)
  - Leo Feyer
  - Tristan Darricau (nicofuma)
+ - Victor Bocharsky (bocharsky_bw)
  - Marcel Beerta (mazen)
  - Pavel Batanov (scaytrase)
  - Mantis Development
@@ -300,7 +301,6 @@ Symfony is the result of the work of many people who made the code better
  - Chekote
  - Antoine Makdessi (amakdessi)
  - Thomas Adam
- - Viktor Bocharskyi (bocharsky_bw)
  - Jhonny Lidfors (jhonne)
  - Diego Agulló (aeoris)
  - jdhoek
@@ -374,6 +374,7 @@ Symfony is the result of the work of many people who made the code better
  - Berny Cantos (xphere81)
  - Thierry Thuon (lepiaf)
  - Ricard Clau (ricardclau)
+ - dFayet
  - Mark Challoner (markchalloner)
  - Gennady Telegin (gtelegin)
  - Erin Millard
@@ -438,6 +439,7 @@ Symfony is the result of the work of many people who made the code better
  - Joe Lencioni
  - Daniel Tschinder
  - vladimir.reznichenko
+ - Ruud Kamphuis (ruudk)
  - Kai
  - Lee Rowlands
  - Krzysztof Piasecki (krzysztek)
@@ -458,6 +460,7 @@ Symfony is the result of the work of many people who made the code better
  - Karel Souffriau
  - Christophe L. (christophelau)
  - Anthon Pang (robocoder)
+ - Michael Käfer (michael_kaefer)
  - Sébastien Santoro (dereckson)
  - Brian King
  - Michel Salib (michelsalib)
@@ -539,6 +542,7 @@ Symfony is the result of the work of many people who made the code better
  - Sergio Santoro
  - Robin van der Vleuten (robinvdvleuten)
  - Philipp Rieber (bicpi)
+ - Tomas Norkūnas (norkunas)
  - Manuel de Ruiter (manuel)
  - Eduardo Oliveira (entering)
  - Ilya Antipenko (aivus)
@@ -563,6 +567,7 @@ Symfony is the result of the work of many people who made the code better
  - Jakub Škvára (jskvara)
  - Andrew Udvare (audvare)
  - alexpods
+ - Saif Eddin G
  - Adam Szaraniec (mimol)
  - Dariusz Ruminski
  - Erik Trapman (eriktrapman)
@@ -597,7 +602,6 @@ Symfony is the result of the work of many people who made the code better
  - Martin Morávek (keeo)
  - Steven Surowiec
  - Kevin Saliou (kbsali)
- - Ruud Kamphuis (ruudk)
  - Shawn Iwinski
  - Gawain Lynch (gawain)
  - NothingWeAre
@@ -630,6 +634,7 @@ Symfony is the result of the work of many people who made the code better
  - Baptiste Leduc (bleduc)
  - Jean-Christophe Cuvelier [Artack]
  - Simon DELICATA
+ - Dmitry Simushev
  - alcaeus
  - Fred Cox
  - vitaliytv
@@ -688,7 +693,6 @@ Symfony is the result of the work of many people who made the code better
  - Vincent Simonin
  - Alex Bogomazov (alebo)
  - maxime.steinhausser
- - dFayet
  - adev
  - Stefan Warman
  - Arkadius Stefanski (arkadius)
@@ -722,6 +726,7 @@ Symfony is the result of the work of many people who made the code better
  - Jaroslav Kuba
  - Stephan Vock
  - Benjamin Zikarsky (bzikarsky)
+ - battye
  - Simon Schick (simonsimcity)
  - redstar504
  - Tristan Roussel
@@ -763,10 +768,10 @@ Symfony is the result of the work of many people who made the code better
  - Arturas Smorgun (asarturas)
  - Alexander Volochnev (exelenz)
  - Michael Piecko
+ - Toni Peric (tperic)
  - yclian
  - Alan Poulain
  - Aleksey Prilipko
- - Tomas Norkūnas (norkunas)
  - Andrew Berry
  - twifty
  - Indra Gunawan (guind)
@@ -816,6 +821,7 @@ Symfony is the result of the work of many people who made the code better
  - John Bohn (jbohn)
  - Marc Morera (mmoreram)
  - Saif Eddin Gmati (azjezz)
+ - BENOIT POLASZEK (bpolaszek)
  - Andrew Hilobok (hilobok)
  - Noah Heck (myesain)
  - Christian Soronellas (theunic)
@@ -837,6 +843,7 @@ Symfony is the result of the work of many people who made the code better
  - Olivier Maisonneuve (olineuve)
  - Pedro Miguel Maymone de Resende (pedroresende)
  - Masterklavi
+ - Franco Traversaro (belinde)
  - Francis Turmel (fturmel)
  - Nikita Nefedov (nikita2206)
  - cgonzalez
@@ -851,6 +858,7 @@ Symfony is the result of the work of many people who made the code better
  - Antoine Lamirault
  - Adrien Lucas (adrienlucas)
  - Zhuravlev Alexander (scif)
+ - Stefano Degenkamp (steef)
  - James Michael DuPont
  - Tom Klingenberg
  - Christopher Hall (mythmakr)
@@ -904,6 +912,7 @@ Symfony is the result of the work of many people who made the code better
  - Benoît Bourgeois
  - mantulo
  - Stefan Kruppa
+ - mmokhi
  - corphi
  - grizlik
  - Derek ROTH
@@ -912,6 +921,7 @@ Symfony is the result of the work of many people who made the code better
  - Dmytro Boiko (eagle)
  - Shin Ohno (ganchiku)
  - Geert De Deckere (geertdd)
+ - Jacek Jędrzejewski (jacek.jedrzejewski)
  - Jan Kramer (jankramer)
  - abdul malik ikhsan (samsonasik)
  - Henry Snoek (snoek09)
@@ -922,7 +932,6 @@ Symfony is the result of the work of many people who made the code better
  - Morgan Auchede (mauchede)
  - Sascha Dens (saschadens)
  - Don Pinkster
- - Saif Eddin G
  - Maksim Muruev
  - Emil Einarsson
  - Thomas Landauer
@@ -933,13 +942,14 @@ Symfony is the result of the work of many people who made the code better
  - Tony Tran
  - Jacques Moati
  - Balazs Csaba (balazscsaba2006)
+ - Bill Hance (billhance)
  - Douglas Reith (douglas_reith)
  - Forfarle (forfarle)
  - Harry Walter (haswalt)
  - Johnson Page (jwpage)
- - Michael Käfer (michael_kaefer)
  - Ruben Gonzalez (rubenruateltek)
  - Michael Roterman (wtfzdotnet)
+ - Andrii Dembitskyi
  - Arno Geurts
  - Adán Lobato (adanlobato)
  - Ian Jenkins (jenkoian)
@@ -986,7 +996,6 @@ Symfony is the result of the work of many people who made the code better
  - d-ph
  - Renan Taranto (renan-taranto)
  - Thomas Talbot (ioni)
- - Dmitry Simushev
  - Rikijs Murgs
  - Uladzimir Tsykun
  - Ben Ramsey (ramsey)
@@ -1132,7 +1141,6 @@ Symfony is the result of the work of many people who made the code better
  - hugofonseca (fonsecas72)
  - Martynas Narbutas
  - Toon Verwerft (veewee)
- - battye
  - Bailey Parker
  - Eddie Jaoude
  - Antanas Arvasevicius
@@ -1269,6 +1277,7 @@ Symfony is the result of the work of many people who made the code better
  - Pablo Schläpfer
  - Gert de Pagter
  - Jelte Steijaert (jelte)
+ - David Négrier (moufmouf)
  - Quique Porta (quiqueporta)
  - stoccc
  - Andrea Quintino (dirk39)
@@ -1290,7 +1299,6 @@ Symfony is the result of the work of many people who made the code better
  - Lars Ambrosius Wallenborn (larsborn)
  - Oriol Mangas Abellan (oriolman)
  - Sebastian Göttschkes (sgoettschkes)
- - Toni Peric (tperic)
  - Tatsuya Tsuruoka
  - Ross Tuck
  - Kévin Gomez (kevin)
@@ -1324,7 +1332,6 @@ Symfony is the result of the work of many people who made the code better
  - Sébastien HOUZÉ
  - Jingyu Wang
  - steveYeah
- - BENOIT POLASZEK (bpolaszek)
  - Samy Dindane (dinduks)
  - Keri Henare (kerihenare)
  - Cédric Lahouste (rapotor)
@@ -1431,6 +1438,7 @@ Symfony is the result of the work of many people who made the code better
  - BilgeXA
  - r1pp3rj4ck
  - phydevs
+ - mmokhi
  - Robert Queck
  - Peter Bouwdewijn
  - mlively
@@ -1455,6 +1463,7 @@ Symfony is the result of the work of many people who made the code better
  - Mike Meier
  - Tim Jabs
  - Sebastian Ionescu
+ - Robert Kopera
  - Pablo Ogando Ferreira
  - Thomas Ploch
  - Simon Neidhold
@@ -1490,6 +1499,7 @@ Symfony is the result of the work of many people who made the code better
  - LubenZA
  - Olivier
  - Cyril PASCAL
+ - Michael Bessolov
  - pscheit
  - Wybren Koelmans
  - Zdeněk Drahoš
@@ -1651,6 +1661,7 @@ Symfony is the result of the work of many people who made the code better
  - downace
  - Aarón Nieves Fernández
  - Mike Meier
+ - Vilius Grigaliūnas
  - Kirill Saksin
  - Julien Pauli
  - Koalabaerchen
@@ -1698,6 +1709,7 @@ Symfony is the result of the work of many people who made the code better
  - Nicole Cordes
  - Martin Kirilov
  - amcastror
+ - Alexander Li (aweelex)
  - Bram Van der Sype (brammm)
  - Guile (guile)
  - Julien Moulin (lizjulien)
@@ -1717,6 +1729,7 @@ Symfony is the result of the work of many people who made the code better
  - Sam Ward
  - Walther Lalk
  - Adam
+ - Ivo
  - Sören Bernstein
  - devel
  - taiiiraaa
@@ -1751,7 +1764,6 @@ Symfony is the result of the work of many people who made the code better
  - Hans Nilsson (hansnilsson)
  - Andrew Marcinkevičius (ifdattic)
  - Ioana Hazsda (ioana-hazsda)
- - Jacek Jędrzejewski (jacek.jedrzejewski)
  - Jan Marek (janmarek)
  - Mark de Haan (markdehaan)
  - Dan Patrick (mdpatrick)
@@ -1760,6 +1772,7 @@ Symfony is the result of the work of many people who made the code better
  - tante kinast (tante)
  - Ahmed Hannachi (tiecoders)
  - Vincent LEFORT (vlefort)
+ - Walid BOUGHDIRI (walidboughdiri)
  - Darryl Hein (xmmedia)
  - Sadicov Vladimir (xtech)
  - Kevin EMO (zarcox)
@@ -1774,6 +1787,7 @@ Symfony is the result of the work of many people who made the code better
  - Vincent Chalnot
  - James Hudson
  - Tom Maguire
+ - Mateusz Lerczak
  - Richard Quadling
  - David Zuelke
  - Adrian
@@ -1948,6 +1962,7 @@ Symfony is the result of the work of many people who made the code better
  - Ulf Reimers (ureimers)
  - Wotre
  - goohib
+ - Chi-teck
  - Tom Counsell
  - Xavier HAUSHERR
  - Ron Gähler
@@ -2007,6 +2022,7 @@ Symfony is the result of the work of many people who made the code better
  - Cédric Bertolini
  - n-aleha
  - Anatol Belski
+ - Anderson Müller
  - Şəhriyar İmanov
  - Alexis BOYER
  - Kaipi Yann
@@ -2019,7 +2035,6 @@ Symfony is the result of the work of many people who made the code better
  - Tammy D
  - Daniel STANCU
  - Ryan Rud
- - mmokhi
  - Ondrej Slinták
  - vlechemin
  - Brian Corrigan
@@ -2110,10 +2125,10 @@ Symfony is the result of the work of many people who made the code better
  - Alex Olmos (alexolmos)
  - Antonio Mansilla (amansilla)
  - Robin Kanters (anddarerobin)
+ - Andrii Popov (andrii-popov)
  - Juan Ases García (ases)
  - Siragusa (asiragusa)
  - Daniel Basten (axhm3a)
- - Bill Hance (billhance)
  - Bernd Matzner (bmatzner)
  - Bram Tweedegolf (bram_tweedegolf)
  - Brandon Kelly (brandonkelly)
@@ -2150,6 +2165,7 @@ Symfony is the result of the work of many people who made the code better
  - Justin Rainbow (jrainbow)
  - Juan Luis (juanlugb)
  - JuntaTom (juntatom)
+ - Julien Manganne (juuuuuu)
  - Ismail Faizi (kanafghan)
  - Sébastien Armand (khepin)
  - Pierre-Chanel Gauthier (kmecnin)

From 5296d2dfa08d99890ea31f684fc03f6c0f3ff3ab Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Wed, 26 Jun 2019 15:56:39 +0200
Subject: [PATCH 56/56] updated VERSION for 3.4.29

---
 src/Symfony/Component/HttpKernel/Kernel.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 092fb6c762717..21d03f4ba5867 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -67,12 +67,12 @@ abstract class Kernel implements KernelInterface, RebootableInterface, Terminabl
     private $requestStackSize = 0;
     private $resetServices = false;
 
-    const VERSION = '3.4.29-DEV';
+    const VERSION = '3.4.29';
     const VERSION_ID = 30429;
     const MAJOR_VERSION = 3;
     const MINOR_VERSION = 4;
     const RELEASE_VERSION = 29;
-    const EXTRA_VERSION = 'DEV';
+    const EXTRA_VERSION = '';
 
     const END_OF_MAINTENANCE = '11/2020';
     const END_OF_LIFE = '11/2021';