diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
index b4eba04f97340..83a805d612120 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
@@ -134,7 +134,7 @@ public function testSet()
     {
         $sc = new Container();
         $sc->set('foo', $foo = new \stdClass());
-        $this->assertEquals($foo, $sc->get('foo'), '->set() sets a service');
+        $this->assertSame($foo, $sc->get('foo'), '->set() sets a service');
     }
 
     public function testSetWithNullResetTheService()
@@ -196,15 +196,15 @@ public function testGet()
     {
         $sc = new ProjectServiceContainer();
         $sc->set('foo', $foo = new \stdClass());
-        $this->assertEquals($foo, $sc->get('foo'), '->get() returns the service for the given id');
-        $this->assertEquals($foo, $sc->get('Foo'), '->get() returns the service for the given id, and converts id to lowercase');
-        $this->assertEquals($sc->__bar, $sc->get('bar'), '->get() returns the service for the given id');
-        $this->assertEquals($sc->__foo_bar, $sc->get('foo_bar'), '->get() returns the service if a get*Method() is defined');
-        $this->assertEquals($sc->__foo_baz, $sc->get('foo.baz'), '->get() returns the service if a get*Method() is defined');
-        $this->assertEquals($sc->__foo_baz, $sc->get('foo\\baz'), '->get() returns the service if a get*Method() is defined');
+        $this->assertSame($foo, $sc->get('foo'), '->get() returns the service for the given id');
+        $this->assertSame($foo, $sc->get('Foo'), '->get() returns the service for the given id, and converts id to lowercase');
+        $this->assertSame($sc->__bar, $sc->get('bar'), '->get() returns the service for the given id');
+        $this->assertSame($sc->__foo_bar, $sc->get('foo_bar'), '->get() returns the service if a get*Method() is defined');
+        $this->assertSame($sc->__foo_baz, $sc->get('foo.baz'), '->get() returns the service if a get*Method() is defined');
+        $this->assertSame($sc->__foo_baz, $sc->get('foo\\baz'), '->get() returns the service if a get*Method() is defined');
 
         $sc->set('bar', $bar = new \stdClass());
-        $this->assertEquals($bar, $sc->get('bar'), '->get() prefers to return a service defined with set() than one defined with a getXXXMethod()');
+        $this->assertSame($bar, $sc->get('bar'), '->get() prefers to return a service defined with set() than one defined with a getXXXMethod()');
 
         try {
             $sc->get('');
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
index ab9d5926106a5..05918b14ec52b 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
@@ -230,7 +230,7 @@ public function testOverrideServiceWhenUsingADumpedContainer()
         $container->set('bar', $bar = new \stdClass());
         $container->setParameter('foo_bar', 'foo_bar');
 
-        $this->assertEquals($bar, $container->get('bar'), '->set() overrides an already defined service');
+        $this->assertSame($bar, $container->get('bar'), '->set() overrides an already defined service');
     }
 
     public function testOverrideServiceWhenUsingADumpedContainerAndServiceIsUsedFromAnotherOne()