symfony
diff --git a/‎src/Symfony/Component/Console/Style/SymfonyStyle.php
Lines changed: 6 additions & 1 deletion b/‎src/Symfony/Component/Console/Style/SymfonyStyle.php
Lines changed: 6 additions & 1 deletion
diff --git a/‎src/Symfony/Component/Console/Tests/Style/SymfonyStyleTest.php
Lines changed: 17 additions & 3 deletions b/‎src/Symfony/Component/Console/Tests/Style/SymfonyStyleTest.php
Lines changed: 17 additions & 3 deletions
@@ -13,6 +13,7 @@
 
 use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Exception\RuntimeException;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Formatter\OutputFormatter;
 use Symfony\Component\Console\Helper\Helper;
 use Symfony\Component\Console\Helper\ProgressBar;
@@ -393,12 +394,16 @@ public function newLine($count = 1)
     }
 
     /**
+     * Sets the input stream used by the SymfonyQuestionHelper.
+     *
      * @param resource $stream
+     *
+     * @throws InvalidArgumentException If the given stream is not a resource
      */
     public function setInputStream($stream)
     {
         if (!is_resource($stream)) {
-            throw new \InvalidArgumentException(sprintf('The stream must be a valid resource, %s given'), gettype($stream));
+            throw new InvalidArgumentException(sprintf('Input stream must be a valid resource, %s given', gettype($stream)));
         }
 
         $this->inputStream = $stream;
 
@@ -80,15 +80,29 @@ public function testSetInputStream()
         rewind($stream);
 
         $command->setCode(function ($input, $output) use ($command, $stream) {
-            $io = new SymfonyStyle($input, $output);
+            $sfStyle = new SymfonyStyle($input, $output);
 
-            $io->setInputStream($stream);
-            $io->ask('What\'s your name?');
+            $sfStyle->setInputStream($stream);
+            $sfStyle->ask('What\'s your name?');
         });
 
         $this->tester->execute(array());
         $this->assertSame(0, $this->tester->getStatusCode());
     }
+
+    /**
+     * @expectedException \Symfony\Component\Console\Exception\InvalidArgumentException
+     * @expectedMessage   Input stream must be a valid resource, string given
+     */
+    public function testSetInputStreamWithWrongResource()
+    {
+        $this->command->setCode(function ($input, $output) {
+            $sfStyle = new SymfonyStyle($input, $output);
+            $sfStyle->setInputStream('invalid type');
+        });
+
+        $this->tester->execute(array());
+    }
 }
 
 /**