diff --git a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
index 1feabd1a45..147be98b90 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
@@ -187,7 +187,7 @@ class EntityTypeTest extends BaseTypeTest
     public function testConfigureQueryBuilderWithNonQueryBuilderAndNonClosure()
     {
         $this->expectException('Symfony\Component\OptionsResolver\Exception\InvalidOptionsException');
-        $field = $this->factory->createNamed('name', static::TESTED_TYPE, null, [
+        $this->factory->createNamed('name', static::TESTED_TYPE, null, [
             'em' => 'default',
             'class' => self::SINGLE_IDENT_CLASS,
             'query_builder' => new \stdClass(),
diff --git a/src/Symfony/Bridge/Twig/Node/SearchAndRenderBlockNode.php b/src/Symfony/Bridge/Twig/Node/SearchAndRenderBlockNode.php
index 612bec14e5..8925d58877 100644
--- a/src/Symfony/Bridge/Twig/Node/SearchAndRenderBlockNode.php
+++ b/src/Symfony/Bridge/Twig/Node/SearchAndRenderBlockNode.php
@@ -28,7 +28,6 @@ class SearchAndRenderBlockNode extends FunctionExpression
 
         preg_match('/_([^_]+)$/', $this->getAttribute('name'), $matches);
 
-        $label = null;
         $arguments = iterator_to_array($this->getNode('arguments'));
         $blockNameSuffix = $matches[1];
 
diff --git a/src/Symfony/Bridge/Twig/Tests/AppVariableTest.php b/src/Symfony/Bridge/Twig/Tests/AppVariableTest.php
index 4a3f04fdde..eb132e7202 100644
--- a/src/Symfony/Bridge/Twig/Tests/AppVariableTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/AppVariableTest.php
@@ -180,10 +180,10 @@ class AppVariableTest extends TestCase
         $flashMessages = $this->setFlashMessages();
         $this->assertEquals($flashMessages, $this->appVariable->getFlashes([]));
 
-        $flashMessages = $this->setFlashMessages();
+        $this->setFlashMessages();
         $this->assertEquals([], $this->appVariable->getFlashes('this-does-not-exist'));
 
-        $flashMessages = $this->setFlashMessages();
+        $this->setFlashMessages();
         $this->assertEquals(
             ['this-does-not-exist' => []],
             $this->appVariable->getFlashes(['this-does-not-exist'])
diff --git a/src/Symfony/Bridge/Twig/Tests/Command/LintCommandTest.php b/src/Symfony/Bridge/Twig/Tests/Command/LintCommandTest.php
index db10ccb6c0..84154512be 100644
--- a/src/Symfony/Bridge/Twig/Tests/Command/LintCommandTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Command/LintCommandTest.php
@@ -52,7 +52,7 @@ class LintCommandTest extends TestCase
         $filename = $this->createFile('');
         unlink($filename);
 
-        $ret = $tester->execute(['filename' => [$filename]], ['decorated' => false]);
+        $tester->execute(['filename' => [$filename]], ['decorated' => false]);
     }
 
     public function testLintFileCompileTimeException()
diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/StopwatchExtensionTest.php b/src/Symfony/Bridge/Twig/Tests/Extension/StopwatchExtensionTest.php
index 2b38122e56..35f3baa1b9 100644
--- a/src/Symfony/Bridge/Twig/Tests/Extension/StopwatchExtensionTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Extension/StopwatchExtensionTest.php
@@ -34,7 +34,7 @@ class StopwatchExtensionTest extends TestCase
         $twig->addExtension(new StopwatchExtension($this->getStopwatch($events)));
 
         try {
-            $nodes = $twig->render('template');
+            $twig->render('template');
         } catch (RuntimeError $e) {
             throw $e->getPrevious();
         }
diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php b/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
index aeb109fd25..206cda6783 100644
--- a/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
@@ -49,21 +49,21 @@ class TranslationExtensionTest extends TestCase
     {
         $this->expectException('Twig\Error\SyntaxError');
         $this->expectExceptionMessage('Unexpected token. Twig was looking for the "with", "from", or "into" keyword in "index" at line 3.');
-        $output = $this->getTemplate("{% trans \n\nfoo %}{% endtrans %}")->render();
+        $this->getTemplate("{% trans \n\nfoo %}{% endtrans %}")->render();
     }
 
     public function testTransComplexBody()
     {
         $this->expectException('Twig\Error\SyntaxError');
         $this->expectExceptionMessage('A message inside a trans tag must be a simple text in "index" at line 2.');
-        $output = $this->getTemplate("{% trans %}\n{{ 1 + 2 }}{% endtrans %}")->render();
+        $this->getTemplate("{% trans %}\n{{ 1 + 2 }}{% endtrans %}")->render();
     }
 
     public function testTransChoiceComplexBody()
     {
         $this->expectException('Twig\Error\SyntaxError');
         $this->expectExceptionMessage('A message inside a transchoice tag must be a simple text in "index" at line 2.');
-        $output = $this->getTemplate("{% transchoice count %}\n{{ 1 + 2 }}{% endtranschoice %}")->render();
+        $this->getTemplate("{% transchoice count %}\n{{ 1 + 2 }}{% endtranschoice %}")->render();
     }
 
     public function getTransTests()
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
index 43a811b92d..f17a1bba21 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
@@ -425,7 +425,6 @@ class TextDescriptor extends Descriptor
         $tableHeaders = ['Order', 'Callable', 'Priority'];
         $tableRows = [];
 
-        $order = 1;
         foreach ($eventListeners as $order => $listener) {
             $tableRows[] = [sprintf('#%d', $order + 1), $this->formatCallable($listener), $eventDispatcher->getListenerPriority($event, $listener)];
         }
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
index a190dba908..3e28e52ad3 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -1043,8 +1043,6 @@ class FrameworkExtension extends Extension
         $container->getDefinition('assets.url_package')->setPrivate(true);
         $container->getDefinition('assets.static_version_strategy')->setPrivate(true);
 
-        $defaultVersion = null;
-
         if ($config['version_strategy']) {
             $defaultVersion = new Reference($config['version_strategy']);
         } else {
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
index 169dba0e29..c039345653 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php
@@ -277,8 +277,7 @@ abstract class ControllerTraitTest extends TestCase
         $this->expectException('Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException');
         $controller = $this->createController();
 
-        /* @var BinaryFileResponse $response */
-        $response = $controller->file('some-file.txt', 'test.php');
+        $controller->file('some-file.txt', 'test.php');
     }
 
     public function testIsGranted()
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/AddConstraintValidatorsPassTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/AddConstraintValidatorsPassTest.php
index 81a8512858..1d998395e2 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/AddConstraintValidatorsPassTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/AddConstraintValidatorsPassTest.php
@@ -51,7 +51,7 @@ class AddConstraintValidatorsPassTest extends TestCase
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessage('The service "my_abstract_constraint_validator" tagged "validator.constraint_validator" must not be abstract.');
         $container = new ContainerBuilder();
-        $validatorFactory = $container->register('validator.validator_factory')
+        $container->register('validator.validator_factory')
             ->addArgument([]);
 
         $container->register('my_abstract_constraint_validator')
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
index 431cc0c084..556fd9afd4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
@@ -251,7 +251,7 @@ abstract class FrameworkExtensionTest extends TestCase
      */
     public function testDeprecatedWorkflowMissingType()
     {
-        $container = $this->createContainerFromFile('workflows_without_type');
+        $this->createContainerFromFile('workflows_without_type');
     }
 
     public function testWorkflowCannotHaveBothTypeAndService()
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/Bundle/TestBundle/DependencyInjection/TestExtension.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/Bundle/TestBundle/DependencyInjection/TestExtension.php
index 59670fdd19..0ae7669ce8 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/Bundle/TestBundle/DependencyInjection/TestExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/Bundle/TestBundle/DependencyInjection/TestExtension.php
@@ -26,7 +26,7 @@ class TestExtension extends Extension implements PrependExtensionInterface
     public function load(array $configs, ContainerBuilder $container)
     {
         $configuration = $this->getConfiguration($configs, $container);
-        $config = $this->processConfiguration($configuration, $configs);
+        $this->processConfiguration($configuration, $configs);
 
         $container->setAlias('test.annotation_reader', new Alias('annotation_reader', true));
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
index c99b5e073e..3a87f7e4e6 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/SessionTest.php
@@ -59,7 +59,7 @@ class SessionTest extends AbstractWebTestCase
         }
 
         // set flash
-        $crawler = $client->request('GET', '/session_setflash/Hello%20world.');
+        $client->request('GET', '/session_setflash/Hello%20world.');
 
         // check flash displays on redirect
         $this->assertStringContainsString('Hello world.', $client->followRedirect()->text());
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
index c9396624f0..e38e11601b 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
@@ -162,7 +162,7 @@ class TranslatorTest extends TestCase
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessage('Missing third $defaultLocale argument.');
         $container = $this->getMockBuilder(ContainerInterface::class)->getMock();
-        $translator = new Translator($container, new MessageFormatter());
+        new Translator($container, new MessageFormatter());
     }
 
     /**
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 9eb9a08177..01e03b0312 100644
--- a/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php
+++ b/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/AbstractFactoryTest.php
@@ -61,7 +61,7 @@ class AbstractFactoryTest extends TestCase
             $options['failure_handler'] = $serviceId;
         }
 
-        list($container, $authProviderId, $listenerId, $entryPointId) = $this->callFactory('foo', $options, 'user_provider', 'entry_point');
+        list($container) = $this->callFactory('foo', $options, 'user_provider', 'entry_point');
 
         $definition = $container->getDefinition('abstract_listener.foo');
         $arguments = $definition->getArguments();
@@ -99,7 +99,7 @@ class AbstractFactoryTest extends TestCase
             $options['success_handler'] = $serviceId;
         }
 
-        list($container, $authProviderId, $listenerId, $entryPointId) = $this->callFactory('foo', $options, 'user_provider', 'entry_point');
+        list($container) = $this->callFactory('foo', $options, 'user_provider', 'entry_point');
 
         $definition = $container->getDefinition('abstract_listener.foo');
         $arguments = $definition->getArguments();
diff --git a/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/GuardAuthenticationFactoryTest.php b/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/GuardAuthenticationFactoryTest.php
index f327eece8f..fd812c13ae 100644
--- a/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/GuardAuthenticationFactoryTest.php
+++ b/src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Security/Factory/GuardAuthenticationFactoryTest.php
@@ -159,7 +159,7 @@ class GuardAuthenticationFactoryTest extends TestCase
             'authenticators' => ['authenticator123', 'authenticatorABC'],
             'entry_point' => 'authenticatorABC',
         ];
-        list($container, $entryPointId) = $this->executeCreate($config, null);
+        list(, $entryPointId) = $this->executeCreate($config, null);
         $this->assertEquals('authenticatorABC', $entryPointId);
     }
 
@@ -172,7 +172,7 @@ class GuardAuthenticationFactoryTest extends TestCase
         $userProviderId = 'my_user_provider';
 
         $factory = new GuardAuthenticationFactory();
-        list($providerId, $listenerId, $entryPointId) = $factory->create($container, $id, $config, $userProviderId, $defaultEntryPointId);
+        list(, , $entryPointId) = $factory->create($container, $id, $config, $userProviderId, $defaultEntryPointId);
 
         return [$container, $entryPointId];
     }
diff --git a/src/Symfony/Component/BrowserKit/Tests/CookieTest.php b/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
index 1404da9a1c..84c4a0c2e0 100644
--- a/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
+++ b/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
@@ -198,6 +198,6 @@ class CookieTest extends TestCase
     {
         $this->expectException('UnexpectedValueException');
         $this->expectExceptionMessage('The cookie expiration time "string" is not valid.');
-        $cookie = new Cookie('foo', 'bar', 'string');
+        new Cookie('foo', 'bar', 'string');
     }
 }
diff --git a/src/Symfony/Component/Cache/Tests/Adapter/MaxIdLengthAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/MaxIdLengthAdapterTest.php
index 909191960f..536e2c2d4d 100644
--- a/src/Symfony/Component/Cache/Tests/Adapter/MaxIdLengthAdapterTest.php
+++ b/src/Symfony/Component/Cache/Tests/Adapter/MaxIdLengthAdapterTest.php
@@ -70,7 +70,7 @@ class MaxIdLengthAdapterTest extends TestCase
     {
         $this->expectException('Symfony\Component\Cache\Exception\InvalidArgumentException');
         $this->expectExceptionMessage('Namespace must be 26 chars max, 40 given ("----------------------------------------")');
-        $cache = $this->getMockBuilder(MaxIdLengthAdapter::class)
+        $this->getMockBuilder(MaxIdLengthAdapter::class)
             ->setConstructorArgs([str_repeat('-', 40)])
             ->getMock();
     }
diff --git a/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php b/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
index 438af9f286..38ae6ff7b8 100644
--- a/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
+++ b/src/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
@@ -19,7 +19,7 @@ class DelegatingLoaderTest extends TestCase
 {
     public function testConstructor()
     {
-        $loader = new DelegatingLoader($resolver = new LoaderResolver());
+        new DelegatingLoader($resolver = new LoaderResolver());
         $this->assertTrue(true, '__construct() takes a loader resolver as its first argument');
     }
 
diff --git a/src/Symfony/Component/Config/Tests/Resource/ClassExistenceResourceTest.php b/src/Symfony/Component/Config/Tests/Resource/ClassExistenceResourceTest.php
index 6b38e33baf..ad331240de 100644
--- a/src/Symfony/Component/Config/Tests/Resource/ClassExistenceResourceTest.php
+++ b/src/Symfony/Component/Config/Tests/Resource/ClassExistenceResourceTest.php
@@ -67,7 +67,7 @@ EOF
 
             $loadedClass = 123;
 
-            $res = new ClassExistenceResource('MissingFooClass', false);
+            new ClassExistenceResource('MissingFooClass', false);
 
             $this->assertSame(123, $loadedClass);
         } finally {
diff --git a/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php b/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
index 69f781c2e9..40b1790101 100644
--- a/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
+++ b/src/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
@@ -67,7 +67,7 @@ class DirectoryResourceTest extends TestCase
     {
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessageRegExp('/The directory ".*" does not exist./');
-        $resource = new DirectoryResource('/____foo/foobar'.mt_rand(1, 999999));
+        new DirectoryResource('/____foo/foobar'.mt_rand(1, 999999));
     }
 
     public function testIsFresh()
@@ -165,7 +165,7 @@ class DirectoryResourceTest extends TestCase
     {
         $resource = new DirectoryResource($this->directory, '/\.(foo|xml)$/');
 
-        $unserialized = unserialize(serialize($resource));
+        unserialize(serialize($resource));
 
         $this->assertSame(realpath($this->directory), $resource->getResource());
         $this->assertSame('/\.(foo|xml)$/', $resource->getPattern());
diff --git a/src/Symfony/Component/Config/Tests/Resource/FileResourceTest.php b/src/Symfony/Component/Config/Tests/Resource/FileResourceTest.php
index bf9e6f3155..968c7e9266 100644
--- a/src/Symfony/Component/Config/Tests/Resource/FileResourceTest.php
+++ b/src/Symfony/Component/Config/Tests/Resource/FileResourceTest.php
@@ -57,7 +57,7 @@ class FileResourceTest extends TestCase
     {
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessageRegExp('/The file ".*" does not exist./');
-        $resource = new FileResource('/____foo/foobar'.mt_rand(1, 999999));
+        new FileResource('/____foo/foobar'.mt_rand(1, 999999));
     }
 
     public function testIsFresh()
@@ -76,7 +76,7 @@ class FileResourceTest extends TestCase
 
     public function testSerializeUnserialize()
     {
-        $unserialized = unserialize(serialize($this->resource));
+        unserialize(serialize($this->resource));
 
         $this->assertSame(realpath($this->file), $this->resource->getResource());
     }
diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index d61418f37b..1ef2ed3d78 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -521,7 +521,7 @@ class ApplicationTest extends TestCase
 
         // Subnamespace + plural
         try {
-            $a = $application->find('foo3:');
+            $application->find('foo3:');
             $this->fail('->find() should throw an Symfony\Component\Console\Exception\CommandNotFoundException if a command is ambiguous because of a subnamespace, with alternatives');
         } catch (\Exception $e) {
             $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e);
diff --git a/src/Symfony/Component/Console/Tests/Helper/ProgressIndicatorTest.php b/src/Symfony/Component/Console/Tests/Helper/ProgressIndicatorTest.php
index 6d803fc251..1428cf5e97 100644
--- a/src/Symfony/Component/Console/Tests/Helper/ProgressIndicatorTest.php
+++ b/src/Symfony/Component/Console/Tests/Helper/ProgressIndicatorTest.php
@@ -104,7 +104,7 @@ class ProgressIndicatorTest extends TestCase
     {
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessage('Must have at least 2 indicator value characters.');
-        $bar = new ProgressIndicator($this->getOutputStream(), null, 100, ['1']);
+        new ProgressIndicator($this->getOutputStream(), null, 100, ['1']);
     }
 
     public function testCannotStartAlreadyStartedIndicator()
diff --git a/src/Symfony/Component/Debug/DebugClassLoader.php b/src/Symfony/Component/Debug/DebugClassLoader.php
index a3b7ac6323..b0174187af 100644
--- a/src/Symfony/Component/Debug/DebugClassLoader.php
+++ b/src/Symfony/Component/Debug/DebugClassLoader.php
@@ -404,7 +404,7 @@ class DebugClassLoader
         }
 
         if (isset($dirFiles[$file])) {
-            return $real .= $dirFiles[$file];
+            return $real.$dirFiles[$file];
         }
 
         $kFile = strtolower($file);
@@ -423,7 +423,7 @@ class DebugClassLoader
             self::$darwinCache[$kDir][1] = $dirFiles;
         }
 
-        return $real .= $dirFiles[$kFile];
+        return $real.$dirFiles[$kFile];
     }
 
     /**
diff --git a/src/Symfony/Component/Debug/Tests/Exception/FlattenExceptionTest.php b/src/Symfony/Component/Debug/Tests/Exception/FlattenExceptionTest.php
index bcb86b4e3f..0290b05bad 100644
--- a/src/Symfony/Component/Debug/Tests/Exception/FlattenExceptionTest.php
+++ b/src/Symfony/Component/Debug/Tests/Exception/FlattenExceptionTest.php
@@ -256,7 +256,7 @@ class FlattenExceptionTest extends TestCase
 
         // assertEquals() does not like NAN values.
         $this->assertEquals($array[$i][0], 'float');
-        $this->assertNan($array[$i++][1]);
+        $this->assertNan($array[$i][1]);
     }
 
     public function testRecursionInArguments()
diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index b6d0b03b2b..7596b9953b 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -219,7 +219,7 @@ EOF;
                 foreach ($ids as $id) {
                     $c .= '    '.$this->doExport($id)." => true,\n";
                 }
-                $files['removed-ids.php'] = $c .= "];\n";
+                $files['removed-ids.php'] = $c."];\n";
             }
 
             foreach ($this->generateServiceFiles() as $file => $c) {
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/AnalyzeServiceReferencesPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/AnalyzeServiceReferencesPassTest.php
index 0bd94a3e60..66b6e19cc3 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/AnalyzeServiceReferencesPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/AnalyzeServiceReferencesPassTest.php
@@ -25,28 +25,28 @@ class AnalyzeServiceReferencesPassTest extends TestCase
     {
         $container = new ContainerBuilder();
 
-        $a = $container
+        $container
             ->register('a')
             ->addArgument($ref1 = new Reference('b'))
         ;
 
-        $b = $container
+        $container
             ->register('b')
             ->addMethodCall('setA', [$ref2 = new Reference('a')])
         ;
 
-        $c = $container
+        $container
             ->register('c')
             ->addArgument($ref3 = new Reference('a'))
             ->addArgument($ref4 = new Reference('b'))
         ;
 
-        $d = $container
+        $container
             ->register('d')
             ->setProperty('foo', $ref5 = new Reference('b'))
         ;
 
-        $e = $container
+        $container
             ->register('e')
             ->setConfigurator([$ref6 = new Reference('b'), 'methodName'])
         ;
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/IntegrationTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/IntegrationTest.php
index 10c34aa489..348d1d7f53 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/IntegrationTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/IntegrationTest.php
@@ -43,7 +43,7 @@ class IntegrationTest extends TestCase
             ->addArgument(new Reference('c'))
         ;
 
-        $b = $container
+        $container
             ->register('b', '\stdClass')
             ->addArgument(new Reference('c'))
             ->setPublic(false)
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveChildDefinitionsPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveChildDefinitionsPassTest.php
index 27bb9157c8..eee4cf730c 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveChildDefinitionsPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveChildDefinitionsPassTest.php
@@ -390,7 +390,7 @@ class ResolveChildDefinitionsPassTest extends TestCase
             ->setBindings(['a' => '1', 'b' => '2'])
         ;
 
-        $child = $container->setDefinition('child', new ChildDefinition('parent'))
+        $container->setDefinition('child', new ChildDefinition('parent'))
             ->setBindings(['b' => 'B', 'c' => 'C'])
         ;
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveClassPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveClassPassTest.php
index 0ab6303164..81e05fb284 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveClassPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveClassPassTest.php
@@ -87,8 +87,8 @@ class ResolveClassPassTest extends TestCase
         $this->expectException('Symfony\Component\DependencyInjection\Exception\InvalidArgumentException');
         $this->expectExceptionMessage('Service definition "App\Foo\Child" has a parent but no class, and its name looks like a FQCN. Either the class is missing or you want to inherit it from the parent service. To resolve this ambiguity, please rename this service to a non-FQCN (e.g. using dots), or create the missing class.');
         $container = new ContainerBuilder();
-        $parent = $container->register('App\Foo', null);
-        $child = $container->setDefinition('App\Foo\Child', new ChildDefinition('App\Foo'));
+        $container->register('App\Foo', null);
+        $container->setDefinition('App\Foo\Child', new ChildDefinition('App\Foo'));
 
         (new ResolveClassPass())->process($container);
     }
diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
index 199179c9b4..f2666ef962 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
@@ -1265,7 +1265,7 @@ class ContainerBuilderTest extends TestCase
         $this->expectExceptionMessage('The definition for "DateTime" has no class attribute, and appears to reference a class or interface in the global namespace.');
         $container = new ContainerBuilder();
 
-        $definition = $container->register(\DateTime::class);
+        $container->register(\DateTime::class);
         $container->compile();
     }
 
@@ -1295,7 +1295,7 @@ class ContainerBuilderTest extends TestCase
         $this->expectExceptionMessage('The definition for "123_abc" has no class.');
         $container = new ContainerBuilder();
 
-        $definition = $container->register('123_abc');
+        $container->register('123_abc');
         $container->compile();
     }
 
@@ -1305,7 +1305,7 @@ class ContainerBuilderTest extends TestCase
         $this->expectExceptionMessage('The definition for "\foo" has no class.');
         $container = new ContainerBuilder();
 
-        $definition = $container->register('\\foo');
+        $container->register('\\foo');
         $container->compile();
     }
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
index 4e6083d998..b2cbb3caf6 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
@@ -886,7 +886,7 @@ class PhpDumperTest extends TestCase
             ->setPublic(true)
             ->addArgument($baz);
 
-        $passConfig = $container->getCompiler()->getPassConfig();
+        $container->getCompiler()->getPassConfig();
         $container->compile();
 
         $dumper = new PhpDumper($container);
@@ -978,7 +978,6 @@ class PhpDumperTest extends TestCase
         $container->compile();
 
         $dumper = new PhpDumper($container);
-        $dump = $dumper->dump();
         $this->assertStringEqualsFile(self::$fixturesPath.'/php/services_adawson.php', $dumper->dump());
     }
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php b/src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php
index 1b6e51c567..2b963968d8 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php
@@ -808,7 +808,6 @@ class XmlFileLoaderTest extends TestCase
         $container->compile();
 
         $dumper = new PhpDumper($container);
-        $dump = $dumper->dump();
         $this->assertStringEqualsFile(self::$fixturesPath.'/php/services_tsantos.php', $dumper->dump());
     }
 
diff --git a/src/Symfony/Component/DomCrawler/Tests/Field/ChoiceFormFieldTest.php b/src/Symfony/Component/DomCrawler/Tests/Field/ChoiceFormFieldTest.php
index 61e776736a..176ea5927f 100644
--- a/src/Symfony/Component/DomCrawler/Tests/Field/ChoiceFormFieldTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/Field/ChoiceFormFieldTest.php
@@ -19,7 +19,7 @@ class ChoiceFormFieldTest extends FormFieldTestCase
     {
         $node = $this->createNode('textarea', '');
         try {
-            $field = new ChoiceFormField($node);
+            new ChoiceFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is not an input or a select');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not an input or a select');
@@ -27,7 +27,7 @@ class ChoiceFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('input', '', ['type' => 'text']);
         try {
-            $field = new ChoiceFormField($node);
+            new ChoiceFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is an input with a type different from checkbox or radio');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is an input with a type different from checkbox or radio');
diff --git a/src/Symfony/Component/DomCrawler/Tests/Field/FileFormFieldTest.php b/src/Symfony/Component/DomCrawler/Tests/Field/FileFormFieldTest.php
index 9b359d6978..b14bcc855e 100644
--- a/src/Symfony/Component/DomCrawler/Tests/Field/FileFormFieldTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/Field/FileFormFieldTest.php
@@ -24,7 +24,7 @@ class FileFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('textarea', '');
         try {
-            $field = new FileFormField($node);
+            new FileFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is not an input field');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not an input field');
@@ -32,7 +32,7 @@ class FileFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('input', '', ['type' => 'text']);
         try {
-            $field = new FileFormField($node);
+            new FileFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is not a file input field');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not a file input field');
diff --git a/src/Symfony/Component/DomCrawler/Tests/Field/InputFormFieldTest.php b/src/Symfony/Component/DomCrawler/Tests/Field/InputFormFieldTest.php
index 5758f1b7bb..a1f327bbc2 100644
--- a/src/Symfony/Component/DomCrawler/Tests/Field/InputFormFieldTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/Field/InputFormFieldTest.php
@@ -24,7 +24,7 @@ class InputFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('textarea', '');
         try {
-            $field = new InputFormField($node);
+            new InputFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is not an input');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not an input');
@@ -32,7 +32,7 @@ class InputFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('input', '', ['type' => 'checkbox']);
         try {
-            $field = new InputFormField($node);
+            new InputFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is a checkbox');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is a checkbox');
@@ -40,7 +40,7 @@ class InputFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('input', '', ['type' => 'file']);
         try {
-            $field = new InputFormField($node);
+            new InputFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is a file');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is a file');
diff --git a/src/Symfony/Component/DomCrawler/Tests/Field/TextareaFormFieldTest.php b/src/Symfony/Component/DomCrawler/Tests/Field/TextareaFormFieldTest.php
index 5d4d003826..192984ce29 100644
--- a/src/Symfony/Component/DomCrawler/Tests/Field/TextareaFormFieldTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/Field/TextareaFormFieldTest.php
@@ -24,7 +24,7 @@ class TextareaFormFieldTest extends FormFieldTestCase
 
         $node = $this->createNode('input', '');
         try {
-            $field = new TextareaFormField($node);
+            new TextareaFormField($node);
             $this->fail('->initialize() throws a \LogicException if the node is not a textarea');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not a textarea');
diff --git a/src/Symfony/Component/DomCrawler/Tests/FormTest.php b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
index 504a9bd425..45d964b08c 100644
--- a/src/Symfony/Component/DomCrawler/Tests/FormTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
@@ -39,14 +39,14 @@ class FormTest extends TestCase
         $nodes = $dom->getElementsByTagName('input');
 
         try {
-            $form = new Form($nodes->item(0), 'http://example.com');
+            new Form($nodes->item(0), 'http://example.com');
             $this->fail('__construct() throws a \\LogicException if the node has no form ancestor');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '__construct() throws a \\LogicException if the node has no form ancestor');
         }
 
         try {
-            $form = new Form($nodes->item(1), 'http://example.com');
+            new Form($nodes->item(1), 'http://example.com');
             $this->fail('__construct() throws a \\LogicException if the input type is not submit, button, or image');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '__construct() throws a \\LogicException if the input type is not submit, button, or image');
@@ -55,7 +55,7 @@ class FormTest extends TestCase
         $nodes = $dom->getElementsByTagName('button');
 
         try {
-            $form = new Form($nodes->item(0), 'http://example.com');
+            new Form($nodes->item(0), 'http://example.com');
             $this->fail('__construct() throws a \\LogicException if the node has no form ancestor');
         } catch (\LogicException $e) {
             $this->assertTrue(true, '__construct() throws a \\LogicException if the node has no form ancestor');
@@ -63,11 +63,19 @@ class FormTest extends TestCase
     }
 
     /**
-     * __construct() should throw \\LogicException if the form attribute is invalid.
+     * @dataProvider constructorThrowsExceptionIfNoRelatedFormProvider
+     *
+     * __construct() should throw a \LogicException if the form attribute is invalid.
      */
-    public function testConstructorThrowsExceptionIfNoRelatedForm()
+    public function testConstructorThrowsExceptionIfNoRelatedForm(\DOMElement $node)
     {
         $this->expectException('LogicException');
+
+        new Form($node, 'http://example.com');
+    }
+
+    public function constructorThrowsExceptionIfNoRelatedFormProvider()
+    {
         $dom = new \DOMDocument();
         $dom->loadHTML('
             <html>
@@ -81,8 +89,10 @@ class FormTest extends TestCase
 
         $nodes = $dom->getElementsByTagName('input');
 
-        $form = new Form($nodes->item(0), 'http://example.com');
-        $form = new Form($nodes->item(1), 'http://example.com');
+        return [
+            [$nodes->item(0)],
+            [$nodes->item(1)],
+        ];
     }
 
     public function testConstructorLoadsOnlyFieldsOfTheRightForm()
diff --git a/src/Symfony/Component/EventDispatcher/Tests/DependencyInjection/RegisterListenersPassTest.php b/src/Symfony/Component/EventDispatcher/Tests/DependencyInjection/RegisterListenersPassTest.php
index 34e28bcbb2..61c047af39 100644
--- a/src/Symfony/Component/EventDispatcher/Tests/DependencyInjection/RegisterListenersPassTest.php
+++ b/src/Symfony/Component/EventDispatcher/Tests/DependencyInjection/RegisterListenersPassTest.php
@@ -37,10 +37,6 @@ class RegisterListenersPassTest extends TestCase
 
     public function testValidEventSubscriber()
     {
-        $services = [
-            'my_event_subscriber' => [0 => []],
-        ];
-
         $builder = new ContainerBuilder();
         $eventDispatcherDefinition = $builder->register('event_dispatcher');
         $builder->register('my_event_subscriber', 'Symfony\Component\EventDispatcher\Tests\DependencyInjection\SubscriberService')
diff --git a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
index 22d1d1649d..f69ee57982 100644
--- a/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
+++ b/src/Symfony/Component/ExpressionLanguage/Tests/ExpressionLanguageTest.php
@@ -98,7 +98,7 @@ class ExpressionLanguageTest extends TestCase
         $this->expectException('InvalidArgumentException');
         $this->expectExceptionMessage('Cache argument has to implement Psr\Cache\CacheItemPoolInterface.');
         $cacheMock = $this->getMockBuilder('Psr\Cache\CacheItemSpoolInterface')->getMock();
-        $expressionLanguage = new ExpressionLanguage($cacheMock);
+        new ExpressionLanguage($cacheMock);
     }
 
     public function testConstantFunction()
@@ -196,7 +196,7 @@ class ExpressionLanguageTest extends TestCase
         $cacheMock = $this->getMockBuilder('Psr\Cache\CacheItemPoolInterface')->getMock();
         $cacheItemMock = $this->getMockBuilder('Psr\Cache\CacheItemInterface')->getMock();
         $expressionLanguage = new ExpressionLanguage($cacheMock);
-        $savedParsedExpressions = [];
+        $savedParsedExpression = null;
 
         $cacheMock
             ->expects($this->exactly(2))
diff --git a/src/Symfony/Component/ExpressionLanguage/Tests/ParserCache/ParserCacheAdapterTest.php b/src/Symfony/Component/ExpressionLanguage/Tests/ParserCache/ParserCacheAdapterTest.php
index 28e9ef5725..2e9263307f 100644
--- a/src/Symfony/Component/ExpressionLanguage/Tests/ParserCache/ParserCacheAdapterTest.php
+++ b/src/Symfony/Component/ExpressionLanguage/Tests/ParserCache/ParserCacheAdapterTest.php
@@ -68,7 +68,7 @@ class ParserCacheAdapterTest extends TestCase
             ->willReturn($value)
         ;
 
-        $cacheItem = $parserCacheAdapter->save($cacheItemMock);
+        $parserCacheAdapter->save($cacheItemMock);
     }
 
     public function testGetItems()
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformerTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformerTest.php
index d4602b88fd..ce91d05ff4 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformerTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformerTest.php
@@ -181,10 +181,10 @@ class DateTimeToLocalizedStringTransformerTest extends TestCase
 
     public function testTransformWrapsIntlErrors()
     {
-        $transformer = new DateTimeToLocalizedStringTransformer();
-
         $this->markTestIncomplete('Checking for intl errors needs to be reimplemented');
 
+        $transformer = new DateTimeToLocalizedStringTransformer();
+
         // HOW TO REPRODUCE?
 
         //$this->expectException('Symfony\Component\Form\Extension\Core\DataTransformer\TransformationFailedException');
diff --git a/src/Symfony/Component/HttpFoundation/Tests/File/UploadedFileTest.php b/src/Symfony/Component/HttpFoundation/Tests/File/UploadedFileTest.php
index 4186c72a62..2ea924bac2 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/File/UploadedFileTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/File/UploadedFileTest.php
@@ -153,7 +153,7 @@ class UploadedFileTest extends TestCase
             UPLOAD_ERR_OK
         );
 
-        $movedFile = $file->move(__DIR__.'/Fixtures/directory');
+        $file->move(__DIR__.'/Fixtures/directory');
     }
 
     public function testMoveLocalFileIsAllowedInTestMode()
diff --git a/src/Symfony/Component/HttpFoundation/Tests/HeaderBagTest.php b/src/Symfony/Component/HttpFoundation/Tests/HeaderBagTest.php
index dcc266f69c..cabe038bdf 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/HeaderBagTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/HeaderBagTest.php
@@ -59,7 +59,7 @@ class HeaderBagTest extends TestCase
     {
         $this->expectException('RuntimeException');
         $bag = new HeaderBag(['foo' => 'Tue']);
-        $headerDate = $bag->getDate('foo');
+        $bag->getDate('foo');
     }
 
     public function testGetCacheControlHeader()
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
index 92f4876da4..e1ff3bf2bd 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
@@ -29,13 +29,13 @@ class RedirectResponseTest extends TestCase
     public function testRedirectResponseConstructorNullUrl()
     {
         $this->expectException('InvalidArgumentException');
-        $response = new RedirectResponse(null);
+        new RedirectResponse(null);
     }
 
     public function testRedirectResponseConstructorWrongStatusCode()
     {
         $this->expectException('InvalidArgumentException');
-        $response = new RedirectResponse('foo.bar', 404);
+        new RedirectResponse('foo.bar', 404);
     }
 
     public function testGenerateLocationHeader()
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NativeFileSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NativeFileSessionHandlerTest.php
index 9daf1a0eee..7de55798a6 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NativeFileSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NativeFileSessionHandlerTest.php
@@ -41,7 +41,7 @@ class NativeFileSessionHandlerTest extends TestCase
      */
     public function testConstructSavePath($savePath, $expectedSavePath, $path)
     {
-        $handler = new NativeFileSessionHandler($savePath);
+        new NativeFileSessionHandler($savePath);
         $this->assertEquals($expectedSavePath, ini_get('session.save_path'));
         $this->assertDirectoryExists(realpath($path));
 
@@ -62,13 +62,13 @@ class NativeFileSessionHandlerTest extends TestCase
     public function testConstructException()
     {
         $this->expectException('InvalidArgumentException');
-        $handler = new NativeFileSessionHandler('something;invalid;with;too-many-args');
+        new NativeFileSessionHandler('something;invalid;with;too-many-args');
     }
 
     public function testConstructDefault()
     {
         $path = ini_get('session.save_path');
-        $storage = new NativeSessionStorage(['name' => 'TESTING'], new NativeFileSessionHandler());
+        new NativeSessionStorage(['name' => 'TESTING'], new NativeFileSessionHandler());
 
         $this->assertEquals($path, ini_get('session.save_path'));
     }
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NullSessionHandlerTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NullSessionHandlerTest.php
index 0d246e1aa5..f793db144c 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NullSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/NullSessionHandlerTest.php
@@ -28,7 +28,7 @@ class NullSessionHandlerTest extends TestCase
 {
     public function testSaveHandlers()
     {
-        $storage = $this->getStorage();
+        $this->getStorage();
         $this->assertEquals('user', ini_get('session.save_handler'));
     }
 
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 123b605d28..e710dca92c 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/PdoSessionHandlerTest.php
@@ -54,7 +54,7 @@ class PdoSessionHandlerTest extends TestCase
         $pdo = $this->getMemorySqlitePdo();
         $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_SILENT);
 
-        $storage = new PdoSessionHandler($pdo);
+        new PdoSessionHandler($pdo);
     }
 
     public function testInexistentTable()
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/NativeSessionStorageTest.php b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/NativeSessionStorageTest.php
index fa170d17d3..9ce8108dac 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/NativeSessionStorageTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/Session/Storage/NativeSessionStorageTest.php
@@ -145,7 +145,7 @@ class NativeSessionStorageTest extends TestCase
     {
         $this->iniSet('session.cache_limiter', 'nocache');
 
-        $storage = new NativeSessionStorage();
+        new NativeSessionStorage();
         $this->assertEquals('', ini_get('session.cache_limiter'));
     }
 
@@ -153,7 +153,7 @@ class NativeSessionStorageTest extends TestCase
     {
         $this->iniSet('session.cache_limiter', 'nocache');
 
-        $storage = new NativeSessionStorage(['cache_limiter' => 'public']);
+        new NativeSessionStorage(['cache_limiter' => 'public']);
         $this->assertEquals('public', ini_get('session.cache_limiter'));
     }
 
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
index 671865aa16..246c0c7f6f 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
@@ -49,7 +49,6 @@ class RequestDataCollector extends DataCollector implements EventSubscriberInter
             }
         }
 
-        $content = null;
         try {
             $content = $request->getContent();
         } catch (\LogicException $e) {
@@ -59,7 +58,6 @@ class RequestDataCollector extends DataCollector implements EventSubscriberInter
 
         $sessionMetadata = [];
         $sessionAttributes = [];
-        $session = null;
         $flashes = [];
         if ($request->hasSession()) {
             $session = $request->getSession();
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
index 25c071c335..3bdf0f5199 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/ResponseCacheStrategy.php
@@ -130,7 +130,6 @@ class ResponseCacheStrategy implements ResponseCacheStrategyInterface
         $response->headers->set('Cache-Control', implode(', ', array_keys($flags)));
 
         $maxAge = null;
-        $sMaxage = null;
 
         if (is_numeric($this->ageDirectives['max-age'])) {
             $maxAge = $this->ageDirectives['max-age'] + $this->age;
diff --git a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
index 32cfcb8604..ef4c8b2172 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
@@ -256,7 +256,7 @@ class RegisterControllerArgumentLocatorsPassTest extends TestCase
     public function testControllersAreMadePublic()
     {
         $container = new ContainerBuilder();
-        $resolver = $container->register('argument_resolver.service')->addArgument([]);
+        $container->register('argument_resolver.service')->addArgument([]);
 
         $container->register('foo', ArgumentWithoutTypeController::class)
             ->setPublic(false)
diff --git a/src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php b/src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php
index fc47ff2c88..77cb34cfa5 100644
--- a/src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php
@@ -52,7 +52,7 @@ class StoreTest extends TestCase
 
     public function testUnlockFileThatDoesExist()
     {
-        $cacheKey = $this->storeSimpleEntry();
+        $this->storeSimpleEntry();
         $this->store->lock($this->request);
 
         $this->assertTrue($this->store->unlock($this->request));
@@ -92,7 +92,7 @@ class StoreTest extends TestCase
     {
         $cacheKey = $this->storeSimpleEntry();
         $entries = $this->getStoreMetadata($cacheKey);
-        list($req, $res) = $entries[0];
+        list(, $res) = $entries[0];
 
         $this->assertEquals('en9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08', $res['x-content-digest'][0]);
     }
@@ -208,7 +208,7 @@ class StoreTest extends TestCase
     {
         $req1 = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Foo', 'HTTP_BAR' => 'Bar']);
         $res1 = new Response('test 1', 200, ['Vary' => 'Foo Bar']);
-        $key = $this->store->write($req1, $res1);
+        $this->store->write($req1, $res1);
         $this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 1')), $this->store->lookup($req1)->getContent());
 
         $req2 = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Bling', 'HTTP_BAR' => 'Bam']);
@@ -229,7 +229,7 @@ class StoreTest extends TestCase
         $req = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Foo', 'HTTP_BAR' => 'Bar']);
         $this->assertTrue($this->store->lock($req));
 
-        $path = $this->store->lock($req);
+        $this->store->lock($req);
         $this->assertTrue($this->store->isLocked($req));
 
         $this->store->unlock($req);
diff --git a/src/Symfony/Component/Process/Tests/ExecutableFinderTest.php b/src/Symfony/Component/Process/Tests/ExecutableFinderTest.php
index a437f2bb6f..2942695af3 100644
--- a/src/Symfony/Component/Process/Tests/ExecutableFinderTest.php
+++ b/src/Symfony/Component/Process/Tests/ExecutableFinderTest.php
@@ -132,9 +132,6 @@ class ExecutableFinderTest extends TestCase
         $this->assertSamePath(PHP_BINARY, $result);
     }
 
-    /**
-     * @requires PHP 5.4
-     */
     public function testFindBatchExecutableOnWindows()
     {
         if (ini_get('open_basedir')) {
diff --git a/src/Symfony/Component/Routing/Tests/Annotation/RouteTest.php b/src/Symfony/Component/Routing/Tests/Annotation/RouteTest.php
index 08eed456aa..b698be8f66 100644
--- a/src/Symfony/Component/Routing/Tests/Annotation/RouteTest.php
+++ b/src/Symfony/Component/Routing/Tests/Annotation/RouteTest.php
@@ -19,7 +19,7 @@ class RouteTest extends TestCase
     public function testInvalidRouteParameter()
     {
         $this->expectException('BadMethodCallException');
-        $route = new Route(['foo' => 'bar']);
+        new Route(['foo' => 'bar']);
     }
 
     /**
diff --git a/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php b/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php
index ee8f4b071a..c06fb43f68 100644
--- a/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php
+++ b/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php
@@ -6,7 +6,7 @@ trait FooTrait
 {
     public function doBar()
     {
-        $baz = self::class;
+        self::class;
         if (true) {
         }
     }
diff --git a/src/Symfony/Component/Routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php b/src/Symfony/Component/Routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php
index d3ddb9f3b1..4e725fa8bb 100644
--- a/src/Symfony/Component/Routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php
+++ b/src/Symfony/Component/Routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php
@@ -135,7 +135,7 @@ class PhpGeneratorDumperTest extends TestCase
         include $this->testTmpFilepath;
 
         $projectUrlGenerator = new \NonExistingRoutesUrlGenerator(new RequestContext());
-        $url = $projectUrlGenerator->generate('NonExisting', []);
+        $projectUrlGenerator->generate('NonExisting', []);
     }
 
     public function testDumpForRouteWithDefaults()
diff --git a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
index 8af8e2e14f..0b1175f605 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
@@ -35,9 +35,6 @@ class AnnotationFileLoaderTest extends AbstractAnnotationLoaderTest
         $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses/FooClass.php');
     }
 
-    /**
-     * @requires PHP 5.4
-     */
     public function testLoadTraitWithClassConstant()
     {
         $this->reader->expects($this->never())->method('getClassAnnotation');
diff --git a/src/Symfony/Component/Routing/Tests/RouteCompilerTest.php b/src/Symfony/Component/Routing/Tests/RouteCompilerTest.php
index a460c6651c..b398b2f35e 100644
--- a/src/Symfony/Component/Routing/Tests/RouteCompilerTest.php
+++ b/src/Symfony/Component/Routing/Tests/RouteCompilerTest.php
@@ -248,7 +248,7 @@ class RouteCompilerTest extends TestCase
         $this->expectException('LogicException');
         $route = new Route('/{name}/{name}');
 
-        $compiled = $route->compile();
+        $route->compile();
     }
 
     public function testRouteCharsetMismatch()
@@ -256,7 +256,7 @@ class RouteCompilerTest extends TestCase
         $this->expectException('LogicException');
         $route = new Route("/\xE9/{bar}", [], ['bar' => '.'], ['utf8' => true]);
 
-        $compiled = $route->compile();
+        $route->compile();
     }
 
     public function testRequirementCharsetMismatch()
@@ -264,7 +264,7 @@ class RouteCompilerTest extends TestCase
         $this->expectException('LogicException');
         $route = new Route('/foo/{bar}', [], ['bar' => "\xE9"], ['utf8' => true]);
 
-        $compiled = $route->compile();
+        $route->compile();
     }
 
     public function testRouteWithFragmentAsPathParameter()
@@ -272,7 +272,7 @@ class RouteCompilerTest extends TestCase
         $this->expectException('InvalidArgumentException');
         $route = new Route('/{_fragment}');
 
-        $compiled = $route->compile();
+        $route->compile();
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Tests/Encoder/EncoderFactoryTest.php b/src/Symfony/Component/Security/Core/Tests/Encoder/EncoderFactoryTest.php
index 0b2c36c72d..48b7ebcbb2 100644
--- a/src/Symfony/Component/Security/Core/Tests/Encoder/EncoderFactoryTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Encoder/EncoderFactoryTest.php
@@ -117,7 +117,7 @@ class EncoderFactoryTest extends TestCase
 
         $user = new EncAwareUser('user', 'pass');
         $user->encoderName = 'invalid_encoder_name';
-        $encoder = $factory->getEncoder($user);
+        $factory->getEncoder($user);
     }
 
     public function testGetEncoderForEncoderAwareWithClassName()
diff --git a/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php b/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
index 2c4faaa31a..c2c1dde623 100644
--- a/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
+++ b/src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php
@@ -192,7 +192,7 @@ class GuardAuthenticationProviderTest extends TestCase
         $token->setAuthenticated(false);
 
         $provider = new GuardAuthenticationProvider([], $this->userProvider, $providerKey, $this->userChecker);
-        $actualToken = $provider->authenticate($token);
+        $provider->authenticate($token);
     }
 
     public function testSupportsChecksGuardAuthenticatorsTokenOrigin()
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
index 2b6e662700..fd49b54ccc 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/LogoutListenerTest.php
@@ -20,7 +20,7 @@ class LogoutListenerTest extends TestCase
 {
     public function testHandleUnmatchedPath()
     {
-        list($listener, $tokenStorage, $httpUtils, $options) = $this->getListener();
+        list($listener, , $httpUtils, $options) = $this->getListener();
 
         list($event, $request) = $this->getGetResponseEvent();
 
@@ -130,7 +130,7 @@ class LogoutListenerTest extends TestCase
         $this->expectException('RuntimeException');
         $successHandler = $this->getSuccessHandler();
 
-        list($listener, $tokenStorage, $httpUtils, $options) = $this->getListener($successHandler);
+        list($listener, , $httpUtils, $options) = $this->getListener($successHandler);
 
         list($event, $request) = $this->getGetResponseEvent();
 
@@ -152,7 +152,7 @@ class LogoutListenerTest extends TestCase
         $this->expectException('Symfony\Component\Security\Core\Exception\LogoutException');
         $tokenManager = $this->getTokenManager();
 
-        list($listener, $tokenStorage, $httpUtils, $options) = $this->getListener(null, $tokenManager);
+        list($listener, , $httpUtils, $options) = $this->getListener(null, $tokenManager);
 
         list($event, $request) = $this->getGetResponseEvent();
 
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
index 4478a1a4d8..0770872968 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/RememberMeListenerTest.php
@@ -221,7 +221,7 @@ class RememberMeListenerTest extends TestCase
 
     public function testSessionStrategy()
     {
-        list($listener, $tokenStorage, $service, $manager, , $dispatcher, $sessionStrategy) = $this->getListener(false, true, true);
+        list($listener, $tokenStorage, $service, $manager, , , $sessionStrategy) = $this->getListener(false, true, true);
 
         $tokenStorage
             ->expects($this->once())
@@ -286,7 +286,7 @@ class RememberMeListenerTest extends TestCase
 
     public function testSessionIsMigratedByDefault()
     {
-        list($listener, $tokenStorage, $service, $manager, , $dispatcher, $sessionStrategy) = $this->getListener(false, true, false);
+        list($listener, $tokenStorage, $service, $manager) = $this->getListener(false, true, false);
 
         $tokenStorage
             ->expects($this->once())
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/RemoteUserAuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/RemoteUserAuthenticationListenerTest.php
index 02d1ba03ce..fd29297a57 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/RemoteUserAuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/RemoteUserAuthenticationListenerTest.php
@@ -60,7 +60,7 @@ class RemoteUserAuthenticationListenerTest extends TestCase
         $method = new \ReflectionMethod($listener, 'getPreAuthenticatedData');
         $method->setAccessible(true);
 
-        $result = $method->invokeArgs($listener, [$request]);
+        $method->invokeArgs($listener, [$request]);
     }
 
     public function testGetPreAuthenticatedDataWithDifferentKeys()
diff --git a/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php b/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
index e35e685d5b..c81b2d589e 100644
--- a/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/Firewall/X509AuthenticationListenerTest.php
@@ -98,7 +98,7 @@ class X509AuthenticationListenerTest extends TestCase
         $method = new \ReflectionMethod($listener, 'getPreAuthenticatedData');
         $method->setAccessible(true);
 
-        $result = $method->invokeArgs($listener, [$request]);
+        $method->invokeArgs($listener, [$request]);
     }
 
     public function testGetPreAuthenticatedDataWithDifferentKeys()
diff --git a/src/Symfony/Component/Security/Http/Tests/FirewallTest.php b/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
index 673a8be713..774db6128f 100644
--- a/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/FirewallTest.php
@@ -48,8 +48,6 @@ class FirewallTest extends TestCase
 
     public function testOnKernelRequestStopsWhenThereIsAResponse()
     {
-        $response = new Response();
-
         $first = $this->getMockBuilder('Symfony\Component\Security\Http\Firewall\ListenerInterface')->getMock();
         $first
             ->expects($this->once())
diff --git a/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php b/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
index 465636eb9f..0a97ea7b8a 100644
--- a/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/RememberMe/ResponseListenerTest.php
@@ -65,8 +65,6 @@ class ResponseListenerTest extends TestCase
 
     public function testItSubscribesToTheOnKernelResponseEvent()
     {
-        $listener = new ResponseListener();
-
         $this->assertSame([KernelEvents::RESPONSE => 'onKernelResponse'], ResponseListener::getSubscribedEvents());
     }
 
diff --git a/src/Symfony/Component/Templating/Tests/Loader/FilesystemLoaderTest.php b/src/Symfony/Component/Templating/Tests/Loader/FilesystemLoaderTest.php
index c6dcdefc95..781e19d935 100644
--- a/src/Symfony/Component/Templating/Tests/Loader/FilesystemLoaderTest.php
+++ b/src/Symfony/Component/Templating/Tests/Loader/FilesystemLoaderTest.php
@@ -27,7 +27,6 @@ class FilesystemLoaderTest extends TestCase
     public function testConstructor()
     {
         $pathPattern = self::$fixturesPath.'/templates/%name%.%engine%';
-        $path = self::$fixturesPath.'/templates';
         $loader = new ProjectTemplateLoader2($pathPattern);
         $this->assertEquals([$pathPattern], $loader->getTemplatePathPatterns(), '__construct() takes a path as its second argument');
         $loader = new ProjectTemplateLoader2([$pathPattern]);
diff --git a/src/Symfony/Component/Validator/Constraints/FileValidator.php b/src/Symfony/Component/Validator/Constraints/FileValidator.php
index d3e3833ab7..0a58cd2d68 100644
--- a/src/Symfony/Component/Validator/Constraints/FileValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/FileValidator.php
@@ -60,7 +60,7 @@ class FileValidator extends ConstraintValidator
                         $binaryFormat = null === $constraint->binaryFormat ? true : $constraint->binaryFormat;
                     }
 
-                    list($sizeAsString, $limitAsString, $suffix) = $this->factorizeSizes(0, $limitInBytes, $binaryFormat);
+                    list(, $limitAsString, $suffix) = $this->factorizeSizes(0, $limitInBytes, $binaryFormat);
                     $this->context->buildViolation($constraint->uploadIniSizeErrorMessage)
                         ->setParameter('{{ limit }}', $limitAsString)
                         ->setParameter('{{ suffix }}', $suffix)
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
index 67b5a8c7b9..c0c89398ce 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/FileValidatorTest.php
@@ -450,7 +450,7 @@ abstract class FileValidatorTest extends ConstraintValidatorTestCase
             $reflection = new \ReflectionClass(\get_class(new FileValidator()));
             $method = $reflection->getMethod('factorizeSizes');
             $method->setAccessible(true);
-            list($sizeAsString, $limit, $suffix) = $method->invokeArgs(new FileValidator(), [0, UploadedFile::getMaxFilesize(), false]);
+            list(, $limit, $suffix) = $method->invokeArgs(new FileValidator(), [0, UploadedFile::getMaxFilesize(), false]);
 
             // it correctly parses the maxSize option and not only uses simple string comparison
             // 1000M should be bigger than the ini value
diff --git a/src/Symfony/Component/Workflow/Tests/DefinitionBuilderTest.php b/src/Symfony/Component/Workflow/Tests/DefinitionBuilderTest.php
index 7e96c8875e..b7ffdec96e 100644
--- a/src/Symfony/Component/Workflow/Tests/DefinitionBuilderTest.php
+++ b/src/Symfony/Component/Workflow/Tests/DefinitionBuilderTest.php
@@ -11,7 +11,7 @@ class DefinitionBuilderTest extends TestCase
     public function testAddPlaceInvalidName()
     {
         $this->expectException('Symfony\Component\Workflow\Exception\InvalidArgumentException');
-        $builder = new DefinitionBuilder(['a"', 'b']);
+        new DefinitionBuilder(['a"', 'b']);
     }
 
     public function testSetInitialPlace()
diff --git a/src/Symfony/Component/Workflow/Tests/DefinitionTest.php b/src/Symfony/Component/Workflow/Tests/DefinitionTest.php
index 185d4fd6c9..8df6494a1e 100644
--- a/src/Symfony/Component/Workflow/Tests/DefinitionTest.php
+++ b/src/Symfony/Component/Workflow/Tests/DefinitionTest.php
@@ -22,7 +22,7 @@ class DefinitionTest extends TestCase
     {
         $this->expectException('Symfony\Component\Workflow\Exception\InvalidArgumentException');
         $places = ['a"', 'e"'];
-        $definition = new Definition($places, []);
+        new Definition($places, []);
     }
 
     public function testSetInitialPlace()
@@ -37,7 +37,7 @@ class DefinitionTest extends TestCase
     {
         $this->expectException('Symfony\Component\Workflow\Exception\LogicException');
         $this->expectExceptionMessage('Place "d" cannot be the initial place as it does not exist.');
-        $definition = new Definition([], [], 'd');
+        new Definition([], [], 'd');
     }
 
     public function testAddTransition()
diff --git a/src/Symfony/Component/Workflow/Tests/TransitionTest.php b/src/Symfony/Component/Workflow/Tests/TransitionTest.php
index 009f19acfa..0e049158f7 100644
--- a/src/Symfony/Component/Workflow/Tests/TransitionTest.php
+++ b/src/Symfony/Component/Workflow/Tests/TransitionTest.php
@@ -11,7 +11,7 @@ class TransitionTest extends TestCase
     {
         $this->expectException('Symfony\Component\Workflow\Exception\InvalidArgumentException');
         $this->expectExceptionMessage('The transition "foo.bar" contains invalid characters.');
-        $transition = new Transition('foo.bar', 'a', 'b');
+        new Transition('foo.bar', 'a', 'b');
     }
 
     public function testConstructor()
diff --git a/src/Symfony/Component/Workflow/Tests/WorkflowTest.php b/src/Symfony/Component/Workflow/Tests/WorkflowTest.php
index 6a1d092a07..90990d8cbb 100644
--- a/src/Symfony/Component/Workflow/Tests/WorkflowTest.php
+++ b/src/Symfony/Component/Workflow/Tests/WorkflowTest.php
@@ -219,7 +219,7 @@ class WorkflowTest extends TestCase
         $this->assertFalse($marking->has('b'));
         $this->assertFalse($marking->has('c'));
 
-        $marking = $workflow->apply($subject, 'a_to_bc');
+        $workflow->apply($subject, 'a_to_bc');
         $marking = $workflow->apply($subject, 'b_to_c');
 
         $this->assertFalse($marking->has('a'));
@@ -291,7 +291,7 @@ class WorkflowTest extends TestCase
             'workflow.workflow_name.announce.t2',
         ];
 
-        $marking = $workflow->apply($subject, 't1');
+        $workflow->apply($subject, 't1');
 
         $this->assertSame($eventNameExpected, $eventDispatcher->dispatchedEvents);
     }
@@ -330,7 +330,7 @@ class WorkflowTest extends TestCase
             'workflow.workflow_name.announce',
         ];
 
-        $marking = $workflow->apply($subject, 'a-b');
+        $workflow->apply($subject, 'a-b');
 
         $this->assertSame($eventNameExpected, $eventDispatcher->dispatchedEvents);
     }
diff --git a/src/Symfony/Component/Yaml/Tests/Command/LintCommandTest.php b/src/Symfony/Component/Yaml/Tests/Command/LintCommandTest.php
index b1306f043c..349897859f 100644
--- a/src/Symfony/Component/Yaml/Tests/Command/LintCommandTest.php
+++ b/src/Symfony/Component/Yaml/Tests/Command/LintCommandTest.php
@@ -85,7 +85,7 @@ YAML;
         $filename = $this->createFile('');
         unlink($filename);
 
-        $ret = $tester->execute(['filename' => $filename], ['decorated' => false]);
+        $tester->execute(['filename' => $filename], ['decorated' => false]);
     }
 
     /**
diff --git a/src/Symfony/Component/Yaml/Tests/ParserTest.php b/src/Symfony/Component/Yaml/Tests/ParserTest.php
index c48f0b4f45..dc7c122d59 100644
--- a/src/Symfony/Component/Yaml/Tests/ParserTest.php
+++ b/src/Symfony/Component/Yaml/Tests/ParserTest.php
@@ -110,7 +110,7 @@ class ParserTest extends TestCase
 
         foreach ($yamls as $yaml) {
             try {
-                $content = $this->parser->parse($yaml);
+                $this->parser->parse($yaml);
 
                 $this->fail('YAML files must not contain tabs');
             } catch (\Exception $e) {