Merge branch '3.4' into 4.3

* 3.4:
  [Yaml] fix test for PHP 7.4
  Add polyfill for TestCase::createMock()
  Skip tests that fatal-error on PHP 7.4 because of missing parent classes

Author: nicolas-grekas

Tests/Compiler/AutowirePassTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\DependencyInjection\Tests\Compiler;
 
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Warning;
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 use Symfony\Component\Config\FileLocator;
@@ -353,6 +354,10 @@ public function testClassNotFoundThrowsException()
      */
     public function testParentClassNotFoundThrowsException()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
 
         $aDefinition = $container->register('a', __NAMESPACE__.'\BadParentTypeHintedArgument');
@@ -618,6 +623,10 @@ public function getCreateResourceTests()
 
     public function testIgnoreServiceWithClassNotExisting()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
 
         $container->register('class_not_exist', __NAMESPACE__.'\OptionalServiceClass');
@@ -823,6 +832,10 @@ public function testExceptionWhenAliasExists()
      */
     public function testExceptionWhenAliasDoesNotExist()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
 
         // multiple I instances... but no IInterface alias

Tests/Compiler/ResolveBindingsPassTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\DependencyInjection\Tests\Compiler;
 
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Warning;
 use Symfony\Component\DependencyInjection\Argument\BoundArgument;
 use Symfony\Component\DependencyInjection\Compiler\AutowireRequiredMethodsPass;
 use Symfony\Component\DependencyInjection\Compiler\ResolveBindingsPass;
@@ -69,6 +70,10 @@ public function testUnusedBinding()
      */
     public function testMissingParent()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
 
         $definition = $container->register(ParentNotExists::class, ParentNotExists::class);

Tests/Dumper/PhpDumperTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\DependencyInjection\Tests\Dumper;
 
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Warning;
 use Psr\Container\ContainerInterface;
 use Symfony\Bridge\PhpUnit\ForwardCompatTestTrait;
 use Symfony\Component\Config\FileLocator;
@@ -1060,6 +1061,10 @@ public function testInlineSelfRef()
 
     public function testHotPathOptimizations()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = include self::$fixturesPath.'/containers/container_inline_requires.php';
         $container->setParameter('inline_requires', true);
         $container->compile();

Tests/Loader/FileLoaderTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\DependencyInjection\Tests\Loader;
 
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Warning;
 use Psr\Container\ContainerInterface as PsrContainerInterface;
 use Symfony\Bridge\PhpUnit\ForwardCompatTestTrait;
 use Symfony\Component\Config\FileLocator;
@@ -111,6 +112,10 @@ public function testRegisterClasses()
 
     public function testRegisterClassesWithExclude()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
         $container->setParameter('other_dir', 'OtherDir');
         $loader = new TestFileLoader($container, new FileLocator(self::$fixturesPath.'/Fixtures'));
@@ -159,6 +164,10 @@ public function testRegisterClassesWithExcludeAsArray()
 
     public function testNestedRegisterClasses()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
         $loader = new TestFileLoader($container, new FileLocator(self::$fixturesPath.'/Fixtures'));
 
@@ -187,6 +196,10 @@ public function testNestedRegisterClasses()
 
     public function testMissingParentClass()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            throw new Warning('PHP 7.4 breaks this test, see https://bugs.php.net/78351.');
+        }
+
         $container = new ContainerBuilder();
         $container->setParameter('bad_classes_dir', 'BadClasses');
         $loader = new TestFileLoader($container, new FileLocator(self::$fixturesPath.'/Fixtures'));