Remove flaky test

Depending on the order of the test suite execution we were having issues
as the compiled container for `CompilerTest` was using the same FQCN as
the `GeneratorTest`.

This makes sure we use different namespaces for the generated
containers, avoiding those conflicts.

It also plugs vfsStream to remove the file system dependency on
`CompilerTest`.

Running PHPUnit using the flag `--random-order-seed=1634593025` was
enough to reproduce the issue.

test/CompilerTest.php

@@ -16,15 +16,11 @@
 use Symfony\Component\DependencyInjection\Compiler\PassConfig;
 use Symfony\Component\DependencyInjection\Container;
 
-use function bin2hex;
 use function count;
-use function exec;
 use function file_get_contents;
 use function file_put_contents;
 use function iterator_to_array;
 use function mkdir;
-use function random_bytes;
-use function realpath;
 
 /**
  * @covers \Lcobucci\DependencyInjection\Compiler
@@ -53,7 +49,7 @@ final class CompilerTest extends TestCase
     public function configureDependencies(): void
     {
         vfsStream::setup(
-            'tests',
+            'tests-compilation',
             null,
             ['services.yml' => 'services: { testing: { class: stdClass } }'],
         );
@@ -67,8 +63,8 @@ public function configureDependencies(): void
         $this->dump    = new ConfigCache($this->dumpDir . '/AppContainer.php', false);
 
         $this->config = new ContainerConfiguration(
-            'Me\\MyApp',
-            [vfsStream::url('tests/services.yml')],
+            'Me\\CompilationTest',
+            [vfsStream::url('tests-compilation/services.yml')],
             [
                 [$this->parameters, PassConfig::TYPE_BEFORE_OPTIMIZATION],
                 [[MakeServicesPublic::class, []], PassConfig::TYPE_BEFORE_OPTIMIZATION],
@@ -80,18 +76,12 @@ public function configureDependencies(): void
 
     private function createDumpDirectory(): string
     {
-        $dir = __DIR__ . '/../tmp/' . bin2hex(random_bytes(5)) . '/me_myapp';
+        $dir = vfsStream::url('tests-compilation/tmp/me_myapp');
         mkdir($dir, 0777, true);
 
         return $dir;
     }
 
-    /** @after */
-    public function cleanUpDumpDirectory(): void
-    {
-        exec('rm -rf ' . realpath($this->dumpDir . '/../../'));
-    }
-
     /** @test */
     public function compileShouldCreateMultipleFilesForDevelopmentMode(): void
     {
@@ -143,7 +133,7 @@ public function compileShouldTrackChangesOnTheConfigurationFile(): void
     public function compileShouldAllowForLazyServices(): void
     {
         file_put_contents(
-            vfsStream::url('tests/services.yml'),
+            vfsStream::url('tests-compilation/services.yml'),
             'services: { testing: { class: stdClass, lazy: true } }',
         );
 

test/GeneratorTest.php

@@ -79,27 +79,27 @@ public function initializeContainerCanOptionallyUseACustomClass(): void
     public function generateShouldCompileAndLoadTheContainer(): void
     {
         vfsStream::setup(
-            'tests',
+            'tests-generation',
             null,
             ['services.yml' => 'services: { testing: { class: stdClass, public: true } }'],
         );
 
         $config = new ContainerConfiguration(
-            'Me\\MyApp',
-            [vfsStream::url('tests/services.yml')],
+            'Me\\GenerationTest',
+            [vfsStream::url('tests-generation/services.yml')],
             [
                 [new ParameterBag(['app.devmode' => true]), PassConfig::TYPE_BEFORE_OPTIMIZATION],
                 [
                     new DumpXmlContainer(
-                        new ConfigCache(vfsStream::url('tests/dump.xml'), true),
+                        new ConfigCache(vfsStream::url('tests-generation/dump.xml'), true),
                     ),
                     PassConfig::TYPE_AFTER_REMOVING,
                     -255,
                 ],
             ],
         );
 
-        $dump = new ConfigCache(vfsStream::url('tests/container.php'), false);
+        $dump = new ConfigCache(vfsStream::url('tests-generation/container.php'), false);
 
         $this->generator->method('getLoader')->willReturnCallback(
             static function (SymfonyBuilder $container, array $paths): YamlFileLoader {
@@ -113,6 +113,6 @@ static function (SymfonyBuilder $container, array $paths): YamlFileLoader {
         $container = $this->generator->generate($config, $dump);
 
         self::assertInstanceOf(stdClass::class, $container->get('testing'));
-        self::assertFileExists(vfsStream::url('tests/dump.xml'));
+        self::assertFileExists(vfsStream::url('tests-generation/dump.xml'));
     }
 }