function DrupalKernelTest::testCompileDIC

Tests DIC compilation.

File

core/tests/Drupal/KernelTests/Core/DrupalKernel/DrupalKernelTest.php, line 76

Class

DrupalKernelTest

Tests DIC compilation to disk.

Namespace

Code

public function testCompileDIC() : void {
    // @todo Write a memory based storage backend for testing.
    $modules_enabled = [
        'system' => 'system',
        'user' => 'user',
    ];
    $request = Request::createFromGlobals();
    $this->getTestKernel($request, $modules_enabled);
    // Instantiate it a second time and we should get the compiled Container
    // class.
    $kernel = $this->getTestKernel($request);
    $container = $kernel->getContainer();
    $refClass = new \ReflectionClass($container);
    $is_compiled_container = !$refClass->isSubclassOf('Symfony\\Component\\DependencyInjection\\ContainerBuilder');
    $this->assertTrue($is_compiled_container);
    // Verify that the list of modules is the same for the initial and the
    // compiled container.
    $module_list = array_keys($container->get('module_handler')
        ->getModuleList());
    $this->assertEquals(array_values($modules_enabled), $module_list);
    // Get the container another time, simulating a "production" environment.
    $container = $this->getTestKernel($request, NULL)
        ->getContainer();
    $refClass = new \ReflectionClass($container);
    $is_compiled_container = !$refClass->isSubclassOf('Symfony\\Component\\DependencyInjection\\ContainerBuilder');
    $this->assertTrue($is_compiled_container);
    // Verify that the list of modules is the same for the initial and the
    // compiled container.
    $module_list = array_keys($container->get('module_handler')
        ->getModuleList());
    $this->assertEquals(array_values($modules_enabled), $module_list);
    // Test that our synthetic services are there.
    $class_loader = $container->get('class_loader');
    $refClass = new \ReflectionClass($class_loader);
    $this->assertTrue($refClass->hasMethod('loadClass'), 'Container has a class loader');
    // We make this assertion here purely to show that the new container below
    // is functioning correctly, i.e. we get a brand new ContainerBuilder
    // which has the required new services, after changing the list of enabled
    // modules.
    $this->assertFalse($container->has('service_provider_test_class'));
    // Add another module so that we can test that the new module's bundle is
    // registered to the new container.
    $modules_enabled['service_provider_test'] = 'service_provider_test';
    $this->getTestKernel($request, $modules_enabled);
    // Instantiate it a second time and we should not get a ContainerBuilder
    // class because we are loading the container definition from cache.
    $kernel = $this->getTestKernel($request, $modules_enabled);
    $container = $kernel->getContainer();
    $refClass = new \ReflectionClass($container);
    $is_container_builder = $refClass->isSubclassOf('Symfony\\Component\\DependencyInjection\\ContainerBuilder');
    $this->assertFalse($is_container_builder, 'Container is not a builder');
    // Assert that the new module's bundle was registered to the new container.
    $this->assertTrue($container->has('service_provider_test_class'), 'Container has test service');
    // Test that our synthetic services are there.
    $class_loader = $container->get('class_loader');
    $refClass = new \ReflectionClass($class_loader);
    $this->assertTrue($refClass->hasMethod('loadClass'), 'Container has a class loader');
    // Check that the location of the new module is registered.
    $modules = $container->getParameter('container.modules');
    $module_extension_list = $container->get('extension.list.module');
    $this->assertEquals([
        'type' => 'module',
        'pathname' => $module_extension_list->getPathname('service_provider_test'),
        'filename' => NULL,
    ], $modules['service_provider_test']);
    // Check that the container itself is not among the persist IDs because it
    // does not make sense to persist the container itself.
    $persist_ids = $container->getParameter('persist_ids');
    $this->assertNotContains('service_container', $persist_ids);
}