StackKernelIntegrationTest.php

<?php

declare (strict_types=1);
namespace Drupal\KernelTests\Core\HttpKernel;

use Drupal\Core\Url;
use Drupal\KernelTests\KernelTestBase;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\HttpKernelInterface;

/**
 * Tests the stacked kernel functionality.
 *
 * @group Routing
 */
class StackKernelIntegrationTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'http_kernel_test',
        'system',
    ];
    
    /**
     * Tests a request.
     */
    public function testRequest() : void {
        $request = Request::create((new Url('http_kernel_test.empty'))->toString());
        
        /** @var \Symfony\Component\HttpKernel\HttpKernelInterface $http_kernel */
        $http_kernel = \Drupal::service('http_kernel');
        $http_kernel->handle($request, HttpKernelInterface::MAIN_REQUEST, FALSE);
        $this->assertEquals('world', $request->attributes
            ->get('_hello'));
        $this->assertEquals('test_argument', $request->attributes
            ->get('_previous_optional_argument'));
    }
    
    /**
     * Tests that late middlewares are automatically flagged lazy.
     */
    public function testLazyLateMiddlewares() : void {
        $this->assertFalse($this->container
            ->getDefinition('http_middleware.reverse_proxy')
            ->isLazy(), 'lazy flag on http_middleware.reverse_proxy definition is not set');
        $this->assertFalse($this->container
            ->getDefinition('http_middleware.kernel_pre_handle')
            ->isLazy(), 'lazy flag on http_middleware.kernel_pre_handle definition is not set');
        $this->assertFalse($this->container
            ->getDefinition('http_middleware.session')
            ->isLazy(), 'lazy flag on http_middleware.session definition is not set');
        $this->assertFalse($this->container
            ->getDefinition('http_kernel.basic')
            ->isLazy(), 'lazy flag on http_kernel.basic definition is not set');
        \Drupal::service('module_installer')->install([
            'page_cache',
        ]);
        $this->container = \Drupal::service('kernel')->rebuildContainer();
        $this->assertFalse($this->container
            ->getDefinition('http_middleware.reverse_proxy')
            ->isLazy(), 'lazy flag on http_middleware.reverse_proxy definition is not set');
        $this->assertFalse($this->container
            ->getDefinition('http_middleware.page_cache')
            ->isLazy(), 'lazy flag on http_middleware.page_cache definition is not set');
        $this->assertTrue($this->container
            ->getDefinition('http_middleware.kernel_pre_handle')
            ->isLazy(), 'lazy flag on http_middleware.kernel_pre_handle definition is automatically set if page_cache is enabled.');
        $this->assertTrue($this->container
            ->getDefinition('http_middleware.session')
            ->isLazy(), 'lazy flag on http_middleware.session definition is automatically set if page_cache is enabled.');
        $this->assertTrue($this->container
            ->getDefinition('http_kernel.basic')
            ->isLazy(), 'lazy flag on http_kernel.basic definition is automatically set if page_cache is enabled.');
    }

}