DrupalKernelTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\DrupalKernel;

use Composer\Autoload\ClassLoader;
use Drupal\Core\DrupalKernel;
use Drupal\Tests\UnitTestCase;
use org\bovigo\vfs\vfsStream;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

/**
 * @coversDefaultClass \Drupal\Core\DrupalKernel
 * @group DrupalKernel
 */
class DrupalKernelTest extends UnitTestCase {
    
    /**
     * Tests hostname validation with settings.
     *
     * @covers ::setupTrustedHosts
     * @dataProvider providerTestTrustedHosts
     */
    public function testTrustedHosts($host, $server_name, $message, $expected = FALSE) : void {
        $request = new Request();
        $trusted_host_patterns = [
            '^example\\.com$',
            '^.+\\.example\\.com$',
            '^example\\.org',
            '^.+\\.example\\.org',
        ];
        if (!empty($host)) {
            $request->headers
                ->set('HOST', $host);
        }
        $request->server
            ->set('SERVER_NAME', $server_name);
        $method = new \ReflectionMethod('Drupal\\Core\\DrupalKernel', 'setupTrustedHosts');
        $valid_host = $method->invoke(NULL, $request, $trusted_host_patterns);
        $this->assertSame($expected, $valid_host, $message);
        // Reset the trusted hosts because it is statically stored on the request.
        $method->invoke(NULL, $request, []);
        // Reset the request factory because it is statically stored on the request.
        Request::setFactory(NULL);
    }
    
    /**
     * Provides test data for testTrustedHosts().
     */
    public static function providerTestTrustedHosts() {
        $data = [];
        // Tests canonical URL.
        $data[] = [
            'www.example.com',
            'www.example.com',
            'canonical URL is trusted',
            TRUE,
        ];
        // Tests missing hostname for HTTP/1.0 compatibility where the Host
        // header is optional.
        $data[] = [
            NULL,
            'www.example.com',
            'empty Host is valid',
            TRUE,
        ];
        // Tests the additional patterns from the settings.
        $data[] = [
            'example.com',
            'www.example.com',
            'host from settings is trusted',
            TRUE,
        ];
        $data[] = [
            'subdomain.example.com',
            'www.example.com',
            'host from settings is trusted',
            TRUE,
        ];
        $data[] = [
            'www.example.org',
            'www.example.com',
            'host from settings is trusted',
            TRUE,
        ];
        $data[] = [
            'example.org',
            'www.example.com',
            'host from settings is trusted',
            TRUE,
        ];
        // Tests mismatch.
        $data[] = [
            'www.black_hat.com',
            'www.example.com',
            'unspecified host is untrusted',
            FALSE,
        ];
        return $data;
    }
    
    /**
     * Tests site path finding.
     *
     * This test is run in a separate process since it defines DRUPAL_ROOT. This
     * stops any possible pollution of other tests.
     *
     * @covers ::findSitePath
     * @runInSeparateProcess
     */
    public function testFindSitePath() : void {
        $vfs_root = vfsStream::setup('drupal_root');
        $sites_php = <<<'EOD'
<?php
$sites['8888.www.example.org'] = 'example';
EOD;
        // Create the expected directory structure.
        vfsStream::create([
            'sites' => [
                'sites.php' => $sites_php,
                'example' => [
                    'settings.php' => 'test',
                ],
            ],
        ]);
        $request = new Request();
        $request->server
            ->set('SERVER_NAME', 'www.example.org');
        $request->server
            ->set('SERVER_PORT', '8888');
        $request->server
            ->set('SCRIPT_NAME', '/index.php');
        $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, TRUE, $vfs_root->url()));
        $this->assertEquals('sites/example', DrupalKernel::findSitePath($request, FALSE, $vfs_root->url()));
    }
    
    /**
     * @covers ::terminate
     * @runInSeparateProcess
     */
    public function testUnBootedTerminate() : void {
        $kernel = new DrupalKernel('test', new ClassLoader());
        $kernel->terminate(new Request(), new Response());
        $this->assertTrue(TRUE, "\\Drupal\\Core\\DrupalKernel::terminate() called without error on kernel which has not booted");
    }

}

/**
 * A fake autoloader for testing.
 */
class FakeAutoloader {
    
    /**
     * Registers this instance as an autoloader.
     *
     * @param bool $prepend
     *   Whether to prepend the autoloader or not
     */
    public function register($prepend = FALSE) {
        spl_autoload_register([
            $this,
            'loadClass',
        ], TRUE, $prepend);
    }
    
    /**
     * Deregisters this instance as an autoloader.
     */
    public function unregister() {
        spl_autoload_unregister([
            $this,
            'loadClass',
        ]);
    }
    
    /**
     * Loads the given class or interface.
     *
     * This class never loads.
     */
    public function loadClass() {
        return NULL;
    }
    
    /**
     * Finds a file by class name while caching lookups to APC.
     *
     * This class never finds.
     */
    public function findFile() {
        return NULL;
    }

}