class ContentTypeHeaderMatcherTest

class ContentTypeHeaderMatcherTest extends UnitTestCase {
    
    /**
     * A collection of shared fixture data for tests.
     *
     * @var RoutingFixtures
     */
    protected $fixtures;
    
    /**
     * The matcher object that is going to be tested.
     *
     * @var \Drupal\Core\Routing\ContentTypeHeaderMatcher
     */
    protected $matcher;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->fixtures = new RoutingFixtures();
        $this->matcher = new ContentTypeHeaderMatcher();
    }
    
    /**
     * Tests that routes are not filtered on safe requests.
     *
     * @dataProvider providerTestSafeRequestFilter
     */
    public function testSafeRequestFilter($method) : void {
        $collection = $this->fixtures
            ->sampleRouteCollection();
        $collection->addCollection($this->fixtures
            ->contentRouteCollection());
        $request = Request::create('path/two', $method);
        $routes = $this->matcher
            ->filter($collection, $request);
        $this->assertCount(7, $routes, 'The correct number of routes was found.');
    }
    public static function providerTestSafeRequestFilter() {
        return [
            [
                'GET',
            ],
            [
                'HEAD',
            ],
            [
                'OPTIONS',
            ],
            [
                'TRACE',
            ],
            [
                'DELETE',
            ],
        ];
    }
    
    /**
     * Tests that XML-restricted routes get filtered out on JSON requests.
     */
    public function testJsonRequest() : void {
        $collection = $this->fixtures
            ->sampleRouteCollection();
        $collection->addCollection($this->fixtures
            ->contentRouteCollection());
        $request = Request::create('path/two', 'POST');
        $request->headers
            ->set('Content-type', 'application/json');
        $routes = $this->matcher
            ->filter($collection, $request);
        $this->assertCount(6, $routes, 'The correct number of routes was found.');
        $this->assertNotNull($routes->get('route_f'), 'The json route was found.');
        $this->assertNull($routes->get('route_g'), 'The xml route was not found.');
        foreach ($routes as $name => $route) {
            $this->assertEquals('route_f', $name, 'The json route is the first one in the collection.');
            break;
        }
    }
    
    /**
     * Tests route filtering on POST form submission requests.
     */
    public function testPostForm() : void {
        $collection = $this->fixtures
            ->sampleRouteCollection();
        $collection->addCollection($this->fixtures
            ->contentRouteCollection());
        // Test that all XML and JSON restricted routes get filtered out on a POST
        // form submission.
        $request = Request::create('path/two', 'POST');
        $request->headers
            ->set('Content-type', 'application/www-form-urlencoded');
        $routes = $this->matcher
            ->filter($collection, $request);
        $this->assertCount(5, $routes, 'The correct number of routes was found.');
        $this->assertNull($routes->get('route_f'), 'The json route was found.');
        $this->assertNull($routes->get('route_g'), 'The xml route was not found.');
    }
    
    /**
     * Confirms that the matcher throws an exception for no-route.
     *
     * @covers ::filter
     */
    public function testNoRouteFound() : void {
        $matcher = new ContentTypeHeaderMatcher();
        $routes = $this->fixtures
            ->contentRouteCollection();
        $request = Request::create('path/two', 'POST');
        $request->headers
            ->set('Content-type', 'text/html');
        $this->expectException(UnsupportedMediaTypeHttpException::class);
        $this->expectExceptionMessage('No route found that matches "Content-Type: text/html"');
        $matcher->filter($routes, $request);
    }
    
    /**
     * Confirms that the matcher throws an exception for missing request header.
     *
     * @covers ::filter
     */
    public function testContentTypeRequestHeaderMissing() : void {
        $matcher = new ContentTypeHeaderMatcher();
        $routes = $this->fixtures
            ->contentRouteCollection();
        $request = Request::create('path/two', 'POST');
        // Delete all request headers that Request::create() sets by default.
        $request->headers = new HeaderBag();
        $this->expectException(UnsupportedMediaTypeHttpException::class);
        $this->expectExceptionMessage('No "Content-Type" request header specified');
        $matcher->filter($routes, $request);
    }

}