class OptionsRequestSubscriberTest

class OptionsRequestSubscriberTest extends UnitTestCase {
  
  /**
   * @covers ::onRequest
   */
  public function testWithNonOptionRequest() : void {
    $kernel = $this->prophesize(HttpKernelInterface::class);
    $request = Request::create('/example', 'GET');
    $route_provider = $this->prophesize(RouteProviderInterface::class);
    $route_provider->getRouteCollectionForRequest($request)
      ->shouldNotBeCalled();
    $subscriber = new OptionsRequestSubscriber($route_provider->reveal());
    $event = new RequestEvent($kernel->reveal(), $request, HttpKernelInterface::MAIN_REQUEST);
    $subscriber->onRequest($event);
    $this->assertFalse($event->hasResponse());
  }
  
  /**
   * @covers ::onRequest
   */
  public function testWithoutMatchingRoutes() : void {
    $kernel = $this->prophesize(HttpKernelInterface::class);
    $request = Request::create('/example', 'OPTIONS');
    $route_provider = $this->prophesize(RouteProviderInterface::class);
    $route_provider->getRouteCollectionForRequest($request)
      ->willReturn(new RouteCollection())
      ->shouldBeCalled();
    $subscriber = new OptionsRequestSubscriber($route_provider->reveal());
    $event = new RequestEvent($kernel->reveal(), $request, HttpKernelInterface::MAIN_REQUEST);
    $subscriber->onRequest($event);
    $this->assertFalse($event->hasResponse());
  }
  
  /**
   * @covers ::onRequest
   * @dataProvider providerTestOnRequestWithOptionsRequest
   */
  public function testWithOptionsRequest(RouteCollection $collection, $expected_header) : void {
    $kernel = $this->prophesize(HttpKernelInterface::class);
    $request = Request::create('/example', 'OPTIONS');
    $route_provider = $this->prophesize(RouteProviderInterface::class);
    $route_provider->getRouteCollectionForRequest($request)
      ->willReturn($collection)
      ->shouldBeCalled();
    $subscriber = new OptionsRequestSubscriber($route_provider->reveal());
    $event = new RequestEvent($kernel->reveal(), $request, HttpKernelInterface::MAIN_REQUEST);
    $subscriber->onRequest($event);
    $this->assertTrue($event->hasResponse());
    $response = $event->getResponse();
    $this->assertEquals(200, $response->getStatusCode());
    $this->assertEquals($expected_header, $response->headers
      ->get('Allow'));
  }
  public static function providerTestOnRequestWithOptionsRequest() {
    $data = [];
    foreach ([
      'GET',
      'POST',
      'PATCH',
      'PUT',
      'DELETE',
    ] as $method) {
      $collection = new RouteCollection();
      $collection->add('example.1', new Route('/example', [], [], [], '', [], [
        $method,
      ]));
      $data['one_route_' . $method] = [
        $collection,
        $method,
      ];
    }
    foreach ([
      'GET',
      'POST',
      'PATCH',
      'PUT',
      'DELETE',
    ] as $method_a) {
      foreach ([
        'GET',
        'POST',
        'PATCH',
        'PUT',
        'DELETE',
      ] as $method_b) {
        if ($method_a != $method_b) {
          $collection = new RouteCollection();
          $collection->add('example.1', new Route('/example', [], [], [], '', [], [
            $method_a,
            $method_b,
          ]));
          $data['one_route_' . $method_a . '_' . $method_b] = [
            $collection,
            $method_a . ', ' . $method_b,
          ];
        }
      }
    }
    foreach ([
      'GET',
      'POST',
      'PATCH',
      'PUT',
      'DELETE',
    ] as $method_a) {
      foreach ([
        'GET',
        'POST',
        'PATCH',
        'PUT',
        'DELETE',
      ] as $method_b) {
        foreach ([
          'GET',
          'POST',
          'PATCH',
          'PUT',
          'DELETE',
        ] as $method_c) {
          $collection = new RouteCollection();
          $collection->add('example.1', new Route('/example', [], [], [], '', [], [
            $method_a,
          ]));
          $collection->add('example.2', new Route('/example', [], [], [], '', [], [
            $method_a,
            $method_b,
          ]));
          $collection->add('example.3', new Route('/example', [], [], [], '', [], [
            $method_b,
            $method_c,
          ]));
          $methods = array_unique([
            $method_a,
            $method_b,
            $method_c,
          ]);
          $data['multiple_routes_' . $method_a . '_' . $method_b . '_' . $method_c] = [
            $collection,
            implode(', ', $methods),
          ];
        }
      }
    }
    return $data;
  }

}