class HttpKernelTest

class HttpKernelTest extends \PHPUnit_Framework_TestCase {
  protected function setUp() {
    if (!class_exists('Symfony\\Component\\EventDispatcher\\EventDispatcher')) {
      $this
        ->markTestSkipped('The "EventDispatcher" component is not available');
    }
    if (!class_exists('Symfony\\Component\\HttpFoundation\\Request')) {
      $this
        ->markTestSkipped('The "HttpFoundation" component is not available');
    }
  }

  /**
   * @expectedException RuntimeException
   */
  public function testHandleWhenControllerThrowsAnExceptionAndRawIsTrue() {
    $kernel = new HttpKernel(new EventDispatcher(), $this
      ->getResolver(function () {
      throw new \RuntimeException();
    }));
    $kernel
      ->handle(new Request(), HttpKernelInterface::MASTER_REQUEST, true);
  }

  /**
   * @expectedException RuntimeException
   */
  public function testHandleWhenControllerThrowsAnExceptionAndRawIsFalseAndNoListenerIsRegistered() {
    $kernel = new HttpKernel(new EventDispatcher(), $this
      ->getResolver(function () {
      throw new \RuntimeException();
    }));
    $kernel
      ->handle(new Request(), HttpKernelInterface::MASTER_REQUEST, false);
  }
  public function testHandleWhenControllerThrowsAnExceptionAndRawIsFalse() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::EXCEPTION, function ($event) {
      $event
        ->setResponse(new Response($event
        ->getException()
        ->getMessage()));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      throw new \RuntimeException('foo');
    }));
    $response = $kernel
      ->handle(new Request());
    $this
      ->assertEquals('500', $response
      ->getStatusCode());
    $this
      ->assertEquals('foo', $response
      ->getContent());
  }
  public function testHandleExceptionWithARedirectionResponse() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::EXCEPTION, function ($event) {
      $event
        ->setResponse(new RedirectResponse('/login', 301));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      throw new AccessDeniedHttpException();
    }));
    $response = $kernel
      ->handle(new Request());
    $this
      ->assertEquals('301', $response
      ->getStatusCode());
    $this
      ->assertEquals('/login', $response->headers
      ->get('Location'));
  }
  public function testHandleHttpException() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::EXCEPTION, function ($event) {
      $event
        ->setResponse(new Response($event
        ->getException()
        ->getMessage()));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      throw new MethodNotAllowedHttpException(array(
        'POST',
      ));
    }));
    $response = $kernel
      ->handle(new Request());
    $this
      ->assertEquals('405', $response
      ->getStatusCode());
    $this
      ->assertEquals('POST', $response->headers
      ->get('Allow'));
  }

  /**
   * @dataProvider getStatusCodes
   */
  public function testHandleWhenAnExceptionIsHandledWithASpecificStatusCode($responseStatusCode, $expectedStatusCode) {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::EXCEPTION, function ($event) use ($responseStatusCode, $expectedStatusCode) {
      $event
        ->setResponse(new Response('', $responseStatusCode, array(
        'X-Status-Code' => $expectedStatusCode,
      )));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      throw new \RuntimeException();
    }));
    $response = $kernel
      ->handle(new Request());
    $this
      ->assertEquals($expectedStatusCode, $response
      ->getStatusCode());
    $this
      ->assertFalse($response->headers
      ->has('X-Status-Code'));
  }
  public function getStatusCodes() {
    return array(
      array(
        200,
        404,
      ),
      array(
        404,
        200,
      ),
      array(
        301,
        200,
      ),
      array(
        500,
        200,
      ),
    );
  }
  public function testHandleWhenAListenerReturnsAResponse() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::REQUEST, function ($event) {
      $event
        ->setResponse(new Response('hello'));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver());
    $this
      ->assertEquals('hello', $kernel
      ->handle(new Request())
      ->getContent());
  }

  /**
   * @expectedException Symfony\Component\HttpKernel\Exception\NotFoundHttpException
   */
  public function testHandleWhenNoControllerIsFound() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(false));
    $kernel
      ->handle(new Request());
  }

  /**
   * @expectedException LogicException
   */
  public function testHandleWhenTheControllerIsNotACallable() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver('foobar'));
    $kernel
      ->handle(new Request());
  }
  public function testHandleWhenTheControllerIsAClosure() {
    $response = new Response('foo');
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () use ($response) {
      return $response;
    }));
    $this
      ->assertSame($response, $kernel
      ->handle(new Request()));
  }
  public function testHandleWhenTheControllerIsAnObjectWithInvoke() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(new Controller()));
    $this
      ->assertResponseEquals(new Response('foo'), $kernel
      ->handle(new Request()));
  }
  public function testHandleWhenTheControllerIsAFunction() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver('Symfony\\Component\\HttpKernel\\Tests\\controller_func'));
    $this
      ->assertResponseEquals(new Response('foo'), $kernel
      ->handle(new Request()));
  }
  public function testHandleWhenTheControllerIsAnArray() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(array(
      new Controller(),
      'controller',
    )));
    $this
      ->assertResponseEquals(new Response('foo'), $kernel
      ->handle(new Request()));
  }
  public function testHandleWhenTheControllerIsAStaticArray() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(array(
      'Symfony\\Component\\HttpKernel\\Tests\\Controller',
      'staticcontroller',
    )));
    $this
      ->assertResponseEquals(new Response('foo'), $kernel
      ->handle(new Request()));
  }

  /**
   * @expectedException LogicException
   */
  public function testHandleWhenTheControllerDoesNotReturnAResponse() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      return 'foo';
    }));
    $kernel
      ->handle(new Request());
  }
  public function testHandleWhenTheControllerDoesNotReturnAResponseButAViewIsRegistered() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::VIEW, function ($event) {
      $event
        ->setResponse(new Response($event
        ->getControllerResult()));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver(function () {
      return 'foo';
    }));
    $this
      ->assertEquals('foo', $kernel
      ->handle(new Request())
      ->getContent());
  }
  public function testHandleWithAResponseListener() {
    $dispatcher = new EventDispatcher();
    $dispatcher
      ->addListener(KernelEvents::RESPONSE, function ($event) {
      $event
        ->setResponse(new Response('foo'));
    });
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver());
    $this
      ->assertEquals('foo', $kernel
      ->handle(new Request())
      ->getContent());
  }
  public function testTerminate() {
    $dispatcher = new EventDispatcher();
    $kernel = new HttpKernel($dispatcher, $this
      ->getResolver());
    $dispatcher
      ->addListener(KernelEvents::TERMINATE, function ($event) use (&$called, &$capturedKernel, &$capturedRequest, &$capturedResponse) {
      $called = true;
      $capturedKernel = $event
        ->getKernel();
      $capturedRequest = $event
        ->getRequest();
      $capturedResponse = $event
        ->getResponse();
    });
    $kernel
      ->terminate($request = Request::create('/'), $response = new Response());
    $this
      ->assertTrue($called);
    $this
      ->assertEquals($kernel, $capturedKernel);
    $this
      ->assertEquals($request, $capturedRequest);
    $this
      ->assertEquals($response, $capturedResponse);
  }
  protected function getResolver($controller = null) {
    if (null === $controller) {
      $controller = function () {
        return new Response('Hello');
      };
    }
    $resolver = $this
      ->getMock('Symfony\\Component\\HttpKernel\\Controller\\ControllerResolverInterface');
    $resolver
      ->expects($this
      ->any())
      ->method('getController')
      ->will($this
      ->returnValue($controller));
    $resolver
      ->expects($this
      ->any())
      ->method('getArguments')
      ->will($this
      ->returnValue(array()));
    return $resolver;
  }
  protected function assertResponseEquals(Response $expected, Response $actual) {
    $expected
      ->setDate($actual
      ->getDate());
    $this
      ->assertEquals($expected, $actual);
  }

}