Symfony / phpUnit：修改实体的表单的功能测试

Question

How would you do a functional test (not unit tests) of a form binded to an entity ?

Context

Let's say you have an entity "Car", with a field "id" and another field "numberPlate", and a page to edit data about a car.

CarController.php :

//...

public function imsiDetailsChangeAction(Request $request)
{
  $car_id = $request->get('car_id');
  $car = $this->getDoctrine()->getRepository('ClnGsmBundle:Car')->Find($car_id);

  if ($simCard != null)
  {
    $form = $this->createForm(new CarType()), $car);

    if($request->isMethod('POST'))
    {
      $form->bind($request);

      if ($form->isValid())
      {
        $em = $this->getDoctrine()->getManager();
        $em->flush();

        return $this->redirect($this->generateUrl('car_view', array('car_id' => $car->getId())));
      }
    }
  }
  else
  {
    throw new NotFoundHttpException();
  }

  return $this->render('SiteBundle:Car:carEdit.html.twig', array('car' => $car, 'form' => $form->createView()));
}

//...

What I want

A test using phpUnit doing the following :

• create a Car entity with the numberPlate "QWE-456"

• load the page with the form

• using the crawler, replace the numberPlate with "AZE-123" in the form, and submit the form

• assert that my car entity's numberPlate now equals "AZE-123"

What I tried

(just in case: my own code is a bit different, here is what I would do with the car example)

CarControllerTest.php :

//...

public function SetUp()
{
  //start kernel, stores entity manager in $this->em and client in $this->client
}

//...

public function testEditForm()
{
  $car = new Car();
  $car->setNumberPlate("QWE-456");

  $this->entityManager->persist($simCard);
  $this->em->flush();

  $crawler = $this->client->request('GET', '/fr/Car/edit/'.$car->getId());
  $this->assertEquals(200, $this->client->getResponse()->getStatusCode());

  $formNode = $crawler->filterXpath("//div[@id='main']//form");
  $form = $formNode->form(array(
    'car[plateNumber]'=>'AZE-123',
  ));

  //var_dump($car->getPlateNumber());
  $this->client->submit($form);
  //var_dump($car->getPlateNumber());
  $this->assertEquals('AZE-123',$car->getPlateNumber);
}

I expect this test to pass, and the second var_dump to print "AZE-123" instead of "QWE-456". But my entity isn't modified.

How should I do this ?

Answer 1

You should refresh the data reloading it from the database: the refresh method do it for you, so try this:

  $this->client->submit($form);

  $this->em->refresh($car);

  $this->assertEquals('AZE-123',$car->getPlateNumber);

I suggest you to check before the HTTP Response in order to verify the correct interaction, as example:

    $response = $this->client->getResponse();
    $this->assertTrue($response->isRedirection());

Hope this help