使用 Doctrine 在 Symfony2 中测试控制器

Is there a nice way to write unit/integration tests for these controller actions without polluting the production database? Do I have to work with different environments - or is there a proposed way from the framework vendor for this?

当前控制器示例:

public function postAction()
{
    $json = $this->getRequest()->getContent();
    $params = json_decode($json);
    $name = $params->name;
    $description = $params->description;

    $sandbox = new Sandbox();
    $sandbox->setName($name);
    $sandbox->setDescription($description);
    $em = $this->getDoctrine()->getManager();
    $em->persist($sandbox);
    $em->flush();

    $response = new Response('/sandbox/'.$sandbox->getId());
    $response->setStatusCode(201);
    return $response;
}

当前测试示例:

class SandboxControllerTest extends WebTestCase
{

    public function testRest()
    {
        $client = static::createClient();

        $crawler = $client->request('POST', '/service/sandbox', array(), array(), array(), json_encode(array('name' => 'TestMe', 'description' => 'TestDesc')));

        $this->assertEquals(
                201, $client->getResponse()->getStatusCode()
        );
    }
}

推荐答案

在我看来，你绝对应该避免在测试中更改数据库.

public function testRest()
{
    // create entity manager mock
    $entityManagerMock = $this->getMockBuilder('DoctrineORMEntityManager')
        ->setMethods(array('persist', 'flush'))
        ->disableOriginalConstructor()
        ->getMock();

    // now you can get some assertions if you want, eg.:
    $entityManagerMock->expects($this->once())
        ->method('flush');

    // next you need inject your mocked em into client's service container
    $client = static::createClient();
    $client->getContainer()->set('doctrine.orm.default_entity_manager', $entityManagerMock);

    // then you just do testing as usual
    $crawler = $client->request('POST', '/service/sandbox', array(), array(), array(), json_encode(array('name' => 'TestMe', 'description' => 'TestDesc')));

    $this->assertEquals(
            201, $client->getResponse()->getStatusCode()
    );
}