如何在功能測試測試電子郵件（Symfony2的）

Question

我試圖在功能測試，測試電子郵件...

我的源代碼是一樣的example of the cookbook，

控制器：

public function sendEmailAction($name) 
{ 
    $message = \Swift_Message::newInstance() 
     ->setSubject('Hello Email') 
     ->setFrom('send@example.com') 
     ->setTo('recipient@example.com') 
     ->setBody('You should see me from the profiler!') 
    ; 

    $this->get('mailer')->send($message); 

    return $this->render(...); 
} 

而且測試：

// src/Acme/DemoBundle/Tests/Controller/MailControllerTest.php 
use Symfony\Bundle\FrameworkBundle\Test\WebTestCase; 

class MailControllerTest extends WebTestCase 
{ 
    public function testMailIsSentAndContentIsOk() 
    { 
     $client = static::createClient(); 

     // Enable the profiler for the next request (it does nothing if the profiler is not available) 
     $client->enableProfiler(); 

     $crawler = $client->request('POST', '/path/to/above/action'); 

     $mailCollector = $client->getProfile()->getCollector('swiftmailer'); 

     // Check that an e-mail was sent 
     $this->assertEquals(1, $mailCollector->getMessageCount()); 

     $collectedMessages = $mailCollector->getMessages(); 
     $message = $collectedMessages[0]; 

     // Asserting e-mail data 
     $this->assertInstanceOf('Swift_Message', $message); 
     $this->assertEquals('Hello Email', $message->getSubject()); 
     $this->assertEquals('send@example.com', key($message->getFrom())); 
     $this->assertEquals('recipient@example.com', key($message->getTo())); 
     $this->assertEquals(
      'You should see me from the profiler!', 
      $message->getBody() 
     ); 
    } 
} 

但是我得到這個錯誤：

PHP Fatal error: Call to a member function getCollector() on a non-object

問題來源於此行：

什麼想法？

Answer 1

拋出異常，因爲如果探查器未啓用，getProfile()返回false。見here。

public function getProfile() 
{ 
    if (!$this->kernel->getContainer()->has('profiler')) { 
     return false; 
    } 

    return $this->kernel->getContainer()->get('profiler')->loadProfileFromResponse($this->response); 
} 

此外enableProfiler()僅啓用探查，如果它與又名啓用該服務容器註冊。見here。

public function enableProfiler() 
{ 
    if ($this->kernel->getContainer()->has('profiler')) { 
     $this->profiler = true; 
    } 
} 

現在您必須確保在測試環境中啓用了分析器。 （通常應該是default setting）

config_test.yml

framework: 
    profiler: 
     enabled: true 

您可以添加這樣的事情來測試：

$this->assertEquals($this->kernel->getContainer()->has('profiler'), true);