Swift_MemorySpool::queueMessage PHP 메소드

    public function queueMessage(Swift_Mime_Message $message)
    {
        //clone the message to make sure it is not changed while in the queue
        $this->messages[] = clone $message;
        return true;
    }

 public function testEmbeddedImagesAreEmbedded()
 {
     $message = Swift_Message::newInstance()->setFrom('*****@*****.**')->setTo('*****@*****.**')->setSubject('test');
     $cid = $message->embed(Swift_Image::fromPath(__DIR__ . '/../../_samples/files/swiftmailer.png'));
     $message->setBody('<img src="' . $cid . '" />', 'text/html');
     $that = $this;
     $messageValidation = function (Swift_Mime_Message $message) use($that) {
         preg_match('/cid:(.*)"/', $message->toString(), $matches);
         $cid = $matches[1];
         preg_match('/Content-ID: <(.*)>/', $message->toString(), $matches);
         $contentId = $matches[1];
         $that->assertEquals($cid, $contentId, 'cid in body and mime part Content-ID differ');
         return true;
     };
     $failedRecipients = array();
     $transport = m::mock('Swift_Transport');
     $transport->shouldReceive('isStarted')->andReturn(true);
     $transport->shouldReceive('send')->with(m::on($messageValidation), $failedRecipients)->andReturn(1);
     $memorySpool = new Swift_MemorySpool();
     $memorySpool->queueMessage($message);
     $memorySpool->flushQueue($transport, $failedRecipients);
 }