sblum-symfony--newsletter-manager-test.php

<?php

namespace Tests\Demo;

use Demo\MailerInterface;
use Demo\Message;
use Demo\NewsletterManager;

class NewsletterManagerTest extends \PHPUnit_Framework_TestCase
{
  public function testNewsletterManager()
  {
    $message = new Message('Test Betreff', 'Test-Inhalt Newsletter');
    $mailer = $this->prophesize(MailerInterface::class);
    $mailer->send('max@mustermann.de', $message)->shouldBeCalled();

    $newsletterManager = new NewsletterManager();
    $newsletterManager->setMailer($mailer->reveal());
    $newsletterManager->sendMail(['max@mustermann.de'], $message);
  }
}