Don't pull your dependencies 4

DependencyPullerTest.php

    public function testDoSomething()
    {
        $logger = $this->getMockBuilder('Symfony\\Bridge\\Monolog\\Logger')
          ->disableOriginalConstructor()
          ->getMock();

        $mailer = $this->getMockBuilder('Swift_Mailer')
          ->disableOriginalConstructor()
          ->getMock();

        $container = new Container();
        $container->set('logger', $logger);
        $container->set('mailer', $mailer);

        $puller = new DependencyPuller($container);
        $result = $puller->doSomething();

        $this->assertTrue($result);
    }