spec\Mdb\PayPal\Ipn\Event\MessageVerificationFailureEventSpec::it_should_be_an_event PHP Метод

    function it_should_be_an_event()
    {
        $this->shouldHaveType('Symfony\\Component\\EventDispatcher\\Event');
        $this->shouldHaveType('Mdb\\PayPal\\Ipn\\Event\\MessageVerificationEvent');
    }