spec\BigName\EventDispatcher\DispatcherSpec::it_allows_to_add_listeners PHP Метод

    function it_allows_to_add_listeners(Listener $listener)
    {
        $this->addListener('EventName', $listener);
        $this->hasListeners('EventName')->shouldReturn(true);
        $this->addListener('OtherEventName', $listener);
        $this->hasListeners('OtherEventName')->shouldReturn(true);
    }