public function testAddRemoveSubscriber() { $dispatcher = new EventDispatcher(); $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch()); $subscriber = new EventSubscriber(); $tdispatcher->addSubscriber($subscriber); $listeners = $dispatcher->getListeners('foo'); $this->assertCount(1, $listeners); $this->assertSame(array($subscriber, 'call'), $listeners[0]); $tdispatcher->removeSubscriber($subscriber); $this->assertCount(0, $dispatcher->getListeners('foo')); }