public function testPublish()
 {
     $this->commandEventDispatcher->subscribe(new TestEventSubscriber());
     $event = new TestEvent();
     $this->eventDispatcher->expects($this->once())->method('publish')->willReturn($event);
     $return = $this->commandEventDispatcher->publish($event);
     $this->assertEquals($event, $return);
 }
 /**
  * @param EventSubscriberInterface $subscriber
  */
 public function subscribe(EventSubscriberInterface $subscriber)
 {
     $this->eventDispatcher->subscribe($subscriber);
 }