Adds a service as event listener
| public addListenerService ( string $eventName, array $callback, integer $priority ) | ||
| $eventName | string | Event for which the listener is added |
| $callback | array | The service ID of the listener service & the method name that has to be called |
| $priority | integer | The higher this value, the earlier an event listener will be triggered in the chain. Defaults to 0. |
public function testReEnteringAScope()
{
$event = new Event();
$service1 = $this->getMock('Symfony\\Bundle\\FrameworkBundle\\Tests\\Service');
$service1->expects($this->exactly(2))->method('onEvent')->with($event);
$scope = new Scope('scope');
$container = new Container();
$container->addScope($scope);
$container->enterScope('scope');
$container->set('service.listener', $service1, 'scope');
$dispatcher = new ContainerAwareEventDispatcher($container);
$dispatcher->addListenerService('onEvent', array('service.listener', 'onEvent'));
$dispatcher->dispatch('onEvent', $event);
$service2 = $this->getMock('Symfony\\Bundle\\FrameworkBundle\\Tests\\Service');
$service2->expects($this->once())->method('onEvent')->with($event);
$container->enterScope('scope');
$container->set('service.listener', $service2, 'scope');
$dispatcher->dispatch('onEvent', $event);
$container->leaveScope('scope');
$dispatcher->dispatch('onEvent');
}
public function testRemoveBeforeDispatch()
{
$event = new Event();
$service = $this->getMock('Symfony\\Bundle\\FrameworkBundle\\Tests\\Service');
$container = new Container();
$container->set('service.listener', $service);
$dispatcher = new ContainerAwareEventDispatcher($container);
$dispatcher->addListenerService('onEvent', array('service.listener', 'onEvent'));
$dispatcher->removeListener('onEvent', array($container->get('service.listener'), 'onEvent'));
$this->assertFalse($dispatcher->hasListeners('onEvent'));
}
public function testGetListenersOnLazyLoad()
{
$event = new Event();
$service = $this->getMock('Symfony\\Bundle\\FrameworkBundle\\Tests\\Service');
$container = new Container();
$container->set('service.listener', $service);
$dispatcher = new ContainerAwareEventDispatcher($container);
$dispatcher->addListenerService('onEvent', array('service.listener', 'onEvent'));
$listeners = $dispatcher->getListeners();
$this->assertTrue(isset($listeners['onEvent']));
$this->assertEquals(1, count($dispatcher->getListeners('onEvent')));
}
