function ContainerAwareEventDispatcherTest::testAddSubscriberWithPriorities

File

core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php, line 413

Class

ContainerAwareEventDispatcherTest

Unit tests for the ContainerAwareEventDispatcher.

Namespace

Code

public function testAddSubscriberWithPriorities() {
  $eventSubscriber = new TestEventSubscriber();
  $this->dispatcher
    ->addSubscriber($eventSubscriber);
  $eventSubscriber = new TestEventSubscriberWithPriorities();
  $this->dispatcher
    ->addSubscriber($eventSubscriber);
  $listeners = $this->dispatcher
    ->getListeners('pre.foo');
  $this->assertTrue($this->dispatcher
    ->hasListeners(self::PREFOO));
  $this->assertCount(2, $listeners);
  $this->assertInstanceOf(TestEventSubscriberWithPriorities::class, $listeners[0][0]);
}