function ContainerAwareEventDispatcherTest::testStopEventPropagation

File

core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php, line 335

Class

ContainerAwareEventDispatcherTest

Unit tests for the ContainerAwareEventDispatcher.

Namespace

Code

public function testStopEventPropagation() : void {
  $otherListener = new TestEventListener();
  // postFoo() stops the propagation, so only one listener should
  // be executed
  // Manually set priority to enforce $this->listener to be called first
  $this->dispatcher
    ->addListener('post.foo', [
    $this->listener,
    'postFoo',
  ], 10);
  $this->dispatcher
    ->addListener('post.foo', [
    $otherListener,
    'postFoo',
  ]);
  $this->dispatcher
    ->dispatch(new Event(), self::POST_FOO);
  $this->assertTrue($this->listener->postFooInvoked);
  $this->assertFalse($otherListener->postFooInvoked);
}