function ContainerAwareEventDispatcherTest::testHasListenersWhenAddedCallbackListenerIsRemoved

File

core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php, line 490

Class

ContainerAwareEventDispatcherTest

Unit tests for the ContainerAwareEventDispatcher.

Namespace

Code

public function testHasListenersWhenAddedCallbackListenerIsRemoved() {
  $listener = function () {
  };
  $this->dispatcher
    ->addListener('foo', $listener);
  $this->dispatcher
    ->removeListener('foo', $listener);
  $this->assertFalse($this->dispatcher
    ->hasListeners());
}