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());
}