public function ContainerAwareEventDispatcherTest::testRemoveListener in Drupal 10

Same name and namespace in other branches

1. 8 core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest::testRemoveListener()
2. 9 core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest::testRemoveListener()

File

core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php, line 356

Class

ContainerAwareEventDispatcherTest

Unit tests for the ContainerAwareEventDispatcher.

Namespace

Drupal\Tests\Component\EventDispatcher

Code

public function testRemoveListener() {
  $this->dispatcher
    ->addListener('pre.bar', $this->listener);
  $this
    ->assertTrue($this->dispatcher
    ->hasListeners(self::PREBAR));
  $this->dispatcher
    ->removeListener('pre.bar', $this->listener);
  $this
    ->assertFalse($this->dispatcher
    ->hasListeners(self::PREBAR));
  $this->dispatcher
    ->removeListener('notExists', $this->listener);
}