function ContainerAwareEventDispatcherTest::testDispatchByPriority

Same name in other branches
  1. 8.9.x core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest::testDispatchByPriority()
  2. 10 core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest::testDispatchByPriority()
  3. 11.x core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest::testDispatchByPriority()

File

core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php, line 380

Class

ContainerAwareEventDispatcherTest
Unit tests for the ContainerAwareEventDispatcher.

Namespace

Drupal\Tests\Component\EventDispatcher

Code

public function testDispatchByPriority() {
    $invoked = [];
    $listener1 = function () use (&$invoked) {
        $invoked[] = '1';
    };
    $listener2 = function () use (&$invoked) {
        $invoked[] = '2';
    };
    $listener3 = function () use (&$invoked) {
        $invoked[] = '3';
    };
    $this->dispatcher
        ->addListener('pre.foo', $listener1, -10);
    $this->dispatcher
        ->addListener('pre.foo', $listener2);
    $this->dispatcher
        ->addListener('pre.foo', $listener3, 10);
    $this->dispatcher
        ->dispatch(new Event(), self::PREFOO);
    $this->assertEquals([
        '3',
        '2',
        '1',
    ], $invoked);
}

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