ContainerAwareEventDispatcher example

/** * {@inheritdoc} */
  protected function tearDown(): void {
    $this->dispatcher = NULL;
    $this->listener = NULL;
  }

  protected function createEventDispatcher() {
    $container = new Container();

    return new ContainerAwareEventDispatcher($container);
  }

  public function testGetListenersWithCallables() {
    // When passing in callables exclusively as listeners into the event     // dispatcher constructor, the event dispatcher must not attempt to     // resolve any services.     $container = $this->getMockBuilder(ContainerInterface::class)->getMock();
    $container->expects($this->never())->method($this->anything());

    $firstListener = new CallableClass();
    $secondListener = function D) {

    };