public function testServiceNameSubscriber()
{
$eventSubscriber = new StubEventSubscriber();
$container = $this->buildContainer(StubEventSubscriber::class);
$container->has(StubEventSubscriber::class)->willReturn(true);
$container->get(StubEventSubscriber::class)->willReturn($eventSubscriber);
$factory = new EventManagerFactory();
$eventManager = $factory($container->reveal());
$listeners = $eventManager->getListeners('foo');
$this->assertSame($eventSubscriber, array_pop($listeners));
}