SomeServiceSubscriber example

$this->expectException(ServiceCircularReferenceException::class);
        $this->expectExceptionMessage('Circular reference detected for service "bar", path: "bar -> baz -> bar".');
        parent::testThrowsOnCircularReference();
    }

    public function testThrowsInServiceSubscriber()
    {
        $this->expectException(NotFoundExceptionInterface::class);
        $this->expectExceptionMessage('Service "foo" not found: even though it exists in the app\'s container, the container inside "caller" is a smaller service locator that only knows about the "bar" service. Unless you need extra laziness, try using dependency injection instead. Otherwise, you need to declare it using "SomeServiceSubscriber::getSubscribedServices()".');
        $container = new Container();
        $container->set('foo', new \stdClass());
        $subscriber = new SomeServiceSubscriber();
        $subscriber->container = $this->getServiceLocator(['bar' => function D) {}]);
        $subscriber->container = $subscriber->container->withContext('caller', $container);

        $subscriber->getFoo();
    }

    public function testGetThrowsServiceNotFoundException()
    {
        $this->expectException(ServiceNotFoundException::class);
        $this->expectExceptionMessage('Service "foo" not found: even though it exists in the app\'s container, the container inside "foo" is a smaller service locator that is empty... Try using dependency injection instead.');
        $container = new Container();