MessengerPass example

->addTag('messenger.message_handler')
        ;
        $container
            ->register(MissingArgumentTypeHandler::class, MissingArgumentTypeHandler::class)
            ->addTag('messenger.message_handler', ['handles' => SecondMessage::class])
        ;
        $container
            ->register(DummyReceiver::class, DummyReceiver::class)
            ->addTag('messenger.receiver')
        ;

        (new MessengerPass())->process($container);

        $this->assertFalse($container->hasDefinition('messenger.middleware.debug.logging'));

        $handlersLocatorDefinition = $container->getDefinition($busId.'.messenger.handlers_locator');
        $this->assertSame(HandlersLocator::class, $handlersLocatorDefinition->getClass());

        $handlerDescriptionMapping = $handlersLocatorDefinition->getArgument(0);
        $this->assertCount(2, $handlerDescriptionMapping);

        $this->assertHandlerDescriptor($container, $handlerDescriptionMapping, DummyMessage::class, [DummyHandler::class]);
        $this->assertHandlerDescriptor($container, $handlerDescriptionMapping, SecondMessage::class, [MissingArgumentTypeHandler::class]);