@Test
public void sendingCoffeeServedShouldIncreaseCoffeeCount() {

    new JavaTestKit(system) {{
        ActorRef guest = system.actorOf(Guest.props(system.deadLetters(), new Coffee.Akkaccino()));
        interceptInfoLogMessage(this, ".*[Ee]njoy.*1\\.*", 1, () -> {
            guest.tell(new Waiter.CoffeeServed(new Coffee.Akkaccino()), ActorRef.noSender());
        });
    }};
}