Question

Given the following

class Event{
}

class SpecialEvent extends Event{

}

class OtherEvent extends Event{

}

class EventPublisher{
   public publish(Event e){
   }
}

@test
testBlah{
   myService = new MyService();

   mockEvent = createMock(EventPublisher)
   mySercice.setEventPublisher(mockEvent);
   mockEvent.publish(anyObject(SpecialEvent.class));
   expectLastCall.once();
   replay(mockEvent);
   myServce.doSomethingThatCauesesSpecialEventToBePublished();
   verify(mockEvent);
}

If myService.doSomething…. Publishes an event that is NOT SpecialEvent.class it does not fail the test as long as the event extends from Event. Is there a way to ensure that this fails?

Answer 1

anyObject will match any object – the class just changes the return type. I suspect you want isA:

mockEvent.publish(isA(SpecialEvent.class));