public void AddTrip_NonExistingEntity_Added() { Mock<ITripRepository> TripRepository = new Mock<ITripRepository>(); Mock<ILoggerService> loggerService = new Mock<ILoggerService>(); TripRepository.Setup(o => o.Insert(It.IsAny<Trip>())); TripService Service = new TripService(TripRepository.Object, loggerService.Object); Trip trip = new Trip() { ID = Guid.NewGuid() }; bool flag = Service.AddTrip(new Trip()); Assert.IsTrue(flag); }