public void GetAllVenue() { Mock <ISeatService> mockSeatService = new Mock <ISeatService>(); Mock <ITMLayoutService> mockTMLayoutService = new Mock <ITMLayoutService>(); Mock <IAreaService> mockAreaService = new Mock <IAreaService>(); Mock <IVenueRepository> mockVenueRepository = new Mock <IVenueRepository>(); VenueService venueService = new VenueService(mockVenueRepository.Object, mockTMLayoutService.Object, mockAreaService.Object, mockSeatService.Object); List <VenueDto> venues = venueService.GetAllVenue(); venues.Should().NotBeNull(); }