public void GetTourById_ValueReturned() { mock.Setup(m => m.Tours.GetAll()).Returns(tours); mock.Setup(m => m.Tours.Get(1)).Returns(tours.ElementAt(0)); var mapper = new MapperConfiguration(cfg => cfg.CreateMap <Tour, TourDTO>()).CreateMapper(); TourService service = new TourService(mock.Object); //ISerialize<TourDTO> serialize = new TourSerialize(); //string example = serialize.serializeVary(mapper.Map<Tour, TourDTO>(tours.ElementAt(0))); TourDTO data = service.GetTour(1); Assert.IsNotNull(data); }