public void AddFacility_ValidModel_ReturnId(int siteId, int facilityId) { var newItem = new Facility { Id = facilityId, SiteId = siteId }; //act var service = new SiteService(_siteRepository.Object, _facilityRepository.Object, _logger.Object); var returnId = service.AddFacility(siteId, newItem); //assert Assert.Equal(facilityId, returnId); Assert.NotEqual(0, newItem.Id); Assert.NotEqual(DateTime.MinValue, newItem.Created); Assert.True(_facilityData.Count == 2); }