public async Task TestEditIngredientToItem() { var options = new DbContextOptionsBuilder <ApplicationDbContext>() .UseInMemoryDatabase(Guid.NewGuid().ToString()); var ingredientrRepository = new EfRepository <Ingredient>(new ApplicationDbContext(options.Options)); var itemRepository = new EfRepository <Item>(new ApplicationDbContext(options.Options)); ingredientrRepository.AddAsync(new Ingredient { Name = "Eggs", Quantity = 5 }).GetAwaiter().GetResult(); ingredientrRepository.SaveChangesAsync().GetAwaiter().GetResult(); itemRepository.AddAsync(new Item { Name = "Meatball" }).GetAwaiter().GetResult(); itemRepository.SaveChangesAsync().GetAwaiter().GetResult(); var item = itemRepository.All().Where(x => x.Name == "Meatball").FirstOrDefault(); var ingredient = ingredientrRepository.All().Where(x => x.Name == "Eggs").FirstOrDefault(); var ingredientService = new IngredientService(itemRepository, ingredientrRepository); //AutoMapperConfig.RegisterMappings(typeof(MyTestIngredient).Assembly); await ingredientService.AddIngredientToItem(ingredient.Name, ingredient.Quantity, item.Name); await ingredientService.EditIngredientToItem("Milk", 10, item.Name, 1); Assert.Equal(10, ingredient.Quantity); Assert.Equal("Milk", ingredient.Name); ingredientrRepository.Delete(ingredient); }