public async void TestDelete() { //Arrange var dto = new Entry { Name = "DELETE TEST", PhoneNumber = "0833452693", PhoneBookId = 1, }; _context.Add(dto); await _context.SaveChangesAsync(); //Act var result = await _controller.DeleteEntry(dto.Id); var value = result.GetValue <OkObjectResult, Entry>(); var check = _context.Entries .FirstOrDefault(e => e.Id == value.Id); //Assert Assert.Null(check); }