public void AddNewAudioReturnsNewAudioWithId() { var audio = new AudioDTO { CategoryId = 1, Name = "Audio van een banaan", ImageUrl = "AudioUrl1", FragmentUrl = "FragmentUrl1" }; _audioServiceMock.Setup(service => service.Add(audio)).Returns(1); var toPost = new ResponseObject { Data = audio }; var result = (OkObjectResult)_controller.AddNewAudio(toPost); var responseObject = (ResponseObject)result.Value; Assert.Equal(_audio1, responseObject.Data); }