private void MethodPostExerciseAddsExerciseInRepo() { //Setup repo Mock _exerciseServiceMock.Setup(service => service.Add(_exerciseDTO1)); ResponseObject response = new ResponseObject { Data = _exerciseDTO1 }; //Check if controller return Ok-response var actionResult = _controller.PostExercise(response); Assert.IsType <OkObjectResult>(actionResult); Assert.Equal(_exerciseDTO1, response.Data); //Check if Add-method is called in controller _exerciseServiceMock.Verify(service => service.Add(_exerciseDTO1), Times.Once); }