public void Calculate_Validates_Input(string controllerInput)
        {
            var mockRepository = new Mock <IReverseCaptchaService>();

            var controller = new ReverseCaptchaController(mockRepository.Object);

            var controllerResult = controller.Calculate(controllerInput);

            ControllerTestHelper <ReverseCaptchaResponse> .BadRequestResult(controllerResult);
        }
        private ReverseCaptchaResponse SuccessfulCalculate(ReverseCaptchaController controller, string input)
        {
            var controllerResult = controller.Calculate(input);

            return(ControllerTestHelper <ReverseCaptchaResponse> .Successful(controllerResult));
        }