public IActionResult Results(DogWalker dogWalker)
        {
            int days   = int.Parse(Request.Form["days"]);
            int profit = dogWalker.profitOverDays(days);

            return(View(dogWalker));
        }
        public void TextProfitOverDays()
        {
            var newWalker = new DogWalker();

            newWalker.rate           = 20;
            newWalker.hoursAvailable = 6;
            var actual = newWalker.profitOverDays(5);

            Assert.AreEqual(600, actual);
        }