void ReturnDummy()
        {
            double pay = MortgageCalculator.CalculatesMortgageTime(10000, 0.045, 5, 3);

            output.WriteLine(pay.ToString(CultureInfo.InvariantCulture));
            Assert.True(true);
        }
        void CalculateMortgageTest()
        {
            double paymentExpected = 506.69;
            double paymentGenered  = MortgageCalculator.CalculatesMortgageTime(100000, 0.045, 30, 1);

            Assert.Equal(paymentExpected, Math.Round(paymentGenered, 2));
        }