public void SimpleDiscountTest()
{
double amount = SimpleDiscount.GetPresentValue(principal, rate, time);
double discount = SimpleDiscount.GetDiscount(principal, rate, time);
Assert.AreEqual(principal, SimpleDiscount.GetFutureValue(amount, rate, time));
Assert.AreEqual(time, SimpleDiscount.GetTime(discount, principal, rate));
Assert.AreEqual(rate, SimpleDiscount.GetRate(discount, principal, time));
double amountRational = SimpleDiscount.GetPresentValueRational(principal, rate, time);
double discountRational = SimpleDiscount.GetDiscountRational(principal, rate, time);
Assert.AreEqual(principal, SimpleDiscount.GetFutureValueRational(amountRational, rate, time));
Assert.AreEqual(time, SimpleDiscount.GetTimeRational(principal, amountRational, rate));
Assert.AreEqual(rate, SimpleDiscount.GetRateRational(principal, amountRational, time));
}
