public static bool Validate(PaymentScheduleOptions value)
{
Type enumType = value.GetType();
bool valid = Enum.IsDefined(enumType, value);
return(valid);
}
public PaymentCalculator(GetPaymentAmountInput input, double interestRate)
{
this.AskingPrice = input.AskingPrice;
this.DownPayment = input.DownPayment;
this.PaymentSchedule = input.PaymentSchedule;
this.AmortizationPeriod = input.AmortizationPeriod;
this.InterestRate = interestRate;
// Make sure the incoming parameters make sense
this.Validate();
}
public void TestInvalidLengths()
{
// Valid lengths of mortgages is >5 years and <25
PaymentScheduleOptions periodPerYear = PaymentScheduleOptions.monthly;
Assert.False(ValidateValidMortgageLength.Validate(1 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(4 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(30 * (int)periodPerYear, periodPerYear));
periodPerYear = PaymentScheduleOptions.weekly;
Assert.False(ValidateValidMortgageLength.Validate(1 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(4 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(30 * (int)periodPerYear, periodPerYear));
periodPerYear = PaymentScheduleOptions.biweekly;
Assert.False(ValidateValidMortgageLength.Validate(1 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(4 * (int)periodPerYear, periodPerYear));
Assert.False(ValidateValidMortgageLength.Validate(30 * (int)periodPerYear, periodPerYear));
}
public static bool Validate(int amortizationPeriod, PaymentScheduleOptions paymentSchedule)
{
double years = amortizationPeriod / (double)paymentSchedule;
return(years >= 5.0 && years <= 25.0);
}
