public void Test_AnyAdditionalPaymentsIsNotNull(double principle, double interestRate, double loanLengthInYears, double expected)
{
Loan loan = new Loan(principle, interestRate, loanLengthInYears);
loan.AdditionalPayments = new System.Collections.Generic.List <AdditionalPayment>();
OneTimePayment oneTimePayment = new OneTimePayment();
loan.AdditionalPayments.Add(oneTimePayment);
Assert.IsNotNull(loan.AdditionalPayments);
}
public void Test_OneTimePaymentHasCorrectInterestTotal(double principle, double interestRate, double loanLengthInYears, int months, double payment, double expected)
{
Loan loan = new Loan(principle, interestRate, loanLengthInYears);
loan.AdditionalPayments = new System.Collections.Generic.List <AdditionalPayment>();
OneTimePayment oneTimePayment = new OneTimePayment(DateTime.Now.AddMonths(months), payment);
loan.AdditionalPayments.Add(oneTimePayment);
loan.calculateAmmoritazation();
double calculatedTotalInterest = loan.TotalInterest;
Assert.That(calculatedTotalInterest, Is.EqualTo(expected).Within(.5));
}
