public ActionResult <GetMortgageAmountResult> GetMortgageAmount([FromBody] GetMortgageAmountInput input)
{
var interestRate = new InterestRate(this.Configuration);
var mortgageAmountCalculator = new MortgageAmountCalculator(input, interestRate.Rate);
return(new GetMortgageAmountResult {
PaymentAmount = mortgageAmountCalculator.Calculate()
});
}
public MortgageAmountCalculator(GetMortgageAmountInput input, double interestRate)
{
this.PaymentAmount = input.PaymentAmount;
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 TestAnotherMortgageCalculation()
{
GetMortgageAmountInput testInput = new GetMortgageAmountInput
{
PaymentAmount = 1292.0161941406197,
DownPayment = 72000.00,
PaymentSchedule = PaymentScheduleOptions.monthly,
AmortizationPeriod = 300
};
var paymentCalculator = new MortgageAmountCalculator(testInput, 0.025);
var mortgageAmount = paymentCalculator.Calculate();
Assert.Equal <double>(360000.00, mortgageAmount);
}
public void TestMortgageCalculation()
{
GetMortgageAmountInput testInput = new GetMortgageAmountInput
{
PaymentAmount = 3137.0251267506815,
DownPayment = 158000.00,
PaymentSchedule = PaymentScheduleOptions.monthly,
AmortizationPeriod = 240
};
var paymentCalculator = new MortgageAmountCalculator(testInput, 0.025);
var mortgageAmount = paymentCalculator.Calculate();
Assert.Equal <double>(750000.0, mortgageAmount);
}