public ActionResult <GetPaymentAmountResult> GetPaymentAmount([FromBody] GetPaymentAmountInput input)
{
var interestRate = new InterestRate(this.Configuration);
var paymentCalculator = new PaymentCalculator(input, interestRate.Rate);
return(new GetPaymentAmountResult {
PaymentAmount = paymentCalculator.Calculate()
});
}
public void VerifyArgumentIsNullScenario()
{
//Arrange
var calculator = new PaymentCalculator();
//Act
Action result = () => calculator.Calculate(null);
//Assert
Assert.Throws <ArgumentNullException>(result);
}
public void VerifyNegativeScenarious(LoanDetails input)
{
//Arrange
var calculator = new PaymentCalculator();
//Act
Action result = () => calculator.Calculate(input);
//Assert
Assert.Throws <ArgumentException>(result);
}
public ActionResult <CalculatedPayment> calculatePayment(double Amount, double Rate, int Years)
{
return(new CalculatedPayment {
Amount = Amount,
Rate = Rate,
Years = Years,
Count = _HitCountService.GetAndIncrement(),
Instance = Environment.GetEnvironmentVariable("CF_INSTANCE_INDEX"),
Payment = _PaymentCalculator.Calculate(Amount, Rate, Years)
});
}
public ActionResult <CalculatedPayment> calculatePayment(double Amount, double Rate, int Years)
{
return(new CalculatedPayment {
Amount = Amount,
Rate = Rate,
Years = Years,
Count = _HitCountService.GetAndIncrement(),
Instance = _ApplicationOptions.InstanceIndex.ToString(),
Payment = _PaymentCalculator.Calculate(Amount, Rate, Years)
});
}
public void VerifyPositiveScenarious(LoanDetails input, PaymentDetails output)
{
//Arrange
var calculator = new PaymentCalculator();
//Act
var result = calculator.Calculate(input);
//Assert
Assert.NotNull(result);
Assert.Equal(output.MonthlyPayment, result.MonthlyPayment);
Assert.Equal(output.TotalInterest, result.TotalInterest);
Assert.Equal(output.TotalPayment, result.TotalPayment);
}
public void TestAnotherPaymentCalculation()
{
GetPaymentAmountInput testInput = new GetPaymentAmountInput
{
AskingPrice = 360000.00,
DownPayment = 72000.00,
PaymentSchedule = PaymentScheduleOptions.monthly,
AmortizationPeriod = 300
};
var paymentCalculator = new PaymentCalculator(testInput, 0.025);
var paymentAmount = paymentCalculator.Calculate();
Assert.Equal <double>(1292.0161941406197, paymentAmount);
}
public void TestPaymentCalculation()
{
GetPaymentAmountInput testInput = new GetPaymentAmountInput
{
AskingPrice = 750000.00,
DownPayment = 158000.00,
PaymentSchedule = PaymentScheduleOptions.monthly,
AmortizationPeriod = 240
};
var paymentCalculator = new PaymentCalculator(testInput, 0.025);
var paymentAmount = paymentCalculator.Calculate();
Assert.Equal <double>(3137.0251267506815, paymentAmount);
}
public ActionResult <CalculatedPayment> calculatePayment(double Amount, double Rate, int Years)
{
var Payment = PaymentCalculator.Calculate(Amount, Rate, Years);
_logger.LogDebug("Calculated payment of {Payment} for input amount: {Amount}, rate: {Rate}, years: {Years}",
Payment, Amount, Rate, Years);
return(new CalculatedPayment
{
Amount = Amount,
Rate = Rate,
Years = Years,
Instance = AppOptions.InstanceIndex.ToString(),
Count = HitCountService.GetAndIncrement(),
Payment = Payment
});
}
