public void GetLoanSummary()
{
// Arrange
LoanController controller = new LoanController(new Services.LoanService());
// Act
LoanSummaryDto result = controller.GetLoanSummary(50000, 19);
// Assert
Assert.IsNotNull(result);
Assert.AreEqual(1058, result.WeeklyPayment);
Assert.AreEqual(55016, result.TotalRepaid);
Assert.AreEqual(5016, result.TotalInterest);
}
public LoanSummaryDto GetLoanSummary(double amount, double apr, int period = 52)
{
LoanSummaryDto result = new LoanSummaryDto();
double interest = apr;
double rateOfInterest = interest / (period * 100);
double loanAmount = amount;
double weeklyRePaid = Math.Round(loanAmount * (rateOfInterest * Math.Pow((1 + rateOfInterest), period)) /
(Math.Pow((1 + rateOfInterest), period) - 1));
double totalRepaid = weeklyRePaid * period;
double totalInterest = totalRepaid - loanAmount;
result = new LoanSummaryDto
{
TotalInterest = totalInterest,
TotalRepaid = totalRepaid,
WeeklyPayment = weeklyRePaid
};
return(result);
}
