public void TestFinanaceCharges_WhereReturnValueIsAlwaysAValue(
decimal rate, int loan, int years)
{
var classobj = new FinanceCharge
{
Rate = rate,
LoanAmount = loan,
NumberOfYears = years
};
var result = this._calculator.PerformCalculation(classobj);
Assert.NotNull(result);
}
public CalculatedResult Calculation(int loanAmount, IEnumerable <FileData> investments)
{
//Total Payments
this.TotalPayments = CalculateTotalPayment(investments, loanAmount);
if (this.TotalPayments > 0)
{
//Interest
//Formula: I = P . R . T
var rate = new Rates
{
LoanAmount = loanAmount,
NumberOfYears = NumberOfYears,
TotalInterest = this.TotalPayments
};
this.Annualpercentagerate = this._calculator.PerformCalculation(rate);
//Finanace Charges
//Formula: FC = P x R x T
var financecharges = new FinanceCharge
{
Rate = this.Annualpercentagerate,
LoanAmount = loanAmount,
NumberOfYears = NumberOfYears
};
this.FinanceCharge = this._calculator.PerformCalculation(financecharges);
////Monthly Payments
////Formula: (P + FC) / T
var monthlypayments = new MonthlyPayment
{
LoanAmount = loanAmount,
NumberOfYears = NumberOfYears,
TotalInterest = this.TotalPayments
};
this.MonthlyPayments = this._calculator.PerformCalculation(monthlypayments);
return(new CalculatedResult
{
RequestedAmount = loanAmount,
Rate = this.Annualpercentagerate,
MonthlyRepayments = this.MonthlyPayments,
TotalRepayments = this.TotalPayments
});
}
return(default);