public void calculate_accrued_amount()
{
var calculator = new CompoundInterestCalculator();
var fv = calculator.AccruedAmount(1000, 0.07, 12, 3);
Assert.AreEqual(fv, 1232.92, 0.009);
}
public void calculate_rate()
{
var calculator = new CompoundInterestCalculator();
var r = calculator.Rate(1000, 1233.07, 12, 3);
Assert.AreEqual(r, 7.0, 0.01);
}
public void ShouldReturnCorrectValueAfterOneYear()
{
// Arrange
double principal = 100000;
double interestRate = .06d;
int timesPerYear = 1;
double years = 1;
var expeted = 106000;
// Act
var actual = CompoundInterestCalculator.Calculate(principal, interestRate, timesPerYear, years);
// Assert
Assert.AreEqual(expeted, actual);
}
public decimal YearToDateInterestEarned()
{
decimal startingBalance = 0;
decimal interestRate = InterestRate;
var intTrans = new List <InterestTransaction>();
foreach (var t in Transactions)
{
var intTx = new InterestTransaction(t.TransactionDate, t.Amount);
intTrans.Add(intTx);
}
decimal interest = CompoundInterestCalculator.CalculateYearToDateInterest(startingBalance, interestRate, intTrans.ToArray());
return(Math.Round(interest, 2));
}
public void CalculateAmountSavedTest()
{
//Arrange
CompoundInterestCalculator calculator = new CompoundInterestCalculator()
{
Principal = 1000.00,
NumberOfYears = 12,
InterestRate = 1.5
};
//Act
double result = calculator.CalculateAmountSaved();
//Assert
Assert.AreEqual(1195.62, result);
}
public void FutureBalance_1YearForward_ExpectsCorrectFutureBalance()
{
//Setup
var name = "Savings Account 1";
var balance = 12.20m;
var expectedRateOfReturn = 0.10m;
var contributionAmount = 100m;
DateTime targetDate = DateTime.Now.AddYears(1);
decimal expectedFutureBalance = CompoundInterestCalculator.Calculate(balance, expectedRateOfReturn, 12,
CompoundInterestCalculator.FutureDateTimeToYears(targetDate), contributionAmount);
//Test
Account account = new Account(name, balance, expectedRateOfReturn, contributionAmount);
//Assertion
account.FutureBalance(targetDate).Should().Be(expectedFutureBalance);
}
public IActionResult Index(CompoundInterestCalculator model)
{
SetViewBagValues();
if (!ModelState.IsValid)
{
return(View());
}
String compoundFrequency = model.SelectedCompoundedFrequency;
switch (compoundFrequency)
{
case "Daily": model.CompoundFrequencyPerYear = 365;
break;
case "Weekly": model.CompoundFrequencyPerYear = 52;
break;
case "Fortnightly": model.CompoundFrequencyPerYear = 26;
break;
case "Monthly": model.CompoundFrequencyPerYear = 12;
break;
case "Quarterly": model.CompoundFrequencyPerYear = 4;
break;
case "SemiAnnually": model.CompoundFrequencyPerYear = 2;
break;
case "Yearly": model.CompoundFrequencyPerYear = 1;
break;
}
model.TotalAccrued = model.CalculateAccruedAmount();
return(View(model));
}