public static void Main(string[] args)
{
if (args.Length < 2)
{
Console.WriteLine(UsageMessage);
Environment.Exit(1);
}
int requestedAmount;
int.TryParse(args[1], out requestedAmount);
try
{
var stringFileName = args[0];
var lendRateCalculator = OptimalLendRateCalculatorFactory.GetOptimalLendRateCalculator(stringFileName, requestedAmount);
var calculatedRate = lendRateCalculator.GetOptimalLendRateInformation();
Console.WriteLine(calculatedRate.ToString());
}
catch (InvalidLoanRequest ilr)
{
Console.WriteLine(ilr.Message);
}
catch (InsufficientFundsException isfe)
{
Console.WriteLine(isfe.Message);
}
}
public void Test3_ValidRequestAmount_EqualToValue(int requestAmount)
{
var filePath = TestContext.CurrentContext.TestDirectory + @"\TestData\test_data_1.csv";
Assert.DoesNotThrow(
() => OptimalLendRateCalculatorFactory.GetOptimalLendRateCalculator(filePath, requestAmount),
string.Format("Requested amount: {0} , should not throw an InvalidLoanRequest exception!", requestAmount));
}
public void Test1_CalculatLendRate()
{
var filePath = TestContext.CurrentContext.TestDirectory + @"\TestData\test_data_1.csv";
var requestAmount = 1100;
var optimalLendRateCalculator = OptimalLendRateCalculatorFactory.GetOptimalLendRateCalculator(filePath, requestAmount);
var oRate = optimalLendRateCalculator.GetOptimalLendRateInformation();
Assert.IsNotNull(oRate);
Assert.AreEqual(oRate.OptimumLendRate, oRate.OptimumLendRate);
}
public void Test4_CalculatedOptimalLendRate()
{
var requestAmount = 1100;
var filePath = TestContext.CurrentContext.TestDirectory + @"\TestData\test_data_1.csv";
var calculator = OptimalLendRateCalculatorFactory.GetOptimalLendRateCalculator(filePath, requestAmount);
var oRate = calculator.GetOptimalLendRateInformation();
Assert.IsNotNull(oRate);
var outputString = "Rate: 7.0%\nMonthly repayment: £37.73\nTotal repayment: £1,358.21\n";
Assert.AreEqual(outputString, oRate.ToString(), "ToString doesn't seem right!");
}
