public void TestMultipleLoanCalculation()
{
MarketRate rate = new MarketRate {
AmountAvailable = 1000, Lender = "Alice", Rate = (float)0.07
};
MarketRate rate1 = new MarketRate {
AmountAvailable = 1000, Lender = "Bob", Rate = (float)0.07
};
MarketRate rate2 = new MarketRate {
AmountAvailable = 1000, Lender = "Charlie", Rate = (float)0.07
};
List <MarketRate> rates = new List <MarketRate>();
rates.Add(rate);
rates.Add(rate1);
rates.Add(rate2);
LoanAggregator agg = new LoanAggregator();
agg.FindLoans(rates, 3000, 36);
Assert.AreEqual(true, agg.IsLoanPossible);
Assert.AreEqual(3000, agg.LoanAmount, "LoanAmount check failed");
Assert.AreEqual("92.63", agg.Monthly, "MonthlyPayments check failed");
Assert.AreEqual("3,334.70", agg.Total, "TotalRepayment check failed");
Assert.AreEqual((float)0.07, agg.Rate, "Rate check failed");
}
static void Main(string[] args)
{
// Parse command line
string marketFile = "";
int loanAmount = 0;
const int loanDuration = 36; // Not parameterised for the purposes of this test
if (!parseCommandLine(args, ref marketFile, ref loanAmount))
{
Console.WriteLine("Usage: zopa <location of market rate file> <requested loan amount>");
return;
}
Console.WriteLine("Processing market file " + marketFile + " for a loan of " + loanAmount.ToString());
// Process market file
MarketRateCsvParser parser = new MarketRateCsvParser();
List <MarketRate> marketRates;
StreamReader marketStream = new System.IO.StreamReader(marketFile);
marketRates = parser.Parse(marketStream);
// Pass this to the loan aggregator to compute the loans
LoanAggregator loanAgg = new LoanAggregator();
loanAgg.FindLoans(marketRates, loanAmount, loanDuration);
// Finally, output the results
Console.WriteLine("Requested Amount: " + loanAgg.LoanAmount.ToString("c2"));
Console.WriteLine("Rate: " + (loanAgg.Rate * 100).ToString("n1") + "%");
Console.WriteLine("Monthly Repayment: " + loanAgg.MonthlyPayments.ToString("c2"));
Console.WriteLine("Total Replayment: " + loanAgg.TotalRepayment.ToString("c2"));
}
public void TestMixedRateChosen()
{
MarketRate rate = new MarketRate {
AmountAvailable = 100, Lender = "Bob", Rate = (float)0.07
};
List <MarketRate> rates = new List <MarketRate>();
rates.Add(rate);
LoanAggregator agg = new LoanAggregator();
agg.FindLoans(rates, 50, 36);
Assert.AreEqual(true, agg.IsLoanPossible);
}
public void TestInsufficientLoans()
{
MarketRate rate = new MarketRate {
AmountAvailable = 100, Lender = "Bob", Rate = (float)0.07
};
List <MarketRate> rates = new List <MarketRate>();
rates.Add(rate);
LoanAggregator agg = new LoanAggregator();
agg.FindLoans(rates, 1000, 36);
Assert.AreEqual(false, agg.IsLoanPossible);
}
public void TestMultipleLoadsPossible()
{
MarketRate rate1 = new MarketRate {
AmountAvailable = 100, Lender = "Bob", Rate = (float)0.07
};
MarketRate rate2 = new MarketRate {
AmountAvailable = 100, Lender = "Alice", Rate = (float)0.06
};
List <MarketRate> rates = new List <MarketRate>();
rates.Add(rate1);
rates.Add(rate2);
LoanAggregator agg = new LoanAggregator();
agg.FindLoans(rates, 50, 36);
Assert.AreEqual(true, agg.IsLoanPossible);
}
public void TestSingleLoanCalculation()
{
MarketRate rate = new MarketRate {
AmountAvailable = 1000, Lender = "Alice", Rate = (float)0.07
};
List <MarketRate> rates = new List <MarketRate>();
rates.Add(rate);
LoanAggregator agg = new LoanAggregator();
agg.FindLoans(rates, 1000, 36);
Assert.AreEqual(true, agg.IsLoanPossible);
Assert.AreEqual(1000, agg.LoanAmount, "LoanAmount check failed");
Assert.AreEqual("30.88", agg.Monthly, "MonthlyPayments check failed");
Assert.AreEqual("1,111.57", agg.Total, "TotalRepayment check failed");
}
