public Change MakePurchase(Purchase purchase)
{
// Randomize the change if divisible by 3. Yeah, it's weird, but I like it!
// Note: % doesn't work on fractions, so shift the money to an integer for the test.
if (purchase.ItemCost*100 % 3 == 0)
{
return _randomChangeStrategy.MakeChange(purchase.Payment - purchase.ItemCost);
}
return _minChangeStrategy.MakeChange(purchase.Payment - purchase.ItemCost);
}
private static void Main(string[] args)
{
var container = new Container(c => c.AddRegistry<AppScanRegistry>());
var changeMaker = container.GetInstance<IPurchaseStrategy>();
var fileProcessor = container.GetInstance<IFileProcessor>();
string inputFilename = args.Length > 0 ? args[0] : "InputSample.csv";
var dts = inputFilename + ".out" + DateTime.Now.ToString("yyyyMMddHHMMSS");
string outputFilename = args.Length > 1 ? args[1] : dts;
fileProcessor.ProcessFile(inputFilename, outputFilename, purchaseText =>
{
var purchase = new Purchase(purchaseText);
var change = changeMaker.MakePurchase(purchase);
Console.Out.Write(purchase + " => " + change + "\n");
return change.ToString();
});
// SO that I can read it when I execute in the VS....
Console.In.ReadLine();
}
public void it_should_display_the_object()
{
var purchase = new Purchase("2.00,3.00");
Assert.AreEqual(purchase.ToString(),"P:3.00,C:2.00");
}
public void it_should_handle_the_happy_path()
{
var purchase = new Purchase("2.00,3.00");
Assert.AreEqual(purchase.Payment,3M);
Assert.AreEqual(purchase.ItemCost, 2M);
}