static void Main(string[] args) {
if (args.Length == 0) {
Console.WriteLine("No input files provided.");
return;
}
string filename = args[0];
if (!File.Exists(filename)) {
Console.WriteLine("File does not exist: " + filename);
return;
}
Checkout checkout = new Checkout();
checkout.PerformCheckout(filename);
}
static void Main(string[] args)
{
var checkout = new Checkout();
var run = true;
Console.WriteLine("SKU Price Offer");
Console.WriteLine(" A 50 3 for 130");
Console.WriteLine(" B 30 2 for 45");
Console.WriteLine(" C 20");
Console.WriteLine(" D 15");
Console.WriteLine();
Console.WriteLine("Press T for total.");
do
{
Console.WriteLine();
var action = Console.ReadLine();
var actionUpper = action?.ToUpper();
switch (actionUpper)
{
case "A":
case "B":
case "C":
case "D":
checkout.Scan(actionUpper);
break;
case "T":
Console.WriteLine($"Your total is: £{checkout.GetTotalPrice()}");
break;
case "X":
run = false;
break;
}
} while (run);
}
public void Test(string items, double expectedPrice)
{
// Arrange
var checkout = new Checkout(new List <IPriceDeltaRule>
{
new PriceDeltaRule('A', 50),
new PriceDeltaRule('B', 30),
new PriceDeltaRule('C', 20),
new PriceDeltaRule('D', 15),
new MultiPriceDeltaRule('A', 3, -20),
new MultiPriceDeltaRule('B', 2, -15)
});
foreach (var item in items)
{
checkout.Scan(item);
}
// Act
var totalPrice = checkout.CalculateTotalPrice();
// Assert
Assert.That(totalPrice, Is.EqualTo(expectedPrice));
}
public void InvalidSKUTest()
{
var co = new Checkout(_pricingRules);
Assert.Throws <Exception>(() => co.Scan("Invalid_SKU"));
}
