public void ShouldReturnSpecialPriceOfItemWithSpecialPrice()
{
CheckoutMachine checkout = new CheckoutMachine("a: 1 2 for 1");
checkout.Scan("a");
checkout.Scan("a");
Assert.AreEqual(checkout.Total, 1);
}
public void ShouldReturnNormalPriceOfASimpleItemScannedTwoTimes()
{
CheckoutMachine checkout = new CheckoutMachine("a: 1");
checkout.Scan("a");
checkout.Scan("a");
Assert.AreEqual(checkout.Total, 2);
}
public void ShouldReturnCorrectPriceForMixedItems()
{
CheckoutMachine checkout = new CheckoutMachine(@"a: 2 2 for 1
b: 7
c: 4 3 for 10");
checkout.Scan("a");
checkout.Scan("b");
checkout.Scan("c");
checkout.Scan("c");
checkout.Scan("c");
Assert.AreEqual(checkout.Total, 19);
}
public void ScanSingleItem()
{
checkoutMachine.Scan("C40");
checkoutMachine.Done();
Assert.AreEqual(checkoutMachine.TotalPrice, 60);
}