CHECKOUT KATA
Implement the code for a supermarket checkout that calculates the total price of a number of items. Goods are priced individually, however there are weekly special offers for when multiple items are bought. For example “Apples are 50 each or 3 for 130″.
Weekly offers change frequently.
| SKUUnit | Price | Special Offer |
|---|---|---|
| A99 | 50 | 3 for 130 |
| B15 | 30 | 2 for 45 |
| C40 | 60 | |
| T34 | 99 |
The checkout accepts the items in any order, so that if we scan a pack of Biscuits, an apple and another pack of biscuits, we’ll recognise two packs of biscuits and apply the discount of 2 for 45.