Code for a supermarket checkout that calculates the total price of a number of items.
In a normal supermarket, items are identified by ‘stock keeping units’ or ‘SKUs’. In our store, we will use individual letters of the alphabet, A, B, C etc, as the SKUs. Our goods are priced individually. In addition, some items are multipriced: buy n of them and which will cost you y. For example, item A might cost 50 pence individually but this week we have a special offer where you can buy 3 As for £1.30. This week’s prices are the following:
| Item | Unit Price | Special Price |
|---|---|---|
| A | 50 | 3 for 130 |
| B | 30 | 2 for 45 |
| C | 20 | |
| D | 15 |
Our checkout accepts items in any order so if we scan a B, then an A, then another B, we will recognise the two B’s and price them at 45 (for a total price so far of 95). Extra points: Because the pricing changes frequently we will need to be able to pass in a set of pricing rules each time we start handling a checkout transaction.
- find the Scenario Descriptions in
src/test/resources/checkout.feature - execute the following command on this directory to execute the tests
mvn verify