/checkout-kata

Checkout Kata

Checkout Kata

Originally found here: https://rubygem.me/2014/01/16/shopping-cart-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.

SKU Quantity 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.

suggested interfaces (feel free to write your own!):

Javascript

var Checkout = function(){
  function total(){
  }
   
  function scan(item){
  }
 
  return {
    scan: scan,
    total: total
  };
};