A checkout system with the ability to offer promotions. Here are the products available:
| Product code | Name | Price |
|---|---|---|
| 001 | Lavender heart | £9.25 |
| 002 | Personalised cufflinks | £45.00 |
| 003 | Kids T-shirt | £19.95 |
The following promotional rules are applied:
- If you spend over £60, then you get 10% off of your purchase.
- If you buy 2 or more lavender hearts, then the price drops to £8.50.
From the command line:
$ git clone https://github.com/yyl29/checkout.git
$ cd checkout
$ bundle
Run in irb or pry from the command line.
$ irb
2.3.0 :001 > require './lib/checkout'
=> true
2.3.0 :002 > co = Checkout.new(PromotionalRule.new)
=> #<Checkout:0x007f9c340304d0 @rules=#<PromotionalRule:0x007f9c34030520>, @basket=[], @raw_total=0, @total=0>
2.3.0 :003 > co.scan 1
=> 9.25
2.3.0 :004 > co.scan 2
=> 54.25
2.3.0 :005 > co.scan 1
=> 63.5
2.3.0 :006 > co.scan 3
=> 83.45
2.3.0 :007 > price = co.total
=> 73.76
2.3.0 :008 >
From the command line:
$ rspec