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Checkout Kata - Python

Test

Simple kata to get the overall cost of a basket given items.

Requirements

  • Docker

Testing

make test

This will run a python container, which will install the dependencies and run the tests

make watch

This will run a python container, which will install the dependencies and will run the tests every time a file is saved

Kata Instructions

You should implement a supermarket checkout which:

  • always accepts a string of items and gives back the total price
  • discounts any offers from the total price

Use the following pricing information:

Item Price Offer
A 50 3 for 130
B 30 2 for 45
C 20 N/A
D 15 N/A

For example:

  • 'DABA' gives 145
  • 'BBBB' gives 90