Skip to content
No description, website, or topics provided.
Ruby Other
  1. Ruby 98.6%
  2. Other 1.4%
Branch: 22-nov
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
.circleci
lib
test
.gitignore
.rakeTasks
Gemfile
Gemfile.lock
Guardfile
Makefile
README.md
Rakefile
license.txt
main.rb
tcr.sh

README.md

Continuous Integration with the Supermarket Receipt Refactoring Kata

This is a fork of Emily Bache's https://github.com/emilybache/SupermarketReceipt-Refactoring-Kata with_tests branch.

The aim of the exercise is to refactor this code as a team, and add a new feature.

The Domain

The supermarket has a catalog with different types of products (rice, apples, milk, toothbrushes,...). Each product has a price, and the total price of the shopping cart is the total of all the prices of the items. You get a receipt that details the items you've bought, the total price and any discounts that were applied.

The supermarket runs special deals, e.g.

  • Buy two toothbrushes, get one free. Normal toothbrush price is €0.99
  • 20% discount on apples, normal price €1.99 per kilo.
  • 10% discount on rice, normal price €2.49 per bag
  • Five tubes of toothpaste for €7.49, normal price €1.79
  • Two boxes of cherry tomatoes for €0.99, normal price €0.69 per box.

These are just examples: the actual special deals change each week.

The Challenge

You must refactor the code, using the safety of the test suite provided.

As a team identify code smells such as Long Method, Innappropriate Intimacy. Apply relevant refactorings.

When the team is confident it can handle this code, choose a pair to implement the new feature described below using TDD.

Rules

  • Split into pairs.
  • When refactoring, use a modified version of TCR; test && (commit ; pull --rebase ; push) || reset --hard HEAD. - you can run make tcr
  • Don't go longer than 3 minutes without running your tests.
  • Push to master.
  • Collaborate to solve merge conflicts.
  • Every commit in master should pass all tests.
  • Don't worry about commit messages, that's not what we're doing here.

Details of the Backlog

The owner of the system has a new feature request.

They want to introduce a new kind of special offer - bundles. When you buy all the items in a product bundle you get 10% off the total for those items.

For example you could make a bundle offer of one toothbrush and one toothpaste. If you then you buy one toothbrush and one toothpaste, the discount will be 10% of €0.99 + €1.79. If you instead buy two toothbrushes and one toothpaste, you get the same discount as if you'd bought only one of each - ie only complete bundles are discounted.

You can’t perform that action at this time.