Gilded Rose Refactoring Kata

Overview

As a second tech test, we were given the infamous Gilded Rose Refactoring Kata, created by Terry Hughes. You can find the Kata on Github here and starting code for multiple programming languages here.

See here for the Kata's requirements.

I highly recommend watching Sandi Metz's talk which uses a simplified version of the Ruby code to showcase the importance of Single Responsibility and Open/Close Design Principles of the Object Oriented Programming.

Usage

• Clone repository
• cd to the project's root directory
• Run gem install bundler
• Run bundle install to install all of the required gems
• Run rspec to make sure that all tests are passing
• Run ruby textest_fixture.rb in the terminal. You can specify a number of days after the command.

Tech

• Ruby
• RSpec

Approach

Below are the steps that I undertook to solve this kata:

1. Write tests for the existing code base

2. Use the tests from step 1 to guide me through a refactor stage to simplify the update_quality method by breaking it into smaller methods

3. Extract common functionality from GildedRose class into separate classes