Gilded Rose Refactoring Kata

This Kata was originally created by Terry Hughes (http://twitter.com/TerryHughes). It is already on GitHub here. See also Bobby Johnson's description of the kata.

Run the program

• clone this repo
• install gems

$ cd ruby
$ bundle

• run in irb

$ irb -r './lib/gilded_rose.rb'

Testing

• from the root file run:

rspec

Test Linting

• from root file run:

 $ rubocop

Specification

User Stories

As a user
So that I can keep track of stock quality
I want a program to do that for me

As an inkeeper
So that I can add new products
I want it to be easily modifiable

As an inkeeper
Due to buying new products which are conjured
I want the code to degrade my new product type twice as fast as a normal item

Aim

• implement a new item type condition in the GildedRose class
  • new type is conjuring
    • Every day, an item of this type's quality will degrade by 2 if the sell_in value is 0 or above
    • after this, it will decrease by 4 every time.
• refactor existing code to make it easier to implement new features
• provide a solid test base with high coverage

Rubocop

Although linting was initially done with rubocop, I disagreed with the use of an if else statement over a case statement in the update_quality method. I found it less readable so have opted for the case statement. Due to this, rubocop does have active offences on this program.