If you want to get cracking on the javascript source then do this:
git clone git@github.com:bressain/gilded-rose-js.git
cd gilded-rose-js
npm install
npm start
To run tests: npm run test
To run tests in watch mode: npm run test:watch
The master
branch has the exercise ready to be worked on. To see my solution to the exercise, view the my-solution
branch. My solution isn't perfect and shouldn't be considered the "correct way".
Have fun with this super fun kata!
Hi and welcome to team Gilded Rose.
As you know, we are a small inn with a prime location in a prominent city ran by a friendly innkeeper named Allison. We also buy and sell only the finest goods. Unfortunately, our goods are constantly degrading in quality as they approach their sell by date.
We have a system in place that updates our inventory for us. It was developed by a no-nonsense type named Leeroy, who has moved on to new adventures. Your task is to add the new feature to our system so that we can begin selling a new category of items.
First an introduction to our system:
- All items have a
sellIn
value which denotes the number of days we have to sell the item - All items have a
quality
value which denotes how valuable the item is - At the end of each day our system lowers both values for every item
Pretty simple, right? Well this is where it gets interesting:
- Once the sell by date has passed,
quality
degrades twice as fast - The
quality
of an item is never negative - 'Aged Brie' actually increases in
quality
the older it gets - The
quality
of an item is never more than 50 - 'Sulfuras', being a legendary item, never has to be sold or decreases in
quality
- 'Backstage passes', like aged brie, increases in
quality
as it'ssellIn
value approaches;quality
increases by 2 when there are 10 days or less and by 3 when there are 5 days or less butquality
drops to 0 after the concert
We have recently signed a supplier of conjured items. This requires an update to our system:
- 'Conjured' items degrade in
quality
twice as fast as normal items
Feel free to make any changes to the updateQuality
method and add any new code as long as everything still works correctly. However, do not alter the Item
class or items
property as those belong to the goblin in the corner who will insta-rage and one-shot you as he doesn't believe in shared code ownership (you can make the updateQuality
method and items
property static if you like, we'll cover for you).
Just for clarification, an item can never have its quality
increase above 50, however 'Sulfuras' is a legendary item and as such its quality
is 80 and it never alters.
Adapted from: https://github.com/professor/GildedRose && http://www.iamnotmyself.com/2011/02/13/RefactorThisTheGildedRoseKata.aspx