supermarket-kata
The exercise is to model and code a simple supermarket pricing solution. It is inspired by Pragmatic Dave’s Supermarket Kata.
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Ecosystems:
JavaScript
Supermarket Kata
Try it out at https://supermarketkata.netlify.app/
Table of Contents
Overview
This is a simple ReactJS front-end that allows a user to add/remove items into a basket and have the basket total automatically updated based on item price and applicable discounts.
I have:
- used functional programming over OO
- used javascript
- not needed to use any functional libraries such as
lodash-fp - used bootstrap + a little bit of custom styling
- used redux
- written clean code
- used TDD - see the git history. As the complexity of this task was mainly in the effects of the add/remove items buttons, I mainly used integration tests to be confident about these interactions. I unit tested key functions (e.g. pricing items) to cover edge cases. I used acceptance and integration tests to ensure that important business rules are protected when changes come later.
Getting Started
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.
Prerequisites
Installing
Clone the repo
git clone [email protected]:rwalle61/supermarket-kata.git
Install dependencies
yarn install
Run the app
yarn start
The app will be running at http://localhost:3000.
Running the Tests
Jest watch mode
yarn test
All tests
yarn test:ci