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mutant_mob_kata's Introduction

Mutant Mob attacks TicTacToe Kata

Purpose

This kata is designed for learning to use striker to improve a legacy code base.

Goal

Kill all the 36 mutants by writing tests/specs

Requirements

Just Node.JS and an internet connection.

Do the Kata

Remember to do an npm i first.

Start the jest watcher in one terminal (npm test) and run stryker in a different one (npm run stryker). Open reports/mutation/html/index.html in a browser. Click on tic_tac_toe.js to the see the mutants. Start adding specs to tic_tac_toe.js to kill the mutants. Keep the jest watcher running and restart Stryker after every new spec - also reload the report in the browser.

More things to do

The implementation code could be improved - a lot :) Refactor it and add the missing feature.

Background

This kata has been extracted from my JS Testing 2019 workshop (see https://www.codecentric.de/wissen/schulung/javascript-testing-2019/). It was designed for mob programming - hence the title.

mutant_mob_kata's People

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