Unit testing classes or parts of a p5.js sketch?

andrewjtimmons

Hello!

I am looking to unit test some of my code. My instinct was to use mocha and chai assertion libraries but I wanted to see if anyone else had done some of this with a processing sketch before and had any tips/best practices?

Cheers

andrewjtimmons

Building it with Mocha and Chai! It works!

fearless_fool

@andrewjtimmons:

Could you grace us with an example of how you wrote your mocha tests? The first things I stumbled on was how to require() the requisite p5 module. If I simply put

var p5 = require('../libraries/p5.js')

at the head of my test file, then mocha errors out with

window.requestAnimationFrame = (function(){
^
ReferenceError: window is not defined

Then there's the small matter of how you wrap a p5 instance around the entire test, but I'm happy to take one step at a time. :)