How to create new unit test

mnse · April 4, 2024, 6:11am

Hard to say what’s wrong without seeing what you’ve done…

Did you follow the description here:

processing/p5.js/blob/main/contributor_docs/unit_testing.md

<!-- Guide to writing tests for p5.js source code.  -->

# Unit Testing

Unit testing is an essential part of how a large codebase can stay relatively bug-free. Unit tests are small pieces of code that aim to test individual components of a larger code base for correctness. For example, making sure a function is doing what it should be doing or a class is creating its object instances correctly.

p5.js uses unit tests to ensure the correctness of its various functions. Unit tests also ensure that any new changes to the library’s code do not introduce bugs or unexpected behavior elsewhere, called regression. Tests for p5.js are run whenever we use the `npm test` command in the terminal.

This guide will walk you through the process of writing unit tests for p5.js. If you are implementing a new function, adding a new feature to an existing function, or changing the behavior of a function, you should implement the relevant unit tests.


## Prerequisites

- p5.js foundation
- Contributor guidelines with local development setup
- Looking inside p5.js


## Files and folders

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you can run this and check on the console what tests are running…
npm test -- --verbose

Cheers
— mnse

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How to create new unit test

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