jest-fixed-happy-dom

A superset of the happy-dom environment for Jest that respects Node.js globals.

[!WARNING] This package is never meant as a solution to anything. This is a workaround. Please consider testing browser code in the actual browser. You can do so both in Vitest and in Playwright at the moment.

This is a fork of the https://github.com/mswjs/jest-fixed-jsdom package and does the same thing but for happy-dom instead of JSDOM. Please read their README for details.

Getting started

Install

npm i jest-fixed-happy-dom --save-dev

Configure Jest

In your jest.config.js, set the testEnvironment option to jest-fixed-happy-dom:

// jest.config.js
module.exports = {
  testEnvironment: 'jest-fixed-happy-dom',
}

You can use any other testEnvironmentOptions you need. Those will be forwarded to the underlying jest-environment-happy-dom.