Installation

Vitest Jest Bun Mocha

Overview

An in-memory implementation of webextension-polyfill for testing. Supports all test frameworks (Vitest, Jest, etc).

pnpm i -D @webext-core/fake-browser

This package only really works with projects using node, so only the NPM install steps are shown.

See Testing Frameworks to setup mocks for your testing framework of choice.

See Implemented APIs for example tests and details on how to use each API.