simple, flexible, fun test framework

the lightest yet the fastest javascript testing library

Node.js test runner that lets you develop with confidence.

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

Delightful JavaScript Testing.

Additional Jest matchers

Power Assert in JavaScript

tap-producing test harness for node and browsers

Display differences clearly so people can review changes confidently.

A deep deletion module for node (like `rm -rf`)

Formatted TAP output like Mocha's spec reporter

A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript

Babel provider for AVA

Babel compiler core.

Jest plugin for Sucrase