Mocha

Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. Hosted on GitHub.

Mocha - Mocha Core

Mocha - Mocha Open Source

Mocha - Hooks

Mocha - Allow before() hook to be called before describe() also instead of only it() OR beforeDescribe() hook #1628

Mocha - Mocha reports the wrong message for a before() failure #2134