Error factory with the ability to append stack traces from previous errors, as well as appending debug params to stack traces. Great if you want one appended stack trace that defines the error at man

ESLint JavaScript language implementation

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

Chance - Utility library to generate anything random

Generates markdown API documentation from jsdoc annotated source code

Maddox provides a simple way to rapidly unit test complex success and failure scenarios which can be driven by responses of mocked external dependencies.

simple, flexible, fun test framework