corybill/preconditions

The `util.is*` functions introduced in Node v0.12.

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

simple, flexible, fun test framework

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

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 many levels of your code. This concept works wonders when using promise chains because you get the stack trace at each level of your code.