albertodotcom/pasta

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.

parse argument options

rule-based plural library

Portable Unix shell commands for Node.js

A lightweight Promises/A+ and when() implementation, plus other async goodies.

A logger for just about everything.

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale

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

takes json-cov output into stdin and POSTs to coveralls.io

simple, flexible, fun test framework

Proxies nodejs require in order to allow overriding dependencies during testing.

JavaScript test spies, stubs and mocks.

A guide for styling your node.js / JavaScript code.