node-supervisor - A little supervisor script for nodejs. It runs your program, and watches for code changes, so you can have hot-code reloading-ish behavior, without worrying about memory leaks and making sure you clean up all the inter-module references, and without a whole new require system
mocha - Mocha is a feature-rich JavaScript test framework running on node and the browser, making asynchronous testing simple and fun
mongoddb - MongoDB (from "humongous") is a scalable, high-performance, open source NoSQL database
mongoose - elegant mongodb object modeling for node.js
Passport - Simple, unobtrusive authentication for Node.js
should.js - BDD style assertions for node.js -- test framework agnostic
supertest - Super-agent driven library for testing node.js HTTP servers using a fluent API