simple, flexible, fun test framework - Node.js module

 Mocha is a feature-rich JavaScript test framework running
 on Node.js and 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.
 .
 Node.js is an event-based server-side JavaScript engine.