Headless tape test runner

the stream module from node core for browsers

simple browser testing

browser-side require() the node way

simple, flexible, fun test framework

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

Formatted TAP output like Mocha's spec reporter

Canvas graphics API backed by Cairo