Large collection of predicates.

Lightweight debugging utility for Node.js and the browser

Lazy assertions without performance penalty

kill trees of processes

wait-on is a cross platform command line utility and Node.js API which will wait for files, ports, sockets, and http(s) resources to become available

TypeScript definitions for node

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

Run scripts that set and use environment variables across platforms

Modern native Git hooks

Classic, reliable, trusted test framework for Node.js and the browser

JavaScript test spies, stubs and mocks.

Extends Chai with assertions for the Sinon.JS mocking framework.