A configurable mock file system. You know, for testing.

Delightful JavaScript Testing.

A sandboxed Node.js module loader that lets you inject dependencies into your modules.

Require a module bypassing the cache

Simplifying the use of mocks with Node.js

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

Temporary file and directory creator

Logic for validating objects against JSON-schema specs and performing version upgrades when necessary / possible

Prettier is an opinionated code formatter

Rollup plugin to minify generated es bundle

JavaScript parser, mangler/compressor and beautifier toolkit

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

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