mocha-webpack

A CLI tool that integrates Mocha test runner with Webpack bundling, allowing you to test modules that rely on Webpack features (loaders, plugins, resolve aliases) without pre-building or using hacks. Version 1.1.0 is the latest stable release (as of late 2018). It supports Mocha >=2.4.5 <=5 and Webpack 2.x/3.x. Key differentiators: bundling tests into a single bundle with Webpack's full pipeline (loaders, resolve, plugins), built-in source map support, memory-fs for speed (no disk writes), customizable file watcher, and support for multiple entry files/patterns. The project is effectively unmaintained (last release 2017) for Webpack 4+ compatibility.