Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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Vitest
A blazing-fast unit testing framework powered by Vite, with Jest-compatible APIs out of the box.
Playwright
Cross-browser end-to-end web testing and browser automation with a single API for Chromium, Firefox, and WebKit.
jest
Delightful JavaScript testing with zero-config setup, snapshots, mocking, and coverage
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
webpack-cli
The official command-line interface for webpack, adding build, watch, serve, and config-validation commands to any project.
babel-loader
Babel loader for webpack (and Rspack) that transpiles modern JavaScript with filesystem caching and source map support.
Cypress
Fast, easy, and reliable end-to-end and component testing for anything that runs in a browser.
mocha
The classic, battle-tested JavaScript test framework for Node.js and the browser, built around flexible async testing and pluggable reporters.
Chai
BDD/TDD assertion library for Node.js and the browser, framework-agnostic
async
Higher-order async utility functions for callback, async/await, and promise-based control flow in Node.js and the browser.
babel-plugin-module-resolver
A Babel plugin that rewrites import and require paths using custom root directories and aliases, replacing deep relative paths with clean module references.
c8
Native V8 code coverage for Node.js, with Istanbul-compatible reports and zero build-step setup.
Ginkgo
A mature, BDD-style testing framework for Go that pairs with Gomega to write expressive, parallelizable specs.
@rushstack/eslint-patch
A runtime monkey-patch that gives ESLint monorepo-friendly module resolution, custom shareable-config naming, and bulk suppression tooling for legacy lint violations.
start-server-and-test
Starts your dev server, waits for it to respond, runs your test command, then shuts the server down automatically.