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.
Cypress
Fast, easy, and reliable end-to-end and component testing for anything that runs in a browser.
fflate
High-performance DEFLATE, GZIP, Zlib, and ZIP compression for JavaScript in an 8kB package.
flate2
Streaming DEFLATE, gzip, and zlib compression for Rust with pluggable backends
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
pako
A fast, zlib-compatible compression library for JavaScript that runs identically in the browser and Node.js.
c8
Native V8 code coverage for Node.js, with Istanbul-compatible reports and zero build-step setup.
node-unzipper
A streaming zip extraction library for Node.js that supports random access to files on disk, in buffers, over HTTP, or on S3 without buffering the whole archive.
Ginkgo
A mature, BDD-style testing framework for Go that pairs with Gomega to write expressive, parallelizable specs.
start-server-and-test
Starts your dev server, waits for it to respond, runs your test command, then shuts the server down automatically.
jest-extended
Additional custom matchers for Jest to extend and simplify your test assertions.