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Package guides written the honest way, including who should skip them.
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npm
PyPI
Testing
PyPI · 265.4M/wk
pytest
pytest is the de facto standard test framework for Python.
Score 4.8/5
Testing
npm · 88.3M/wk
vitest
Vitest is a test runner built on top of Vite.
Score 4.5/5
Testing
npm · 78.0M/wk
playwright
Browser automation from Microsoft that drives Chromium, Firefox, and WebKit with one API.
Score 4.8/5
Testing
npm · 51.6M/wk
@testing-library/react
React Testing Library renders your React components into a DOM (usually jsdom) and gives you queries that find elements the way a user would: by role, label, or visibl...
Score 4.5/5
Testing
npm · 46.2M/wk
jest
Jest is an all-in-one JavaScript testing framework: test runner, assertion library, mocking system, coverage reporting, and snapshot testing in a single install.
Score 4.5/5
Testing
PyPI · 24.3M/wk
playwright
Microsoft's Python bindings for Playwright: browser automation that drives Chromium, Firefox, and WebKit with a single API.
Score 4.8/5
Testing
npm · 20.6M/wk
storybook
A frontend workshop that runs your UI components in isolation, outside your app.
Score 4.3/5
Testing
PyPI · 13.1M/wk
selenium
Selenium is the original browser automation project and the reference implementation of the W3C WebDriver specification: a language-neutral protocol for driving real C...
Score 4.5/5
Testing
npm · 11.4M/wk
puppeteer
Puppeteer is a Node.js library that drives Chrome or Firefox through the DevTools Protocol or WebDriver BiDi, headless by default.
Score 4.3/5
Testing
npm · 7.4M/wk
cypress
End-to-end and component testing framework that runs your tests inside a real browser, alongside your app, instead of driving the browser over a remote protocol.
Score 4.3/5