/awesome-jest

🕶Awesome Jest packages and resources

MIT LicenseMIT

Awesome Jest Awesome

An awesome list of Jest packages and resources

Contents

Packages

Matchers

IDE

  • vscode-jest Works out of the box Jest based testing in VS Code.
  • wallaby The pinnacle of the idea of a test runner integrated into an editor.
  • coc-jest Jest plugin for coc.nvim

Linting

Runners

Reporters

Results Processors

Environments

Coverage

  • jest-it-up Automatically bump up global thresholds whenever coverage goes above them.
  • jest-coverage-thresholds-bumper Similar to jest-it-up, but allows to specify where coverage summary is located, supports Jest config in JSON files and package.json.

Snapshot

  • snapshot-diff Takes two values, and return their difference as a string, ready to be snapshotted with toMatchSnapshot(). Especially helpful when testing the difference between different React component states.
  • jest-snapshots-svg Take a React component tree, and render it into an SVG.
  • jest-image-snapshot Take a snapshot test of an image buffer, and catch when the image changes over a threshold. Commonly used for visual regression testing.
  • enzyme-to-json Convert Enzyme wrappers to a format compatible with Jest snapshot testing.
  • jest-styled-components A set of utilities for testing Styled Components with Jest.
  • jest-img-snapshot Image snapshot comparison using pixelmatch with all Jest's snapshot goodies out of the box.
  • jest-file-snapshot Write snapshots to a separate file instead of the default snapshot file used by Jest.
  • Differencify Visual regression testing tool using Jest and Puppeteer to do Image snapshot comparison.
  • StoryShots StoryShots adds automatic Jest Snapshot Testing for Storybook.
  • jest-large-snapshot-warning Add warnings to large snapshots.
  • jest-serializer-react-helmet Include React Helmet data in component snapshots.
  • jest-serializer-json-ld-script Serializes JSON+LD elements as JavaScript objects.
  • jest-emotion Include Emotion styles in component snapshots.
  • jest-serializer-xml Format XML documents to better visualize in Snapshots.
  • 1log Extensible logger that allows capturing log messages as snapshots.

Migration

  • jest-codemods Makes it easy to migrate from other test runner and frameworks to Jest.

Library extensions

  • testdouble-jest Support for testdouble.js for users of Jest.
  • jest-puppe-shots A Jest plugin for creating screenshots of React components with a little help of Puppeteer.
  • babel-jest-assertions Babel plugin that automatically adds the number of assertions found in each test with expect.assertions(n) and expect.hasAssertions().
  • typescript-snapshots-plugin Extends the TypeScript dev server to support hovering and jumping to a snapshot.
  • jest-chain Chain Jest matchers together to create one powerful assertion.
  • jest-expect-message Add custom message to Jest expects.
  • @bigtest/interactor A testing and assertion library that makes it easy to test UIs at scale while keeping accessibility at the core.
  • @testdeck/jest Decorator based wrapper around Jest for object oriented testing. Checkout the documentation and a working seed for you to start with.
  • jest-plugin-must-assert A Jest plugin for strict runtime checks. Fails any tests without assertions and prevents async tasks (Promises & timeouts) from leaking across tests.
  • wait-for-expect A await/async function to wait a expect. Useful on e2e test.
  • jest-os-detection Dynamically enable or skip tests based on the OS they run on so you can share the same test suite accross various platforms.

Mocks

Watch plugins

Processor

Presets

Resources

Contribute

Contributions welcome! Read the contribution guidelines.

License

MIT