Testing

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• pretty-formatStringify any JavaScript value.
• jest-workerModule for executing heavy tasks under forked processes in parallel, by providing a `Promise` based interface, minimum overhead, and bound workers.
• jest-utilThis packages is a collection of utilities and helper functions
• @vitest/spyLightweight Jest compatible spy implementation
• @vitest/pretty-formatFork of pretty-format with support for ESM
• chaiBDD/TDD assertion library for node.js and the browser. Test framework agnostic.
• @vitest/expectJest's expect matchers as a Chai plugin
• playwright-coreA high-level API to automate web browsers
• vitestNext generation testing framework powered by Vite
• assertion-errorError constructor for test and validation frameworks that implements standardized AssertionError specification.
• @vitest/mockerVitest module mocker implementation
• playwrightA high-level API to automate web browsers
• @vitest/snapshotVitest snapshot manager
• expect-type[](https://github.com/mmkal/expect-type/actions/workflows/ci.yml)  [](ht
• @testing-library/domSimple and complete DOM testing utilities that encourage good testing practices.
• axe-coreAccessibility engine for automated Web UI testing
• @testing-library/jest-domCustom jest matchers to test the state of the DOM
• jest-haste-map`jest-haste-map` is a module used by Jest, a popular JavaScript testing framework, to create a fast lookup of files in a project. It helps Jest efficiently locate and track changes in files during testing, making it particularly useful for large projects
• jest-validateGeneric configuration validation tool that helps you with warnings, errors and deprecation messages as well as showing users examples of correct configuration.
• @testing-library/reactSimple and complete React DOM testing utilities that encourage good testing practices.
• jest-get-typeA utility function to get the type of a value
• babel-jestJest plugin to use babel for transformation.
• babel-plugin-jest-hoistBabel plugin to hoist `jest.disableAutomock`, `jest.enableAutomock`, `jest.unmock`, `jest.mock`, calls above `import` statements. This plugin is automatically included when using [babel-jest](https://github.com/jestjs/jest/tree/main/packages/babel-jest).
• babel-preset-jest> Babel preset for all Jest plugins. This preset is automatically included when using [babel-jest](https://github.com/jestjs/jest/tree/main/packages/babel-jest).
• deep-eqlImproved deep equality testing for Node.js and the browser.
• jest-watcherDelightful JavaScript Testing.
• @testing-library/user-eventFire events the same way the user does
• jest-docblock`jest-docblock` is a package that can extract and parse a specially-formatted comment called a "docblock" at the top of a file.
• jest-eachParameterised tests for Jest
• jest-leak-detectorModule for verifying whether an object has been garbage collected or not.
• tinyspyA minimal fork of nanospy, with more features
• diff-sequencesCompare items in two sequences to find a longest common subsequence
• jestDelightful JavaScript Testing.
• jest-changed-filesA module used internally by Jest to check which files have changed since you last committed in git or hg.
• jest-cliDelightful JavaScript Testing.
• @jest/coreDelightful JavaScript Testing.
• jest-circus[type-definitions]: https://github.com/jestjs/jest/blob/main/packages/jest-types/src/Circus.ts
• fast-checkProperty based testing framework for JavaScript (like QuickCheck)
• jest-pnp-resolverplug'n'play resolver for Webpack
• memfsIn-memory file-system with Node's fs API.
• @vitest/coverage-v8V8 coverage provider for Vitest
• responselikeA response-like object for mocking a Node.js HTTP response stream
• ast-v8-to-istanbulAST-aware v8-to-istanbul
• ts-jestA Jest transformer with source map support that lets you use Jest to test projects written in TypeScript
• @mswjs/interceptorsLow-level network interception library for Node.js.
• mswSeamless REST/GraphQL API mocking library for browser and Node.js.
• supertestSuperAgent driven library for testing HTTP servers
• mochaClassic, reliable, trusted test framework for Node.js and the browser
• query-selector-shadow-domuse querySelector syntax to search for nodes inside of (nested) shadow roots
• identity-obj-proxyan identity object using ES6 proxies

• selenium-webdriver vs wd
• @appium/types vs selenium-webdriver
• msw vs json-server
• @copilotkit/aimock vs mock-socket
• @appium/types vs wd
• mockttp vs ts-mockito
• mock-socket vs ts-mockito
• rewire vs ng-mocks
• msw vs miragejs
• codeceptjs vs playwright-bdd
• codeceptjs vs nightwatch
• mocha vs jasmine-core
• mock-socket vs ng-mocks
• fast-check vs rewire
• ts-jest vs @golevelup/ts-jest