Testing

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• core-assertNode.js `assert` as a standalone module
• fetch-mock-cacheCaching mock fetch implementation for all runtimes and frameworks.
• mock-propertyGiven an object and a property, replaces a property descriptor (or deletes it), and returns a thunk to restore it.
• enzyme-to-jsonconvert enzyme wrapper to a format compatible with Jest snapshot
• vitest-fetch-mockfetch mock for vitest
• @webext-core/fake-browserAn in-memory implementation of web extension APIs for testing. Supports all test frameworks (Vitest, Jest, etc)
• jest-date-mockMock `window.Date` when run unit test cases with jest. Make tests of `Date` easier.
• @pact-foundation/pactPact for all things Javascript
• karma-mochaA Karma plugin. Adapter for Mocha testing framework.
• codeceptjsSupercharged End 2 End Testing Framework for NodeJS
• create-wdioInstall and setup a WebdriverIO project with all its dependencies in a single run
• @wdio/xvfbA standalone utility to manage Xvfb (X Virtual Framebuffer) for headless testing
• playwright-bddBDD Testing with Playwright runner
• ng-mocksng-mocks simplifies Angular testing with mock dependencies, shallow rendering and less boilerplate. Mock components, services, directives, pipes and modules in Angular 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 with Jasmine, Jest or Vitest.
• ctrfCTRF reference implementation in TypeScript for creating and validating CTRF documents.
• avaNode.js test runner that lets you develop with confidence.
• mockttpMock HTTP server for testing HTTP clients and stubbing webservices
• @scalar/api-reference-reactThe react client only integration for api references
• aws-sdk-client-mock-jestCustom Jest matchers for AWS SDK v3 Client mock
• chai-stringstrings comparison matchers for chai
• @golevelup/ts-jestReusable utilities to help level up NestJS Testing
• pg-memA memory version of postgres
• jest-fail-on-consoleUtility to make jest tests fail when console.error() or console.warn() are used
• jest-preset-stylelintJest preset for Stylelint plugins.
• react-select-eventSimulate react-select events for react-testing-library
• jest-fixed-jsdomA superset of the JSDOM environment for Jest that respects Node.js globals.
• calibrePerformance monitoring with Synthetic testing, Chrome UX Report, and Real User Metrics
• json-server[](https://github.com/typicode/json-server/actions/workflows/node.js.yml)
• jest-sonar-reporterA Sonar test reporter for Jest.
• detoxE2E tests and automation for mobile
• devtoolsA Chrome DevTools protocol binding that maps WebDriver commands into Chrome DevTools commands using Puppeteer
• @stdlib/assert-is-regexp-stringTest if a value is a regular expression string.
• jest-html-reporterJest test results processor for generating a summary in HTML
• xhr-mockletUtility for mocking XMLHttpRequests in the browser or nodejs.
• @contract-case/case-core-plugin-httpContractCase core HTTP plugin, providing HTTP matchers and mocks
• @contract-case/case-coreCore functionality for the ContractCase contract testing suite
• @contract-case/case-plugin-basePlugin framework for writing plugins for the ContractCase test framework
• @contract-case/case-plugin-dsl-typesTypes for writing the definition DSL for plugins for the ContractCase test framework
• @contract-case/cliCommand-line interface for ContractCase, allowing interactions with the Contract / Pact Broker
• @contract-case/contract-case-jestContractCase contract testing suite for Jest
• @contract-case/case-entities-internalShared types for ContractCase modules
• @contract-case/case-core-plugin-function-dslContractCase core function plugin DSL
• karma-mocha-reporterKarma reporter with mocha style logging.
• vitest-fail-on-consoleUtility to make vitest tests fail when console.error() or console.warn() are used
• @contract-case/case-core-plugin-functionContractCase core function plugin, allowing validation of arbitrary functions
• @contract-case/case-core-plugin-http-dslContractCase HTTP plugin CaseExample definition DSL
• qunitThe powerful, easy-to-use testing framework.
• cypress-iframeAdds iframe support to Cypress
• @testcontainers/localstackLocalStack module for Testcontainers
• jsdom-testing-mocksA set of tools for emulating browser behavior in jsdom environment

• 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