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.

• @stdlib/assert-is-probabilityTest if a value is a probability.
• fs-requireCreate a require() function from any file-system
• mocksseAllows testing of EventSource / Server Sent Events
• grunt-mocha-istanbulAlmost config-free Istanbul code coverage reporter for Mocha usage in Grunt
• @myobie/ptyPersistent terminal sessions with detach/attach, plus a Playwright-style testing library for TUI apps
• @testcontainers/oraclefreeOracle DB Free module for Testcontainers
• babel-plugin-transform-barrelsA Babel plugin that transforms indirect imports through a barrel file (index.js) into direct imports.
• @nestjs-cognito/testingCognito testing helpers for NestJS-Cognito
• @gnosis.pm/mock-contractSimple Solidity contract to mock dependent contracts in truffle tests.
• superagent-mocksuperagent plugin allowing to simulate HTTP calls by returning data fixtures based on the requested URL.
• dtu-github-actionsDigital Twin Universe - GitHub Actions Mock and Simulation
• gulp-spawn-mochaRuns Mocha as a child process.
• playwright-client-certificate-loginA playwright script to login using client certificates
• @mizdra/graphql-codegen-typescript-fabbricaGraphQL Code Generator Plugin to define mock data factory.
• lintspacesLibrary for checking spaces in files
• unit.jsSimple, intuitive and flexible unit testing framework for javascript / Node.js (browser and server). Integrates awesome assertions libraries like Must.js, Should.js, Assert of Node.js, Sinon.js and other friendly features (promise, IoC, plugins, ...).
• grunt-saucelabsGrunt task running tests using Sauce Labs. Supports QUnit, Jasmine, Mocha and YUI tests
• @stdlib/math-base-assert-is-positive-integerTest if a finite double-precision floating-point number is a positive integer.
• @stdlib/ndarray-base-assert-is-data-type-stringTest if an input value is a supported built-in ndarray data type string.
• workerloader-jest-transformerJest transformer for Webpack Worker loader
• @pothos/plugin-mocksA Pothos plugin for mocking resolvers
• @forsakringskassan/apimock-expressExpress middleware for mocking API calls with json & js files during development.
• playwright-recastFluent pipeline library for processing Playwright traces into polished demo videos — TTS voiceover, subtitles, speed control, and zoom.
• @stdlib/ndarray-base-assert-is-orderTest if an input value is an ndarray order.
• jest-mock-proxyMock classes and objects with the power of proxies!
• @web/test-runner-webdriverWebdriver browser launcher for Web Test Runner
• @opengovsg/mockpassA mock SingPass/CorpPass server for dev purposes
• @stdlib/assert-is-integer-arrayTest if a value is an array-like object containing only integers.
• @stdlib/ndarray-base-assert-is-buffer-length-compatibleDetermine if a buffer length is compatible with provided ndarray meta data.
• @stdlib/ndarray-base-assert-is-index-modeTest if an input value is a supported ndarray index mode.
• zuulsimple browser testing
• chai-urlA chai assertion plugin for working with urls
• @stdlib/math-base-assert-is-negative-integerTest if a finite double-precision floating-point number is a negative integer.
• @vercel/sandbox-mockDrop-in mock for @vercel/sandbox backed by just-bash.
• @scenarist/coreInternal: Hexagonal architecture core for scenario-based testing with MSW
• @scenarist/nextjs-adapterNext.js adapter for Scenarist (Pages Router and App Router)
• @scenarist/msw-adapterInternal: MSW integration layer for Scenarist framework adapters
• @japa/spec-reporterSpec reporter for japa test runner
• babel-plugin-explicit-exports-referencesTransforms all internal references to a module's exports such that each reference starts with `module.exports` instead of directly referencing an internal name. This enables easy mocking of specific (exported) functions in Jest with Babel/TypeScript, even
• bun-bagel🥯 The Bun fetch mocker with a hole lot of flavor.
• yamltestDeclarative YAML-based HTTP, command, and Kubernetes test runner
• hockA mocking server for HTTP requests
• @sentry/jest-environmentAutomatic performance instrumentation for your Jest tests.
• chai-as-promised-also-chainAdding .also chain in base library of chai-as-promised
• @stdlib/assert-is-unity-probability-arrayTest if a value is an array of probabilities that sum to one.
• annoisGenerative type checkers for JavaScript
• @scenarist/playwright-helpersPlaywright test helpers for Scenarist scenario management
• jasmine-enzymeJasmine assertions for enzyme
• @foundry-rs/anvil-linux-amd64Anvil is a fast local Ethereum development node (Linux x64)
• @storycap-testrun/nodeNode.js screenshot capture for Storybook Test Runner - Provides stable screenshot functionality using Playwright for visual regression testing

• 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