JSPM

Delightful JavaScript Testing.

Delightful JavaScript Testing.

Accessibility engine for automated Web UI testing

Improved deep equality testing for Node.js and the browser.

In-memory file-system with Node's fs API.

Simple and complete DOM testing utilities that encourage good testing practices.

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

Delightful JavaScript Testing.

Simple and complete React DOM testing utilities that encourage good testing practices.

Custom jest matchers to test the state of the DOM

A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript

Fire events the same way the user does

[](https://github.com/mmkal/expect-type/actions/workflows/ci.yml)  [![X (formerly Twitter) Follow](https://img.shields.io/twitte

simple, flexible, fun test framework

JavaScript test spies, stubs and mocks.

Low-level HTTP/HTTPS/XHR/fetch request interception library.

SuperAgent driven library for testing HTTP servers

Seamless REST/GraphQL API mocking library for browser and Node.js.

Fake XHR and server

Cypress is a next generation front end testing tool built for the modern web

ESLint plugin to follow best practices and anticipate common mistakes when writing tests with Testing Library

the Istanbul command line interface

Property based testing framework for JavaScript (like QuickCheck)

Simple JavaScript testing framework for browsers and node.js

Simple and complete React hooks testing utilities that encourage good testing practices.

Spectacular Test Runner for JavaScript.

Adaptation of react-addons-shallow-compare, for independent usage

Extends Chai with assertions about promises.

The official JavaScript implementation of Cucumber.

JavaScript Testing utilities for React

Easy and powerful mocking of AWS SDK v3 Clients

Additional Jest matchers

Testcontainers is a NodeJS library that supports tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container

Allure JS Commons

The official WebDriver JavaScript bindings from the Selenium project

CLI for Jasmine, a simple JavaScript testing framework for browsers and Node

Simple and complete custom Cypress commands and utilities that encourage good testing practices.

Jest preset configuration for Angular projects

Mock 'http' objects for testing Express, Next.js and Koa routing functions

Provides a method to inject and analyze web pages using axe

JavaScript Testing utilities for React

Extends Chai with assertions for the Sinon.JS mocking framework.

use querySelector syntax to search for nodes inside of (nested) shadow roots

Various type declarations used across Appium

Mock http requests made using fetch

A selenium server and browser driver manager for your end to end tests.

Appium Configuration Schema

Wait for expectation to be true, useful for integration and end to end testing

WebDriverJS adapter for Jasmine2.

WebDriver Proxy for testing rich clients. It block certain calls until Angular is done updating the page under test.

JavaScript Testing utilities for React

Mock implementation of the Next.js Router

A client for working with the BrowserStack APIs.

Testing module for Pinia

convert enzyme wrapper to a format compatible with Jest snapshot

A plugin which adds additional commands to selenium's javascript implementation of the webdriver client side API

Command-line companion utility for Postman

A Test-Anything-Protocol library for JavaScript

strings comparison matchers for chai

Support libs used across Appium packages

Node.js test runner that lets you develop with confidence.

JavaScript Testing utilities for React

HeartBeat

Reusable utilities to help level up NestJS Testing

An Angular testing library for creating mock services, components, directives, pipes and modules in unit tests. It provides shallow rendering, precise stubs to fake child dependencies. ng-mocks works with Angular 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Allure Playwright integration

Nodejs bindings for BrowserStack Local

Base driver class for Appium drivers

Applitools universal framework wrapper

A Universal Logger For The Appium Ecosystem

Applitools universal screenshoter for web and native applications

Shared TypeScript Config for Appium

Automation for Apps.

Custom Jest matchers for AWS SDK v3 Client mock

time utils

A library for setting up JavaScript factories to help build objects as test data, with full TypeScript support

A Karma plugin. Launcher for Firefox.

Storybook Vitest addon: Blazing fast component testing using stories

Documentation generation utilities for Appium and related projects

Power Assert feature enhancer for assert function/object

Given an object and a property, replaces a property descriptor (or deletes it), and returns a thunk to restore it.

PostgreSQL module for Testcontainers

The base plugin used to create Appium plugins

JavaScript Testing utilities for React

Simulate react-select events for react-testing-library

A superset of the JSDOM environment for Jest that respects Node.js globals.

A client-side server to help you build, test and demo your JavaScript app

Parsing string to array of args like node on bash do.

Android UiAutomator and Chrome support for Appium

<!-- markdownlint-disable MD024 -->

The Mailosaur Node library lets you integrate email and SMS testing into your continuous integration process.

Tools to support code coverage in Storybook

The Karma command line interface.

Temporal.io SDK Testing sub-package

Check if a process is running

Flush promises in tests

Test Redux Saga with an easy plan

An unofficial React 18 adapter for Enzyme, that you probably shouldn't use.

The powerful, easy-to-use testing framework.

Mock HTTP server for testing HTTP clients and stubbing webservices

A set of tools for emulating browser behavior in jsdom environment

Run gherkin-syntaxed specs with cypress.io

Test'em 'scripts! Javascript Unit testing made easy.

A port of Node v6's internal _deepEqual function in a universal style

Chai plugin for JSON Schema v4

Marble testing helpers for RxJS and Jasmine

Pact for all things Javascript

Render React components in Vitest Browser Mode

Redis module for Testcontainers

Persistent storage for Appium extensions

Integrate Vitest with Storybook

Simple and complete Svelte testing utilities that encourage good testing practices.

A lightweight Jest mock for unit testing Express

Power Assert in JavaScript

Extends Cypress' cy commands with localStorage methods. Allows preserving localStorage between tests

Supercharged End 2 End Testing Framework for NodeJS

Elastic synthetic monitoring agent

Fake data generator

Automated browser testing for the modern web development stack.

AngularJS mocks for testing

Chai assertion that provides Jest's snapshot testing

Power Assert output formatter

Cypress test reporter for CircleCI

Preview your Jest tests in a browser

REST API Testing Tool for all levels in a Test Pyramid

Power Assert feature enhancer for assert function/object

Skip the rest of Cypress tests on first failure

Test React components using Cypress

Visual regression testing tool with cypress

Babel plugin for power-assert

A function to test for identical deep equality (based on lodash's isEqual).

Show some ❤️ to process errors

Hardhat utils for testing

Extends Chai with an assertion for deeply matching objects (i.e. subset equality checking)

The api for the extendable JavaScript mutation testing framework Stryker

Easy to use Node.js based end-to-end testing solution for web applications using the W3C WebDriver API.

Validates a deep structured JSON pattern

The extendable JavaScript mutation testing framework

date / time comparison matchers for chai

Jest runner for Angular build facade. Allows ng test run with Jest instead of Karma

Testing Matchers for Enzyme

WebDriver/Selenium 2 node.js client

LocalStack module for Testcontainers

Hardhat utils for testing

Generate fast-check arbitraries from Zod schemas.

Runtime Environment for enzyme tests in jest

React Apollo testing utilities.

Utility to make vitest tests fail when console.error() or console.warn() are used

mock stdout and stderr

Simplifying the use of mocks with Node.js

A Test-Anything-Protocol library for JavaScript

Convert assert to power-assert on ESTree AST

Applitools Eyes SDK for Playwright

BDD Testing with Playwright runner

Power Assert instrumentor from source to source, with source-map

Extends Cypress' cy commands that let you integrate email and SMS testing into your continuous integration process.

Property based testing for Jest based on fast-check

Compliance tests for textlint's AST(Abstract Syntax Tree).

a simple chai plugin for better array assertions

A flexible plugin that drives your tests with human-written commands, enhanced by the power of large language models (LLMs)

High Level DOM Assertions for QUnit

Nodejs bindings for LambdaTest Tunnel

To compare dom and shadow dom trees. Part of open-wc recommendations

Power Assert feature instrumentor based on the ECMAScript AST

Ignore imported style files when running in Node

Official Cypress schematic for the Angular CLI

An NSubstitute port to TypeScript called substitute.js.

A forked of Chai 5 which adds Promise support in order to work with Nightwatch commands.

A tool to mock a JWKS for development of microservices who consume jwts signed with RSA

DOM assertions for the Chai assertion library using vanilla JavaScript

Filter out unwanted `console.log()` output

Zero-dependency (req,res) handler callback agent for use in client requests

Power Assert feature instrumentor on the fly

Spies for the Chai assertion library.

Library to help unit testing when using apollo-client

Check if a value is an `Error` instance

Mocha tests in Electron.

MySQL module for Testcontainers

Testing Helpers following open-wc recommendations

Testing following open-wc recommendations

Shared resources of db-migrate for drivers and also used internally.

Mock axios requests for testing

Simple and complete Preact DOM testing utilities that encourage good testing practices.

With Bruno CLI, you can now run your API collections with ease using simple command line commands.

Use custom tags to slice up Cypress test runs.

Utilities to help you create E2E test suites for apps using Clerk

Calibre - Page speed performance testing with Google Lighthouse

A library to download and launch Sauce Connect.

Capture and assert HTTP ajax calls in webdriver.io 🕸

Node.js SDK for visual testing with Argos.


Utility library emit test data through @wire adapters in Lightning web component tests

An implementation of https://github.com/emberjs/rfcs/pull/726

SMTP Server and Web Interface for reading and testing emails during development

An extension of DOM-testing-library to provide hooks into the shadow dom

A11y tests for chai

Shallow deep equal assertion for chai

a library of conditions that are useful for end-to-end tests

Extends Chai with lint-friendly terminating assertions.

UI for testing API in Cypress

Applitools Eyes SDK for Puppeteer

A Storybook addon, Save the screenshot image of your stories! via puppeteer.

An RxJS marble testing library for any test framework

Playwright SDK for visual testing with Argos.

Stub behaviors of Vitest mock functions with a small, readable API.

Marble testing helpers library for RxJs and Jest

Runs Mocha unit tests but randomizes their order

Allure Cucumber.JS integration

Kafka module for Testcontainers

Hardhat Plugin For Replicable Deployments And Tests

Confidently unit and integration test your Next.js API routes/handlers in an isolated Next.js-like environment

Provides 'specflow' like bindings for CucumberJS 7.0.0+ in TypeScript 1.7+.

Generate test data for your tests easily.

Parse test results from JUnit, TestNG, xUnit, cucumber and many more

A HTML reporting module for Cypress-Image-Diff to parse the JSON output to a beautiful report

Knapsack Pro Core library splits tests across CI nodes and makes sure that tests will run in optimal time on each CI node. This library gives core features like communication with KnapsackPro.com API. This library is a dependency for other projects specif

A testing utility for nest-commander. It builds on top of ideas from @nestjs/testing and is not tied to any test framework directly.

fail cypress test on console error

Applitools Eyes SDK for TestCafe

Allure Vitest integration

Jest utility for creating variations of the same test

the open source API testing client

Chai.js assertions for enzyme

NATS module for Testcontainers

Provides a method to inject and analyze web pages using axe

A client-side server to help you build, test and demo your Ember app

Visual Regression Testing for Storybook

file system assertions for chai

Allure Jest integration

Custom Jasmine matchers for testing DOM elements

Run Mocha tests

The Cypress plugin for generating HTTP Archive (HAR) files is a tool that allows developers and QA engineers to capture detailed information about network requests made during the execution of Cypress tests.

puppeteer + dom-testing-library

Temporal.io SDK code coverage integration

A simple mocking library for TypeScript

tRPC API for Mock Service Worker (MSW).

LambdaTest Rest Client for Node.js

MongoDB module for Testcontainers

An in-memory implementation of webextension-polyfill for testing. Supports all test frameworks (Vitest, Jest, etc)

An ember-cli addon to test against multiple dependencies, such as ember and ember-data.

A library of utilities for testing with the ngx-translate i18n Angular library

Common code for jest-openapi and Chai OpenAPI Response Validator

Test your time critical app by overriding the native Javascript Date function