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

simple, flexible, fun test framework

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

JavaScript test spies, stubs and mocks.

SuperAgent driven library for testing HTTP servers

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

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

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

Fake XHR and server

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

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.

Easy and powerful mocking of AWS SDK v3 Clients

JavaScript Testing utilities for React

Additional Jest matchers

Allure JS Commons

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

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

The official WebDriver JavaScript bindings from the Selenium project

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

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

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

JavaScript Testing utilities for React

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

WebDriverJS adapter for Jasmine2.

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

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

JavaScript Testing utilities for React

A client for working with the BrowserStack APIs.

Mock implementation of the Next.js Router

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

HeartBeat

Reusable utilities to help level up NestJS Testing

JavaScript Testing utilities for React

Nodejs bindings for BrowserStack Local

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

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

Allure Playwright integration

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

Automation for Apps.

Shared TypeScript Config for Appium

time utils

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

Documentation generation utilities for Appium and related projects

A Karma plugin. Launcher for Firefox.

Custom Jest matchers for AWS SDK v3 Client mock

Storybook Vitest addon: Blazing fast component testing using stories

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

Check if a process is running

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

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.

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

Temporal.io SDK Testing sub-package

The Karma command line interface.

Flush promises in tests

Test Redux Saga with an easy plan

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

Mock HTTP server for testing HTTP clients and stubbing webservices

A set of tools for emulating browser behavior in jsdom environment

The powerful, easy-to-use testing framework.

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

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

Run gherkin-syntaxed specs with cypress.io

Chai plugin for JSON Schema v4

Render React components in Vitest Browser Mode

Redis module for Testcontainers

Persistent storage for Appium extensions

Power Assert in JavaScript

A lightweight Jest mock for unit testing Express

Marble testing helpers for RxJS and Jasmine

Pact for all things Javascript

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

Integrate Vitest with Storybook

AngularJS mocks for testing

Elastic synthetic monitoring agent

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

Automated browser testing for the modern web development stack.

Supercharged End 2 End Testing Framework for NodeJS

Fake data generator

Chai assertion that provides Jest's snapshot testing

Power Assert output formatter

Cypress test reporter for CircleCI

Power Assert feature enhancer for assert function/object

Preview your Jest tests in a browser

Test React components using Cypress

Skip the rest of Cypress tests on first failure

REST API Testing Tool for all levels in a Test Pyramid

Babel plugin for power-assert

Visual regression testing tool with cypress

Hardhat utils for testing

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

Show some ❤️ to process errors

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

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

date / time comparison matchers for chai

Validates a deep structured JSON pattern

React Apollo testing utilities.

WebDriver/Selenium 2 node.js client

Testing Matchers for Enzyme

The api for the extendable JavaScript mutation testing framework Stryker

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

LocalStack module for Testcontainers

Hardhat utils for testing

The extendable JavaScript mutation testing framework

Runtime Environment for enzyme tests in jest

mock stdout and stderr

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

Simplifying the use of mocks with Node.js

Convert assert to power-assert on ESTree AST

Generate fast-check arbitraries from Zod schemas.

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

A Test-Anything-Protocol library for JavaScript

Applitools Eyes SDK for Playwright

BDD Testing with Playwright runner

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

Power Assert feature instrumentor based on the ECMAScript AST

a simple chai plugin for better array assertions

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

Nodejs bindings for LambdaTest Tunnel

High Level DOM Assertions for QUnit

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

An NSubstitute port to TypeScript called substitute.js.

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

Power Assert feature instrumentor on the fly

Official Cypress schematic for the Angular CLI

Ignore imported style files when running in Node

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

Filter out unwanted `console.log()` output

Mocha tests in Electron.

Spies for the Chai assertion library.

DOM assertions for the Chai assertion library using vanilla JavaScript

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

Library to help unit testing when using apollo-client

Check if a value is an `Error` instance

Testing following open-wc recommendations

MySQL module for Testcontainers

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

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

Testing Helpers following open-wc recommendations

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

Mock axios requests for testing

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

Use custom tags to slice up Cypress test runs.

A library to download and launch Sauce Connect.

Capture and assert HTTP ajax calls in webdriver.io 🕸

Calibre - Page speed performance testing with Google Lighthouse

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

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

Node.js SDK for visual testing with Argos.

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


Shallow deep equal assertion for chai

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

A11y tests for chai

Runs Mocha unit tests but randomizes their order

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

Extends Chai with lint-friendly terminating assertions.

Playwright SDK for visual testing with Argos.

Applitools Eyes SDK for Puppeteer

Marble testing helpers library for RxJs and Jest

Hardhat Plugin For Replicable Deployments And Tests

Kafka module for Testcontainers

Allure Cucumber.JS integration

UI for testing API in Cypress

An RxJS marble testing library for any test framework

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

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

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

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

Generate test data for your tests easily.

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

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

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

Applitools Eyes SDK for TestCafe

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

fail cypress test on console error

Allure Vitest integration

NATS module for Testcontainers

Chai.js assertions for enzyme

Provides a method to inject and analyze web pages using axe

Jest utility for creating variations of the same test

the open source API testing client

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

file system assertions for chai

Allure Jest integration

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.

Custom Jasmine matchers for testing DOM elements

puppeteer + dom-testing-library

Run Mocha tests

Temporal.io SDK code coverage integration

A simple mocking library for TypeScript

LambdaTest Rest Client for Node.js

tRPC API for Mock Service Worker (MSW).

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

Visual Regression Testing for Storybook

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

A mock provider for your blockchain testing needs.

A sweet set of chai matchers for your blockchain testing needs.

MongoDB module for Testcontainers

Asynchronous BDD & continuous integration for node.js