JSPM

Delightful JavaScript Testing.

Delightful JavaScript Testing.

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

Accessibility engine for automated Web UI testing

Delightful JavaScript Testing.

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

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

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

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

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

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

SuperAgent driven library for testing HTTP servers

JavaScript test spies, stubs and mocks.

Fake XHR and server

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

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.

Easy and powerful mocking of AWS SDK v3 Clients

JavaScript Testing utilities for React

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

The official WebDriver JavaScript bindings from the Selenium project

Allure JS Commons

The official JavaScript implementation of Cucumber.

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

Jest preset configuration for Angular projects

Provides a method to inject and analyze web pages using axe

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

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

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

Various type declarations used across Appium

JavaScript Testing utilities for React

Appium Configuration Schema

Mock http requests made using fetch

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

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

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

WebDriverJS adapter for Jasmine2.

A client for working with the BrowserStack APIs.

JavaScript Testing utilities for React

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

Mock implementation of the Next.js Router

Testing module for Pinia

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

convert enzyme wrapper to a format compatible with Jest snapshot

Command-line companion utility for Postman

Support libs used across Appium packages

strings comparison matchers for chai

A Test-Anything-Protocol library for JavaScript

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

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

JavaScript Testing utilities for React

A Universal Logger For The Appium Ecosystem

Applitools universal framework wrapper

Reusable utilities to help level up NestJS Testing

HeartBeat

Applitools universal screenshoter for web and native applications

Shared TypeScript Config for Appium

Automation for Apps.

time utils

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

Custom Jest matchers for AWS SDK v3 Client mock

Documentation generation utilities for Appium and related projects

PostgreSQL module for Testcontainers

JavaScript Testing utilities for React

Simulate react-select events for react-testing-library

Storybook Vitest addon: Blazing fast component testing using stories

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

Power Assert feature enhancer for assert function/object

A Karma plugin. Launcher for Firefox.

The base plugin used to create Appium plugins

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

Check if a process is running

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 -->

Temporal.io SDK Testing sub-package

Tools to support code coverage in Storybook

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

The Karma command line interface.

Flush promises in tests

Test Redux Saga with an easy plan

The powerful, easy-to-use testing framework.

A set of tools for emulating browser behavior in jsdom environment

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

Run gherkin-syntaxed specs with cypress.io

Render React components in Vitest Browser Mode

Persistent storage for Appium extensions

Redis module for Testcontainers

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

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

Chai plugin for JSON Schema v4

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

Mock HTTP server for testing HTTP clients and stubbing webservices

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

A lightweight Jest mock for unit testing Express

Integrate Vitest with Storybook

AngularJS mocks for testing

Automated browser testing for the modern web development stack.

Supercharged End 2 End Testing Framework for NodeJS

Elastic synthetic monitoring agent

Marble testing helpers for RxJS and Jasmine

Power Assert in JavaScript

Pact for all things Javascript

Chai assertion that provides Jest's snapshot testing

Fake data generator

Power Assert output formatter

Power Assert feature enhancer for assert function/object

REST API Testing Tool for all levels in a Test Pyramid

Cypress test reporter for CircleCI

Skip the rest of Cypress tests on first failure

Test React components using Cypress

Show some ❤️ to process errors

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

Hardhat utils for testing

LocalStack module for Testcontainers

Visual regression testing tool with cypress

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

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

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

Preview your Jest tests in a browser

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

Testing Matchers for Enzyme

Property based testing for Jest based on fast-check

React Apollo testing utilities.

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

Hardhat utils for testing

Convert assert to power-assert on ESTree AST

WebDriver/Selenium 2 node.js client

Runtime Environment for enzyme tests in jest

mock stdout and stderr

Babel plugin for power-assert

Generate fast-check arbitraries from Zod schemas.

Simplifying the use of mocks with Node.js

A Test-Anything-Protocol library for JavaScript

Nodejs bindings for LambdaTest Tunnel

Power Assert feature instrumentor based on the ECMAScript AST

a simple chai plugin for better array assertions

The api for the extendable JavaScript mutation testing framework Stryker

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

The extendable JavaScript mutation testing framework

High Level DOM Assertions for QUnit

BDD Testing with Playwright runner

Applitools Eyes SDK for Playwright

Power Assert feature instrumentor on the fly

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

Ignore imported style files when running in Node

Mocha tests in Electron.

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

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

An NSubstitute port to TypeScript called substitute.js.

Official Cypress schematic for the Angular CLI

Spies for the Chai assertion library.

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

Filter out unwanted `console.log()` output

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

DOM assertions for the Chai assertion library using vanilla JavaScript

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

Check if a value is an `Error` instance

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

Library to help unit testing when using apollo-client

Mock axios requests for testing

Testing following open-wc recommendations

Testing Helpers following open-wc recommendations

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

MySQL module for Testcontainers

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

Runs Mocha unit tests but randomizes their order

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

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

Use custom tags to slice up Cypress test runs.

A library to download and launch Sauce Connect.

Calibre - Page speed performance testing with Google Lighthouse

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


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

Node.js SDK for visual testing with Argos.

Shallow deep equal assertion for chai

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

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

UI for testing API in Cypress

Marble testing helpers library for RxJs and Jest

A11y tests for chai

Extends Chai with lint-friendly terminating assertions.

An RxJS marble testing library for any test framework

Allure Cucumber.JS integration

Capture and assert HTTP ajax calls in webdriver.io 🕸

Playwright SDK for visual testing with Argos.

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

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

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

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

Kafka module for Testcontainers

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

NATS module for Testcontainers

Hardhat Plugin For Replicable Deployments And Tests

Applitools Eyes SDK for Puppeteer

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

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.

puppeteer + dom-testing-library

file system assertions for chai

Chai.js assertions for enzyme

Generate test data for your tests easily.

Allure Vitest integration

Applitools Eyes SDK for TestCafe

fail cypress test on console error

Provides a method to inject and analyze web pages using axe

the open source API testing client

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.

Jest utility for creating variations of the same test

Run Mocha tests

Allure Jest integration

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

LambdaTest Rest Client for Node.js

A simple mocking library for TypeScript

Visual Regression Testing for Storybook

Custom Jasmine matchers for testing DOM elements

Asynchronous BDD & continuous integration for node.js

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

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

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

Temporal.io SDK code coverage integration

Common code for jest-openapi and Chai OpenAPI Response Validator

MongoDB module for Testcontainers

A mock provider for your blockchain testing needs.