JSPM

Delightful JavaScript Testing.

Delightful JavaScript Testing.

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

Delightful JavaScript Testing.

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

Accessibility engine for automated Web UI testing

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

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.

JavaScript Testing utilities for React

Additional Jest matchers

The official WebDriver JavaScript bindings from the Selenium project

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

Easy and powerful mocking of AWS SDK v3 Clients

Allure JS Commons

The official JavaScript implementation of Cucumber.

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

Provides a method to inject and analyze web pages using axe

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

Various type declarations used across Appium

Mock http requests made using fetch

Appium Configuration Schema

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

JavaScript Testing utilities for React

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

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

WebDriverJS adapter for Jasmine2.

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

JavaScript Testing utilities for React

A client for working with the BrowserStack APIs.

Mock implementation of the Next.js Router

Testing module for Pinia

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

Command-line companion utility for Postman

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

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.

A Universal Logger For The Appium Ecosystem

Applitools universal framework wrapper

Applitools universal screenshoter for web and native applications

HeartBeat

JavaScript Testing utilities for React

Shared TypeScript Config for Appium

Reusable utilities to help level up NestJS Testing

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

Automation for Apps.

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

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

The base plugin used to create Appium plugins

A Karma plugin. Launcher for Firefox.

Storybook Vitest addon: Blazing fast component testing using stories

Power Assert feature enhancer for assert function/object

Check if a process is running

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 -->

Temporal.io SDK Testing sub-package

Tools to support code coverage in Storybook

The Karma command line interface.

Flush promises in tests

Test Redux Saga with an easy plan

The powerful, easy-to-use testing framework.

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

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.

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

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

Mock HTTP server for testing HTTP clients and stubbing webservices

A lightweight Jest mock for unit testing Express

Integrate Vitest with Storybook

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

AngularJS mocks for testing

Chai plugin for JSON Schema v4

Automated browser testing for the modern web development stack.

Supercharged End 2 End Testing Framework for NodeJS

Elastic synthetic monitoring agent

Chai assertion that provides Jest's snapshot testing

Marble testing helpers for RxJS and Jasmine

Power Assert in JavaScript

Power Assert output formatter

Pact for all things Javascript

Fake data generator

Power Assert feature enhancer for assert function/object

REST API Testing Tool for all levels in a Test Pyramid

Skip the rest of Cypress tests on first failure

Show some ❤️ to process errors

Test React components using Cypress

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

LocalStack module for Testcontainers

Cypress test reporter for CircleCI

Hardhat utils for testing

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

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

date / time comparison matchers for chai

Preview your Jest tests in a browser

Testing Matchers for Enzyme

Visual regression testing tool with cypress

Property based testing for Jest based on fast-check

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

Hardhat utils for testing

React Apollo testing utilities.

Runtime Environment for enzyme tests in jest

WebDriver/Selenium 2 node.js client

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

mock stdout and stderr

Generate fast-check arbitraries from Zod schemas.

Simplifying the use of mocks with Node.js

Babel plugin for power-assert

A Test-Anything-Protocol library for JavaScript

Nodejs bindings for LambdaTest Tunnel

Convert assert to power-assert on ESTree AST

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

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

High Level DOM Assertions for QUnit

Applitools Eyes SDK for Playwright

The extendable JavaScript mutation testing framework

Power Assert feature instrumentor on the fly

Ignore imported style files when running in Node

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

BDD Testing with Playwright runner

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.

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

Official Cypress schematic for the Angular CLI

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

Filter out unwanted `console.log()` output

Spies for the Chai assertion library.

DOM assertions for the Chai assertion library using vanilla JavaScript

Check if a value is an `Error` instance

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

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

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.

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

Runs Mocha unit tests but randomizes their order

Calibre - Page speed performance testing with Google Lighthouse

Use custom tags to slice up Cypress test runs.

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

A library to download and launch Sauce Connect.

MySQL module for Testcontainers

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


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

UI for testing API in Cypress

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

Allure Cucumber.JS integration

A11y tests for chai

Marble testing helpers library for RxJs and Jest

An RxJS marble testing library for any test framework

Extends Chai with lint-friendly terminating assertions.

Capture and assert HTTP ajax calls in webdriver.io 🕸

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

Playwright SDK for visual testing with Argos.

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

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

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

NATS module for Testcontainers

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

Hardhat Plugin For Replicable Deployments And Tests

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

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

Applitools Eyes SDK for Puppeteer

Kafka module for Testcontainers

file system assertions for chai

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

Chai.js assertions for enzyme

Allure Vitest integration

Generate test data for your tests easily.

fail cypress test on console error

the open source API testing client

Provides a method to inject and analyze web pages using axe

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.

Run Mocha tests

Applitools Eyes SDK for TestCafe

Allure Jest integration

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

A simple mocking library for TypeScript

Custom Jasmine matchers for testing DOM elements

Jest utility for creating variations of the same test

Asynchronous BDD & continuous integration for node.js

Visual Regression Testing for Storybook

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

LambdaTest Rest Client for Node.js

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

Common code for jest-openapi and Chai OpenAPI Response Validator

Temporal.io SDK code coverage integration

A mock provider for your blockchain testing needs.

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

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