JSPM

Delightful JavaScript Testing.

Delightful JavaScript Testing.

Accessibility engine for automated Web UI testing

Delightful JavaScript Testing.

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

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.

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

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

Custom jest matchers to test the state of the DOM

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.

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

Fake XHR and server

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

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

the Istanbul command line interface

Simple JavaScript testing framework for browsers and node.js

Spectacular Test Runner for JavaScript.

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

Property based testing framework for JavaScript (like QuickCheck)

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

JavaScript Testing utilities for React

Extends Chai with assertions about promises.

Additional Jest matchers

The official WebDriver JavaScript bindings from the Selenium project

Easy and powerful mocking of AWS SDK v3 Clients

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

The official JavaScript implementation of Cucumber.

Jest preset configuration for Angular projects

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

Allure JS Commons

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

JavaScript Testing utilities for React

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

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

Mock http requests made using fetch

WebDriverJS adapter for Jasmine2.

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

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

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.

convert enzyme wrapper to a format compatible with Jest snapshot

Provides a method to inject and analyze web pages using axe

Various type declarations used across Appium

Testing module for Pinia

Appium Configuration Schema

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

Command-line companion utility for Postman

Mock implementation of the Next.js Router

strings comparison matchers for chai

Support libs used across appium packages

JavaScript Testing utilities for React

Custom Jest matchers for AWS SDK v3 Client mock

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, jasm

HeartBeat

Allure Playwright integration

Reusable utilities to help level up NestJS Testing

Base driver class for Appium drivers

A Karma plugin. Launcher for Firefox.

A Test-Anything-Protocol library for JavaScript

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

Nodejs bindings for BrowserStack Local

JavaScript Testing utilities for React

time utils

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

Shared TypeScript Config for Appium

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

Applitools universal framework wrapper

Applitools universal screenshoter for web and native applications

A Universal Logger For The Appium Ecosystem

Automation for Apps.

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

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

Simulate react-select events for react-testing-library

The Karma command line interface.

Documentation generation utilities for Appium and related projects

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

The base plugin used to create Appium 2.0 plugins

Flush promises in tests

The powerful, easy-to-use testing framework.

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

<!-- markdownlint-disable MD024 -->

Test Redux Saga with an easy plan

Android UiAutomator and Chrome support for Appium

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

Tools to support code coverage in Storybook

PostgreSQL module for Testcontainers

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

Runtime Environment for enzyme tests in jest

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

Run gherkin-syntaxed specs with cypress.io

Check if a process is running

Testing Matchers for Enzyme

Power Assert feature enhancer for assert function/object

AngularJS mocks for testing

Chai plugin for JSON Schema v4

Temporal.io SDK Testing sub-package

Automated browser testing for the modern web development stack.

Supercharged End 2 End Testing Framework for NodeJS

Library to help unit testing when using apollo-client

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

Marble testing helpers for RxJS and Jasmine

A lightweight Jest mock for unit testing Express

Pact for all things Javascript

Fake data generator

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

Mock HTTP server for testing HTTP clients and stubbing webservices

Persistent storage for Appium extensions

Integrate Vitest with Storybook

Cypress test reporter for CircleCI

REST API Testing Tool for all levels in a Test Pyramid

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

A set of tools for emulating browser behavior in jsdom environment

Skip the rest of Cypress tests on first failure

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

Power Assert in JavaScript

A Test-Anything-Protocol library for JavaScript

Redis module for Testcontainers

Validates a deep structured JSON pattern

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

Show some ❤️ to process errors

mock stdout and stderr

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

Power Assert output formatter

Preview your Jest tests in a browser

Power Assert feature enhancer for assert function/object

date / time comparison matchers for chai

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

Elastic synthetic monitoring agent

The api for the extendable JavaScript mutation testing framework Stryker

The extendable JavaScript mutation testing framework

High Level DOM Assertions for QUnit

Spies for the Chai assertion library.

Nodejs bindings for LambdaTest Tunnel

Test React components using Cypress

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

Applitools Eyes SDK for Playwright

Filter out unwanted `console.log()` output

Ignore imported style files when running in Node

Simplifying the use of mocks with Node.js

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

a simple chai plugin for better array assertions

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

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

Hardhat utils for testing

Visual regression testing tool with cypress

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

LocalStack module for Testcontainers

Official Cypress schematic for the Angular CLI

Render React components in Vitest Browser Mode

Hardhat utils for testing

Provides a method to inject and analyze web pages using axe

React Apollo testing utilities.

Use custom tags to slice up Cypress test runs.

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

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

Mock axios requests for testing

An NSubstitute port to TypeScript called substitute.js.

DOM assertions for the Chai assertion library using vanilla JavaScript

A mock provider for your blockchain testing needs.

WebDriver/Selenium 2 node.js client

Testing Helpers following open-wc recommendations

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

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

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


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

Sweeter, faster and simpler than truffle.

Hardhat Plugin For Replicable Deployments And Tests

Mock smart contracts in a smart way.

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

A library to download and launch Sauce Connect.

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

Extends Chai with lint-friendly terminating assertions.

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

MySQL module for Testcontainers

A mock ens implementation for testing.

Capture and assert HTTP ajax calls in webdriver.io 🕸

Node.js SDK for visual testing with Argos.

Calibre - Page speed performance testing with Google Lighthouse

A simple mocking library for TypeScript

Testing following open-wc recommendations

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

Babel plugin for power-assert

BDD Testing with Playwright runner

Shallow deep equal assertion for chai

Applitools Eyes SDK for Puppeteer

Write Beautiful Specs with Custom Matchers

Generate fast-check arbitraries from Zod schemas.

UI for testing API in Cypress

Custom Jasmine matchers for testing DOM elements

Marble testing helpers library for RxJs and Jest

A11y tests for chai

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

file system assertions for chai

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

Write useful test matchers compatible with Jest and Jasmine.

An RxJS marble testing library for any test framework

Visual diffing for UI components

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

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

Kafka module for Testcontainers

fail cypress test on console error

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.

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

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

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

Generate test data for your tests easily.

Convert assert to power-assert on ESTree AST

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

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

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

Property based testing for Jest based on fast-check

Playwright SDK for visual testing with Argos.

Run Mocha tests

Temporal.io SDK code coverage integration

the open source API testing client

puppeteer + dom-testing-library

Common code for jest-openapi and Chai OpenAPI Response Validator

Power Assert feature instrumentor based on the ECMAScript AST

LambdaTest Rest Client for Node.js

Applitools Eyes SDK for TestCafe

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

Visual Regression Testing for Storybook

Chai.js assertions for enzyme

MongoDB module for Testcontainers

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

Assert utility from yeoman

Automatically bump up global Jest thresholds whenever coverage goes above them

Chai assertion that provides Jest's snapshot testing

Knapsack Pro Jest splits Jest tests across CI nodes and makes sure that tests will run in optimal time on each CI node.

Power Assert feature instrumentor on the fly

Asynchronous BDD & continuous integration for node.js

io-ts codec to fast-check arbitrary mapping

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