JSPM

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

The official JavaScript implementation of Cucumber.

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

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

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

Provides a method to inject and analyze web pages using axe

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

JavaScript Testing utilities for React

Various type declarations used across Appium

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

Mock http requests made using fetch

Appium Configuration Schema

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

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

WebDriverJS adapter for Jasmine2.

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

Support libs used across Appium packages

strings comparison matchers for chai

JavaScript Testing utilities for React

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

Reusable utilities to help level up NestJS Testing

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

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

HeartBeat

Automation for Apps.

Applitools universal screenshoter for web and native applications

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

Custom Jest matchers for AWS SDK v3 Client mock

Documentation generation utilities for Appium and related projects

Power Assert feature enhancer for assert function/object

A Karma plugin. Launcher for Firefox.

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

PostgreSQL module for Testcontainers

Storybook Vitest addon: Blazing fast component testing using stories

Simulate react-select events for react-testing-library

JavaScript Testing utilities for React

The base plugin used to create Appium plugins

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

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

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

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

<!-- markdownlint-disable MD024 -->

Android UiAutomator and Chrome support for Appium

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

A set of tools for emulating browser behavior in jsdom environment

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

The powerful, easy-to-use testing framework.

Chai plugin for JSON Schema v4

Check if a process is running

Run gherkin-syntaxed specs with cypress.io

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

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

Mock HTTP server for testing HTTP clients and stubbing webservices

Render React components in Vitest Browser Mode

Redis module for Testcontainers

Persistent storage for Appium extensions

A lightweight Jest mock for unit testing Express

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

Integrate Vitest with Storybook

Pact for all things Javascript

Marble testing helpers for RxJS and Jasmine

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

Supercharged End 2 End Testing Framework for NodeJS

Automated browser testing for the modern web development stack.

Elastic synthetic monitoring agent

Fake data generator

Chai assertion that provides Jest's snapshot testing

Power Assert in JavaScript

AngularJS mocks for testing

Cypress test reporter for CircleCI

Power Assert output formatter

REST API Testing Tool for all levels in a Test Pyramid

Visual regression testing tool with cypress

Power Assert feature enhancer for assert function/object

Skip the rest of Cypress tests on first failure

Test React components using Cypress

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

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

Show some ❤️ to process errors

Babel plugin for power-assert

Preview your Jest tests in a browser

Hardhat utils for testing

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

Testing Matchers for Enzyme

LocalStack module for Testcontainers

date / time comparison matchers for chai

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

Validates a deep structured JSON pattern

React Apollo testing utilities.

WebDriver/Selenium 2 node.js client

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

Runtime Environment for enzyme tests in jest

A Test-Anything-Protocol library for JavaScript

Generate fast-check arbitraries from Zod schemas.

Simplifying the use of mocks with Node.js

The api for the extendable JavaScript mutation testing framework Stryker

BDD Testing with Playwright runner

Hardhat utils for testing

The extendable JavaScript mutation testing framework

Convert assert to power-assert on ESTree AST

mock stdout and stderr

Applitools Eyes SDK for Playwright

Property based testing for Jest based on fast-check

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

High Level DOM Assertions for QUnit

Nodejs bindings for LambdaTest Tunnel

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)

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

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

An NSubstitute port to TypeScript called substitute.js.

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

Ignore imported style files when running in Node

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

Power Assert feature instrumentor based on the ECMAScript AST

Filter out unwanted `console.log()` output

Spies for the Chai assertion library.

Library to help unit testing when using apollo-client

Official Cypress schematic for the Angular CLI

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

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

Check if a value is an `Error` instance

DOM assertions for the Chai assertion library using vanilla JavaScript

MySQL module for Testcontainers

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

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

Power Assert feature instrumentor on the fly

Testing following open-wc recommendations

Mock axios requests for testing

Testing Helpers following open-wc recommendations

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

Mocha tests in Electron.

A library to download and launch Sauce Connect.

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

Calibre - Page speed performance testing with Google Lighthouse

Use custom tags to slice up Cypress test runs.

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

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

Node.js SDK for visual testing with Argos.

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

Extends Chai with lint-friendly terminating assertions.


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

Capture and assert HTTP ajax calls in webdriver.io 🕸

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

Shallow deep equal assertion for chai

A11y tests for chai

UI for testing API in Cypress

Marble testing helpers library for RxJs and Jest

Kafka module for Testcontainers

Playwright SDK for visual testing with Argos.

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

Allure Cucumber.JS integration

An RxJS marble testing library for any test framework

Hardhat Plugin For Replicable Deployments And Tests

Runs Mocha unit tests but randomizes their order

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

Applitools Eyes SDK for Puppeteer

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

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

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

Generate test data for your tests easily.

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

Chai.js assertions for enzyme

Jest utility for creating variations of the same test

fail cypress test on console error

Allure Vitest integration

Applitools Eyes SDK for TestCafe

Provides a method to inject and analyze web pages using axe

the open source API testing client

NATS module for Testcontainers

Custom Jasmine matchers for testing DOM elements

Allure Jest integration

Visual Regression Testing for Storybook

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

puppeteer + dom-testing-library

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

file system assertions for chai

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

A simple mocking library for TypeScript

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

Temporal.io SDK code coverage integration

LambdaTest Rest Client for Node.js

MongoDB module for Testcontainers

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

Write Beautiful Specs with Custom Matchers for Jest

Asynchronous BDD & continuous integration for node.js

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

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

Write Beautiful Specs with Custom Matchers

The 2020 Most Modern Testing Framework For Node.JS With Test Contexts (Reusable BeforeEach / AfterEach Via Separate Files); Masks (Inputs/Outputs In Non-Js Files) And Fork Testing; Interactive Snapshots.

Common code for jest-openapi and Chai OpenAPI Response Validator

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

A mock provider for your blockchain testing needs.

tRPC API for Mock Service Worker (MSW).

io-ts codec to fast-check arbitrary mapping

Generate all possible permutations of an object's key-value pairs

Assert utility from yeoman

Implementation of core APIs for the Japa tests runner

The react client only integration for api references

Visual Debugging Experience for Vitest 🧪🖼⚡️

jest wrapper for fetch-mock

A simple mock interface specifically for testing code relying on Sequelize models

JavaScript "deep equality" / structural equality tester with Node.js flavor.

Visual diffing for UI components

Sweeter, faster and simpler than truffle.

Test, mock, intercept and modify Apollo Client's operations — in both browser and unit tests!

A mock ens implementation for testing.