JSPM

Validates a deep structured JSON pattern

React Apollo testing utilities.

WebDriver/Selenium 2 node.js client

Testing Matchers for Enzyme

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

LocalStack module for Testcontainers

The api for the extendable JavaScript mutation testing framework Stryker

Hardhat utils for testing

The extendable JavaScript mutation testing framework

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

Runtime Environment for enzyme tests in jest

Simplifying the use of mocks with Node.js

mock stdout and stderr

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

Nodejs bindings for LambdaTest Tunnel

High Level DOM Assertions for QUnit

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

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

Ignore imported style files when running in Node

Official Cypress schematic for the Angular CLI

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.

Library to help unit testing when using apollo-client

DOM assertions for the Chai assertion library using vanilla JavaScript

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

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 🕸

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

Calibre - Page speed performance testing with Google Lighthouse

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

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

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

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

Allure Cucumber.JS integration

UI for testing API in Cypress

Hardhat Plugin For Replicable Deployments And Tests

Kafka module for Testcontainers

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+.

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

Generate test data for your tests easily.

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.

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 TestCafe

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.

Run Mocha tests

Custom Jasmine matchers for testing DOM elements

puppeteer + dom-testing-library

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.

Asynchronous BDD & continuous integration for node.js

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

MongoDB module for Testcontainers

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

jest wrapper for fetch-mock

Common code for jest-openapi and Chai OpenAPI Response Validator

io-ts codec to fast-check arbitrary mapping

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.

Write Beautiful Specs with Custom Matchers for Jest

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

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

Mock smart contracts in a smart way.

Visual Debugging Experience for Vitest 🧪🖼⚡️

Write Beautiful Specs with Custom Matchers

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

Sweeter, faster and simpler than truffle.

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

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

Implementation of core APIs for the Japa tests runner

Visual diffing for UI components

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

The react client only integration for api references

A mock ens implementation for testing.

Assert utility from yeoman

Generate fake data deterministically from a given input

Service Worker Mock ========================= A mock service worker environment generator.

This ember-cli addon eases the construction of page objects on your acceptance and integration tests

A Jest integration to run assertions in Edge Runtime context.

Jest matchers for asserting that HTTP responses satisfy an OpenAPI spec

React Hooks for shallow rendering

> Generate pact contracts from the recorded mock service worker interactions.

Property based testing for Vitest based on fast-check

A library for handling GraphQL requests with Mirage JS

Tooling for testing Inngest functions.

Snapshots saved against an object

A standalone utility to manage Xvfb (X Virtual Framebuffer) for headless testing

Write useful test matchers compatible with Jest and Jasmine.

utilities for parsing shorthand Selenium capabilities objects

Provides additional types for TypeScript.

A better way to use the WireMock simulator to test your HTTP APIs

<p align="center"> <img width="200" src="https://raw.githubusercontent.com/suites-dev/suites/master/logo.png" alt="Logo" /> </p>

Vitest wrapper for fetch-mock

Allure Cypress integration

Cypress custom command and hooks to remove downloads folder

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

testing tool for textlint rule.

Simple asynchronous testing framework. Never again count your asserts! This tiny testing library is fully callback-based and has a rich API for asserts.

Adds value / object / DOM element snapshot testing support to Cypress test runner

Allure Mocha integration

Virtual U2F token for automated testing of U2F/Fido APIs

Provides a method to inject and analyze web pages using axe

A lightweight image comparison tool

Mock Server supporting multiple route variants and mocks

Tizen support for Appium

Adds testing helpers for driving Stripe Elements with Cypress.

Accessibility testing for Ember applications

Mocks Server plugin providing an administration REST API

A CLI for accessibility testing using axe-core

Selenium in an npm package

Property-based testing for JavaScript.

Pa11y-ci reporter that generates HTML reports - summary report and detailed reports for each page

Test utils for react-beautiful-dnd built with react-testing-library.

Serve and run your Jasmine specs in a browser

Core components for the preceptor test runner and aggregator

Execute jasmine with ts-node

Render Svelte components in Vitest Browser Mode

MSSQL Server module for Testcontainers

Run load tests for your web application. Mostly ab-compatible interface, with an option to force requests per second. Includes an API for automated load testing.

Smarter snapshot utility for Mocha and BDD test runners

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

Setup helper for PollyJS when using in jest/jasmine test environment

Elasticsearch module for Testcontainers

mocha integration for sinon

Plugin for batching and executing Appium driver commands

Generates tokens for `X-TB-TOKEN-AUTH` header when using OpenTok REST API.

Dynamodb local plugin for devops

Mocks Server plugin providing proxy variant handler

Run DynamoDB local for development and testing

The core Serenity/JS framework, providing the Screenplay Pattern interfaces, as well as the test reporting and integration infrastructure

Pluggable mock server supporting multiple route variants and mocks

DOM-less simple JavaScript BDD testing framework for Node

Easy test setup without side effects

Transforms BDD input into data-driven snapshot

Run TAP unit tests in 1789+ browsers

This is a library of accessibility-related testing and utility code.

A Karma plugin for testing responsive features and layout

A Webpack loader for injecting code into modules via their dependencies

Reusable utilities to help level up NestJS Testing

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

Types for testing TypeScript types.

A sandboxed Node.js module loader that lets you inject dependencies into your modules.

A networking layer for Cypress using MSW

Extensible mock req / res objects for use in unit tests of Express controller and middleware functions.

GCloud module for Testcontainers

Automatically bump up global Jest thresholds whenever coverage goes above them

Save / load named snapshots, useful for tests

Core framework for decorator based object oriented testing

@web/test-runner plugin to allow the build to be done by Vite

Utilities to help testing Firebase projects with Cypress.

Convert ANSI escape sequences to human readable text

provides snapshot testing like jest

Jest snapshot serializer for ANSI escape sequences

Chai assertions for byte arrays equality

Get a list of objects describing the OS and browser platforms on Sauce Labs using "zuul" format

The jQuery Mockjax Plugin provides a simple and extremely flexible interface for mocking or simulating ajax requests and responses.

Plugin for validating API schemas from API documentation

react-native-test-app provides a test app for all supported platforms as a package

Util-functions that are be useful in async tests

DOM testing utilities with API that mirrors React Testing Library

Allure Newman integration

Makes Jest throw on React prop-type failures

Protractor framework for Cucumber.js

Fake data generator (Browserify friendly)

Cypress DOM snapshots and consistent image diffing in the cloud

Allure Commandline Tool

jQuery assertions for the Chai assertion library

Extends chai with assertions that allow for floating point rounding errors

A codemod to transform test files written in Protractor into WebdriverIO tests

Accurate and predictable testing of requestAnimationFrame and cancelAnimationFrame

Run Jasmine tests

Serenity/JS Screenplay Pattern library for interacting with REST and other HTTP-based services, supporting comprehensive API testing and blended testing scenarios

Super simple wrapper around Jasmine 1.3 for Node

Intern. A next-generation code testing stack for JavaScript.

A no-brainer way of testing your Sagas

Serenity/JS console reporter that displays test results directly in the standard output

Gatling JS is a JavaScript/TypeScript interface for the [Gatling load testing tool](https://gatling.io/).

RabbitMQ module for Testcontainers

Jest assertions for the mocking library Sinon.js

in memory localStorage polyfill for node.js utilizing ES6 proxies

Command-line (CLI) for visual testing with Argos.

Power Assert output renderers

Backbone assertions for the Chai assertion library

Test your AWS Lambda Functions for reals!

Framework-agnostic testing tools for Kefir

[](https://badge.fury.io/js/mercurius-integration-testing) [](https://codecov.i

A happo.io plugin for projects using Storybook

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

Change assertions for the Chai assertion library

Npm module for calculating chi-square test that gives us p-value for statistical significance with practical use in A/B testing.

Gatling JS is a JavaScript/TypeScript interface for the [Gatling load testing tool](https://gatling.io/).