JSPM

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

Visual regression testing tool with cypress

REST API Testing Tool for all levels in a Test Pyramid

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.

Runtime Environment for enzyme tests in jest

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

WebDriver/Selenium 2 node.js client

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

Hardhat utils for testing

BDD Testing with Playwright runner

The extendable JavaScript mutation testing framework

Convert assert to power-assert on ESTree AST

mock stdout and stderr

Property based testing for Jest based on fast-check

Applitools Eyes SDK for Playwright

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)

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

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

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

DOM assertions for the Chai assertion library using vanilla JavaScript

Check if a value is an `Error` instance

MySQL module for Testcontainers

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

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

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

Use custom tags to slice up Cypress test runs.

Calibre - Page speed performance testing with Google Lighthouse

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

Shallow deep equal assertion for chai

Capture and assert HTTP ajax calls in webdriver.io 🕸

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

A11y tests for chai

UI for testing API in Cypress

Kafka module for Testcontainers

Marble testing helpers library for RxJs and Jest

Playwright SDK for visual testing with Argos.

An RxJS marble testing library for any test framework

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

Allure Cucumber.JS integration

Hardhat Plugin For Replicable Deployments And Tests

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

Runs Mocha unit tests but randomizes their order

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

Applitools Eyes SDK for Puppeteer

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

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

Visual Regression Testing for Storybook

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.

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

A simple mocking library for TypeScript

LambdaTest Rest Client for Node.js

Temporal.io SDK code coverage integration

MongoDB module for Testcontainers

Write Beautiful Specs with Custom Matchers for Jest

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

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

Common code for jest-openapi and Chai OpenAPI Response Validator

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.

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

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

Sweeter, faster and simpler than truffle.

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

A mock ens implementation for testing.

Mock smart contracts in a smart way.

Generate fake data deterministically from a given input

A Jest integration to run assertions in Edge Runtime context.

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

Jest matchers for asserting that HTTP responses satisfy an OpenAPI spec

Snapshots saved against an object

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

Property based testing for Vitest based on fast-check

Write useful test matchers compatible with Jest and Jasmine.

A library for handling GraphQL requests with Mirage JS

React Hooks for shallow rendering

Allure Cypress integration

Provides additional types for TypeScript.

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

utilities for parsing shorthand Selenium capabilities objects

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

Tooling for testing Inngest functions.

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

Cypress custom command and hooks to remove downloads folder

testing tool for textlint rule.

Vitest wrapper for fetch-mock

Mocks Server plugin providing an administration REST API

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

A lightweight image comparison tool

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

Tizen support for Appium

Allure Mocha integration

Provides a method to inject and analyze web pages using axe

Accessibility testing for Ember applications

Adds testing helpers for driving Stripe Elements with Cypress.

Virtual U2F token for automated testing of U2F/Fido APIs

Mock Server supporting multiple route variants and mocks

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

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

Core components for the preceptor test runner and aggregator

A CLI for accessibility testing using axe-core

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

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

Execute jasmine with ts-node

Serve and run your Jasmine specs in a browser

mocha integration for sinon

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

Smarter snapshot utility for Mocha and BDD test runners

Render Svelte components in Vitest Browser Mode

Elasticsearch 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.

MSSQL Server module for Testcontainers

Plugin for batching and executing Appium driver commands

Pluggable mock server supporting multiple route variants and mocks

DOM-less simple JavaScript BDD testing framework for Node

Mocks Server plugin providing proxy variant handler

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

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

Dynamodb local plugin for devops

Easy test setup without side effects

A Webpack loader for injecting code into modules via their dependencies

Run DynamoDB local for development and testing

Run TAP unit tests in 1789+ browsers

Types for testing TypeScript types.

A Karma plugin for testing responsive features and layout

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

Reusable utilities to help level up NestJS Testing

Transforms BDD input into data-driven snapshot

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

Core framework for decorator based object oriented testing

A networking layer for Cypress using MSW

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

Save / load named snapshots, useful for tests

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

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

Convert ANSI escape sequences to human readable text

provides snapshot testing like jest

Chai assertions for byte arrays equality

Utilities to help testing Firebase projects with Cypress.

Jest snapshot serializer for ANSI escape sequences

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.

Allure Commandline Tool

Util-functions that are be useful in async tests

DOM testing utilities with API that mirrors React Testing Library

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

Plugin for validating API schemas from API documentation

Noiseless testing framework

Makes Jest throw on React prop-type failures

Cypress DOM snapshots and consistent image diffing in the cloud

jQuery assertions for the Chai assertion library

Allure Newman integration

Protractor framework for Cucumber.js

Fake data generator (Browserify friendly)

A no-brainer way of testing your Sagas

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

A Karma plugin. Launcher for Webkit.