JSPM

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

Mock axios requests for testing

Library to help unit testing when using apollo-client

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

Runs Mocha unit tests but randomizes their order

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

Use custom tags to slice up Cypress test runs.

Calibre - Page speed performance testing with Google Lighthouse

MySQL module for Testcontainers

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

A library to download and launch Sauce Connect.

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

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

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

UI for testing API in Cypress

An RxJS marble testing library for any test framework

Allure Cucumber.JS integration

Marble testing helpers library for RxJs and Jest

A11y tests for chai

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

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

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

Applitools Eyes SDK for Puppeteer

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

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.

Applitools Eyes SDK for TestCafe

Run Mocha tests

Allure Jest integration

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

A simple mocking library for TypeScript

Jest utility for creating variations of the same test

Custom Jasmine matchers for testing DOM elements

Visual Regression Testing for Storybook

Asynchronous BDD & continuous integration for node.js

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)

MongoDB module for Testcontainers

tRPC API for Mock Service Worker (MSW).

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

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

Generate fake data deterministically from a given input

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

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

Write Beautiful Specs with Custom Matchers for Jest

Visual Debugging Experience for Vitest 🧪🖼⚡️

A mock ens implementation for testing.

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

jest wrapper for fetch-mock

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

Assert utility from yeoman

A Jest integration to run assertions in Edge Runtime context.

Sweeter, faster and simpler than truffle.

Mock smart contracts in a smart way.

Implementation of core APIs for the Japa tests runner

Property based testing for Vitest based on fast-check

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

Visual diffing for UI components

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

The react client only integration for api references

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

Jest matchers for asserting that HTTP responses satisfy an OpenAPI spec

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

Allure Cypress integration

Write useful test matchers compatible with Jest and Jasmine.

Virtual U2F token for automated testing of U2F/Fido APIs

Tooling for testing Inngest functions.

io-ts codec to fast-check arbitrary mapping

Provides additional types for TypeScript.

Provides a method to inject and analyze web pages using axe

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

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

A library for handling GraphQL requests with Mirage JS

React Hooks for shallow rendering

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

Cypress custom command and hooks to remove downloads folder

Vitest wrapper for fetch-mock

utilities for parsing shorthand Selenium capabilities objects

Snapshots saved against an object

Tizen support for Appium

A lightweight image comparison tool

Allure Mocha integration

testing tool for textlint rule.

Adds testing helpers for driving Stripe Elements with Cypress.

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

Selenium in an npm package

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

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

Core components for the preceptor test runner and aggregator

Mock Server supporting multiple route variants and mocks

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

A CLI for accessibility testing using axe-core

Accessibility testing for Ember applications

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

Mocks Server plugin providing an administration REST API

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

Render Svelte components in Vitest Browser Mode

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

Execute jasmine with ts-node

Serve and run your Jasmine specs in a browser

mocha integration for sinon

Property-based testing for JavaScript.

Elasticsearch module for Testcontainers

Plugin for batching and executing Appium driver commands

MSSQL Server module for Testcontainers

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

Pluggable mock server supporting multiple route variants and mocks

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

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

Mocks Server plugin providing proxy variant handler

DOM-less simple JavaScript BDD testing framework for Node

Convert ANSI escape sequences to human readable text

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

Dynamodb local plugin for devops

Easy test setup without side effects

Run DynamoDB local for development and testing

Types for testing TypeScript types.

A Karma plugin for testing responsive features and layout

Jest snapshot serializer for ANSI escape sequences

Save / load named snapshots, useful for tests

Reusable utilities to help level up NestJS Testing

Transforms BDD input into data-driven snapshot

A Webpack loader for injecting code into modules via their dependencies

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

Core framework for decorator based object oriented testing

Automatically bump up global Jest thresholds whenever coverage goes above them

Run TAP unit tests in 1789+ browsers

GCloud module for Testcontainers

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

provides snapshot testing like jest

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

Utilities to help testing Firebase projects with Cypress.

A networking layer for Cypress using MSW

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

Allure Commandline Tool

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

Chai assertions for byte arrays equality

Makes Jest throw on React prop-type failures

A no-brainer way of testing your Sagas

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

Protractor framework for Cucumber.js

Allure Newman integration

in memory localStorage polyfill for node.js utilizing ES6 proxies

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

Cypress DOM snapshots and consistent image diffing in the cloud

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

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

DOM testing utilities with API that mirrors React Testing Library

Fake data generator (Browserify friendly)

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

jQuery assertions for the Chai assertion library

Backbone assertions for the Chai assertion library

Serenity/JS universal assertion library supporting all types of functional tests, including both web and REST API scenarios

Super simple wrapper around Jasmine 1.3 for Node

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

Test your AWS Lambda Functions for reals!

Render Vue components in Vitest Browser Mode

Framework-agnostic testing tools for Kefir

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

Test helpers for your integration tests that fire native events

A happo.io plugin for projects using Storybook

A utility that provides stable screenshot capture functionality using `@storybook/test-runner`.

a simple chai plugin for asserting on types

Util-functions that are be useful in async tests

Sentry instrumentation for jest

A lightweight Vitest mock for unit testing Express

RabbitMQ module for Testcontainers

A simple element to fixture DOM for tests

A Karma plugin. Launcher for Webkit.

Extends chai with assertions that allow for floating point rounding errors

A dead simple benchmarking framework

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

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

Run Jasmine tests

Frisby.js v2.0: REST API Endpoint Testing built on Jasmine

Power Assert output renderers

Script to catch uncommitted/unversioned files, for CI

Allure codeceptjs integration

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

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

Testing helpers for use with React's shallowRender test utils.

Jest assertions for the mocking library Sinon.js

Redpanda module for Testcontainers

Change assertions for the Chai assertion library

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

ClickHouse module for Testcontainers

Expect-like assertions that works seamlessly in node and browsers

simple browser testing

A Karma plugin - Additional matchers for the Jasmine BDD JavaScript testing library.

Property based testing for AVA based on fast-check

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

Object oriented testing for the Mocha test framework

Noiseless testing framework

Chai matchers to make matching fetch responses clear & easy

Makes sure test DOM attributes (e.g. data-test-id) are added to interactive DOM elements.

Evaluate Javascript in PhantomJS, and print the output.

Pipe javascript into phantomjs, print the output, writing test coverage to disk along the way

Jest transformer for Webpack Worker loader

Mock CSS Modules for testing.

Serenity/JS Screenplay Pattern library offering a flexible, web driver-agnostic approach for interacting with web-based user interfaces and components, suitable for various testing contexts

Accurate and predictable testing of requestAnimationFrame and cancelAnimationFrame

Serenity/JS test runner adapter for seamless integration with any version of Cucumber.js, facilitating BDD-style test automation and leveraging Serenity/JS reporting capabilities

Serenity/JS reporting module that produces detailed Serenity BDD test reports and living documentation, enhancing transparency and traceability of test results

Cypress commands for Storybook projects

A collection of helpers for testing Aurelia apps and components.

A mocked version of the standardized-audio-context module.

JavaScript library to mock web3 responses either by emulating web3 wallets or web3 RPC requests.

Shared utilities for adapter and module testing in ioBroker

Angular library which drastically improves execution time of your component's unit tests

JavaScript Testing utilities for React