JSPM

Test Redux Saga with an easy plan

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

Redis module for Testcontainers

Chai plugin for JSON Schema v4

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

The powerful, easy-to-use testing framework.

Mock HTTP server for testing HTTP clients and stubbing webservices

A lightweight Jest mock for unit testing Express

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

Run gherkin-syntaxed specs with cypress.io

Render React components in Vitest Browser Mode

Elastic synthetic monitoring agent

Persistent storage for Appium extensions

Power Assert in JavaScript

Marble testing helpers for RxJS and Jasmine

Pact for all things Javascript

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

AngularJS mocks for testing

Integrate Vitest with Storybook

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

Automated browser testing for the modern web development stack.

Supercharged End 2 End Testing Framework for NodeJS

Fake data generator

Chai assertion that provides Jest's snapshot testing

Cypress test reporter for CircleCI

Test React components using Cypress

Power Assert output formatter

Power Assert feature enhancer for assert function/object

Visual regression testing tool with cypress

Preview your Jest tests in a browser

Skip the rest of Cypress tests on first failure

REST API Testing Tool for all levels in a Test Pyramid

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

Hardhat utils for testing

Babel plugin for power-assert

Testing Matchers for Enzyme

Show some ❤️ to process errors

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

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

date / time comparison matchers for chai

Validates a deep structured JSON pattern

React Apollo testing utilities.

WebDriver/Selenium 2 node.js client

Convert assert to power-assert on ESTree AST

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

LocalStack module for Testcontainers

Hardhat utils for testing

The api for the extendable JavaScript mutation testing framework Stryker

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

The extendable JavaScript mutation testing framework

Simplifying the use of mocks with Node.js

Runtime Environment for enzyme tests in jest

BDD Testing with Playwright runner

mock stdout and stderr

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

Property based testing for Jest based on fast-check

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

Power Assert feature instrumentor based on the ECMAScript AST

a simple chai plugin for better array assertions

Official Cypress schematic for the Angular CLI

Nodejs bindings for LambdaTest Tunnel

High Level DOM Assertions for QUnit

Filter out unwanted `console.log()` output

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).

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

An NSubstitute port to TypeScript called substitute.js.

Check if a value is an `Error` instance

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

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

Mocha tests in Electron.

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

MySQL module for Testcontainers

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

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

Testing following open-wc recommendations

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

Testing Helpers following open-wc recommendations

Mock axios requests for testing

Node.js SDK for visual testing with Argos.

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

Use custom tags to slice up Cypress test runs.

A11y tests for chai

A library to download and launch Sauce Connect.

Calibre - Page speed performance testing with Google Lighthouse

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

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

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

Capture and assert HTTP ajax calls in webdriver.io 🕸

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

Shallow deep equal assertion for chai


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

Runs Mocha unit tests but randomizes their order

Kafka module for Testcontainers

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+.

Extends Chai with lint-friendly terminating assertions.

Playwright SDK for visual testing with Argos.

Allure Cucumber.JS integration

Marble testing helpers library for RxJs and Jest

UI for testing API in Cypress

Hardhat Plugin For Replicable Deployments And Tests

Applitools Eyes SDK for Puppeteer

An RxJS marble testing library for any test framework

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

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

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

Applitools Eyes SDK for TestCafe

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

Generate test data for your tests easily.

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

Chai.js assertions for enzyme

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

Jest utility for creating variations of the same test

fail cypress test on console error

Allure Vitest integration

NATS module for Testcontainers

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.

Provides a method to inject and analyze web pages using axe

the open source API testing client

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

Allure Jest integration

LambdaTest Rest Client for Node.js

file system assertions for chai

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

Custom Jasmine matchers for testing DOM elements

Run Mocha tests

puppeteer + dom-testing-library

Temporal.io SDK code coverage integration

A simple mocking library for TypeScript

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

MongoDB module for Testcontainers

tRPC API for Mock Service Worker (MSW).

Visual Regression Testing for Storybook

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

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

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 mock provider for your blockchain testing needs.

Asynchronous BDD & continuous integration for node.js

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

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

Write Beautiful Specs with Custom Matchers

Common code for jest-openapi and Chai OpenAPI Response Validator

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

io-ts codec to fast-check arbitrary mapping

jest wrapper for fetch-mock

Implementation of core APIs for the Japa tests runner

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

The react client only integration for api references

Mock smart contracts in a smart way.

Visual Debugging Experience for Vitest 🧪🖼⚡️

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

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

Sweeter, faster and simpler than truffle.

Visual diffing for UI components

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

A mock ens implementation for testing.

Assert utility from yeoman

Jest matchers for asserting that HTTP responses satisfy an OpenAPI spec

Generate fake data deterministically from a given input

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

Snapshots saved against an object

A Jest integration to run assertions in Edge Runtime context.

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

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

Vitest wrapper for fetch-mock

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

React Hooks for shallow rendering

Property based testing for Vitest based on fast-check

testing tool for textlint rule.

A library for handling GraphQL requests with Mirage JS

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

Allure Mocha integration

Virtual U2F token for automated testing of U2F/Fido APIs

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.

Write useful test matchers compatible with Jest and Jasmine.

utilities for parsing shorthand Selenium capabilities objects

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>

Adds testing helpers for driving Stripe Elements with Cypress.

Accessibility testing for Ember applications

Allure Cypress integration

Cypress custom command and hooks to remove downloads folder

Mocks Server plugin providing an administration REST API

Provides a method to inject and analyze web pages using axe

Mock Server supporting multiple route variants and mocks

A lightweight image comparison tool

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

Tizen support for Appium

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

Selenium in an npm package

A CLI for accessibility testing using axe-core

Render Svelte components in Vitest Browser Mode

Property-based testing for JavaScript.

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

Serve and run your Jasmine specs in a browser

Elasticsearch module for Testcontainers

Core components for the preceptor test runner and aggregator

Execute jasmine with ts-node

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.

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

Smarter snapshot utility for Mocha and BDD test runners

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

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

A Karma plugin for testing responsive features and layout

Run TAP unit tests in 1789+ browsers

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

A Webpack loader for injecting code into modules via their dependencies

Pluggable mock server supporting multiple route variants and mocks

DOM-less simple JavaScript BDD testing framework for Node

Easy test setup without side effects

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

GCloud module for Testcontainers

A networking layer for Cypress using MSW

Transforms BDD input into data-driven snapshot

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

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.

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

Automatically bump up global Jest thresholds whenever coverage goes above them

Save / load named snapshots, useful for tests

Chai assertions for byte arrays equality

Core framework for decorator based object oriented testing

Utilities to help testing Firebase projects with Cypress.

Convert ANSI escape sequences to human readable text