JSPM

Get details about the current Continuous Integration environment

Test automation framework for Salesforce Extensions for VS Code

Detect if the current environment is a CI server

Return a function which tests if every element in an array passes a test condition.

Chance - Utility library to generate anything random

Calibre - Page speed performance testing with Google Lighthouse

Publish test results to Microsoft Teams, Google Chat, Slack and InfluxDB

ESLint rules for UI testing tools WebdriverIO, Cypress, TestCafe, Playwright, Puppeteer

A powerful Node.js CLI boilerplate with semantic-release, commitlint, husky, GitHub Actions, and modular generators for components, pages, hooks, layouts, services, styles, and tests.

Adapter that integrates @serenity-js/web with the latest stable version of WebdriverIO, enabling Serenity/JS reporting and using the Screenplay Pattern to write web and mobile test scenarios

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

Test runner for Storybook stories

Spectacular Test Runner for JavaScript.

Return a function which tests if every element in an array-like object passes a test condition.

Automated browser testing for the modern web development stack.

Adapter that integrates @serenity-js/web with WebdriverIO 8, enabling Serenity/JS reporting and using the Screenplay Pattern to write web and mobile test scenarios

Leadfoot. A JavaScript client library that brings cross-platform consistency to the Selenium WebDriver API.

Cypress is a next generation front end testing tool built for the modern web

This is lightweight memory stream module for node.js.

Mock HTTP server for testing HTTP clients and stubbing webservices

Browser testing/automation utilities with async/await

VTEX IO testing tools

Dynamic accessibility analysis for React using axe-core

Tesults API library.

Regular expression for matching ANSI escape codes

A WebdriverIO service that allows you to run Chrome DevTools commands in your tests

Mocha thin wrapper that allows running TypeScript tests with TypeScript runtime (ts-node) to get rid of compilation complexity

Manage docker-compose from Node.js

Get the first fulfilled promise that satisfies the provided testing function

Mendix Pluggable Widgets Tools

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Get the native type of a value.

Regular expression for matching a shebang line

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Match balanced character pairs, like "{" and "}"

Returns true if a string has an extglob.

Check if a value is a plain object

CLI for running automation tests within the OpenFin ecosystem

Tools to support code coverage in Storybook

Give a regex, get a robust predicate function that tests it against a string.

Test tools

Delightful JavaScript Testing.

Framework for an implementation of the Screenplay pattern.

Returns true if a value is a plain object, array or function.

Delightful JavaScript Testing.

Check if a value is an object

Parameterised tests for Jest

Delightful JavaScript Testing.

Is this a bluebird promise I see before me?

Type check values

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

Error constructor for test and validation frameworks that implements standardized AssertionError specification.

invariant

unist utility to check if a node passes a test

A response-like object for mocking a Node.js HTTP response stream

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

Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.

Next generation testing framework powered by Vite

Check if a string has ANSI escape codes

simple, flexible, fun test framework

Storybook addons for visual testing with Percy

Create a javascript regular expression for matching everything except for the given string.

Helper methods for automation testing in the OpenFin ecosystem

Generate a regex from a string or array of strings.

[](https://github.com/mmkal/expect-type/actions/workflows/ci.yml)  [![X (formerly Twitter) Follow](https://img.shields.io/twitte

Lightweight REST client to interact with a running WireMock server

Regular expression for matching IP addresses (IPv4 & IPv6)

Match balanced character pairs, like "{" and "}"

Almost config-free Istanbul code coverage reporter for Mocha usage in Grunt

Node is running but you don't know why? why-is-node-running is here to help you.

implementation of seleniumjs to use with test automation

JavaScript test spies, stubs and mocks.

SuperAgent driven library for testing HTTP servers

A bunch of tools to configure and create a local github environment to test your github actions in without having to clutter your github with test repositories, actions or hitting github api rate limits.

Visual Regression Testing for Storybook

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Regular expression for getting the root of a posix or windows filepath.

V8 coverage provider for Vitest

REST API Testing Tool for all levels in a Test Pyramid

Simple JavaScript testing framework for browsers and node.js

Fake XHR and server

Create random strings that match a given regular expression.

Automate visual testing across browsers. Gather UI feedback. Versioned documentation.

Automate, test and debug user interactions

An eslint plugin for inline codegen. Auto-fixes out of sync code, with presets for barrels, jsdoc to markdown and more.

uvu is an extremely fast and lightweight test runner for Node.js and the browser

Typescript-compatible minimalistic shallow equality check for arrays/objects

Storybook Addon A11y: Test UI component compliance with WCAG web accessibility standards

test framework agnostic BDD-style assertions

Return true if a value is a valid glob pattern or patterns.

output coverage reports using Node.js' built in coverage

Catch unexpected visual changes & UI bugs in your stories

the definitive JavaScript type testing library

Detect if a Buffer/Uint8Array is compressed using deflate

Returns an object with a `negated` boolean and the `!` stripped from negation patterns. Also respects extglobs.

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

Mock a canvas in your jest tests.

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

Over the wire test doubles

invariantx

Returns true if a windows file path has invalid characters.

A JavaScript mock Date object that can be used to change when "now" is.

Return true if a file path contains the given path.

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.

Axios adapter that allows to easily mock requests

Adaptation of react-addons-shallow-compare, for independent usage

path-serializer

JavaScript Testing utilities for React

Hook and modify stdout and stderr

Check if a binary is working

Parse a github URL into an object.

CSS vendor prefix detection and property feature testing.

Additional Jest matchers

Opinionated HTML formatter focused towards making HTML diffs readable.

Allure JS Commons

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

Check if a string is an IP address

Check if a binary is working

A Cypress command for file upload

Mock 'http' objects for testing Express, Next.js and Koa routing functions

Returns true if a file path does not contain any invalid characters.

Regular expression for matching HTML comments

Jest snapshot serializer that beautifies HTML.

Check if the process is running in a Continuous Integration (CI) environment

Starts server, waits for URL, then runs test command; when the tests end, shuts down server

Get details about the current Continuous Integration environment

Syngrisi Core JS client

TestRail API wrapper using promises

Regular expression for matching javascript require/import statements.

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

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

Istanbul coverage provider for Vitest

Returns true if the value passed is all whitespace.

Injects a fake HTTP request/response into a node HTTP server

parse the test anything protocol

Applitools TestGenAI enables both technical and non-technical team members to expand test coverage effectively. This inclusivity allows non-technical participants to engage in test automation, helping to distribute the workload more efficiently across the

The JavaScript Task Runner

An opinionated library to make testing Babel plugins easier

Proxies nodejs require in order to allow overriding dependencies during testing.

JavaScript Testing utilities for React

Rich matchers inspired by Hamcrest. Useful for generating helpful assertion failure messages in tests.

Returns `true` if an array has a glob pattern.

A TAP Output Producer Plugin for QUnit

A tiny javascript type testing tool

Test whether value is error object

convert enzyme wrapper to a format compatible with Jest snapshot

A configurable mock file system. You know, for testing.

JavaScript Testing utilities for React

The module that allows you to create HTML Report from raw accessibility aXe result object

unist utility to create a new tree with nodes that pass a filter

Jest matcher for image comparisons. Most commonly used for visual regression testing.

A Test-Anything-Protocol library for JavaScript

WebDriverJS adapter for Jasmine2.

Enable DOM in Node.js

Mock implementation of the Next.js Router

web-component-tester makes testing your web components a breeze!

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

tap-producing test harness for node and browsers

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

Merges multiple JUnit XML reports into one.

Allure Playwright integration

HeartBeat

/dev/null for node streams

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

JavaScript Testing utilities for React

Storybook addon for editing props

nyc configuration that works with typescript

githooks management forked from husky

time utils

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

Loads environment variables from `.env.[development|test|production][.local]` files

Test if a value is a string.

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

Test if a value is a function.

Adds iframe support to Cypress

Tests framework based on mocha and wdio

Test if a value is a Float64Array.

Test if a value is a Uint32Array.

Test if a value is object-like.

Find the first element in an array that passes a callback test. Equivalent to underscore.find()

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

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

Test if a value is a plain object.

Regular expression to detect an extended-length path.

🌗 A module used to mock canvas in Vitest.

Automatically install pre-commit hooks for your npm modules.

Storybook Vitest addon: Blazing fast component testing using stories

Easy dependency injection for node.js unit testing

Test if an object has a specified property.

JavaScript Testing utilities for React

Test if a value is an object.

Storybook Pseudo-states addon: Manipulate CSS pseudo states

Test if a value is a Float32Array.

Test if a value is a number.

Yaml handling for TAP parsers and generators

Test if a value is a regular expression string.

Easily generate customized GraphQL mock responses in JavaScript tests.

Automatically opens your browser and iOS Simulator to preview Node.js email messages sent with Nodemailer. Made for Forward Email and Lad. Cross-browser and cross-platform email testing.

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

Test framework for automating rest api & JS & typescript!

Unit testing tools for Most.js

Auto mock all localstorage and sessionstorage APIs for your Jest tests

A WebdriverIO service to track and prepare for re-running failing or flaky Jasmine/Mocha tests or Cucumber Scenarios.

A test runner with all the features you want, none of the complexity you don't, and no dependencies.

Workers Vitest integration for writing Vitest unit and integration tests that run inside the Workers runtime

🙈🐵 Run Playwright in watch mode

Test if a value is a Uint8Array.

Test if a value is a Uint16Array.

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

Add custom message to Jest expects

Generate new Express applications similar to express-generate which but sets it up to use TypeScript instead

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

NPM library for low-code mobile automation testing using WebDriverIO and AgentQ AI

maximally minimal type-testing library

Functions to mock the JavaScript aws-sdk

Power Assert feature enhancer for assert function/object

Simple, intuitive mocking of Node.js modules.

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

Simple and fast DOM integration, headless or headful browser, and REST API testing framework.

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

A cypress child command for drag'n'drop support.

ESLint rules for AVA

factory for building JavaScript objects, mostly useful for setting up test data. Inspired by factory_girl

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

Fast HTTP benchmarking tool written in Node.js

The Karma command line interface.

Power Assert output formatter

Tesults reporter for Jest

Almost config-free nyc code coverage reporter for Mocha usage in Grunt

A lightweight Jest mock for unit testing Express

A testing companion to firebase-functions.

Minimizes project setup and maintenance complexity, so you can focus on writing code.

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

Test Redux Saga with an easy plan

WebdriverIO service that lets you define your Firefox profile in your wdio.conf.js

Integrate Vitest with Storybook

Power Assert feature enhancer for assert function/object

New application schema

Pipe your JavaScript into a browser, logging console output in Node

Jest plugin to use esbuild for transformation

Generate fake data to be used in test automation

Power Assert in JavaScript

Utilities for testing Ink apps

Show some ❤️ to process errors

Determine if an array or object is equivalent with another, *not* recursively

Command-line runner for VS Code extension tests

Runs a set of accessibility audits

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XMLHttpRequest mock for testing

Check if a process is running