Mocha is a feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. 

Mocha - JavaScript Test Framework

Karma is essentially a tool which spawns a web server that executes source code against test code for each of the browsers connected. The results for each test against each browser are examined and displayed via the command line to the developer such that they can see which browsers and tests passed or failed. It is a simple tool that allows you to execute JavaScript code in multiple real browsers. 

Karma - Spectacular Test Runner for JavaScript

AVA is a test runner for Node.js with a concise API, detailed error output, embrace of new language features and process isolation that lets you develop with confidence. AVA automatically detects whether your CI environment supports parallel builds. Each build will run a subset of all test files, while still making sure all tests get executed. It automatically removes unrelated lines in stack traces, allowing you to find the source of an error much faster.
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Its features include:
<ul>
<li>Minimal and fast</li>
<li>Simple test syntax</li>
<li>Runs tests concurrently</li>
<li>Enforces writing atomic tests</li>
<li>No implicit globals</li>
<li>Includes TypeScript definitions</li>
<li>Magic assert</li>
<li>Isolated environment for each test file</li>
<li>Promise support</li>
<li>Async function support</li>
<li>Observable support</li>
<li>Enhanced assertion messages</li>
<li>Automatic parallel test runs in CI</li>
<li>TAP reporter</li>
</ul>

AVA is a test runner for Node.js with a concise API, detailed error output, embrace of new language features and process isolation that lets you develop with confidence. AVA automatically detects whether your CI environment supports parallel builds. Each build will run a subset of all test files, while still making sure all tests get executed. It automatically removes unrelated lines in stack traces, allowing you to find the source of an error much faster.

Ava - Futuristic JavaScript test runner

QUnit is a powerful, easy-to-use, JavaScript unit testing framework. It's used by the jQuery project to test its code and plugins but is capable of testing any generic JavaScript code (and even capable of testing JavaScript code on the server-side).

qunit - An easy-to-use JavaScript Unit Testing Framework

Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, Node.js projects, or anywhere that JavaScript can run.

Jasmine - A JavaScript Testing Framework

CodeceptJS is a new testing framework for end-to-end testing with WebDriver (or others). It abstracts browser interaction to simple steps that are written from a user perspective. It is synchronous where you don't need to care about callbacks, or promises, test scenarios are linear. 
Run your tests via Playwright, WebDriver, Puppeteer, TestCafe, Protractor, Appium. The code is the same.
<ul>
<li>Based on <a href="https://mochajs.org/" rel="nofollow">Mocha</a> testing framework.</li>
<li>Designed for scenario driven acceptance testing in BDD-style</li>
<li>Uses ES6 natively without transpiler.</li>
<li>Also plays nice with TypeScript.</li>
<li>Smart locators: use names, labels, matching text, CSS or XPath to locate elements.</li>
<li>Interactive debugging shell: pause test at any point and try different commands in a browser.</li>
<li>Easily create tests, pageobjects, stepobjects with CLI generators.</li>
</ul>

CodeceptJS is a new testing framework for end-to-end testing with WebDriver (or others). It abstracts browser interaction to simple steps that are written from a user perspective. It is synchronous where you don't need to care about callbacks, or promises, test scenarios are linear. 
Run your tests via Playwright, WebDriver, Puppeteer, TestCafe, Protractor, Appium. The code is the same.

CodeceptJS - Supercharged End 2 End Testing Framework for NodeJS

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Mocha - JavaScript Test Framework

Karma - Spectacular Test Runner for JavaScript

Ava - Futuristic JavaScript test runner

qunit - An easy-to-use JavaScript Unit Testing Framework

Jasmine - A JavaScript Testing Framework

CodeceptJS - Supercharged End 2 End Testing Framework for NodeJS

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Projects

Mocha - JavaScript Test Framework

Karma - Spectacular Test Runner for JavaScript

Ava - Futuristic JavaScript test runner

qunit - An easy-to-use JavaScript Unit Testing Framework

Jasmine - A JavaScript Testing Framework

CodeceptJS - Supercharged End 2 End Testing Framework for NodeJS

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