Open Source JavaScript Unit Testing Tools

qooxdoo is a universal JavaScript framework that enables you to create applications for a wide range of platforms. With its object-oriented programming model, you build rich, interactive applications (RIAs), native-like apps for mobile devices, light-weight traditional web applications or even applications to run outside the browser. You leverage its integrated tool chain to develop and deploy applications of any scale while taking advantage of modern web technologies like HTML5 and CSS3, its comprehensive feature set, and a state-of-the-art GUI toolkit. qooxdoo is open source under liberal licenses, led by a dedicated developer team, with a vibrant community. Qooxdoo offers a wide range of widgets and UI components, plus powerful server I/O communication. Built-in unit testing framework with unit tests across the API and User Interface testing.

Standalone test spies, stubs and mocks for JavaScript. Works with any unit testing framework. As before, Sinon.JS provides utilities that help test frameworks reduce the boiler-plate. As of Sinon 10 we stopped maintaining compatibility with legacy browsers. Instead, we focus on compatibility with evergreen browsers, Node.js LTS versions and recent Safari versions. The most up-to-date reference on which runtimes and browsers we support can be found by looking at our compatibility docs. Fake timers are synchronous implementations of setTimeout and friends that Sinon.JS can overwrite the global functions with to allow you to more easily test code using them. A test spy is a function that records arguments, return value, the value of this and exception thrown (if any) for all its calls. There are two types of spies: Some are anonymous functions, while others wrap methods that already exist in the system under test. Mocks should only be used for the method under test.

BugEye is an XML-based unit test creation framework. Being XML-based, it can be easily translated to almost any language. The current translations are C#, Java, JavaScript, and Visual Basic. Future translations include C++, Python, Perl, and PHP.

Crosscheck is a JavaScript unit-testing framework capable of emulating multiple browser environments. For more information see: https://dev.thefrontside.net/crosscheck

jsAssertUnit is a unit testing framework based on assertions, helping JavaScript developers to test their code. Failing assertions about the program state are tracked in a Reporter window of a DOM compliant browser : IE5+, Mozilla, Netscape 6+, etc.

JsUnit is a unit testing framework for client-side JavaScript in the tradition of the XUnit frameworks. Development began in 2001. As of 11/28/2009, development has moved to GitHub: http://github.com/pivotal/jsunit

PureJS-Tools is a lightweight library to simplify some aspect code of pure javascript like the written of unit test or the manage of the onload event. Thanks to this library, you can make easily unit test to your JS code. This is a free library under the GNU General Public License version 3.0 (GPLv3). This means that you can use the PureJS-Tools in your own project, redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation. This library was made during an internship on the auto-cuedspeech project (https://auto-cuedspeech.org/), which is an I.T project for hearing impairment persons and founded by the FIRAH (https://www.firah.org/). PureJS-Tools is written and maintened by Florian Lopitaux (https://github.com/florianLopitaux)

jECMAUnit is an ECMA (Javascript) unit testing framework that uses the underlying javascript engine and JUnit to perform the tests in java, allowing browser-less unit testing of javascript code

JsFUnit is a Functional and Unit Testing framework for client-side (in-browser) JavaScript. It be based on jsUnit

Testpilot is a browser based unit testing framework for testing websites. With it you can record the keystrokes and mouse events for a session and play them back automatically. You can include assertions for values in inputs DIVs or JavaScript variables.