Nightwatch.js

Nightwatch.js is an integrated end-to-end testing framework written in Node.js that uses the W3C WebDriver API. It provides a set of tools to write, run and debug tests for web applications and native mobile applications from one framework.

Tests run on real desktop and mobile browsers rather than browser engines only, and can be executed on a single machine or distributed across several virtual machines to speed up runs. Nightwatch combines the test runner, the browser automation layer and debugging features, so that a separate test framework is not required.

Nightwatch.js is open source under the MIT licence, developed at BrowserStack and maintained on GitHub.