Ready for continuous integration? Intern fully integrates with Travis CI , Jenkins , and TeamCity out of the box.

Seamlessly run tests on Sauce Labs , BrowserStack , TestingBot , or your own Selenium Grid .

Get full code coverage reporting so you know what’s left to test.

Write tests in JavaScript and TypeScript using any style you like (TDD, BDD, whatever!).

Intern AVA BusterJS Jasmine Jest Mocha Nightwatch QUnit Wdio Includes unit testing Includes functional testing Comes with TypeScript typings Includes code coverage analysis Runs tests in parallel for improved performance Uses true1 browser events Supports AMD natively Runs stand-alone2 in browsers Tests Node.js code Supports multi-level source maps Can be used with any3 assertion library Includes multiple test interfaces Lets you write your own custom test interfaces Lets you write your own custom reporters Uses Promises for asynchronous testing Uses standard WebDriver APIs Automatically handles Selenium server bugs Tests native mobile apps Built-in support for multiple CI services Built-in support for multiple cloud testing services Comes with Grunt tasks Gets your coffee and makes photocopies

Supported out-of-the-box Supported via plugin/extension Supported via third party library

1: True events are not generated by JavaScript within the sandbox, so are able to accurately emulate how a user actually interacts with the application. Synthetic events generated by other test frameworks are limited by browser security restrictions.

2: Stand-alone means that unit tests can be executed in a browser by navigating to a URL without needing any special HTTP server or proxy for support.

3: If it throws an error on failure, it works with Intern.