Intern

What Intern is

Intern is an open-source test system for JavaScript libraries and applications. Developers can write tests in JavaScript or TypeScript using approaches such as TDD or BDD, then run them in browsers, Node.js, or across multiple browsers and platforms with its test runner. It reports code coverage and can target web pages as well as native or hybrid iOS and Android applications. For browser automation, it supports WebDriver-compatible applications and services such as Selenium, Appium, and Selendroid. Listed cloud choices include Sauce Labs, BrowserStack, TestingBot, and a user's own Selenium Grid. The project also lists out-of-the-box connections to Travis CI, Jenkins, and TeamCity. Its architecture can be extended with custom test interfaces, executors, and reporters. Intern is free under the New BSD license; the project links to GitHub downloads and gives `npm install intern` as the install command. Community support is available through Stack Overflow, Gitter, and IRC. The project README states that Internet Explorer 9 is not supported.