# Intern Software testing for humans [![CI status](https://travis-ci.org/theintern/intern.svg?branch=4.x)](https://travis-ci.org/theintern/intern) [![codecov](https://codecov.io/gh/theintern/intern/branch/master/graph/badge.svg)](https://codecov.io/gh/theintern/intern) [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/theintern/intern.svg)](http://isitmaintained.com/project/theintern/intern 'Average time to resolve an issue') [![Percentage of issues still open](http://isitmaintained.com/badge/open/theintern/intern.svg)](http://isitmaintained.com/project/theintern/intern 'Percentage of issues still open') [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Ftheintern%2Fintern.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Ftheintern%2Fintern?ref=badge_shield)

Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries and applications. It can be used to test _any_ JavaScript code. - Plain JavaScript code, in any module format (or no module format!) - Web pages generated by server-side languages (like Java, PHP, or Ruby) - Native or hybrid iOS, Android, and Firefox OS applications - TypeScript code when running in Node, with no additional config Intern is minimally prescriptive and enforces only a basic set of best practices designed to ensure your tests stay maintainable over time. Its extensible architecture allows you to write custom test interfaces, executors, and reporters to influence how your tests run & easily integrate with your existing coding environment. Intern also comes with Grunt tasks so it can be quickly added to existing Grunt-based workflows, and is designed to work out-of-the-box with popular continuous integration services like Jenkins and Travis CI. If you’re into name-dropping, Intern gets used every day by teams at Twitter, Stripe, Mozilla, IBM, Marriott, Philips, Zenput, Alfresco, Esri, HSBC, ING, Intuit, and more. It’s also the testing framework of choice for [growing numbers of open-source projects](https://github.com/search?p=2&q=tests+filename%3Aintern.js&ref=searchresults&type=Code&utf8=%E2%9C%93). > 💡 If you’re an Intern user who’s new to Intern 4, see the [Changes from Intern 3](docs/changes_from_3.md) document for a summary of the major differences. For Intern 3 documentation, please see [the Intern 3 README](https://github.com/theintern/intern/tree/3.4#intern). > 💡 Recently updated your browser and your WebDriver tests stopped working? You may need to [pin your WebDriver versions](./docs/running.md#selenium). ## Quick start 1. Install from npm ```sh $ cd /my/project $ npm install intern ``` 2. Create an `intern.json` file in your project root. ```js { "suites": "tests/unit/**/*.js" } ``` 3. Verify that your configuration works by running Intern and checking that no errors are output. ```sh $ ./node_modules/.bin/intern ``` 4. Start [writing tests](docs/writing_tests.md)! ## TypeScript setup Intern installs a global variable that tests may not be aware of if nothing imports the base `intern` package. To ensure Intern’s types are loaded, add the following to your `tsconfig.json`: ```json { "compilerOptions": { "types": ["intern"] } } ``` Alternatively, add a triple-slash directive to the top of your suite files: ```ts /// ``` ## Compatibility Intern can run unit tests in most browsers that support ECMAScript 5, including mobile browsers on Android and iOS, and in Node 6+. Note that Internet Explorer 9 is not supported. Intern’s self-tests run against IE 10 and 11, Firefox 36 and current, Chrome 38 and current, and Safari 9 and 10, as well as the latest LTS and current versions of Node. Intern can run functional tests using WebDriver-compatible applications and services, including Selenium, Appium, Selendroid. It has built-in support for cloud testing services from [BrowserStack](https://browserstack.com), [CrossBrowserTesting](https://crossbrowsertesting.com), [SauceLabs](https://saucelabs.com), and [TestingBot](https://testingbot.com). ## More information - [Getting started](docs/getting_started.md) - Setting up Intern to test a project - [Changes from Intern 3](docs/changes_from_3.md) - Major changes from Intern 3 to Intern 4 - [How To](docs/how_to.md) - Quick answers to common questions - [Concepts](docs/concepts.md) - General testing concepts and definitions - [Architecture](docs/architecture.md) - How Intern is organized - [Configuration](docs/configuration.md) - How to configure Intern - [Writing tests](docs/writing_tests.md) - The various ways of writing tests with Intern - [Running](docs/running.md) - How to run Intern - [Extending](docs/extending.md) - Extending Intern with reporters and other plugins - [API](docs/api.md) - Summary API documentation - [Continuous integration](docs/ci.md) - Using Intern with CI systems - [Developing](docs/developing.md) - For Intern developers - [Contributing](CONTRIBUTING.md) - How to contribute to Intern development ## Get help The best place to ask questions and get answers about Intern is Stack Overflow. Just tag your question with `intern`. If you have more immediate questions, or just want to chat with other people interested in Intern, join the Gitter room at [theintern/intern](https://gitter.im/theintern/intern). See the [Help](docs/help.md) page for more information. ## License Intern is a JS Foundation project offered under the [New BSD](LICENSE) license. [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Ftheintern%2Fintern.svg?type=large)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Ftheintern%2Fintern?ref=badge_large) © [SitePen, Inc.](http://sitepen.com) and its [contributors](https://github.com/theintern/intern/graphs/contributors)

Intern’s self-tests run on

	Stars	Issues	Version	Updated	Created
codeceptjs	4,102	176	3.6.5	a month ago	9 years ago
cypress	46,676	1,433	13.14.2	8 days ago	11 years ago
intern	4,361	138	4.10.1	3 years ago	11 years ago
nightmare	19,541	210	3.0.2	5 years ago	10 years ago
nightwatch			3.7.0	2 months ago	11 years ago

codeceptjs vs cypress vs intern vs nightmare vs nightwatch

Downloads in past1 Month3 Months6 Months1 Year2 Years5 YearsAll time

Stats

Sick of boring JavaScript newsletters?

Downloads in past