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Tests plain JavaScript, web pages from server-side languages, and native/hybrid mobile apps, as highlighted in the key features, making it versatile for diverse codebases.

Allows custom test interfaces, executors, and reporters to fit any workflow, enabling easy integration with existing tools and environments.

Works out-of-the-box with Jenkins and Travis CI, and includes Grunt tasks, facilitating seamless automation in continuous integration pipelines.

Runs unit tests in ECMAScript 5+ browsers and Node 6+, with functional testing via WebDriver services like Selenium and Appium, ensuring wide compatibility.