Check out a free preview of the full Testing JavaScript Applications (feat. React and Redux) course:
The "Feature Setting" Lesson is part of the full, Testing JavaScript Applications (feat. React and Redux) course featured in this preview video. Here's what you'd learn in this lesson:

Kent demonstrates various features with Jest: watch mode, which allows for running tests concurrently with development; filtering, to quickly find unit tests by name; test function, which allows the ability to skip tests until they are ready; and Babel integration, which allows for the use of a JavaScript compiler. While writing a unit test, Kent reviews best testing practices.

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