The Complete React Developer Course (with Hooks and Redux) - Testing Filters Reducer

The video tutorial covers the process of testing Redux reducers in JavaScript. It begins with an introduction to reducers and the setup of test files. The tutorial then demonstrates how to test default values in the Redux store, followed by testing the 'sort by' functionality for both amount and date. Finally, it covers testing for text, start date, and end date filters, ensuring that the Redux store behaves as expected. The tutorial emphasizes the importance of testing to allow for refactoring without breaking functionality.

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