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Mocking Asynchronous Functions with Jest

Mocking is a fundamental skill in testing. It allows you to avoid testing parts of your code that are outside your control, or to get reliable return values from said code. 00:00 - What we'll cover 01:00 - Reviewing the project setup 03:02 - Creating the test 06:24 - Adding async await to pass test 07:17 - Why mock an api request for unit tests 08:32 - Adding jest mock for axios 14:06 - Check if mock function has been called 15:31 - Shorthand for mocking resolved promise value 16:23 - Gotcha for mock state, and how to clear it each test 18:24 - Alternate way of mocking within a test file 20:50 - Wrap-up Repository for code example: https://github.com/Jimmydalecleveland... Blog Post: https://blog.jimmydc.com/mock-asynchr... Swapi Dev: https://swapi.dev/ Follow Jimmy Cleveland's doings: twitter:   / jimmydcleveland   blog: https://blog.jimmydc.com/ #jest #mock #async