Development / Testing
Testing In React Tutorial – Jest and React Testing Library (video)
An overview of how to render components and interact with them to verify state and behavior.
Jest Testing: A Helpful, Introductory Tutorial
A separate tutorial that covers only Jest, rather than the combo of Jest + React Testing Framework.
React Testing Library Tutorial
A more thorough tutorial explaining get/query/findBy, assertive functions, firing events, callbacks, and async functions.