Testing with Jest in React

Jest tutorials

• https://jestjs.io/docs/tutorial-react
• https://create-react-app.dev/docs/running-tests/
• https://www.smashingmagazine.com/2020/07/react-apps-testing-library/
• http://constructorlabs-syllabus.herokuapp.com/testing-react/

Launch the test runner

npm test or yarn test

This launches the test runner in the interactive watch mode. F or more information, see the section about running tests