Chapter 10

1. The describe function blocks are used to group test cases that are related to each other.
2. Jest will execute the beforeAll function once before any of the tests in the surrounding describe block are executed.
3. Yes, you can run asynchronous tests in Jest.
4. You can use the userEvent function to emulate a user typing into a text field.
5. With the Create React App test script and Jest, calculating the code coverage is as easy as specifying the --coverage argument when executing the npm test command.