What are the best practices for testing in the React ecosystem?

What are the best practices for testing in the React ecosystem?

Some best practices include using Jest for unit tests, React Testing Library for component tests, and ensuring good coverage.

How do I set up Jest for a React project?

You can set up Jest by installing it via npm with npm install --save-dev jest and configuring it in your package.json.

What is the difference between shallow and deep rendering?

Shallow rendering renders a component without its children, while deep rendering includes all child components.

Can you explain how to mock API calls in tests?

You can use libraries like jest.mock to mock API calls, allowing you to simulate responses without hitting the actual API.