How do I set up testing in a Create React App project?

How do I set up testing in a Create React App project?

You can set up testing in a Create React App project using Jest and React Testing Library, which are included by default.

What types of tests can I write for my React components?

You can write unit tests, integration tests, and end-to-end tests for your React components.

Can you show me an example of a simple test?

Sure! Here's a simple test for a button component:

import { render, screen } from '@testing-library/react';
import MyButton from './MyButton';

test('renders button with text', () => {
  render(<MyButton />);
  const buttonElement = screen.getByText(/click me/i);
  expect(buttonElement).toBeInTheDocument();
});

How do I run my tests?

You can run your tests by using the command npm test in your project directory.