How do you test React components? What are the commonly used testing libraries?

Testing ensures your components render and behave correctly.

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⚙️ Example

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

test('renders button text', () => {
  render(<Button text='Click' />);
  expect(screen.getByText('Click')).toBeInTheDocument();
});

✅ Common Libraries:

• Jest — testing framework.
• React Testing Library — for DOM testing.
• Enzyme (legacy).