How do I use Testing Library in React Native?

How do I use Testing Library in React Native?

You can use Testing Library in React Native by installing the @testing-library/react-native package. Would you like to see an example?

Yes, please provide an example of a simple test.

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

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

test('it calls the onPress function when pressed', () => {
  const onPressMock = jest.fn();
  const { getByText } = render(<MyButton onPress={onPressMock} title="Click me" />);
  fireEvent.press(getByText('Click me'));
  expect(onPressMock).toHaveBeenCalled();
});

What other features does Testing Library offer?

Testing Library provides utilities for querying elements, simulating user interactions, and asserting on the output, making tests more user-centric.

Can I use it with TypeScript?

Yes, Testing Library works well with TypeScript! You just need to install the types for React and React Native.