setupTests.js

// see https://airbnb.io/enzyme/docs/guides/react-native.html#example-configuration-for-jest

import 'react-native';
import 'jest-enzyme';
import Adapter from 'enzyme-adapter-react-16';
import Enzyme from 'enzyme';
import 'react-native-gesture-handler/jestSetup';

jest.mock('react-native-reanimated', () => {
  const Reanimated = require('react-native-reanimated/mock');

  // The mock for `call` immediately calls the callback which is incorrect
  // So we override it with a no-op
  Reanimated.default.call = () => {};

  return Reanimated;
});

// Silence the warning: Animated: `useNativeDriver` is not supported because the native animated module is missing
jest.mock('react-native/Libraries/Animated/src/NativeAnimatedHelper');

jest.mock('@react-native-community/async-storage', () => ({
  setItem: jest.fn(),
  getItem: jest.fn(),
  removeItem: jest.fn(),
}));

/**
 * Set up Enzyme to mount to DOM, simulate events,
 * and inspect the DOM in tests.
 */
Enzyme.configure({ adapter: new Adapter() });