如何在包含useIsFocussed()导航钩子的jest/酶中测试react原生文件？

npm install --save-dev jest enzyme enzyme-adapter-react-16

import React from 'react';
import { shallow } from 'enzyme';
import MyComponent from './MyComponent';

describe('MyComponent', () => {
  it('should render correctly', () => {
    const wrapper = shallow(<MyComponent />);
    expect(wrapper).toMatchSnapshot();
  });

  it('should call useIsFocused() hook', () => {
    const useIsFocusedMock = jest.fn();
    jest.doMock('react-navigation', () => ({
      useIsFocused: useIsFocusedMock,
    }));

    shallow(<MyComponent />);
    expect(useIsFocusedMock).toHaveBeenCalled();
  });
});

npm test