如何用jest和酶模拟React组件事件

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 simulate a click event', () => {
    const wrapper = shallow(<MyComponent />);
    // ...
  });
});

describe('MyComponent', () => {
  it('should simulate a click event', () => {
    const wrapper = shallow(<MyComponent />);
    const button = wrapper.find('button');
    button.simulate('click');
    // ...
  });
});

describe('MyComponent', () => {
  it('should simulate a click event', () => {
    const wrapper = shallow(<MyComponent />);
    const button = wrapper.find('button');
    button.simulate('click');
    expect(wrapper.state('clicked')).toBe(true);
    // ...
  });
});