redux-devtools/packages/redux-devtools-ui/tests/ContextMenu.test.tsx

import React from 'react';
import { render, mount } from 'enzyme';
import { renderToJson } from 'enzyme-to-json';
import { ContextMenu } from '../src';
import { items } from '../src/ContextMenu/data';

describe('ContextMenu', function () {
  it('renders correctly', () => {
    const wrapper = render(
      <ContextMenu
        items={items}
        onClick={() => {
          // noop
        }}
        x={100}
        y={100}
      />
    );
    expect(renderToJson(wrapper)).toMatchSnapshot();
  });
  it('should handle the click event', () => {
    const onClick = jest.fn();
    const wrapper = mount(
      <ContextMenu items={items} onClick={onClick} x={100} y={100} />
    );

    wrapper.find('button').first().simulate('click');
    expect(onClick).toBeCalled();
  });
});