ant-design/tests/shared/demoTest.js

import glob from 'glob'
import { render } from 'enzyme';
import { renderToJson } from 'enzyme-to-json';
import MockDate from 'mockdate';

export default function demoTest(component, options = {}) {
  const files = glob.sync(`./components/${component}/demo/*.md`);

  files.forEach(file => {
    let testMethod = options.skip === true ? test.skip : test;
     if (Array.isArray(options.skip) && options.skip.some(c => file.includes(c))) {
       testMethod = test.skip;
     }
    testMethod(`renders ${file} correctly`, () => {
      MockDate.set(new Date('2016-11-22').getTime() + new Date().getTimezoneOffset() * 60 * 1000);
      const demo = require('../.' + file);
      const wrapper = render(demo);
      expect(renderToJson(wrapper)).toMatchSnapshot();
      MockDate.reset();
    });
  });
}