React E2E testing in Headless Chrome with unexpected.js and retractor

index.js

import webdriver from 'friendly-webdriver';
import unexpected from 'unexpected';
import unexpectedWebdriver from 'unexpected-webdriver';
import retractor from 'retractor';

const expect = unexpected.clone();
expect.use(unexpectedWebdriver());

/* @jsx retractor */

import TodoItem from './TodoItem';

var wd = webdriver({
  base: 'http://localhost:5000',
  browser: 'chrome',
  capabilities: {
    chromeOptions: {
      args: ['headless', 'disable-gpu', 'window-size=1200x600']
    }
  }
});

test('mousetrap is to be built', async () => {
  wd.goto('/todos');
  const item = wd.find(<TodoItem title="Build a better mousetrap" completed={false} />);
  return expect(item, 'to exist');
});