content: import React from 'react';
  import { expect } from 'chai';
  import { shallow } from 'enzyme';
  import PageHeader from '../../src/components/PageHeader';
  import NavBar from '../../src/components/NavBar';
  
  describe('<PageHeader />', () => {
    it(`renders the page headers' nav bar`, () => {
      const rendered = shallow(<PageHeader />);
      const navBar = rendered.find(NavBar);
      expect(navBar).to.have.length.of(1);
    });
  });
  