text: import React from 'react';
  import { shallow } from 'enzyme';
  import { TextField } from '@material-ui/core';
  
  import PageHeader from './PageHeader';
  
  describe('PageHeader', () => {
    let component;
    beforeEach(() => {
      component = shallow(<PageHeader />);
    });
  
    it('Does header have an image', () => {
      expect(component.exists('img')).toBe(true);
    });
  
    it('Does header contain a search bar', () => {
      expect(component.exists(TextField)).toBe(true);
    });
  });
  