old_contents: import React from 'react';
  import { expect } from 'chai';
  import { shallow } from 'enzyme';
  
  import App from './App';
  import styles from './styles.module.css';
  
  describe('<App />', function() {
  	let wrapper;
  	beforeEach(() => {
  		wrapper = shallow(<App />)
  	})
  
  	it('has a single wrapper element', () => {
  		expect(wrapper.find(`.${styles.wrapper}`))
  			.to.have.length(1);
  	});
  });
new_contents: import React from 'react';
  import { expect } from 'chai';
  import { shallow } from 'enzyme';
  
  import App from './App';
  import styles from './styles.module.css';
  
  describe('<App />', () => {
  	let wrapper;
  	beforeEach(() => {
  		wrapper = shallow(<App />);
  	})
  	it('has a Router component', () => {
  		expect(wrapper.find('Router'))
  			.to.have.length(1);
  	})
  });
subject: Build test skeleton