content: import React from 'react';
  import { expect } from 'chai';
  import { shallow } from 'enzyme';
  
  import Board from './index';
  import Message from '../message';
  
  describe('<Board> component', () => {
  
      const container = shallow(<Board />);
      
      it('should render component', () => {
          expect(container.find(Board)).to.exist;
      });
  
      it('should render <Message>', () => {
          expect(container.find(Board).find(Message)).to.exist;
      });
  
      it(`should render exactly one <div> with 'wrapper' class`, () => {
          const wrapper = container.find('.wrapper');
          expect(wrapper).to.exist;
          expect(wrapper).to.have.length(1);
      });
  
      it(`should render exactly 64 <div> with 'box' class`, () => {
          const box = container.find('.box');
          expect(box).to.exist;
          expect(box).to.have.length(64);
      });
  
  });
  