text: const request = require('supertest');
  const app = require('./app');
  
  describe('app', () => {
    describe('"/" route', () => {
      it('should respond to a basic GET request', done => {
        request(app)
          .get('/')
          .expect(200)
          .expect('Content-Type', /text\/html/, done);
      });
    });
  });
  