text: let assert = require('chai').assert;
  let BookStore = require('./BookStore');
  
  describe('General describe block', function () {
      let instance;
      beforeEach(function () {
          instance = new BookStore('store');
      });
      describe('Test constructor()', function () {
          it('test whole object', function () {
  
          });
      });
  
  
  });