text: 'use strict';
  
  require('jsdom-global')();
  
  const chai      = require('chai');
  const dom       = require('../mock/dom');
  const extension = require('../mock/extension');
  const mixitup   = require('../../dist/mixitup.js');
  
  chai.use(require('chai-shallow-deep-equal'));
  chai.use(require('chai-as-promised'));
  
  describe('Extension', () => {
      it('should register itself via the mixitup.use() method', () => {
          mixitup.use(extension);
  
          chai.assert.isOk(mixitup.extensions[extension.NAME]);
      });
  });