text: const expect = require('chai').expect;
  
  exports.test = function (done) {
    // should not register the res.marko function multiple times
    const express = require('express');
    require('marko/express');
  
    const fn = express.response.marko;
  
    require('marko/express');
  
    expect(express.response.marko).to.equal(fn);
    done();
  };