text: 
  var mqtt = require('../..');
  var KEY = __dirname + '/../../test/helpers/tls-key.pem';
  var CERT = __dirname + '/../../test/helpers/tls-cert.pem';
  
  var PORT = 8443;
  
  var options = {
    port: PORT,
    keyPath: KEY,
    certPath: CERT,
    rejectUnauthorized : false
  };
  
  var client = mqtt.connect(options);
  
  client.subscribe('messages');
  client.publish('messages', 'Current time is: ' + new Date());
  client.on('message', function(topic, message) {
    console.log(message);
  });
  