/**
  * register autoloader
  *
  * @param string $dirname base directory path.
  * @return void
  */
 public static function register($dirname = null)
 {
     if (is_null($dirname)) {
         $dirname = dirname(__FILE__);
     }
     self::$base_dir = $dirname;
     spl_autoload_register(array(__CLASS__, "autoload"));
 }
<?php

require dirname(dirname(__FILE__)) . "/Jira/Autoloader.php";
Jira_Autoloader::register();
require_once "Jira/Api/MockClient.php";