Automated unit testing for code igniter 2.x/3.x

< ?php
class Frontend_Tests_Controller extends Frontend_Controller{
    function __construct(){
        parent::__construct();
    }
 
    public function index(){
        $this->load->library('unit_test');
 
        $this->unit->run( $this->test_reflection(5), 5, "Testing testing" );
 
        echo $this->unit->report();
    }
 
    protected function test_reflection($value){
        return $value;
    }
}

function __autoload($class){
    if (file_exists(APPPATH."controllers/".strtolower($class).".php")){
        require_once(APPPATH.'controllers/'.strtolower($class).".php");
    }
}

$route['tests'] = "Frontend_Tests_Controller/index";