테스트로 만들어 보고 있는데 먹질 안네요

소스는 아래와 같습니다.

== controller ===========================

<?php namespace App\Controllers;

use App\Models\SiteModel;
use App\Libaries\AcessLib;
class Site extends BaseController {
    public function __construct(){
        $access = new AcessLib();
    }

    public function index()
    {

        $siteModel = new SiteModel();


        echo"AAAAAAAAAAAAAAAA";
    }
}
?>

== libaries ===========================

<?php
namespace App\Libaries;

class AcessLib{
    public function __construct() {
        echo("SSSSSSSSSSSSSSSSS");
    }

    public function test(){
//        $session = session();
        return "AAAAAAAAAAAAAAAAAAAAAA";
    }
}

===== Autoload.php ====================

public $psr4 = [
   APP_NAMESPACE => APPPATH, // For custom app namespace
   'Config'      => APPPATH . 'Config',
       'Libraries'   => APPPATH . 'Libraries'
];