Laravelのコントローラーとは

Route::get('/test', 'TestController@func');

namespace App\Http\Controllers;

use App\Repositories\TestRepository;
use Carbon\Carbon;
use DB;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Log;
use Validator;
 

class TestController extends Controller
{
    protected $testRepository;
    
    /*
     * コンストラクタ
     */
    public function __construct(
            TestRepository $testRepository
            ){
        $this->testRepository = $testRepository;
    }
    
    public function func(){
        
        $items = $this->testRepository->getItems();
                
        return view('index'
            , [
                'items' => $items,
            ]);
    }

}