Problems with Unit Testing

Hello,

I want to make some unit tests but allways get an error:

CodeIgniter\Exceptions\PageNotFoundException: Controller or its method is not found: \App\Controllers\Tests::codeigniter

but I dont want to test the Tests Controller

PHP Code:

<?php

namespace App;

use CodeIgniter\Test\FeatureTestCase ;

class TestHome extends FeatureTestCase
{
    public function setUp(): void
    {
        parent::setUp();
    }

    public function tearDown(): void
    {
        parent::tearDown();
    }

    public function testIndex(){

        $this->get("/");
    }

}