MVC indexController not using the correct action - php

Question

I have two Actions in my IndexController.
public function indexAction()
{
$this->view->setVars([
'name' => 'Stefan',
]);
}
public function testAction()
{
$this->view->setVars([
'name' => 'testOutput',
]);
}
When going to call my index page
https://localhost/index/
It does output the name that i set in my views/index/index.php
<h1>Hello <?php echo $name ?></h1>
And i do get the output
Hello Stefan
Problem:
If i got to
https://localhost/index/test
I also get the same output even tho i cleary stated something else in my testAction
So he Acces the indexAction even if im in not calling the Action in my browser.
What i would want is, since i have echo $name; in my test.php file.
That i get the output
testOutput
Here would be my Autoloader.
Thank you in advance.
<?php
// simple autoloader
spl_autoload_register(function ($className) {
if (substr($className, 0, 4) !== 'Mvc\\') {
// not our business
return;
}
$fileName = __DIR__.'/'.str_replace('\\', DIRECTORY_SEPARATOR, substr($className, 4)).'.php';
if (file_exists($fileName)) {
include $fileName;
}
});
// get the requested url
$url = (isset($_GET['_url']) ? $_GET['_url'] : '');
$urlParts = explode('/', $url);
// build the controller class
$controllerName = (isset($urlParts[0]) && $urlParts[0] ? $urlParts[0] : 'index');
$controllerClassName = '\\Mvc\\Controller\\'.ucfirst($controllerName).'Controller';
// build the action method
$actionName = (isset($urlParts[1]) && $urlParts[1] ? $urlParts[1] : 'index');
$actionMethodName = $actionName.'Action';
try {
if (!class_exists($controllerClassName)) {
throw new \Mvc\Library\NotFoundException();
}
$controller = new $controllerClassName();
if (!$controller instanceof \Mvc\Controller\Controller || !method_exists($controller, $actionMethodName)) {
throw new \Mvc\Library\NotFoundException();
}
$view = new \Mvc\Library\View(__DIR__.DIRECTORY_SEPARATOR.'views', $controllerName, $actionName);
$controller->setView($view);
$controller->$actionMethodName();
$view->render();
} catch (\Mvc\Library\NotFoundException $e) {
http_response_code(404);
echo 'Page not found: '.$controllerClassName.'::'.$actionMethodName;
} catch (\Exception $e) {
http_response_code(500);
echo 'Exception: <b>'.$e->getMessage().'</b><br><pre>'.$e->getTraceAsString().'</pre>';
}
EDIT:
It really doesnt matter what i action i call after the index. it can be index/asdsad
And he still goes to the main indexAction.
It doesnt even say that he can't find the action.
EDIT2:
Output from var_dump($url,$urlParts,$controllerName,$actionMethodName)
string(0) ""
array(1) {
[0]=>
string(0) ""
}
string(5) "index"
string(11) "indexAction"