Editing Wordpress menu items

// WordPress snippet to alter menu items - add something to title or etc.
// (c) Stephen Harris - http://wordpress.stackexchange.com/questions/40226/adding-custom-text-in-items-titles-from-wp-nav-menu
add_filter( 'wp_setup_nav_menu_item','my_item_setup' );
function my_item_setup($item) {
    //Use the following to conduct logic;
    $object_id = (int) $item->object_id; //object ID.
    $object_type = $item->type; //E.g. 'post_type'
    $object_type_label = $item->type_label; //E.g. 'post' or 'page';

    //You could, optionally add classes to the menu item.
    $item_class = $item->classes;

    //Make sure $item_class is an array.
    //Alter the class:
    $item->classes= $item_class;

    //Alter the title:
    $pack_meta_value = get_post_meta($object_id, 'test', true );
     if($pack_meta_value ){
         $item->title = $item->title.'<span>' . $pack_meta_value . '</span>';
     }

    return $item;
}