trait MenuUiTrait

trait MenuUiTrait {
    
    /**
     * Asserts that a menu fetched from the database matches an expected one.
     *
     * @param array $expected_item
     *   Array containing properties to check.
     * @param int $menu_plugin_id
     *   Menu item id.
     */
    protected function assertMenuLink(array $expected_item, $menu_plugin_id) {
        // Retrieve the menu link.
        
        /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
        $menu_link_manager = \Drupal::service('plugin.manager.menu.link');
        $menu_link_manager->resetDefinitions();
        // Reset the static load cache.
        \Drupal::entityTypeManager()->getStorage('menu_link_content')
            ->resetCache();
        $definition = $menu_link_manager->getDefinition($menu_plugin_id);
        $entity = NULL;
        // Pull the path from the menu link content.
        if (strpos($menu_plugin_id, 'menu_link_content') === 0) {
            [
                ,
                $uuid,
            ] = explode(':', $menu_plugin_id, 2);
            
            /** @var \Drupal\menu_link_content\Entity\MenuLinkContent $entity */
            $entity = \Drupal::service('entity.repository')->loadEntityByUuid('menu_link_content', $uuid);
        }
        if (isset($expected_item['children'])) {
            $child_ids = array_values($menu_link_manager->getChildIds($menu_plugin_id));
            sort($expected_item['children']);
            if ($child_ids) {
                sort($child_ids);
            }
            $this->assertSame($expected_item['children'], $child_ids);
            unset($expected_item['children']);
        }
        if (isset($expected_item['parents'])) {
            $parent_ids = array_values($menu_link_manager->getParentIds($menu_plugin_id));
            $this->assertSame($expected_item['parents'], $parent_ids);
            unset($expected_item['parents']);
        }
        if (isset($expected_item['langcode']) && $entity) {
            $this->assertEquals($expected_item['langcode'], $entity->langcode->value);
            unset($expected_item['langcode']);
        }
        if (isset($expected_item['enabled']) && $entity) {
            $this->assertEquals($expected_item['enabled'], $entity->enabled->value);
            unset($expected_item['enabled']);
        }
        foreach ($expected_item as $key => $value) {
            $this->assertNotNull($definition[$key]);
            $this->assertSame($value, $definition[$key]);
        }
    }

}