MenuLinkDefaultIntegrationTest.php

<?php

namespace Drupal\KernelTests\Core\Menu;

use Drupal\Core\Menu\MenuTreeParameters;
use Drupal\KernelTests\KernelTestBase;

/**
 * Tests integration of static menu links.
 *
 * @group Menu
 */
class MenuLinkDefaultIntegrationTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'menu_test',
    ];
    
    /**
     * Tests moving a static menu link without a specified menu to the root.
     */
    public function testMoveToRoot() {
        
        /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
        $menu_link_manager = \Drupal::service('plugin.manager.menu.link');
        $menu_link_manager->rebuild();
        $menu_link = $menu_link_manager->getDefinition('menu_test.child');
        $this->assertEquals('menu_test.parent', $menu_link['parent']);
        $this->assertEquals('test', $menu_link['menu_name']);
        $tree = \Drupal::menuTree()->load('test', new MenuTreeParameters());
        $this->assertCount(1, $tree);
        $this->assertEquals('menu_test.parent', $tree['menu_test.parent']->link
            ->getPluginId());
        $this->assertEquals('menu_test.child', $tree['menu_test.parent']->subtree['menu_test.child']->link
            ->getPluginId());
        // Ensure that the menu name is not forgotten.
        $menu_link_manager->updateDefinition('menu_test.child', [
            'parent' => '',
        ]);
        $menu_link = $menu_link_manager->getDefinition('menu_test.child');
        $this->assertEquals('', $menu_link['parent']);
        $this->assertEquals('test', $menu_link['menu_name']);
        $tree = \Drupal::menuTree()->load('test', new MenuTreeParameters());
        $this->assertCount(2, $tree);
        $this->assertEquals('menu_test.parent', $tree['menu_test.parent']->link
            ->getPluginId());
        $this->assertEquals('menu_test.child', $tree['menu_test.child']->link
            ->getPluginId());
        $this->assertTrue(TRUE);
    }

}