Cache the trees structures for treeViews used in the sidebar.

tests/Repository/NamedDBElementRepositoryTest.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+namespace App\Tests\Repository;
+
+use App\Entity\Attachments\AttachmentType;
+use App\Entity\UserSystem\User;
+use App\Helpers\TreeViewNode;
+use App\Repository\NamedDBElementRepository;
+use App\Repository\StructuralDBElementRepository;
+use PHPUnit\Framework\TestCase;
+use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
+
+/**
+ * @Group DB
+ */
+class NamedDBElementRepositoryTest extends WebTestCase
+{
+
+    private $entityManager;
+    /** @var StructuralDBElementRepository */
+    private $repo;
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function setUp() : void
+    {
+        $kernel = self::bootKernel();
+
+        $this->entityManager = $kernel->getContainer()
+            ->get('doctrine')
+            ->getManager();
+
+        $this->repo = $this->entityManager->getRepository(User::class);
+    }
+
+    public function testGetGenericNodeTree()
+    {
+        $tree = $this->repo->getGenericNodeTree();
+
+        $this->assertIsArray($tree);
+        $this->assertContainsOnlyInstancesOf(TreeViewNode::class, $tree);
+        $this->assertCount(4, $tree);
+        $this->assertEquals('anonymous', $tree[0]->getText());
+        $this->assertEmpty($tree[0]->getNodes());
+    }
+}