Add more tests and fix failing ones

tests/Services/Parts/PartsTableActionHandlerTest.php

@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2023 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 Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+namespace App\Tests\Services\Parts;
+
+use App\Entity\Parts\Part;
+use App\Services\Parts\PartsTableActionHandler;
+use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+class PartsTableActionHandlerTest extends WebTestCase
+{
+    private PartsTableActionHandler $service;
+
+    protected function setUp(): void
+    {
+        self::bootKernel();
+        $this->service = self::getContainer()->get(PartsTableActionHandler::class);
+    }
+
+    public function testExportActionsRedirectToExportController(): void
+    {
+        // Mock a Part entity with required properties
+        $part = $this->createMock(Part::class);
+        $part->method('getId')->willReturn(1);
+        $part->method('getName')->willReturn('Test Part');
+        
+        $selected_parts = [$part];
+
+        // Test each export format, focusing on our new xlsx format
+        $formats = ['json', 'csv', 'xml', 'yaml', 'xlsx'];
+        
+        foreach ($formats as $format) {
+            $action = "export_{$format}";
+            $result = $this->service->handleAction($action, $selected_parts, 1, '/test');
+            
+            $this->assertInstanceOf(RedirectResponse::class, $result);
+            $this->assertStringContainsString('parts/export', $result->getTargetUrl());
+            $this->assertStringContainsString("format={$format}", $result->getTargetUrl());
+        }
+    }
+
+    public function testIdStringToArray(): void
+    {
+        // This test would require actual Part entities in the database
+        // For now, we just test the method exists and handles empty strings
+        $result = $this->service->idStringToArray('');
+        $this->assertIsArray($result);
+        $this->assertEmpty($result);
+    }
+}