Added tests for LabelPlaceholder Providers.

tests/Services/LabelSystem/PlaceholderProviders/AbstractElementProviderTest.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 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\LabelSystem\PlaceholderProviders;
+
+use App\Entity\Base\AbstractDBElement;
+use App\Entity\Parts\Part;
+use App\Services\LabelSystem\PlaceholderProviders\AbstractDBElementProvider;
+use App\Services\LabelSystem\PlaceholderProviders\GlobalProviders;
+use PHPUnit\Framework\TestCase;
+use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
+
+class AbstractElementProviderTest extends WebTestCase
+{
+    /** @var AbstractDBElementProvider */
+    protected $service;
+
+    protected $target;
+
+    public function setUp(): void
+    {
+        self::bootKernel();
+        $this->service = self::$container->get(AbstractDBElementProvider::class);
+        $this->target = new class extends AbstractDBElement {
+            protected $id = 123;
+
+            /**
+             * @inheritDoc
+             */
+            public function getIDString(): string
+            {
+                return 'ignore';
+            }
+        };
+    }
+
+    public function dataProvider(): array
+    {
+        return [
+            ['123', '%%ID%%'],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProvider
+     */
+    public function testReplace(string $expected, string $placeholder): void
+    {
+        $this->assertSame($expected, $this->service->replace($placeholder, $this->target));
+    }
+}