Added more tests

tests/Services/Cache/UserCacheKeyGeneratorTest.php

@@ -0,0 +1,110 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2026 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\Cache;
+
+use App\Entity\UserSystem\User;
+use App\Services\Cache\UserCacheKeyGenerator;
+use PHPUnit\Framework\TestCase;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+final class UserCacheKeyGeneratorTest extends TestCase
+{
+    private function makeGenerator(?User $loggedInUser, ?Request $request = null): UserCacheKeyGenerator
+    {
+        $security = $this->createMock(Security::class);
+        $security->method('getUser')->willReturn($loggedInUser);
+
+        $requestStack = $this->createMock(RequestStack::class);
+        $requestStack->method('getCurrentRequest')->willReturn($request);
+
+        return new UserCacheKeyGenerator($security, $requestStack);
+    }
+
+    private function makeUserWithId(int $id): User
+    {
+        $user = new User();
+        $ref = new \ReflectionProperty(User::class, 'id');
+        $ref->setValue($user, $id);
+        return $user;
+    }
+
+    public function testAnonymousUserKeyContainsAnonymousId(): void
+    {
+        $service = $this->makeGenerator(null);
+        $key = $service->generateKey();
+        $this->assertStringContainsString((string) User::ID_ANONYMOUS, $key);
+    }
+
+    public function testExplicitAnonymousUserGivesSameKeyAsNull(): void
+    {
+        $anonUser = $this->makeUserWithId(User::ID_ANONYMOUS);
+        $anonUser->setName('anonymous');
+
+        $service = $this->makeGenerator(null);
+        $keyFromNull = $service->generateKey(null);
+        $keyFromAnon = $service->generateKey($anonUser);
+        $this->assertSame($keyFromNull, $keyFromAnon);
+    }
+
+    public function testKeyForRealUserContainsUserId(): void
+    {
+        $user = $this->makeUserWithId(42);
+        $service = $this->makeGenerator(null);
+
+        $key = $service->generateKey($user);
+        $this->assertStringContainsString('42', $key);
+        $this->assertStringNotContainsString((string) User::ID_ANONYMOUS, $key);
+    }
+
+    public function testLocaleFromRequestIsIncludedInKey(): void
+    {
+        $request = Request::create('/');
+        $request->setLocale('de');
+
+        $service = $this->makeGenerator(null, $request);
+        $key = $service->generateKey();
+        $this->assertStringContainsString('de', $key);
+    }
+
+    public function testDifferentUsersProduceDifferentKeys(): void
+    {
+        $service = $this->makeGenerator(null);
+
+        $user1 = $this->makeUserWithId(10);
+        $user2 = $this->makeUserWithId(20);
+
+        $this->assertNotSame($service->generateKey($user1), $service->generateKey($user2));
+    }
+
+    public function testCurrentlyLoggedInUserIsUsedWhenNoExplicitUser(): void
+    {
+        $loggedIn = $this->makeUserWithId(99);
+        $service = $this->makeGenerator($loggedIn);
+
+        $key = $service->generateKey();
+        $this->assertStringContainsString('99', $key);
+    }
+}