Added more tests

tests/Validator/Constraints/UniquePartIpnValidatorTest.php

@@ -0,0 +1,103 @@
+<?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\Validator\Constraints;
+
+use App\Entity\Base\AbstractDBElement;
+use App\Entity\Parts\Part;
+use App\Settings\MiscSettings\IpnSuggestSettings;
+use App\Validator\Constraints\UniquePartIpnConstraint;
+use App\Validator\Constraints\UniquePartIpnValidator;
+use Doctrine\ORM\EntityManagerInterface;
+use PHPUnit\Framework\MockObject\MockObject;
+use Symfony\Component\Validator\ConstraintValidatorInterface;
+use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
+
+final class UniquePartIpnValidatorTest extends ConstraintValidatorTestCase
+{
+    private EntityManagerInterface&MockObject $em;
+    private IpnSuggestSettings&MockObject $ipnSettings;
+
+    protected function createValidator(): ConstraintValidatorInterface
+    {
+        $this->em = $this->createMock(EntityManagerInterface::class);
+        // createMock() bypasses the ForbidConstructorTrait; public properties are accessible directly
+        $this->ipnSettings = $this->createMock(IpnSuggestSettings::class);
+        $this->ipnSettings->autoAppendSuffix = false;
+
+        return new UniquePartIpnValidator($this->em, $this->ipnSettings);
+    }
+
+    public function testNullValueIsValid(): void
+    {
+        $this->validator->validate(null, new UniquePartIpnConstraint());
+        $this->assertNoViolation();
+    }
+
+    public function testEmptyStringIsValid(): void
+    {
+        $this->validator->validate('', new UniquePartIpnConstraint());
+        $this->assertNoViolation();
+    }
+
+    public function testAutoAppendSuffixSkipsValidation(): void
+    {
+        $this->ipnSettings->autoAppendSuffix = true;
+        $this->validator->validate('IPN-001', new UniquePartIpnConstraint());
+        $this->assertNoViolation();
+    }
+
+    public function testUniqueIpnIsValid(): void
+    {
+        $repo = $this->createMock(\Doctrine\ORM\EntityRepository::class);
+        $repo->method('findBy')->willReturn([]);
+        $this->em->method('getRepository')->willReturn($repo);
+
+        $part = new Part();
+        $this->setObject($part);
+
+        $this->validator->validate('UNIQUE-IPN', new UniquePartIpnConstraint());
+        $this->assertNoViolation();
+    }
+
+    public function testDuplicateIpnRaisesViolation(): void
+    {
+        $existingPart = new Part();
+        $ref = new \ReflectionProperty(AbstractDBElement::class, 'id');
+        $ref->setValue($existingPart, 99);
+
+        $repo = $this->createMock(\Doctrine\ORM\EntityRepository::class);
+        $repo->method('findBy')->willReturn([$existingPart]);
+        $this->em->method('getRepository')->willReturn($repo);
+
+        // Validated part has no ID (new, unsaved part)
+        $part = new Part();
+        $this->setObject($part);
+
+        $constraint = new UniquePartIpnConstraint();
+        $this->validator->validate('DUPLICATE-IPN', $constraint);
+        $this->buildViolation($constraint->message)
+            ->setParameter('{{ value }}', 'DUPLICATE-IPN')
+            ->assertRaised();
+    }
+}