test: add tests/php/Unit/Service/Policy/Provider/SignatureHashAlgorithm/SignatureHashAlgorithmPolicyTest.php

Signed-off-by: Vitor Mattos <[email protected]>

Author: vitormattos

tests/php/Unit/Service/Policy/Provider/SignatureHashAlgorithm/SignatureHashAlgorithmPolicyTest.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Libresign\Tests\Unit\Service\Policy\Provider\SignatureHashAlgorithm;
+
+use OCA\Libresign\Service\Policy\Provider\SignatureHashAlgorithm\SignatureHashAlgorithmPolicy;
+use PHPUnit\Framework\TestCase;
+
+final class SignatureHashAlgorithmPolicyTest extends TestCase {
+	public function testProviderBuildsDefinition(): void {
+		$provider = new SignatureHashAlgorithmPolicy();
+		$this->assertSame([SignatureHashAlgorithmPolicy::KEY], $provider->keys());
+
+		$definition = $provider->get(SignatureHashAlgorithmPolicy::KEY);
+		$this->assertSame(SignatureHashAlgorithmPolicy::KEY, $definition->key());
+		$this->assertSame('SHA256', $definition->defaultSystemValue());
+	}
+
+	public function testNormalizesToAllowedAlgorithm(): void {
+		$provider = new SignatureHashAlgorithmPolicy();
+		$definition = $provider->get(SignatureHashAlgorithmPolicy::KEY);
+
+		$this->assertSame('SHA512', $definition->normalizeValue('sha512'));
+		$this->assertSame('SHA256', $definition->normalizeValue('unknown'));
+	}
+}