test: standardize PHPUnit test naming

AGENTS.md

@@ -128,6 +128,10 @@ lib/Controller/CrlApiController.php
   -> tests/php/Unit/Controller/CrlApiControllerTest.php
 ```
 
+Before creating, renaming, or modifying PHPUnit tests, read and follow
+the naming conventions and exceptions in the
+[Developer Manual](https://docs.libresign.coop/developer_manual/getting-started/tests.html).
+
 Run focused tests during implementation:
 
 ```bash

tests/php/Integration/BackgroundJob/SignFileJobTest.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Libresign\Tests\Integration\BackgroundJob;
+
+use OCA\Libresign\BackgroundJob\SignFileJob;
+use OCP\App\IAppManager;
+use OCP\Server;
+use PHPUnit\Framework\TestCase;
+
+final class SignFileJobTest extends TestCase {
+	public function testJobIsNotAutomaticallyRegistered(): void {
+		$infoXmlPath = realpath(__DIR__ . '/../../../../appinfo/info.xml');
+		$this->assertNotFalse($infoXmlPath, 'appinfo/info.xml must exist');
+
+		$appInfo = Server::get(IAppManager::class)->getAppInfoByPath($infoXmlPath);
+		$this->assertIsArray($appInfo, 'appinfo/info.xml must be parseable by Nextcloud');
+
+		$jobs = $appInfo['background-jobs'];
+		$this->assertNotContains(SignFileJob::class, $jobs);
+	}
+}

tests/php/Integration/AppInfo/BackgroundJobsRegistrationTest.php → tests/php/Integration/BackgroundJob/SignSingleFileJobTest.php

@@ -1,29 +1,28 @@
 <?php
 
 declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
-namespace OCA\Libresign\Tests\Integration\AppInfo;
+namespace OCA\Libresign\Tests\Integration\BackgroundJob;
 
-use OCA\Libresign\BackgroundJob\SignFileJob;
 use OCA\Libresign\BackgroundJob\SignSingleFileJob;
 use OCP\App\IAppManager;
 use OCP\Server;
 use PHPUnit\Framework\TestCase;
 
-final class BackgroundJobsRegistrationTest extends TestCase {
-	public function testParameterizedSigningJobsAreNotRegisteredWithoutArguments(): void {
+final class SignSingleFileJobTest extends TestCase {
+	public function testJobIsNotAutomaticallyRegistered(): void {
 		$infoXmlPath = realpath(__DIR__ . '/../../../../appinfo/info.xml');
 		$this->assertNotFalse($infoXmlPath, 'appinfo/info.xml must exist');
 
 		$appInfo = Server::get(IAppManager::class)->getAppInfoByPath($infoXmlPath);
 		$this->assertIsArray($appInfo, 'appinfo/info.xml must be parseable by Nextcloud');
-		$jobs = $appInfo['background-jobs'];
 
-		$this->assertNotContains(SignFileJob::class, $jobs);
+		$jobs = $appInfo['background-jobs'];
 		$this->assertNotContains(SignSingleFileJob::class, $jobs);
 	}
 }

tests/php/Integration/Db/CrlMapperDbTest.php → tests/php/Integration/Db/CrlMapperTest.php

@@ -19,7 +19,7 @@
 /**
  * @group DB
  */
-final class CrlMapperDbTest extends \OCA\Libresign\Tests\Integration\TestCase {
+final class CrlMapperTest extends \OCA\Libresign\Tests\Integration\TestCase {
 	private CrlMapper $crlMapper;
 
 	public function setUp(): void {

tests/php/Integration/Service/FolderServiceDbTest.php → tests/php/Integration/Service/FolderServiceTest.php

@@ -14,7 +14,7 @@
  * @internal
  * @group DB
  */
-final class FolderServiceDbTest extends \OCA\Libresign\Tests\Integration\TestCase {
+final class FolderServiceTest extends \OCA\Libresign\Tests\Integration\TestCase {
 	/** @runInSeparateProcess */
 	public function testGetFolderRestoresMissingUserFilesystemBeforeWriting(): void {
 		$user = $this->createAccount('folderserviceuser', 'password');