test: cover docmdp config default and toggle semantics

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

tests/php/Unit/Service/DocMdp/ConfigServiceTest.php

@@ -0,0 +1,138 @@
+<?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\DocMdp;
+
+use OCA\Libresign\AppInfo\Application;
+use OCA\Libresign\Enum\DocMdpLevel;
+use OCA\Libresign\Service\DocMdp\ConfigService;
+use OCP\IAppConfig;
+use OCP\IL10N;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+final class ConfigServiceTest extends TestCase {
+	private IAppConfig&MockObject $appConfig;
+	private IL10N&MockObject $l10n;
+
+	protected function setUp(): void {
+		$this->appConfig = $this->createMock(IAppConfig::class);
+		$this->l10n = $this->createMock(IL10N::class);
+		$this->l10n->method('t')->willReturnArgument(0);
+	}
+
+	private function createService(): ConfigService {
+		return new ConfigService($this->appConfig, $this->l10n);
+	}
+
+	#[DataProvider('providerGetLevelCases')]
+	public function testGetLevelReturnsExpectedEnum(int $storedLevel, DocMdpLevel $expectedLevel): void {
+		$this->appConfig
+			->expects($this->once())
+			->method('getValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::CERTIFIED_FORM_FILLING->value)
+			->willReturn($storedLevel);
+
+		$service = $this->createService();
+
+		$this->assertSame($expectedLevel, $service->getLevel());
+	}
+
+	#[DataProvider('providerGetConfigCases')]
+	public function testGetConfigReturnsExpectedState(int $storedLevel, bool $expectedEnabled, int $expectedDefaultLevel): void {
+		$this->appConfig
+			->method('getValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::CERTIFIED_FORM_FILLING->value)
+			->willReturn($storedLevel);
+
+		$service = $this->createService();
+		$config = $service->getConfig();
+
+		$this->assertSame($expectedEnabled, $config['enabled']);
+		$this->assertSame($expectedDefaultLevel, $config['defaultLevel']);
+	}
+
+	public function testSetEnabledFalseSetsNotCertifiedLevel(): void {
+		$this->appConfig
+			->expects($this->once())
+			->method('setValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::NOT_CERTIFIED->value);
+
+		$service = $this->createService();
+		$service->setEnabled(false);
+	}
+
+	public function testSetEnabledTrueRestoresDefaultLevelWhenCurrentlyDisabled(): void {
+		$this->appConfig
+			->expects($this->once())
+			->method('getValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::CERTIFIED_FORM_FILLING->value)
+			->willReturn(DocMdpLevel::NOT_CERTIFIED->value);
+
+		$this->appConfig
+			->expects($this->once())
+			->method('setValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::CERTIFIED_FORM_FILLING->value);
+
+		$service = $this->createService();
+		$service->setEnabled(true);
+	}
+
+	public function testSetEnabledTrueKeepsCurrentLevelWhenAlreadyEnabled(): void {
+		$this->appConfig
+			->expects($this->once())
+			->method('getValueInt')
+			->with(Application::APP_ID, 'docmdp_level', DocMdpLevel::CERTIFIED_FORM_FILLING->value)
+			->willReturn(DocMdpLevel::CERTIFIED_NO_CHANGES_ALLOWED->value);
+
+		$this->appConfig
+			->expects($this->never())
+			->method('setValueInt');
+
+		$service = $this->createService();
+		$service->setEnabled(true);
+	}
+
+	public static function providerGetLevelCases(): array {
+		return [
+			'default/fallback level is form filling' => [
+				DocMdpLevel::CERTIFIED_FORM_FILLING->value,
+				DocMdpLevel::CERTIFIED_FORM_FILLING,
+			],
+			'explicit no changes level' => [
+				DocMdpLevel::CERTIFIED_NO_CHANGES_ALLOWED->value,
+				DocMdpLevel::CERTIFIED_NO_CHANGES_ALLOWED,
+			],
+			'explicit annotations level' => [
+				DocMdpLevel::CERTIFIED_FORM_FILLING_AND_ANNOTATIONS->value,
+				DocMdpLevel::CERTIFIED_FORM_FILLING_AND_ANNOTATIONS,
+			],
+		];
+	}
+
+	public static function providerGetConfigCases(): array {
+		return [
+			'not configured defaults to enabled and level 2' => [
+				DocMdpLevel::CERTIFIED_FORM_FILLING->value,
+				true,
+				2,
+			],
+			'explicitly disabled with level 0' => [
+				DocMdpLevel::NOT_CERTIFIED->value,
+				false,
+				0,
+			],
+			'configured certifying level is reflected as enabled' => [
+				DocMdpLevel::CERTIFIED_NO_CHANGES_ALLOWED->value,
+				true,
+				1,
+			],
+		];
+	}
+}