test: addd test for hideFromCollaboration

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

tests/lib/Group/HideFromCollaborationTest.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace Test\Group;
+
+use OC\Group\Group;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Group\Backend\ABackend;
+use OCP\Group\Backend\IHideFromCollaborationBackend;
+use OCP\IUserManager;
+use PHPUnit\Framework\MockObject\MockObject;
+use Test\TestCase;
+
+abstract class HideFromCollaborationBackendTest extends ABackend implements IHideFromCollaborationBackend {
+
+}
+
+class HideFromCollaborationTest extends TestCase {
+
+	private IUserManager&MockObject $userManager;
+	private IEventDispatcher&MockObject $dispatcher;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->userManager = $this->createMock(IUserManager::class);
+		$this->dispatcher = $this->createMock(IEventDispatcher::class);
+	}
+
+
+	public function testHideFromCollaboration(): void {
+		// Arrange
+		$backend1 = $this->createMock(HideFromCollaborationBackendTest::class);
+		$backend1->method('hideGroup')
+			->willReturn(false);
+		$backend2 = $this->createMock(HideFromCollaborationBackendTest::class);
+		$backend2->method('hideGroup')
+			->willReturn(true);
+		$group = new Group('group1', [$backend1, $backend2], $this->dispatcher, $this->userManager);
+
+		// Act
+		$result = $group->hideFromCollaboration();
+
+		// Assert
+		$this->assertTrue($result);
+	}
+}