1 files changed, 123 insertions, 0 deletions
diff --git a/apps/dav/tests/unit/Connector/Sabre/PropFindMonitorPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/PropFindMonitorPluginTest.php
new file mode 100644
index 00000000000..b528c3d731c
--- /dev/null
+++ b/apps/dav/tests/unit/Connector/Sabre/PropFindMonitorPluginTest.php
@@ -0,0 +1,123 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace unit\Connector\Sabre;
+
+use OCA\DAV\Connector\Sabre\PropFindMonitorPlugin;
+use OCA\DAV\Connector\Sabre\Server;
+use PHPUnit\Framework\MockObject\MockObject;
+use Psr\Log\LoggerInterface;
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+use Test\TestCase;
+
+class PropFindMonitorPluginTest extends TestCase {
+
+	private PropFindMonitorPlugin $plugin;
+	private Server&MockObject $server;
+	private LoggerInterface&MockObject $logger;
+	private Request&MockObject $request;
+	private Response&MockObject $response;
+
+	public static function dataTest(): array {
+		$minQueriesTrigger = PropFindMonitorPlugin::THRESHOLD_QUERY_FACTOR
+			* PropFindMonitorPlugin::THRESHOLD_NODES;
+		return [
+			'No queries logged' => [[], 0],
+			'Plugins with queries in less than threshold nodes should not be logged' => [
+				[
+					[
+						'PluginName' => ['queries' => 100, 'nodes'
+							=> PropFindMonitorPlugin::THRESHOLD_NODES - 1]
+					],
+					[],
+				],
+				0
+			],
+			'Plugins with query-to-node ratio less than threshold should not be logged' => [
+				[
+					[
+						'PluginName' => [
+							'queries' => $minQueriesTrigger - 1,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES ],
+					],
+					[],
+				],
+				0
+			],
+			'Plugins with more nodes scanned than queries executed should not be logged' => [
+				[
+					[
+						'PluginName' => [
+							'queries' => $minQueriesTrigger,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES * 2],
+					],
+					[],
+				],
+				0
+			],
+			'Plugins with queries only in highest depth level should not be logged' => [
+				[
+					[
+						'PluginName' => [
+							'queries' => $minQueriesTrigger,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES - 1
+						]
+					],
+					[
+						'PluginName' => [
+							'queries' => $minQueriesTrigger * 2,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES
+						]
+					]
+				],
+				0
+			],
+			'Plugins with too many queries should be logged' => [
+				[
+					[
+						'FirstPlugin' => [
+							'queries' => $minQueriesTrigger,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES,
+						],
+						'SecondPlugin' => [
+							'queries' => $minQueriesTrigger,
+							'nodes' => PropFindMonitorPlugin::THRESHOLD_NODES,
+						]
+					],
+					[]
+				],
+				2
+			]
+		];
+	}
+
+	/**
+	 * @dataProvider dataTest
+	 */
+	public function test(array $queries, $expectedLogCalls): void {
+		$this->plugin->initialize($this->server);
+		$this->server->expects($this->once())->method('getPluginQueries')
+			->willReturn($queries);
+
+		$this->server->expects(empty($queries) ? $this->never() : $this->once())
+			->method('getLogger')
+			->willReturn($this->logger);
+
+		$this->logger->expects($this->exactly($expectedLogCalls))->method('error');
+		$this->plugin->afterResponse($this->request, $this->response);
+	}
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->plugin = new PropFindMonitorPlugin();
+		$this->server = $this->createMock(Server::class);
+		$this->logger = $this->createMock(LoggerInterface::class);
+		$this->request = $this->createMock(Request::class);
+		$this->response = $this->createMock(Response::class);
+	}
+}