diff --git a/tests/Feature/LockFeatureTest.php b/tests/Feature/LockFeatureTest.php
index 82d4ed42..70d32e66 100644
--- a/tests/Feature/LockFeatureTest.php
+++ b/tests/Feature/LockFeatureTest.php
@@ -7,6 +7,7 @@
 use OC\Files\Lock\LockManager;
 use OCA\FilesLock\AppInfo\Application;
 use OCA\FilesLock\Service\ConfigService;
+use OCA\FilesLock\Service\LockService;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\Files\IRootFolder;
 use OCP\Files\Lock\ILock;
@@ -195,6 +196,16 @@ public function testLockUserExpire() {
 		self::assertEquals('CCC', $file->getContent());
 	}
 
+	public function testExpiredLocksAreDeprecated() {
+		\OCP\Server::get(IConfig::class)->setAppValue(Application::APP_ID, ConfigService::LOCK_TIMEOUT, 30);
+		$file = $this->loginAndGetUserFolder(self::TEST_USER1)
+			->newFile('test-expired-lock-is-deprecated', 'AAA');
+		$this->lockManager->lock(new LockContext($file, ILock::TYPE_USER, self::TEST_USER1));
+		$this->toTheFuture(3600);
+		$deprecated = \OCP\Server::get(LockService::class)->getDeprecatedLocks();
+		self::assertNotEmpty($deprecated);
+	}
+
 	public function testLockUserInfinite() {
 		\OC::$server->getConfig()->setAppValue(Application::APP_ID, ConfigService::LOCK_TIMEOUT, 0);
 		$file = $this->loginAndGetUserFolder(self::TEST_USER1)