diff --git a/tests/lib/encryption/keys/storage.php b/tests/lib/encryption/keys/storage.php
index b5b91f886a38..1b92327e7529 100644
--- a/tests/lib/encryption/keys/storage.php
+++ b/tests/lib/encryption/keys/storage.php
@@ -24,17 +24,29 @@
 namespace Test\Encryption\Keys;
 
 use OC\Encryption\Keys\Storage;
+use OC\Encryption\Util;
+use OC\Files\View;
 use Test\TestCase;
+use Test\Traits\UserTrait;
 
+/**
+ * Class StorageTest
+ *
+ * @group DB
+ *
+ * @package Test\Encryption\Keys
+ */
 class StorageTest extends TestCase {
 
+	use UserTrait;
+
 	/** @var Storage */
 	protected $storage;
 
-	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	/** @var \PHPUnit_Framework_MockObject_MockObject | Util */
 	protected $util;
 
-	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	/** @var \PHPUnit_Framework_MockObject_MockObject | View */
 	protected $view;
 
 	/** @var \PHPUnit_Framework_MockObject_MockObject */
@@ -55,6 +67,9 @@ public function setUp() {
 			->disableOriginalConstructor()
 			->getMock();
 
+		$this->createUser('user1', '123456');
+		$this->createUser('user2', '123456');
+
 		$this->storage = new Storage($this->view, $this->util);
 	}