add comment to explain the helper function

diff --git a/apps/files_encryption/tests/util.php b/apps/files_encryption/tests/util.php
index 93b3d111e448fb77e33aaf6b5d0adf8f8fe5c8c3..fb10284c58f54f4e951791281a3eb527ce98294c 100755 (executable)
--- a/apps/files_encryption/tests/util.php
+++ b/apps/files_encryption/tests/util.php
@@ -314,6 +314,14 @@ class Test_Encryption_Util extends \PHPUnit_Framework_TestCase {
                OCA\Encryption\Hooks::login($params);
        }
 
+       /**
+        * helper function to set migration status to the right value
+        * to be able to test the migration path
+        * 
+        * @param $status needed migration status for test
+        * @param $user for which user the status should be set
+        * @return boolean
+        */
        private function setMigrationStatus($status, $user) {
                $sql = 'UPDATE `*PREFIX*encryption` SET `migration_status` = ? WHERE `uid` = ?';
                $args = array(