Merge "Fix test_volume_services testcase"
diff --git a/tempest/api/volume/admin/test_volume_services.py b/tempest/api/volume/admin/test_volume_services.py
index 755365d..165874b 100644
--- a/tempest/api/volume/admin/test_volume_services.py
+++ b/tempest/api/volume/admin/test_volume_services.py
@@ -79,7 +79,7 @@
         services = (self.admin_volume_services_client.list_services(
             host=self.host_name, binary=self.binary_name))['services']
 
-        self.assertEqual(1, len(services))
+        self.assertNotEqual(0, len(services))
         self.assertEqual(self.host_name, _get_host(services[0]['host']))
         self.assertEqual(self.binary_name, services[0]['binary'])