diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 77f92c9..9fc147a 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -288,6 +288,26 @@
         self.assertEqual(202, resp.status)
         self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
 
+    @attr(type='gate')
+    def test_lock_unlock_server(self):
+        # Lock the server,try server stop(exceptions throw),unlock it and retry
+        resp, server = self.servers_client.lock_server(self.server_id)
+        self.assertEqual(202, resp.status)
+        resp, server = self.servers_client.get_server(self.server_id)
+        self.assertEqual(200, resp.status)
+        self.assertEqual(server['status'], 'ACTIVE')
+        # Locked server is not allowed to be stopped by non-admin user
+        self.assertRaises(exceptions.BadRequest,
+                          self.servers_client.stop, self.server_id)
+        resp, server = self.servers_client.unlock_server(self.server_id)
+        self.assertEqual(202, resp.status)
+        resp, server = self.servers_client.stop(self.server_id)
+        self.assertEqual(202, resp.status)
+        self.servers_client.wait_for_server_status(self.server_id, 'SHUTOFF')
+        resp, server = self.servers_client.start(self.server_id)
+        self.assertEqual(202, resp.status)
+        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
+
 
 class ServerActionsTestXML(ServerActionsTestJSON):
     _interface = 'xml'
diff --git a/tempest/services/compute/xml/servers_client.py b/tempest/services/compute/xml/servers_client.py
index bf72bdc..9b688aa 100644
--- a/tempest/services/compute/xml/servers_client.py
+++ b/tempest/services/compute/xml/servers_client.py
@@ -193,6 +193,14 @@
         server = self._parse_server(etree.fromstring(body))
         return resp, server
 
+    def lock_server(self, server_id, **kwargs):
+        """Locks the given server."""
+        return self.action(server_id, 'lock', None, **kwargs)
+
+    def unlock_server(self, server_id, **kwargs):
+        """Unlocks the given server."""
+        return self.action(server_id, 'unlock', None, **kwargs)
+
     def suspend_server(self, server_id, **kwargs):
         """Suspends the provided server."""
         return self.action(server_id, 'suspend', None, **kwargs)