https://github.com/openstack/keystone/blob/8f30e9a0785234a5a9cf4daaa95207c9adb10835/keystone/tests/unit/core.py#L543
https:/ /github. com/openstack/ keystone/ blob/8f30e9a078 5234a5a9cf4daaa 95207c9adb10835 /keystone/ tests/unit/ core.py# L543