The ipv6 tests are run optimistically based on the results of skip_if_no_ipv6() at https://github.com/openstack/keystone/blob/master/keystone/test.py#L352.
The ipv6 tests are run optimistically based on the results of skip_if_no_ipv6() at https:/ /github. com/openstack/ keystone/ blob/master/ keystone/ test.py# L352.