See below:
$ source /opt/stack/devstack/openrc admin admin
$ cd /opt/stack/python-zunclient/
$ ./tools/run_functional.sh
...
$ zun list
+--------------------------------------+----------------------------------+--------+---------+------------+--------------------------+-------+
| uuid | name | image | status | task_state | addresses | ports |
+--------------------------------------+----------------------------------+--------+---------+------------+--------------------------+-------+
| 9e29a029-88d2-4340-80be-2ea8507aeac7 | test | cirros | Created | None | 172.24.4.3, 2001:db8::b | [] |
| 17f35642-704f-4454-8a40-0bd37631f06c | tempest-test_container-631089628 | cirros | Created | None | 172.24.4.13, 2001:db8::c | [] |
| 8748b2dd-bf3d-42b4-bdbe-a2474726f888 | test_del | cirros | Created | None | 172.24.4.8, 2001:db8::6 | [] |
| 79c1e0a8-9b88-44e9-baa2-95b40068deed | test_new | cirros | Created | None | 172.24.4.14, 2001:db8::9 | [] |
| ef734b1e-4a7e-4176-8313-9cae35172214 | test_show | cirros | Created | None | 172.24.4.6, 2001:db8::f | [] |
+--------------------------------------+----------------------------------+--------+---------+------------+--------------------------+-------+
The containers used by the tests are not clean up. It is better to clean this up. Ideally, all containers used by the tests should be deleted after the test run.
There is no activity for fixing this bug for a while. I am going to remove assignee so that other contributors can take it, but please feel free to re-assign it to yourself if you want to continue to work on this bug.