objects: Enforce UUID type check in tests

[ChangBo Guo(gcb)]

oslo_versionedobjects.fields.UUIDField will validate UUID in next major release, but nova has many tests with invalid uuids. So need fixes tests before moving to new major release of oslo.versionedobjects. For more details, please see:

http://docs.openstack.org/developer/oslo.versionedobjects/api/fields.html#oslo_versionedobjects.fields.UUIDField

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/316723

[ChangBo Guo(gcb) (glongwave)]

The trigger POC in :
https://review.openstack.org/#/c/316620

8 Failures in functional tests:

http://logs.openstack.org/20/316620/1/check/gate-nova-tox-db-functional/8af8b9e/testr_results.html.gz

316 Failures in unit tests:

http://logs.openstack.org/20/316620/1/check/gate-nova-python27-db/8914db3/testr_results.html.gz

[ChangBo Guo(gcb) (glongwave)]

Current there are many FutureWarnings like:

2016-03-23 10:58:22.085 | Captured stderr:
2016-03-23 10:58:22.085 | ~~~~~~~~~~~~~~~~
2016-03-23 10:58:22.085 | /home/jenkins/workspace/gate-nova-python27-db/.tox/py27/local/lib/python2.7/site-packages/oslo_versionedobjects/fields.py:325: FutureWarning: 1 is an invalid UUID. Using UUIDFields with invalid UUIDs is no longer supported, and will be removed in a future release. Please update your code to input valid UUIDs or accept ValueErrors for invalid UUIDs. See http://docs.openstack.org/developer/oslo.versionedobjects/api/fields.html#oslo_versionedobjects.fields.UUIDField for further details
2016-03-23 10:58:22.085 | "for further details" % value, FutureWarning)

http://logs.openstack.org/81/187881/5/check/gate-nova-python27-db/c70fe76/console.html.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/316791

[OpenStack Infra (hudson-openstack)]

Change abandoned by ChangBo Guo(gcb) (<email address hidden>) on branch: master
Review: https://review.openstack.org/316791
Reason: thanks, abandon this