Comment 13 for bug 1568414

Reviewed: https://review.openstack.org/309644
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=b554a8c2232889fe1ea53ba5ae42b30c057c5a58
Submitter: Jenkins
Branch: master

commit b554a8c2232889fe1ea53ba5ae42b30c057c5a58
Author: Diana Clarke <email address hidden>
Date: Fri Apr 22 23:32:53 2016 -0400

    Fix database poison warnings, part 4

    The following warning appears in the unit test logs a number of times.
    This patch fixes 30 of those warnings from virt.libvirt.test_driver, but
    there are still a bunch more in that file.

        "UserWarning: This test uses methods that set internal oslo_db
    state, but it does not claim to use the database. This will conflict
    with the setup of tests that do use the database and cause failures
    later."

    Note that this warning is only emitted once per unit test worker, so new
    offenders will show up in the logs each time you fix a test until they
    are all gone.

    Change-Id: I6eb16fbd1eaac6da9f4e75506729eaf050bda1cf
    Related-Bug: #1568414