Comment 2 for bug 1767142

Reviewed: https://review.openstack.org/564649
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=b2179479db28bb222412f700c09985578b935084
Submitter: Zuul
Branch: master

commit b2179479db28bb222412f700c09985578b935084
Author: Brian Rosmaita <email address hidden>
Date: Thu Apr 26 19:04:58 2018 -0400

    Add time-bounded wait-for-status to func tests

    Replace strategy of time.sleep(s_value) waiting for an image to
    reach 'active' with a time-bounded wait-for-status loop function.
    That way we can have a more generous s_value, which seems to
    sometimes be needed in the gates, without having to use that much
    time on every run.

    I picked the initial s_value as 4x what was in the current code,
    though given that some of the other gate tests run >1 hour, we could
    easily make it 600 sec without lengthening the current minimum
    time-to-verification of a patch.

    Closes-bug: #1767142
    Change-Id: Ib771079348d22212c7b6d90fa89e7fd4161422d3