Comment 7 for bug 1327397

Reviewed: https://review.openstack.org/93424
Committed: https://git.openstack.org/cgit/openstack/oslo.db/commit/?id=c34c32e09ed1f170dfe62c7daedf0cd60f57a833
Submitter: Jenkins
Branch: master

commit c34c32e09ed1f170dfe62c7daedf0cd60f57a833
Author: Ilya Pekelny <email address hidden>
Date: Tue May 13 14:44:54 2014 +0300

    Opportunistic migration tests

    Migrations should be tested with real database backends. For this goal
    intended number of base test cases which used in current implementation.
    Previously there were two ways to run migration tests: using
    opportunistic test cases (default way we've been using on CI) and
    by using database connection strings, specified in test_migrations.conf,
    for every particular database test case. For the sake of simplicity and
    consistency we are moving to using of opportunistic db test cases here.

    With this change we are free from locking, so we don't need `lockfile`
    anymore.

    Closes-Bug: #1327397
    Closes-Bug: #1328997
    Change-Id: I92b1dcd830c4755f429a0f6529911e607c2c7de7