Comment 9 for bug 1254238

Reviewed: https://review.openstack.org/97496
Committed: https://git.openstack.org/cgit/openstack/tempest/commit/?id=3c7481f707263073ee72d84b17b0d1e407382116
Submitter: Jenkins
Branch: master

commit 3c7481f707263073ee72d84b17b0d1e407382116
Author: Ken'ichi Ohmichi <email address hidden>
Date: Tue Jun 3 22:19:02 2014 +0900

    Wait for server activations for the updated servers

    In test_list_servers_by_changes_since, Tempest tries to get a server
    list with changes-since parameter. The test expects we can get all
    servers with the parameter, but sometimes we could not get it and the
    gate tests failed.
    On "create a server" API Nova creates a DB record of the server as
    the first step, then updates the record by each step(scheduling,
    networking, etc.) during the server creation. If the test runs just
    after the DB record creation, the record is not updated and "get a
    server list" API with changes-since parameter does not contain the
    server. As the result, the test fails.

    This patch makes the test wait for server activations to avoid the
    non-updated servers.

    Change-Id: I380ae2030da794c4f8fcfd6347f9cbe7f75b5c28
    Closes-Bug: #1254238