neutron.tests.functional.agent.linux.test_ovsdb_monitor.TestSimpleInterfaceMonitor.test_get_events reads output sometimes too early

[Jakub Libosvar]

The test expects that stdout buffers are populated right after ovsdb-monitor async process is spawned. Sometimes get_events() is called before ovsdb output is read that causes following failure:

http://logs.openstack.org/15/316615/1/check/gate-neutron-dsvm-functional/c3be6f8/testr_results.html.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/318898

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/318898
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=de390cdce60f7859f81328a0888df34c47d51d49
Submitter: Jenkins
Branch: master

commit de390cdce60f7859f81328a0888df34c47d51d49
Author: Jakub Libosvar <email address hidden>
Date: Thu May 19 21:25:10 2016 +0200

    functional: Fix ovsdb-monitor waiting for first events

    In case ovsdb-monitor is started but hasn't processed output from ovsdb
    then stdout buffers are not populated with data yet. This patch waits
    for new events that can be buffer after get_events() is called.

    Closes-Bug: 1583763
    Change-Id: I4f281770844dd262d6ad25bec4b942af36445b18

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/neutron 9.0.0.0b2 development milestone.