L3DvrTestCase.test_dvr_gateway_host_binding_is_set: MismatchError: u'host0' != u'standby'

[IWAMOTO Toshihiro]

L3DvrTestCase.test_dvr_gateway_host_binding_is_set is recently added in commit abe99383.
It seems to fail often with MismatchError: u'host0' != u'standby'.

Example:
http://logs.openstack.org/63/470063/5/check/gate-neutron-dsvm-functional-ubuntu-xenial/4063789/testr_results.html.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/474466

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/474467

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/474466
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=803f7b85448bbe7fbff8e245913eb3031f5abdc6
Submitter: Jenkins
Branch: master

commit 803f7b85448bbe7fbff8e245913eb3031f5abdc6
Author: Kevin Benton <email address hidden>
Date: Thu Jun 15 00:22:19 2017 -0700

    Fix test_dvr_gateway_host_binding_is_set

    Router scheduling was happening before the schedule call
    so sometimes the router was being scheduled to a different
    host than the test was expecting.

    This fixes it by explicitly setting the router to not be HA
    and calls schedule before adding interfaces that would trigger
    scheduling.

    Closes-Bug: #1698058
    Change-Id: I6c6319f1da72546a9d21af198daf9a2a67e6dec8

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 11.0.0.0b3 development milestone.