Integration test test_image_register_unregister failing gate

[Serhii Vasheka]

Following test is failing on gate.

Traceback (most recent call last):
File "/opt/stack/new/horizon/openstack_dashboard/test/integration_tests/tests/test_sahara_image_registry.py", line 34, in test_image_register_unregister "Image was not registered.")
File "/opt/stack/new/horizon/.tox/py27integration/local/lib/python2.7/site-packages/unittest2/case.py", line 678, in assertTrue
raise self.failureException(msg)
AssertionError: False is not true : Image was not registered.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/195663

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/195663
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=8ed6a85b85724a3838bd1fd487346e9a966cf5a6
Submitter: Jenkins
Branch: stable/kilo

commit 8ed6a85b85724a3838bd1fd487346e9a966cf5a6
Author: Luigi Toscano <email address hidden>
Date: Fri Jun 19 18:15:28 2015 +0200

    Wait until the image is registered in Sahara image test

    The tests consistently fails, probably because the availability
    of the image in the table is checked too soon. Add a bit of delay
    with a new wait method.

    Change-Id: I9e39c35fb67455b4e4f3c2b12265b8540420ad01
    Closes-Bug: #1466744
    (cherry picked from commit 86d2d4a11be0b5a87e8464e45114c41d934be690)