Comment 2 for bug 1713082

Reviewed: https://review.openstack.org/498055
Committed: https://git.openstack.org/cgit/openstack/python-cinderclient/commit/?id=aab7a587b6a10a964ca79d7e81a4563a143fcf12
Submitter: Jenkins
Branch: master

commit aab7a587b6a10a964ca79d7e81a4563a143fcf12
Author: Steve Noyes <email address hidden>
Date: Fri Aug 25 14:23:18 2017 -0400

    Fix attachment_id returned by create and show volume

    The attachment_ids in the volume info returned by show volume
    were incorrect. It was showing the volume_id, not the actual
    attachment_id. This fix changes the attachment_ids returned by show
    volume to correctly reflect the attachment_id.

    Also, added a unit test for this, and added an attachment_id
    to the fake volume so that other tests wouldn't now fail.

    Closes-Bug: #1713082
    Change-Id: I9ec36af5dd460d03d786aeeb3cc36a869c19ff62