Comment 3 for bug 1616974

Reviewed: https://review.openstack.org/402922
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=73603d524814d5e417dad4c40d3667b703c58105
Submitter: Jenkins
Branch: master

commit 73603d524814d5e417dad4c40d3667b703c58105
Author: Gorka Eguileor <email address hidden>
Date: Fri Nov 25 14:26:23 2016 +0100

    Move service and cluster creation in test to utils

    In this patch we move service and cluster creation methods from the
    tests to the test utils file so they can be easily reused by other tests
    that need to create them.

    This change is required by the patch that fixes the replication freeze
    mechanism but wasn't included in that patch to facilitate the review by
    splitting the 2 different concepts: moving these convenience methods to
    test utils and fixing the freeze mechanism.

    Related-Bug: #1616974
    Change-Id: I7d8552f38e9495f72a5c1af61f4f57b3b4683157