toolTests: change mock objects creation.

Change-Id: I7be6aeb3aef494fbcaf7f8b40f43d823ec675dc5
Signed-off-by: Mooli Tayer <mtayer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/34043
Reviewed-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>