test CommandPath

Change-Id: I0b53d5ce56551fea8c6ecf7801ca2de86334cf49
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/11165
Reviewed-by: Zhou Zheng Sheng <zhshzhou@linux.vnet.ibm.com>
Reviewed-by: Antoni Segura Puimedon <asegurap@redhat.com>