For an example on how to stub out 'is_vdi_pv' see:
http://bazaar.launchpad.net/~hudson-openstack/nova/trunk/annotate/head:/nova/tests/xenapi/stubs.py#L110
and
http://bazaar.launchpad.net/~hudson-openstack/nova/trunk/view/head:/nova/tests/test_xenapi.py#L54
Hope this help!
For an example on how to stub out 'is_vdi_pv' see:
http:// bazaar. launchpad. net/~hudson- openstack/ nova/trunk/ annotate/ head:/nova/ tests/xenapi/ stubs.py# L110
and
http:// bazaar. launchpad. net/~hudson- openstack/ nova/trunk/ view/head: /nova/tests/ test_xenapi. py#L54
Hope this help!