Rewrite _cleanup_resize and finish_migration unit tests to use mock instead of mox
Rewrite _cleanup_resize and finish_migration unit tests to use mock instead of mox

TrivialFix

Change-Id: I7776c3ba981dbccb5a1fb964db24e04804ada4c3

alaski/nova,rajalokan/nova,vmturbo/nova,klmitch/nova,gooddata/openstack-nova,mikalstill/nova,alaski/nova,jianghuaw/nova,mikalstill/nova,bigswitch/nova,gooddata/openstack-nova,mahak/nova,gooddata/openstack-nova,Juniper/nova,bigswitch/nova,klmitch/nova,jianghuaw/nova,mahak/nova,hanlind/nova,rahulunair/nova,cloudbase/nova,rajalokan/nova,vmturbo/nova,cloudbase/nova,klmitch/nova,rajalokan/nova,openstack/nova,Juniper/nova,cloudbase/nova,hanlind/nova,sebrandon1/nova,jianghuaw/nova,Juniper/nova,phenoxim/nova,mikalstill/nova,openstack/nova,rajalokan/nova,rahulunair/nova,sebrandon1/nova,rahulunair/nova,klmitch/nova,phenoxim/nova,openstack/nova,mahak/nova,hanlind/nova,vmturbo/nova,Juniper/nova,vmturbo/nova,gooddata/openstack-nova,jianghuaw/nova,sebrandon1/nova