FUP: Unit tests for https://review.openstack.org/636970
FUP: Unit tests for https://review.openstack.org/636970

I forgot to add unit tests to the original change.
This patch adds the missing unit tests.

Change-Id: If281f9a8c33864fa18a3b8a8de854816f5773efe
Related-Bug: #1578989
Related-Change: https://review.openstack.org/636970
See-Also: https://review.openstack.org/502306 (nova spec)
See-Also: https://review.openstack.org/508149 (neutron spec)

mahak/neutron,openstack/neutron,openstack/neutron,openstack/neutron,mahak/neutron,mahak/neutron