Comment 7 for bug 1186354

I patched my system with https://review.openstack.org/#/c/43822/ and tried running test_quotas_negative (where the negative security group/rule tests live now) with neutron in the backend and it still fails because nova isn't proxying the quota update API call to neutron, so the test still fails.

Either nova needs to change to proxy the quota update API calls to neutron (preferable) or Tempest needs to use the neutron client when faking out the quota from the compute test when using neutron in the backend (hacky, but it would get the limits API changes tested until the nova quota API is changed to proxy to neutron).