Open Stack

Hi,

> Another idea is to modify test that it will:
> 1. Check how many ports are in tenant,
> 2. Set quota to actual number of ports + 1 instead of hardcoded 1 as it is now,
> 3. Try to add 2 ports - exactly as it is now,
>
> I think that this should be still backend agnostic and should fix this problem.
>

Great idea! I've gave it a go and proposed it at
https://review.openstack.org/559758

Cheers,
Lucas