Updated openstack/openstack
Project: openstack/keystone  1c9798bf5cd177b1085c4f551e0f5c2f4a236c8d
null
refactor test_catalog

- Tests for "missing" attributes are actually testing with null values,
  not missing keys.
- Not being able to explicitly provide alternative URLs resulting in
  hacky workarounds that can be avoiding by simply exposing kwargs with
  reasonable defaults
- Several tests redundantly asserted the expected response status, which
  is already handled by the test framework

Change-Id: Icadb4927bcf03ca7e79fef1507e419a4932f32a9
Related-Bug: 1250765