Fixes bug 1022575
Making change to tests/*py to pass pep8 tests.
pep8 tests started failing following
39b20acc933cb0fdf73075ddb9a9d82665b84b23 update pep8 to 1.3.3
04df79b64e5f2296df03579700535774e158f623 include tests dir in pep8 tests
Change-Id: I2d7dec0a87f1ae9b5f828d7f321b65bf8c06a421
The goal is to move the responsibility of reference checks away from
controllers and into the underlying managers & drivers, which can
handle the task with equal or greater efficiency.
- Tenant references from create_user/update_user are NOT tested
due to inconsistencies between backends
- Additional test coverage improvements
Also fixes bug 999209, bug 999608, bug 1006029, bug 1006055, bug 1006287,
bug 1006334, and bug 1006344.
Change-Id: I7de592e7dd4518038436b9a9fdaab559b00a0537
