Fix test-requirements.txt

mock >= 1.0 changed the behavior for iterable sideeffects. Any
exceptions in an iterable side_effect will now be raised instead of
returned.

With mock < 1.0 tests are failing, because test for the
internal client (TestSimpleClient.test_get_with_retries) use an
iterable sideeffect that raise an URLError on the first request
and pass on the second request.

Change-Id: I568b68c33ff599d7a4f590e2a0eb8caeee4b4d4e
Bring Object Auditor Coverage To 99%

Previously at 87% with 20 missing 11 partial, this additional
test code brings it to 99% 0 missing and 3 partial.  Noticed
some easy places to add coverage while working on the
Storage Policy branch.

Change-Id: I49b5b4db3341416fce1ef42811732c16d3265522
Merge "Bring Object Auditor Coverage To 99%"