FakeLogger gets better log level handling
Parameterize logger on some daemons which were previously
unparameterized and try and use the interface in tests.
FakeRing use more real code
The existing FakeRing mock's implementation bit me on some pretty subtle
character encoding issue by-passing the hash_path code that is normally
part of get_part_nodes. This change tries to exercise more of the real
ring code paths when it makes sense and provide a better Fake for use in
testing.
Add write_fake_ring helper to test.unit for when you need a real ring.
DocImpact
Implements: blueprint storage-policies
Change-Id: Id2e3740b1dd569050f4e083617e7dd6a4249027e
7624b198cf