makeStoreWithFakes(t *testing.T)
: (fm *fakeManifest, p tablePersister, q MemoryQuotaProvider, store *NomsBlockStore)
interloperWrite(fm *fakeManifest, p tablePersister, rootChunk []byte, chunks ...[]byte)
: (newRoot hash.Hash, persisted [][]byte, err error)
compactSourcesToBuffer(sources chunkSources)
: (name addr, data []byte, chunkCount uint32, err error)