All crates above 75% test coverage

Arti as a whole is above 75% coverage (#80 (closed)). But we should make sure that every crate is above 75% coverage, if we can.

Currently we have less than 75% coverage in these crates:

  • arti (5%)
  • arti-client (33%)
  • tor-circmgr (66%)
  • tor-dirmgr (55 60 63%)
Edited by Nick Mathewson