Cron Actor Test Coverage

[vyzo]

Initial Coverage:

|| actors/cron/src/lib.rs: 23/28

Unit tests to migrate/check

cron $ go test -v ./... | grep PASS | sed 's/--- PASS:/- [ ]/g' | sed 's/ (.*)//g' | grep -v PASS

• TestConstructor
  • TestConstructor/construct_with_empty_entries
  • TestConstructor/construct_with_non-empty_entries
• TestEpochTick
  • TestEpochTick/epoch_tick_with_empty_entries
  • TestEpochTick/epoch_tick_with_non-empty_entries
  • TestEpochTick/built-in_entries

[lemmih]

All tests have been ported to rust (except TestEpochTick/built-in_entries which isn't valid anymore).