This will 'time travel', i.e. change the inserted_at and update_at
fields of the object in question. This is used to backdate things
were we used sleeping before to ensure time differences.
In general, tests that match these criteria can be made async:
- Doesn't use real Cachex.
- Doesn't write to the Config / Application Environment.
- Uses Mock. Using Mox is fine.
- Uses the streamer.
Sean King