Currently we create Activity History records for Contributions and Event Registrations during a "test-drive". The resulting civicrm_contribution and participant records are flagged is_test = true. However, there is no way of telling that the corresponding activity history records are ALSO test transactions.
Add is_test flag to activity_history table and set true for all test-drive cases:
- contribution w/ membership signup
- event registration
Modify Activity Hx selector to display "(test)" in the Activity Type - e.g. "Donation (test)".