=== CONTOH PENGGUNAAN SAFE TESTING METHODS ===

1. Testing Database::testInsert():
-----------------------------------
✅ Test insert successful (rolled back)
✅ User not found (rollback successful)

2. Testing Database::testUpdate():
-----------------------------------
✅ Test update successful (rolled back)
Original password still intact: ✅ Yes

3. Testing Complex Transaction:
-------------------------------
✅ Complex transaction completed:
   - Location insert: Success
   - Latest update: Success
   - Test location exists: ✅ No (rollback successful)

=== SEMUA TEST SELESAI - DATABASE TIDAK BERUBAH ===