আপনি ডাটাবেসের সাথে যোগাযোগ করে এমন কোড কীভাবে পরীক্ষা করেন?

Database-interacting code needs testing, but databases bring challenges:
  → real DB → realistic but SLOWER; needs SETUP and CLEANUP (state between tests)
  → shared state → tests can interfere (order dependence, flakiness)
  → mocking the DB → fast but may not catch real query/integration bugs
→ Choose an approach balancing realism, speed, and isolation.