Additional Notes
When should `PaymentGateway` be mocked?
Track: Java
Topic: Testing
Focus: Mocking with Mockito
Java: Mocking with Mockito
Answer
When unit testing order logic and you want to avoid real network side effects.
Mocking is appropriate at external boundaries. It lets you verify how `OrderService` reacts to success and failure without charging cards or depending on network availability.
Mocking is appropriate at external boundaries. It lets you verify how `OrderService` reacts to success and failure without charging cards or depending on network availability.
Topics: Java Mocking with Mockito Testing