How would you approach unit testing for a microservice?

Short answer: Unit testing in microservices focuses on testing the smallest components (e.g., methods, functions, or classes) in isolation without dependencies on other services or external systems. Approach:

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.