How do you run NUnit tests using the NUnit console runner?

Short answer: Download and use nunit3-console.exe from NUnit site: nunit3-console.exe YourTestAssembly.dll It runs all tests in the assembly and outputs results.

Real-world example (ShopNest)

ShopNest unit tests cover pricing and discount rules so a bad coupon change fails in CI before customers see it.

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.