Other 路 Intern to senior
Testing questions come up for QA engineers and developers alike. Interviewers want to see that you can choose the right level of test for a risk, keep an automated suite fast and reliable, and explain why a test is worth its maintenance cost.
3 of 5 questions match
Clear filtersUnit tests check one small piece of code in isolation, integration tests check that several pieces work together (for example code plus a real database), and end-to-end tests drive the whole application the way a user would.
The test pyramid is a guideline to have many fast unit tests at the base, fewer integration tests in the middle and only a small number of slow end-to-end tests at the top, so the suite stays fast and reliable.
Mocking replaces a real dependency with a controllable fake so a test can run in isolation and check how the code interacts with it; use it for slow, non-deterministic or external dependencies, not for everything.