Testing interview questions
Scenario-style prompts with sample answer outlines. Focus is on how you would design and reason in real codebases.
- 01Testing strategy and tradeoffsHow do you decide what to test at the unit, integration, and UI level in a large iOS app?
- 02Designing for testabilityYou inherit a feature that's hard to test. How do you refactor or redesign it to make it testable without over-engineering?
- 03Testing asynchronous and concurrent codeHow do you reliably test async/await code and concurrency-heavy features to avoid flakiness and race conditions?
- 04Maintaining a healthy test suiteAs a codebase grows, test suites often become slow and brittle. How do you keep tests fast, reliable, and valuable over time?
- 05Balancing speed vs confidenceHow do you balance the need for fast iteration with the need for strong test coverage and confidence in releases?
