October 8, 2025
Migration Guide: Moving from Static Fixtures to Stateful Mocks
Most teams start with static fixtures because they are fast to stand up. The problem is that static fixtures eventually stop matching the behavior you need to test.
The safest migration path is incremental. Pick the handful of integration flows that create the most churn, then replace one-off fixture files with scenario-aware responses and explicit state transitions.
- Identify the top flaky or highest-risk integration paths.
- Introduce scenario states for those paths instead of one default response.
- Add latency and failure profiles once state handling is stable.
This keeps adoption manageable while improving test realism where it matters first.