March 3, 2026

How We Use Scenario Switching to Keep Mocks Honest

Real APIs do not stay in one state. Your mocks should not either.

Scenario switching exists for one reason: your test environment should reflect changing application conditions, not static happy-path responses. That means response bodies, latency, and even failure semantics can change as a workflow progresses.

Why this matters

• Frontend state handling gets exercised under real transitions.
• Retry and failure paths stop being skipped during local development.
• Integration confidence improves because mocks behave like systems, not screenshots.

Practical pattern

Define states such as initial, in_progress, degraded, and recovered, then map responses by scenario instead of relying on one static fixture.

Result

You get test flows that look closer to production behavior, with less drift between local development and integration environments.