Add test suite — STT/TTS/wake-word boundaries with mock backends #6

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opened 2026-04-06 22:25:19 -07:00 by pyr0ball · 0 comments

pyr0ball commented

2026-04-06 22:25:19 -07:00

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Summary

Zero tests currently. Blocked on FastAPI migration (which makes the code testable with mock backends and dependency injection).

Once globals are replaced with injected instances, unit tests can mock STTBackend, TTSBackend, and WakeWordDetector protocols to test the HTTP layer independently of actual model inference.

Scope

HTTP endpoint tests (FastAPI TestClient)
Mock STT backend: returns fixed transcript
Mock TTS backend: returns empty bytes
Mock wake word: triggers callback programmatically
Integration test: audio upload → transcript → HA intent round trip (with mock HA)

References

cf-dev review finding: Priority 4
Depends on: FastAPI migration issue

## Summary Zero tests currently. Blocked on FastAPI migration (which makes the code testable with mock backends and dependency injection). Once globals are replaced with injected instances, unit tests can mock `STTBackend`, `TTSBackend`, and `WakeWordDetector` protocols to test the HTTP layer independently of actual model inference. ## Scope - HTTP endpoint tests (FastAPI TestClient) - Mock STT backend: returns fixed transcript - Mock TTS backend: returns empty bytes - Mock wake word: triggers callback programmatically - Integration test: audio upload → transcript → HA intent round trip (with mock HA) ## References - cf-dev review finding: Priority 4 - Depends on: FastAPI migration issue