HA Test Harness
Use when adding tests for a custom integration.
Quick start
- Unit test the coordinator (success, cached fallback, error paths, option changes).
- Validate register maps and expected entities (keys, tiers, categories).
- Test entity properties (state_class/device_class/units) and translation_key wiring.
- Write-path tests: encoding, device_id usage, no immediate refresh contention.
References
- references/coordinator-tests.md
- references/entity-tests.md
- references/write-path-tests.md
- references/registry-stability.md
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