# test Host-based unit tests for business logic that doesn't need real hardware, per the testing philosophy in `AGENTS.md`: "Everything that can be tested on a desktop should be." Primary candidates once they have real code: `components/sensors`, `components/profiles`, and the non-hardware parts of `components/lua_runtime` (Lua sandboxing/API surface, not GPIO access). ESP-IDF supports building against its `linux` target (`idf.py --preview set-target linux`) to run component unit tests on the host without a board. No test scaffolding is wired up yet since there's no logic to test.