async_send_command handed write_fn/validate_fn the raw cache snapshot
(real, on-the-wire hrefs), not a subdevice-scoped view. Every other
consumer of a full resources dict (exists_fn, rep_fn, is_legacy_board,
...) reads through coordinator.canonical_resources() specifically to
avoid this; write_fn/validate_fn didn't, so on a composite AC (issue
#177) _temperature_step's resources.get(HREF_TEMP_CONTROL) saw the
master's /temperature/control/vs/0 instead of the subdevice's own
/temperature/control/vs/1, silently rounding a subdevice's 0.5-degree
write to a whole degree. The remote-control gate stays on the raw
snapshot -- /remotectrl/* is a shared, MAIN-only resource a
subdevice's owned-hrefs-only canonical view would drop entirely.
climate.py's target_temperature_step duplicated this same
read-in-order logic; pointed it at airconditioner._temperature_step
so the read and write paths can't drift again.
Also, from the same review:
- _quantize_temperature rejects non-finite floats (nan/inf survive
float() but raise out of round()/division, escaping write_fn's
documented None-on-bad-payload contract).
- Deduplicated the quantize-and-check block shared by the
temperature_ocf/temperature branches of _climate_write.
- Added the /temperatures/vs/0 items[]-fallback test that was
previously unreachable (every increment-carrying fixture also has
/temperature/control/vs/0, which _temperature_step checks first).
- Added a coordinator-level test seeding an indexed subdevice with its
own step, distinct from the master's, covering the fix above.
- The Towels/Bedding regression test now checks all 7 locale catalogs,
not just English -- the bug is a code-mapping error, and
test_every_language_mirrors_the_english_catalog only checks key
topology, not values.
Marc Billow
676074b2f8