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fix: use quantization-aware comparison in skip_redundant_commands filter (#1513)

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* fix: use quantization-aware comparison in skip_redundant_commands filter

_remove_redundant_attributes() compared target values against light state
with exact equality, but many targets can never round-trip exactly through
a device with coarser resolution:

- brightness: HA's 0-255 scale vs the 0-99 Z-Wave Multilevel Switch scale
  leaves 156 of 255 targets that never converge (e.g. 230 -> 89 -> 229),
- color_temp_kelvin: the kelvin -> mired -> kelvin round trip leaves most
  kelvin targets off by up to ~21 K at 6500 K (e.g. 5500 -> 182 -> 5495).

Such attributes survived the filter and were re-sent every interval
forever, which on larger Z-Wave meshes is enough to jam the controller.

Compare brightness with a tolerance of 2 (the exact worst case of the
0-99 scale) and color temperature in mired space, where devices actually
quantize and where the comparison is exact at every kelvin value. Both
are far below the manual-control detection thresholds
(BRIGHTNESS_CHANGE = 25, COLOR_TEMP_CHANGE = 100), so they cannot mask a
genuine user change.

Fixes #1512

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017P2wLQYGQH6npY5op5CKVD

* fix: tolerate one mired to cover both floor- and round-based conversions

The previous exact mired equality assumed round-based kelvin<->mired
conversion, but HA core's color_temperature_kelvin_to_mired() and
color_temperature_mired_to_kelvin() both use math.floor, under which a
target like 5500 K comes back as 5524 K in a different rounded mired
bucket and would never be filtered. Flooring in the comparison instead
would merely flip the failure onto integrations that round.

Comparing with a tolerance of one mired converges for both conversion
schemes (verified by brute force over 1000-10000 K: zero stuck targets
under either pipeline) and can hide at most ~2 mireds, far below the
~5.5 mired just-noticeable difference for color temperature.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017P2wLQYGQH6npY5op5CKVD

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Bas Nijholt <bas@nijho.lt>
This commit is contained in:
Corey Peruffo 2026-09-06 02:53:06 -04:00 • committed by GitHub
commit 6d46b82313
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2 changed files with 117 additions and 8 deletions
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84
tests/test_adaptation_utils.py
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@ -95,14 +95,82 @@ async def test_split_service_call_data(input_data, expected_data_list):
),
(
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 10, ATTR_TRANSITION: 2},
State("light.test", STATE_ON, {ATTR_BRIGHTNESS: 11}),
State("light.test", STATE_ON, {ATTR_BRIGHTNESS: 13}),
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 10, ATTR_TRANSITION: 2},
),
(
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 230, ATTR_TRANSITION: 2},
State("light.test", STATE_ON, {ATTR_BRIGHTNESS: 229}),
{ATTR_ENTITY_ID: "light.test", ATTR_TRANSITION: 2},
),
(
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 230, ATTR_TRANSITION: 2},
State("light.test", STATE_ON, {ATTR_BRIGHTNESS: 227}),
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 230, ATTR_TRANSITION: 2},
),
(
{
ATTR_ENTITY_ID: "light.test",
ATTR_COLOR_TEMP_KELVIN: 5500,
ATTR_TRANSITION: 2,
},
State("light.test", STATE_ON, {ATTR_COLOR_TEMP_KELVIN: 5495}),
{ATTR_ENTITY_ID: "light.test", ATTR_TRANSITION: 2},
),
(
{
ATTR_ENTITY_ID: "light.test",
ATTR_COLOR_TEMP_KELVIN: 5500,
ATTR_TRANSITION: 2,
},
State("light.test", STATE_ON, {ATTR_COLOR_TEMP_KELVIN: 5524}),
{ATTR_ENTITY_ID: "light.test", ATTR_TRANSITION: 2},
),
(
{
ATTR_ENTITY_ID: "light.test",
ATTR_COLOR_TEMP_KELVIN: 6500,
ATTR_TRANSITION: 2,
},
State("light.test", STATE_ON, {ATTR_COLOR_TEMP_KELVIN: 6494}),
{ATTR_ENTITY_ID: "light.test", ATTR_TRANSITION: 2},
),
(
{
ATTR_ENTITY_ID: "light.test",
ATTR_COLOR_TEMP_KELVIN: 5500,
ATTR_TRANSITION: 2,
},
State("light.test", STATE_ON, {ATTR_COLOR_TEMP_KELVIN: 5400}),
{
ATTR_ENTITY_ID: "light.test",
ATTR_COLOR_TEMP_KELVIN: 5500,
ATTR_TRANSITION: 2,
},
),
(
{ATTR_ENTITY_ID: "light.test", ATTR_HS_COLOR: (30.0, 40.0)},
State("light.test", STATE_ON, {ATTR_HS_COLOR: (30.0, 40.0)}),
{ATTR_ENTITY_ID: "light.test"},
),
(
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 10},
State("light.test", STATE_ON, {ATTR_BRIGHTNESS: None}),
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 10},
),
],
ids=[
"pass all attributes on empty state",
"remove attributes whose values equal the state",
"keep attributes whose values differ from the state",
"remove brightness within quantization tolerance (0-99 device scale)",
"keep brightness outside quantization tolerance",
"remove color temp within one mired (round-converting integration)",
"remove color temp within one mired (floor-converting HA core helpers)",
"remove color temp within one mired (6500 K)",
"keep color temp more than one mired away",
"remove non-numeric attributes on exact equality",
"keep attribute when state value is None",
],
)
async def test_remove_redundant_attributes(
@ -167,18 +235,18 @@ async def test_has_relevant_service_data_attributes(
[],
),
(
[{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 11}],
[{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 15}],
True,
[{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 11}],
[{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 15}],
),
(
[
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 11},
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 15},
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 22},
],
True,
[
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 11},
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 15},
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 22},
],
),
@ -192,6 +260,11 @@ async def test_has_relevant_service_data_attributes(
{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 22},
],
),
(
[{ATTR_ENTITY_ID: "light.test", ATTR_BRIGHTNESS: 11}],
True,
[],
),
],
ids=[
"single item passed through without filtering",
@ -201,6 +274,7 @@ async def test_has_relevant_service_data_attributes(
"filter keeps item with relevant attribute that is different from state",
"filter keeps two items with relevant attributes that are different from state",
"filter removes item that equals state and keeps items that differs from state",
"filter removes item with relevant attribute within tolerance of the state",
],
)
async def test_create_service_call_data_iterator(