fix: merge last_service_data across split calls to fix detect_non_ha_changes with separate_turn_on_commands (#1426)

* test: regression test — AL must not override manual brightness with separate_turn_on_commands

End-to-end scenario: user adjusts brightness via a directly-bound Zigbee
switch (e.g. IKEA RODRET).  No HA service call is made; ZHA reports the new
brightness via async_update_entity.  On the next adaptation interval AL must
detect the change and stop overriding the user's brightness.

The test verifies the user-visible symptom: after two adaptation cycles
following a simulated direct-Zigbee brightness change, the light's brightness
must still be the manually set value — not AL's own target.

NOTE: this test FAILS on the current code.  It is committed here to document
the bug before the fix is applied in the next commit.

* fix: merge last_service_data across split calls to fix detect_non_ha_changes with separate_turn_on_commands

When separate_turn_on_commands=True, each adaptation cycle makes two
light.turn_on calls (brightness, then color_temp).  Previously each call
overwrote last_service_data[light], so after the cycle only the color_temp
key remained.  _attributes_have_changed() then saw old_brightness=None and
silently skipped the brightness comparison, so a manually-set brightness was
never detected and AL kept overriding it.

Fix: merge instead of overwrite so all split-call attributes accumulate:

    self.manager.last_service_data[light] = {
        **self.manager.last_service_data.get(light, {}),
        **service_data,
    }

* test: add intermediate assertions to regression test

Two assertions were promised in the PR description but missing:
1. After the force-adapt, assert that last_service_data contains BOTH
   brightness AND color — directly proving the merge fix works.
2. After the first non-forced update, assert that BRIGHTNESS is in
   manual_control — proving detection fired, not just that the final
   state is right.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* refactor: remove spurious comments, trim test docstring and assertions

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor: strip verbose comments from test, trim assert messages

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* test: add message to bare assert

custom_components/adaptive_lighting/switch.py

@@ -1356,7 +1356,10 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
                 data.context.id,
             )
             light = service_data[ATTR_ENTITY_ID]
-            self.manager.last_service_data[light] = service_data
+            self.manager.last_service_data[light] = {
+                **self.manager.last_service_data.get(light, {}),
+                **service_data,
+            }
             await self.hass.services.async_call(
                 LIGHT_DOMAIN,
                 SERVICE_TURN_ON,

tests/test_switch.py

@@ -9,7 +9,7 @@ from collections import OrderedDict
 from copy import deepcopy
 from random import randint
 from typing import Any
-from unittest.mock import Mock, patch
+from unittest.mock import AsyncMock, Mock, patch
 
 import homeassistant.util.dt as dt_util
 import pytest
@@ -1696,7 +1696,7 @@ async def test_change_switch_settings_service(hass):
 
 async def test_cancellable_service_calls_task(hass):
     """Test the creation and execution of the task that wraps adaptation service calls."""
-    (light, *_) = await setup_lights(hass)
+    light, *_ = await setup_lights(hass)
     _, switch = await setup_switch(hass, {CONF_SEPARATE_TURN_ON_COMMANDS: True})
     context = switch.create_context("test")
 
@@ -2914,3 +2914,75 @@ async def test_adapt_only_on_bare_turn_on_respects_pause_changed_mode(hass, inte
         f"With take_over_control_mode=PAUSE_CHANGED and only brightness marked "
         f"as manually controlled, color_temp should still be adapted."
     )
+
+
+async def test_detect_non_ha_changes_with_separate_turn_on_commands(hass):
+    """Regression test for detect_non_ha_changes with separate_turn_on_commands.
+
+    With separate_turn_on_commands=True, each adaptation cycle makes two sequential
+    light.turn_on calls (brightness, then color). If the second call overwrites
+    last_service_data instead of merging, brightness is dropped — and
+    _attributes_have_changed silently skips the brightness comparison, so a direct
+    Zigbee brightness change is never detected as manual control.
+    """
+    switch, (light, *_) = await setup_lights_and_switch(
+        hass,
+        {
+            CONF_SEPARATE_TURN_ON_COMMANDS: True,
+            CONF_DETECT_NON_HA_CHANGES: True,
+            CONF_TAKE_OVER_CONTROL: True,
+        },
+    )
+
+    context = switch.create_context("test")
+
+    async def update(force: bool = False):
+        await switch._update_attrs_and_maybe_adapt_lights(
+            context=context,
+            force=force,
+            transition=0,
+        )
+        await hass.async_block_till_done()
+
+    await update(force=True)
+
+    last_sd = switch.manager.last_service_data.get(ENTITY_LIGHT_1)
+    assert last_sd is not None, "last_service_data not set after force adapt"
+    assert (
+        ATTR_BRIGHTNESS in last_sd
+    ), f"brightness missing from last_service_data after split calls: {last_sd}"
+    assert (
+        ATTR_COLOR_TEMP_KELVIN in last_sd or ATTR_RGB_COLOR in last_sd
+    ), f"color missing from last_service_data after split calls: {last_sd}"
+
+    al_brightness = light._brightness
+    switch.manager.manual_control[ENTITY_LIGHT_1] = LightControlAttributes.NONE
+
+    manual_brightness = (
+        al_brightness - 120 if al_brightness >= 120 else al_brightness + 120
+    )
+    light._brightness = manual_brightness
+
+    async def _flush_attr_state(hass, entity_id):
+        """Mimic a ZHA attribute report: write current hardware state to HA."""
+        light.async_write_ha_state()
+
+    with patch(
+        "homeassistant.components.adaptive_lighting.switch.async_update_entity",
+        new=AsyncMock(side_effect=_flush_attr_state),
+    ):
+        await update(force=False)
+
+        assert LightControlAttributes.BRIGHTNESS in switch.manager.manual_control.get(
+            ENTITY_LIGHT_1,
+            LightControlAttributes.NONE,
+        ), (
+            f"manual_control={switch.manager.manual_control.get(ENTITY_LIGHT_1)}, "
+            f"last_service_data={switch.manager.last_service_data.get(ENTITY_LIGHT_1)}"
+        )
+
+        await update(force=False)
+
+    assert (
+        light._brightness == manual_brightness
+    ), f"AL overrode manual brightness {manual_brightness} with {al_brightness}"