From d90caf3e86e9e0f61707393d2c62174703c40cac Mon Sep 17 00:00:00 2001
From: Marcel van der Veldt <m.vanderveldt@outlook.com>
Date: Wed, 18 Sep 2024 21:23:05 +0200
Subject: [PATCH] Remove default transition in Matter light platform (#126220)

* Remove default transition in Matter light platform

* adjust test
---
 homeassistant/components/matter/light.py | 3 +--
 tests/components/matter/test_light.py    | 8 ++++----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/homeassistant/components/matter/light.py b/homeassistant/components/matter/light.py
index d334979b7c8..471e776d6be 100644
--- a/homeassistant/components/matter/light.py
+++ b/homeassistant/components/matter/light.py
@@ -41,7 +41,6 @@ COLOR_MODE_MAP = {
     clusters.ColorControl.Enums.ColorMode.kCurrentXAndCurrentY: ColorMode.XY,
     clusters.ColorControl.Enums.ColorMode.kColorTemperature: ColorMode.COLOR_TEMP,
 }
-DEFAULT_TRANSITION = 0.2
 
 # there's a bug in (at least) Espressif's implementation of light transitions
 # on devices based on Matter 1.0. Mark potential devices with this issue.
@@ -287,7 +286,7 @@ class MatterLight(MatterEntity, LightEntity):
         xy_color = kwargs.get(ATTR_XY_COLOR)
         color_temp = kwargs.get(ATTR_COLOR_TEMP)
         brightness = kwargs.get(ATTR_BRIGHTNESS)
-        transition = kwargs.get(ATTR_TRANSITION, DEFAULT_TRANSITION)
+        transition = kwargs.get(ATTR_TRANSITION, 0)
         if self._transitions_disabled:
             transition = 0
 
diff --git a/tests/components/matter/test_light.py b/tests/components/matter/test_light.py
index 4fd73b6457b..14a3a6ca97e 100644
--- a/tests/components/matter/test_light.py
+++ b/tests/components/matter/test_light.py
@@ -159,7 +159,7 @@ async def test_dimmable_light(
         endpoint_id=1,
         command=clusters.LevelControl.Commands.MoveToLevelWithOnOff(
             level=128,
-            transitionTime=2,
+            transitionTime=0,
         ),
     )
     matter_client.send_device_command.reset_mock()
@@ -237,7 +237,7 @@ async def test_color_temperature_light(
                 endpoint_id=1,
                 command=clusters.ColorControl.Commands.MoveToColorTemperature(
                     colorTemperatureMireds=300,
-                    transitionTime=2,
+                    transitionTime=0,
                     optionsMask=1,
                     optionsOverride=1,
                 ),
@@ -348,7 +348,7 @@ async def test_extended_color_light(
                 command=clusters.ColorControl.Commands.MoveToColor(
                     colorX=0.5 * 65536,
                     colorY=0.5 * 65536,
-                    transitionTime=2,
+                    transitionTime=0,
                     optionsMask=1,
                     optionsOverride=1,
                 ),
@@ -413,7 +413,7 @@ async def test_extended_color_light(
                 command=clusters.ColorControl.Commands.MoveToHueAndSaturation(
                     hue=167,
                     saturation=254,
-                    transitionTime=2,
+                    transitionTime=0,
                     optionsMask=1,
                     optionsOverride=1,
                 ),