Fix Hue temperature sensor crash on None value (#184148)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

homeassistant/components/hue/v2/sensor.py

@@ -149,8 +149,10 @@ class HueTemperatureSensor(HueSensorBase):
 
     @property
     @override
-    def native_value(self) -> float:
+    def native_value(self) -> float | None:
         """Return the value reported by the sensor."""
+        if self.resource.temperature.value is None:
+            return None
         return round(self.resource.temperature.value, 1)
 
 

tests/components/hue/test_sensor_v2.py

@@ -187,6 +187,24 @@ async def test_grouped_light_level_sensor(
     )  # Light level 30000 translates to 10^((30000-1)/10000) ≈ 999 lux
 
 
+async def test_temperature_sensor_none_value(
+    hass: HomeAssistant, mock_bridge_v2: Mock, v2_resources_test_data: JsonArrayType
+) -> None:
+    """Test that temperature sensor handles None value without crashing."""
+    for resource in v2_resources_test_data:
+        if resource.get("id") == "66466e14-d2fa-4b96-b2a0-e10de9cd8b8b":
+            resource["temperature"]["temperature"] = None
+            resource["temperature"]["temperature_valid"] = False
+            break
+
+    await mock_bridge_v2.api.load_test_data(v2_resources_test_data)
+    await setup_platform(hass, mock_bridge_v2, Platform.SENSOR)
+
+    sensor = hass.states.get("sensor.hue_motion_sensor_temperature")
+    assert sensor is not None
+    assert sensor.state == STATE_UNKNOWN
+
+
 async def test_light_level_sensor_none_value(
     hass: HomeAssistant, mock_bridge_v2: Mock, v2_resources_test_data: JsonArrayType
 ) -> None: