Fix light color mode in netatmo (#108759)

homeassistant/components/netatmo/light.py

@@ -64,7 +64,9 @@ async def async_setup_entry(
 class NetatmoCameraLight(NetatmoBaseEntity, LightEntity):
     """Representation of a Netatmo Presence camera light."""
 
+    _attr_color_mode = ColorMode.ONOFF
     _attr_has_entity_name = True
+    _attr_supported_color_modes = {ColorMode.ONOFF}
 
     def __init__(
         self,
@@ -170,10 +172,11 @@ class NetatmoLight(NetatmoBaseEntity, LightEntity):
         self._attr_brightness = 0
         self._attr_unique_id = f"{self._id}-light"
 
-        self._attr_supported_color_modes: set[str] = set()
-
-        if not self._attr_supported_color_modes and self._dimmer.brightness is not None:
-            self._attr_supported_color_modes.add(ColorMode.BRIGHTNESS)
+        if self._dimmer.brightness is not None:
+            self._attr_color_mode = ColorMode.BRIGHTNESS
+        else:
+            self._attr_color_mode = ColorMode.ONOFF
+        self._attr_supported_color_modes = {self._attr_color_mode}
 
         self._signal_name = f"{HOME}-{self._home_id}"
         self._publishers.extend(

tests/components/netatmo/snapshots/test_light.ambr

@@ -6,6 +6,7 @@
     'area_id': None,
     'capabilities': dict({
       'supported_color_modes': list([
+        <ColorMode.ONOFF: 'onoff'>,
       ]),
     }),
     'config_entry_id': <ANY>,
@@ -40,6 +41,7 @@
       'color_mode': None,
       'friendly_name': 'Bathroom light',
       'supported_color_modes': list([
+        <ColorMode.ONOFF: 'onoff'>,
       ]),
       'supported_features': <LightEntityFeature: 0>,
     }),