Allow None on Renault binary sensors (#65997)

* Enable None on renault binary sensors

* Adjust tests

Co-authored-by: epenet <epenet@users.noreply.github.com>

homeassistant/components/renault/binary_sensor.py

@@ -64,10 +64,9 @@ class RenaultBinarySensor(
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary sensor is on."""
-        return (
-            self._get_data_attr(self.entity_description.on_key)
-            == self.entity_description.on_value
-        )
+        if (data := self._get_data_attr(self.entity_description.on_key)) is None:
+            return None
+        return data == self.entity_description.on_value
 
 
 BINARY_SENSOR_TYPES: tuple[RenaultBinarySensorEntityDescription, ...] = (

tests/components/renault/test_binary_sensor.py

@@ -4,7 +4,7 @@
 import pytest
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import STATE_OFF, Platform
+from homeassistant.const import STATE_UNKNOWN, Platform
 from homeassistant.core import HomeAssistant
 
 from . import (
@@ -63,7 +63,7 @@ async def test_binary_sensor_empty(
 
     expected_entities = mock_vehicle[Platform.BINARY_SENSOR]
     assert len(entity_registry.entities) == len(expected_entities)
-    check_entities_no_data(hass, entity_registry, expected_entities, STATE_OFF)
+    check_entities_no_data(hass, entity_registry, expected_entities, STATE_UNKNOWN)
 
 
 @pytest.mark.usefixtures("fixtures_with_invalid_upstream_exception")