Add state_class to Nuki battery sensor (#159756)

homeassistant/components/nuki/sensor.py

@@ -4,7 +4,11 @@ from __future__ import annotations
 
 from pynuki.device import NukiDevice
 
-from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
+from homeassistant.components.sensor import (
+    SensorDeviceClass,
+    SensorEntity,
+    SensorStateClass,
+)
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import PERCENTAGE, EntityCategory
 from homeassistant.core import HomeAssistant
@@ -34,6 +38,7 @@ class NukiBatterySensor(NukiEntity[NukiDevice], SensorEntity):
     _attr_has_entity_name = True
     _attr_native_unit_of_measurement = PERCENTAGE
     _attr_device_class = SensorDeviceClass.BATTERY
+    _attr_state_class = SensorStateClass.MEASUREMENT
     _attr_entity_category = EntityCategory.DIAGNOSTIC
 
     @property

tests/components/nuki/snapshots/test_sensor.ambr

@@ -4,7 +4,9 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -39,6 +41,7 @@
     'attributes': ReadOnlyDict({
       'device_class': 'battery',
       'friendly_name': 'Home Battery',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
       'unit_of_measurement': '%',
     }),
     'context': <ANY>,