Limit zwave_js meter sensor last reset (#53921)

homeassistant/components/zwave_js/sensor.py

@@ -248,20 +248,20 @@ class ZWaveMeterSensor(ZWaveNumericSensor, RestoreEntity):
 
         # Entity class attributes
         self._attr_state_class = STATE_CLASS_MEASUREMENT
-        self._attr_last_reset = dt.utc_from_timestamp(0)
+        if self.device_class == DEVICE_CLASS_ENERGY:
+            self._attr_last_reset = dt.utc_from_timestamp(0)
 
     @callback
     def async_update_last_reset(
         self, node: ZwaveNode, endpoint: int, meter_type: int | None
     ) -> None:
         """Update last reset."""
-        # If the signal is not for this node or is for a different endpoint, ignore it
-        if self.info.node != node or self.info.primary_value.endpoint != endpoint:
-            return
-        # If a meter type was specified and doesn't match this entity's meter type,
-        # ignore it
+        # If the signal is not for this node or is for a different endpoint,
+        # or a meter type was specified and doesn't match this entity's meter type:
         if (
-            meter_type is not None
+            self.info.node != node
+            or self.info.primary_value.endpoint != endpoint
+            or meter_type is not None
             and self.info.primary_value.metadata.cc_specific.get("meterType")
             != meter_type
         ):
@@ -274,6 +274,10 @@ class ZWaveMeterSensor(ZWaveNumericSensor, RestoreEntity):
         """Call when entity is added."""
         await super().async_added_to_hass()
 
+        # If the meter is not an accumulating meter type, do not reset.
+        if self.device_class != DEVICE_CLASS_ENERGY:
+            return
+
         # Restore the last reset time from stored state
         restored_state = await self.async_get_last_state()
         if restored_state and ATTR_LAST_RESET in restored_state.attributes:
@@ -310,7 +314,7 @@ class ZWaveMeterSensor(ZWaveNumericSensor, RestoreEntity):
             primary_value.endpoint,
             options,
         )
-        self._attr_last_reset = dt.utcnow()
+
         # Notify meters that may have been reset
         async_dispatcher_send(
             self.hass,

tests/components/zwave_js/common.py

@@ -33,7 +33,8 @@ ID_LOCK_CONFIG_PARAMETER_SENSOR = (
     "sensor.z_wave_module_for_id_lock_150_and_101_config_parameter_door_lock_mode"
 )
 ZEN_31_ENTITY = "light.kitchen_under_cabinet_lights"
-METER_SENSOR = "sensor.smart_switch_6_electric_consumed_v"
+METER_ENERGY_SENSOR = "sensor.smart_switch_6_electric_consumed_kwh"
+METER_VOLTAGE_SENSOR = "sensor.smart_switch_6_electric_consumed_v"
 
 DATETIME_ZERO = datetime(1970, 1, 1, 0, 0, 0, tzinfo=timezone.utc)
 DATETIME_LAST_RESET = datetime(2020, 1, 1, 0, 0, 0, tzinfo=timezone.utc)

tests/components/zwave_js/test_sensor.py

@@ -36,7 +36,8 @@ from .common import (
     HUMIDITY_SENSOR,
     ID_LOCK_CONFIG_PARAMETER_SENSOR,
     INDICATOR_SENSOR,
-    METER_SENSOR,
+    METER_ENERGY_SENSOR,
+    METER_VOLTAGE_SENSOR,
     NOTIFICATION_MOTION_SENSOR,
     POWER_SENSOR,
     VOLTAGE_SENSOR,
@@ -202,9 +203,13 @@ async def test_reset_meter(
     client.async_send_command.return_value = {}
     client.async_send_command_no_wait.return_value = {}
 
+    # Validate that non accumulating meter does not have a last reset attribute
+
+    assert ATTR_LAST_RESET not in hass.states.get(METER_VOLTAGE_SENSOR).attributes
+
     # Validate that the sensor last reset is starting from nothing
     assert (
-        hass.states.get(METER_SENSOR).attributes[ATTR_LAST_RESET]
+        hass.states.get(METER_ENERGY_SENSOR).attributes[ATTR_LAST_RESET]
         == DATETIME_ZERO.isoformat()
     )
 
@@ -215,13 +220,13 @@ async def test_reset_meter(
             DOMAIN,
             SERVICE_RESET_METER,
             {
-                ATTR_ENTITY_ID: METER_SENSOR,
+                ATTR_ENTITY_ID: METER_ENERGY_SENSOR,
             },
             blocking=True,
         )
 
     assert (
-        hass.states.get(METER_SENSOR).attributes[ATTR_LAST_RESET]
+        hass.states.get(METER_ENERGY_SENSOR).attributes[ATTR_LAST_RESET]
         == DATETIME_LAST_RESET.isoformat()
     )
 
@@ -232,6 +237,10 @@ async def test_reset_meter(
     assert args["endpoint"] == 0
     assert args["args"] == []
 
+    # Validate that non accumulating meter does not have a last reset attribute
+
+    assert ATTR_LAST_RESET not in hass.states.get(METER_VOLTAGE_SENSOR).attributes
+
     client.async_send_command_no_wait.reset_mock()
 
     # Test successful meter reset call with options
@@ -239,7 +248,7 @@ async def test_reset_meter(
         DOMAIN,
         SERVICE_RESET_METER,
         {
-            ATTR_ENTITY_ID: METER_SENSOR,
+            ATTR_ENTITY_ID: METER_ENERGY_SENSOR,
             ATTR_METER_TYPE: 1,
             ATTR_VALUE: 2,
         },
@@ -253,6 +262,10 @@ async def test_reset_meter(
     assert args["endpoint"] == 0
     assert args["args"] == [{"type": 1, "targetValue": 2}]
 
+    # Validate that non accumulating meter does not have a last reset attribute
+
+    assert ATTR_LAST_RESET not in hass.states.get(METER_VOLTAGE_SENSOR).attributes
+
     client.async_send_command_no_wait.reset_mock()
 
 
@@ -265,6 +278,10 @@ async def test_restore_last_reset(
 ):
     """Test restoring last_reset on setup."""
     assert (
-        hass.states.get(METER_SENSOR).attributes[ATTR_LAST_RESET]
+        hass.states.get(METER_ENERGY_SENSOR).attributes[ATTR_LAST_RESET]
         == DATETIME_LAST_RESET.isoformat()
     )
+
+    # Validate that non accumulating meter does not have a last reset attribute
+
+    assert ATTR_LAST_RESET not in hass.states.get(METER_VOLTAGE_SENSOR).attributes