From e98d50f6d1e6012bcd4d0735f1476306851fc305 Mon Sep 17 00:00:00 2001
From: Erik Montnemery <erik@montnemery.com>
Date: Wed, 18 Aug 2021 16:58:13 +0200
Subject: [PATCH] Remove `last_reset` attribute and set state class to
 `total_increasing` for mysensors energy sensors (#54827)

---
 homeassistant/components/mysensors/sensor.py | 5 ++---
 tests/components/mysensors/test_sensor.py    | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/homeassistant/components/mysensors/sensor.py b/homeassistant/components/mysensors/sensor.py
index 68fdf2a21b2..94a9cde1df2 100644
--- a/homeassistant/components/mysensors/sensor.py
+++ b/homeassistant/components/mysensors/sensor.py
@@ -9,6 +9,7 @@ from homeassistant.components import mysensors
 from homeassistant.components.sensor import (
     DOMAIN,
     STATE_CLASS_MEASUREMENT,
+    STATE_CLASS_TOTAL_INCREASING,
     SensorEntity,
     SensorEntityDescription,
 )
@@ -42,7 +43,6 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.util.dt import utc_from_timestamp
 
 from .const import MYSENSORS_DISCOVERY, DiscoveryInfo
 from .helpers import on_unload
@@ -122,8 +122,7 @@ SENSORS: dict[str, SensorEntityDescription] = {
         key="V_KWH",
         native_unit_of_measurement=ENERGY_KILO_WATT_HOUR,
         device_class=DEVICE_CLASS_ENERGY,
-        state_class=STATE_CLASS_MEASUREMENT,
-        last_reset=utc_from_timestamp(0),
+        state_class=STATE_CLASS_TOTAL_INCREASING,
     ),
     "V_LIGHT_LEVEL": SensorEntityDescription(
         key="V_LIGHT_LEVEL",
diff --git a/tests/components/mysensors/test_sensor.py b/tests/components/mysensors/test_sensor.py
index 880226ced60..18d88a24206 100644
--- a/tests/components/mysensors/test_sensor.py
+++ b/tests/components/mysensors/test_sensor.py
@@ -10,6 +10,7 @@ from homeassistant.components.sensor import (
     ATTR_LAST_RESET,
     ATTR_STATE_CLASS,
     STATE_CLASS_MEASUREMENT,
+    STATE_CLASS_TOTAL_INCREASING,
 )
 from homeassistant.const import (
     ATTR_DEVICE_CLASS,
@@ -24,7 +25,6 @@ from homeassistant.const import (
     TEMP_FAHRENHEIT,
 )
 from homeassistant.core import HomeAssistant
-from homeassistant.util.dt import utc_from_timestamp
 from homeassistant.util.unit_system import IMPERIAL_SYSTEM, METRIC_SYSTEM, UnitSystem
 
 from tests.common import MockConfigEntry
@@ -92,8 +92,7 @@ async def test_energy_sensor(
     assert state.state == "18000"
     assert state.attributes[ATTR_DEVICE_CLASS] == DEVICE_CLASS_ENERGY
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == ENERGY_KILO_WATT_HOUR
-    assert state.attributes[ATTR_STATE_CLASS] == STATE_CLASS_MEASUREMENT
-    assert state.attributes[ATTR_LAST_RESET] == utc_from_timestamp(0).isoformat()
+    assert state.attributes[ATTR_STATE_CLASS] == STATE_CLASS_TOTAL_INCREASING
 
 
 async def test_sound_sensor(