[emontx] Use total state class for energy sensors (#20128)

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

esphome/components/emontx/sensor/__init__.py

@@ -16,6 +16,7 @@ from esphome.const import (
     DEVICE_CLASS_TEMPERATURE,
     DEVICE_CLASS_VOLTAGE,
     STATE_CLASS_MEASUREMENT,
+    STATE_CLASS_TOTAL,
     STATE_CLASS_TOTAL_INCREASING,
     UNIT_AMPERE,
     UNIT_CELSIUS,
@@ -70,7 +71,7 @@ SENSOR_CONFIGS = {
     "E": {
         CONF_UNIT_OF_MEASUREMENT: UNIT_WATT_HOURS,
         CONF_DEVICE_CLASS: DEVICE_CLASS_ENERGY,
-        CONF_STATE_CLASS: STATE_CLASS_TOTAL_INCREASING,
+        CONF_STATE_CLASS: STATE_CLASS_TOTAL,
         CONF_ACCURACY_DECIMALS: 0,
     },
     "V": {

tests/component_tests/emontx/test_sensor_defaults.py

@@ -18,6 +18,7 @@ from esphome.const import (
     DEVICE_CLASS_TEMPERATURE,
     DEVICE_CLASS_VOLTAGE,
     STATE_CLASS_MEASUREMENT,
+    STATE_CLASS_TOTAL,
     STATE_CLASS_TOTAL_INCREASING,
     UNIT_AMPERE,
     UNIT_CELSIUS,
@@ -42,14 +43,12 @@ def _resolve_via_config_schema(tag: str) -> dict:
 def test_config_schema_applies_tag_default_state_class():
     """If sensor_schema(state_class=...) is reintroduced, the schema-level
     default wins over apply_tag_defaults' per-prefix value, and E1 would
-    resolve to measurement instead of total_increasing. Driving the real
+    resolve to measurement instead of total. Driving the real
     CONFIG_SCHEMA (not just apply_tag_defaults) catches that, since
     sensor_schema() runs before apply_tag_defaults in the cv.All() chain.
     """
     result = _resolve_via_config_schema("E1")
-    assert result[CONF_STATE_CLASS] == sensor.validate_state_class(
-        STATE_CLASS_TOTAL_INCREASING
-    )
+    assert result[CONF_STATE_CLASS] == sensor.validate_state_class(STATE_CLASS_TOTAL)
 
 
 def test_config_schema_applies_tag_default_accuracy_decimals():
@@ -70,8 +69,8 @@ def _make_config(tag: str) -> dict:
     ("tag", "expected_state_class", "expected_decimals"),
     [
         # Known numeric-index prefixes
-        ("E1", STATE_CLASS_TOTAL_INCREASING, 0),
-        ("E12", STATE_CLASS_TOTAL_INCREASING, 0),
+        ("E1", STATE_CLASS_TOTAL, 0),
+        ("E12", STATE_CLASS_TOTAL, 0),
         ("P1", STATE_CLASS_MEASUREMENT, 0),
         ("V1", STATE_CLASS_MEASUREMENT, 2),
         ("I1", STATE_CLASS_MEASUREMENT, 2),

tests/components/emontx/validate.esp32-idf.yaml

@@ -8,7 +8,7 @@ packages:
 # exercised, not the user-override path.
 
 sensor:
-  # Energy sensor (E prefix): expects state_class=total_increasing, unit=Wh,
+  # Energy sensor (E prefix): expects state_class=total, unit=Wh,
   # device_class=energy, accuracy_decimals=0
   - platform: emontx
     tag_name: E1