Add Airzone Low Battery Binary Sensor (#69022)

* airzone: binary_sensor: add Low Battery

This binary sensor is only applicable for Radio Thermostats.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

* airzone: use BinarySensorDeviceClass

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

homeassistant/components/airzone/binary_sensor.py

@@ -7,6 +7,7 @@ from typing import Any, Final
 
 from aioairzone.const import (
     AZD_AIR_DEMAND,
+    AZD_BATTERY_LOW,
     AZD_ERRORS,
     AZD_FLOOR_DEMAND,
     AZD_NAME,
@@ -42,6 +43,11 @@ ZONE_BINARY_SENSOR_TYPES: Final[tuple[AirzoneBinarySensorEntityDescription, ...]
         key=AZD_AIR_DEMAND,
         name="Air Demand",
     ),
+    AirzoneBinarySensorEntityDescription(
+        device_class=BinarySensorDeviceClass.BATTERY,
+        key=AZD_BATTERY_LOW,
+        name="Battery Low",
+    ),
     AirzoneBinarySensorEntityDescription(
         device_class=BinarySensorDeviceClass.RUNNING,
         key=AZD_FLOOR_DEMAND,

tests/components/airzone/test_binary_sensor.py

@@ -1,5 +1,7 @@
 """The sensor tests for the Airzone platform."""
 
+from aioairzone.const import API_ERROR_LOW_BATTERY
+
 from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.core import HomeAssistant
 
@@ -14,15 +16,22 @@ async def test_airzone_create_binary_sensors(hass: HomeAssistant) -> None:
     state = hass.states.get("binary_sensor.despacho_air_demand")
     assert state.state == STATE_OFF
 
+    state = hass.states.get("binary_sensor.despacho_battery_low")
+    assert state.state == STATE_ON
+
     state = hass.states.get("binary_sensor.despacho_floor_demand")
     assert state is None
 
     state = hass.states.get("binary_sensor.despacho_problem")
-    assert state.state == STATE_OFF
+    assert state.state == STATE_ON
+    assert state.attributes.get("errors") == [API_ERROR_LOW_BATTERY]
 
     state = hass.states.get("binary_sensor.dorm_1_air_demand")
     assert state.state == STATE_OFF
 
+    state = hass.states.get("binary_sensor.dorm_1_battery_low")
+    assert state.state == STATE_OFF
+
     state = hass.states.get("binary_sensor.dorm_1_floor_demand")
     assert state.state == STATE_OFF
 
@@ -32,6 +41,9 @@ async def test_airzone_create_binary_sensors(hass: HomeAssistant) -> None:
     state = hass.states.get("binary_sensor.dorm_2_air_demand")
     assert state.state == STATE_OFF
 
+    state = hass.states.get("binary_sensor.dorm_2_battery_low")
+    assert state.state == STATE_OFF
+
     state = hass.states.get("binary_sensor.dorm_2_floor_demand")
     assert state is None
 
@@ -41,6 +53,9 @@ async def test_airzone_create_binary_sensors(hass: HomeAssistant) -> None:
     state = hass.states.get("binary_sensor.dorm_ppal_air_demand")
     assert state.state == STATE_ON
 
+    state = hass.states.get("binary_sensor.dorm_ppal_battery_low")
+    assert state.state == STATE_OFF
+
     state = hass.states.get("binary_sensor.dorm_ppal_floor_demand")
     assert state.state == STATE_ON
 
@@ -50,6 +65,9 @@ async def test_airzone_create_binary_sensors(hass: HomeAssistant) -> None:
     state = hass.states.get("binary_sensor.salon_air_demand")
     assert state.state == STATE_OFF
 
+    state = hass.states.get("binary_sensor.salon_battery_low")
+    assert state is None
+
     state = hass.states.get("binary_sensor.salon_floor_demand")
     assert state is None
 

tests/components/airzone/util.py

@@ -22,6 +22,9 @@ from aioairzone.const import (
     API_SET_POINT,
     API_SYSTEM_ID,
     API_SYSTEMS,
+    API_THERMOS_FIRMWARE,
+    API_THERMOS_RADIO,
+    API_THERMOS_TYPE,
     API_UNITS,
     API_ZONE_ID,
 )
@@ -58,6 +61,9 @@ HVAC_MOCK = {
                     API_SYSTEM_ID: 1,
                     API_ZONE_ID: 1,
                     API_NAME: "Salon",
+                    API_THERMOS_TYPE: 2,
+                    API_THERMOS_FIRMWARE: "3.51",
+                    API_THERMOS_RADIO: 0,
                     API_ON: 0,
                     API_MAX_TEMP: 30,
                     API_MIN_TEMP: 15,
@@ -79,6 +85,9 @@ HVAC_MOCK = {
                     API_SYSTEM_ID: 1,
                     API_ZONE_ID: 2,
                     API_NAME: "Dorm Ppal",
+                    API_THERMOS_TYPE: 4,
+                    API_THERMOS_FIRMWARE: "3.33",
+                    API_THERMOS_RADIO: 1,
                     API_ON: 1,
                     API_MAX_TEMP: 30,
                     API_MIN_TEMP: 15,
@@ -99,6 +108,9 @@ HVAC_MOCK = {
                     API_SYSTEM_ID: 1,
                     API_ZONE_ID: 3,
                     API_NAME: "Dorm #1",
+                    API_THERMOS_TYPE: 4,
+                    API_THERMOS_FIRMWARE: "3.33",
+                    API_THERMOS_RADIO: 1,
                     API_ON: 1,
                     API_MAX_TEMP: 30,
                     API_MIN_TEMP: 15,
@@ -119,6 +131,9 @@ HVAC_MOCK = {
                     API_SYSTEM_ID: 1,
                     API_ZONE_ID: 4,
                     API_NAME: "Despacho",
+                    API_THERMOS_TYPE: 4,
+                    API_THERMOS_FIRMWARE: "3.33",
+                    API_THERMOS_RADIO: 1,
                     API_ON: 0,
                     API_MAX_TEMP: 86,
                     API_MIN_TEMP: 59,
@@ -131,7 +146,11 @@ HVAC_MOCK = {
                     API_HEAT_STAGE: 1,
                     API_HUMIDITY: 36,
                     API_UNITS: 1,
-                    API_ERRORS: [],
+                    API_ERRORS: [
+                        {
+                            "Zone": "Low battery",
+                        },
+                    ],
                     API_AIR_DEMAND: 0,
                     API_FLOOR_DEMAND: 0,
                 },
@@ -139,6 +158,9 @@ HVAC_MOCK = {
                     API_SYSTEM_ID: 1,
                     API_ZONE_ID: 5,
                     API_NAME: "Dorm #2",
+                    API_THERMOS_TYPE: 4,
+                    API_THERMOS_FIRMWARE: "3.33",
+                    API_THERMOS_RADIO: 1,
                     API_ON: 0,
                     API_MAX_TEMP: 30,
                     API_MIN_TEMP: 15,