From 90f5b178ef732bd3d27db03de9cd0c85e4df61ee Mon Sep 17 00:00:00 2001
From: springstan <46536646+springstan@users.noreply.github.com>
Date: Tue, 15 Sep 2020 23:00:26 +0200
Subject: [PATCH] Use AREA_SQUARE_METERS constant in all integrations (#40107)

---
 homeassistant/components/ambient_station/__init__.py | 8 +++++++-
 homeassistant/components/bloomsky/sensor.py          | 5 +++--
 homeassistant/components/isy994/const.py             | 3 ++-
 homeassistant/components/smartthings/sensor.py       | 8 +++++++-
 homeassistant/components/zamg/sensor.py              | 8 +++++++-
 5 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/homeassistant/components/ambient_station/__init__.py b/homeassistant/components/ambient_station/__init__.py
index f8b2cd7348d..ac8ae18a657 100644
--- a/homeassistant/components/ambient_station/__init__.py
+++ b/homeassistant/components/ambient_station/__init__.py
@@ -9,6 +9,7 @@ import voluptuous as vol
 from homeassistant.components.binary_sensor import DEVICE_CLASS_CONNECTIVITY
 from homeassistant.config_entries import SOURCE_IMPORT
 from homeassistant.const import (
+    AREA_SQUARE_METERS,
     ATTR_LOCATION,
     ATTR_NAME,
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
@@ -206,7 +207,12 @@ SENSOR_TYPES = {
     TYPE_SOILTEMP7F: ("Soil Temp 7", TEMP_FAHRENHEIT, TYPE_SENSOR, "temperature"),
     TYPE_SOILTEMP8F: ("Soil Temp 8", TEMP_FAHRENHEIT, TYPE_SENSOR, "temperature"),
     TYPE_SOILTEMP9F: ("Soil Temp 9", TEMP_FAHRENHEIT, TYPE_SENSOR, "temperature"),
-    TYPE_SOLARRADIATION: ("Solar Rad", f"{POWER_WATT}/m^2", TYPE_SENSOR, None),
+    TYPE_SOLARRADIATION: (
+        "Solar Rad",
+        f"{POWER_WATT}/{AREA_SQUARE_METERS}",
+        TYPE_SENSOR,
+        None,
+    ),
     TYPE_SOLARRADIATION_LX: ("Solar Rad (lx)", "lx", TYPE_SENSOR, "illuminance"),
     TYPE_TEMP10F: ("Temp 10", TEMP_FAHRENHEIT, TYPE_SENSOR, "temperature"),
     TYPE_TEMP1F: ("Temp 1", TEMP_FAHRENHEIT, TYPE_SENSOR, "temperature"),
diff --git a/homeassistant/components/bloomsky/sensor.py b/homeassistant/components/bloomsky/sensor.py
index 0ddeec6a577..812efe7697e 100644
--- a/homeassistant/components/bloomsky/sensor.py
+++ b/homeassistant/components/bloomsky/sensor.py
@@ -5,6 +5,7 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
+    AREA_SQUARE_METERS,
     CONF_MONITORED_CONDITIONS,
     PERCENTAGE,
     TEMP_CELSIUS,
@@ -32,7 +33,7 @@ SENSOR_UNITS_IMPERIAL = {
     "Temperature": TEMP_FAHRENHEIT,
     "Humidity": PERCENTAGE,
     "Pressure": "inHg",
-    "Luminance": "cd/m²",
+    "Luminance": f"cd/{AREA_SQUARE_METERS}",
     "Voltage": "mV",
 }
 
@@ -41,7 +42,7 @@ SENSOR_UNITS_METRIC = {
     "Temperature": TEMP_CELSIUS,
     "Humidity": PERCENTAGE,
     "Pressure": "mbar",
-    "Luminance": "cd/m²",
+    "Luminance": f"cd/{AREA_SQUARE_METERS}",
     "Voltage": "mV",
 }
 
diff --git a/homeassistant/components/isy994/const.py b/homeassistant/components/isy994/const.py
index 4fb32d3843d..3e19dda1ea8 100644
--- a/homeassistant/components/isy994/const.py
+++ b/homeassistant/components/isy994/const.py
@@ -44,6 +44,7 @@ from homeassistant.components.lock import DOMAIN as LOCK
 from homeassistant.components.sensor import DOMAIN as SENSOR
 from homeassistant.components.switch import DOMAIN as SWITCH
 from homeassistant.const import (
+    AREA_SQUARE_METERS,
     CONCENTRATION_PARTS_PER_MILLION,
     DEGREE,
     ENERGY_KILO_WATT_HOUR,
@@ -379,7 +380,7 @@ UOM_FRIENDLY_NAME = {
     "71": UV_INDEX,
     "72": VOLT,
     "73": POWER_WATT,
-    "74": f"{POWER_WATT}/{LENGTH_METERS}²",
+    "74": f"{POWER_WATT}/{AREA_SQUARE_METERS}",
     "75": "weekday",
     "76": DEGREE,
     "77": TIME_YEARS,
diff --git a/homeassistant/components/smartthings/sensor.py b/homeassistant/components/smartthings/sensor.py
index 7de3b98b1da..a7a15e3cefc 100644
--- a/homeassistant/components/smartthings/sensor.py
+++ b/homeassistant/components/smartthings/sensor.py
@@ -5,6 +5,7 @@ from typing import Optional, Sequence
 from pysmartthings import Attribute, Capability
 
 from homeassistant.const import (
+    AREA_SQUARE_METERS,
     CONCENTRATION_PARTS_PER_MILLION,
     DEVICE_CLASS_BATTERY,
     DEVICE_CLASS_HUMIDITY,
@@ -41,7 +42,12 @@ CAPABILITY_TO_SENSORS = {
         Map(Attribute.battery, "Battery", PERCENTAGE, DEVICE_CLASS_BATTERY)
     ],
     Capability.body_mass_index_measurement: [
-        Map(Attribute.bmi_measurement, "Body Mass Index", f"{MASS_KILOGRAMS}/m^2", None)
+        Map(
+            Attribute.bmi_measurement,
+            "Body Mass Index",
+            f"{MASS_KILOGRAMS}/{AREA_SQUARE_METERS}",
+            None,
+        )
     ],
     Capability.body_weight_measurement: [
         Map(Attribute.body_weight_measurement, "Body Weight", MASS_KILOGRAMS, None)
diff --git a/homeassistant/components/zamg/sensor.py b/homeassistant/components/zamg/sensor.py
index 0aa5dea0687..9372be58493 100644
--- a/homeassistant/components/zamg/sensor.py
+++ b/homeassistant/components/zamg/sensor.py
@@ -12,6 +12,7 @@ import requests
 import voluptuous as vol
 
 from homeassistant.const import (
+    AREA_SQUARE_METERS,
     ATTR_ATTRIBUTION,
     CONF_LATITUDE,
     CONF_LONGITUDE,
@@ -60,7 +61,12 @@ SENSOR_TYPES = {
     "wind_max_bearing": ("Top Wind Bearing", DEGREE, f"WSR {DEGREE}", int),
     "sun_last_hour": ("Sun Last Hour", PERCENTAGE, f"SO {PERCENTAGE}", int),
     "temperature": ("Temperature", TEMP_CELSIUS, f"T {TEMP_CELSIUS}", float),
-    "precipitation": ("Precipitation", "l/m²", "N l/m²", float),
+    "precipitation": (
+        "Precipitation",
+        f"l/{AREA_SQUARE_METERS}",
+        f"N l/{AREA_SQUARE_METERS}",
+        float,
+    ),
     "dewpoint": ("Dew Point", TEMP_CELSIUS, f"TP {TEMP_CELSIUS}", float),
     # The following probably not useful for general consumption,
     # but we need them to fill in internal attributes