async def _async_update_data(self):
"""Update data via library."""
data = {}
try:
obs = await self.airnow.observations.latLong(
self.latitude,
self.longitude,
distance=self.distance,
)
except (AirNowError, ClientConnectorError) as error:
raise UpdateFailed(error) from error
if not obs:
raise UpdateFailed("No data was returned from AirNow")
max_aqi = 0
max_aqi_level = 0
max_aqi_desc = ""
max_aqi_poll = ""
for obv in obs:
# Convert AQIs to Concentration
pollutant = obv[ATTR_API_AQI_PARAM]
concentration = aqi_to_concentration(obv[ATTR_API_AQI], pollutant)
data[obv[ATTR_API_AQI_PARAM]] = concentration
# Overall AQI is the max of all pollutant AQIs
if obv[ATTR_API_AQI] > max_aqi:
max_aqi = obv[ATTR_API_AQI]
max_aqi_level = obv[ATTR_API_CATEGORY][ATTR_API_CAT_LEVEL]
max_aqi_desc = obv[ATTR_API_CATEGORY][ATTR_API_CAT_DESCRIPTION]
max_aqi_poll = pollutant
# Copy other data from PM2.5 Value
if obv[ATTR_API_AQI_PARAM] == ATTR_API_PM25:
# Copy Report Details
data[ATTR_API_REPORT_DATE] = obv[ATTR_API_REPORT_DATE]
data[ATTR_API_REPORT_HOUR] = obv[ATTR_API_REPORT_HOUR]
# Copy Station Details
data[ATTR_API_STATE] = obv[ATTR_API_STATE]
data[ATTR_API_STATION] = obv[ATTR_API_STATION]
data[ATTR_API_STATION_LATITUDE] = obv[
ATTR_API_STATION_LATITUDE]
data[ATTR_API_STATION_LONGITUDE] = obv[
ATTR_API_STATION_LONGITUDE]
# Store Overall AQI
data[ATTR_API_AQI] = max_aqi
data[ATTR_API_AQI_LEVEL] = max_aqi_level
data[ATTR_API_AQI_DESCRIPTION] = max_aqi_desc
data[ATTR_API_POLLUTANT] = max_aqi_poll
return data
def test_convert_pm25():
assert aqi_to_concentration(0, 'PM2.5') == 0
assert aqi_to_concentration(25, 'PM2.5') == 6
assert aqi_to_concentration(50, 'PM2.5') == 12
assert aqi_to_concentration(51, 'PM2.5') == 12.1
assert aqi_to_concentration(86, 'PM2.5') == 28.7
assert aqi_to_concentration(144, 'PM2.5') == 53.0
assert concentration_to_aqi(0, 'PM2.5') == 0
assert concentration_to_aqi(12.0, 'PM2.5') == 50
assert concentration_to_aqi(12.1, 'PM2.5') == 51
assert concentration_to_aqi(28.66, 'PM2.5') == 86
assert concentration_to_aqi(53.0, 'PM2.5') == 144
def test_convert_invalid_overrange_aqi():
with pytest.raises(ValueError):
aqi_to_concentration(501, 'PM2.5')
def test_convert_invalid_negative_aqi():
with pytest.raises(ValueError):
aqi_to_concentration(-1, 'PM2.5')