def test_weather_underground_weather_source(consumption_history_one_summer_electricity):
wunderground_api_key = os.environ.get('WEATHERUNDERGROUND_API_KEY')
if wunderground_api_key:
wu_weather_source = WeatherUndergroundWeatherSource('60605',
datetime(2012,6,1),
datetime(2012,10,1),
wunderground_api_key)
consumptions = consumption_history_one_summer_electricity.get("electricity")
avg_temps = wu_weather_source.get_average_temperature(consumptions,"degF")
assert abs(avg_temps[0] - 74.4333333333) < EPSILON
assert abs(avg_temps[1] - 82.6774193548) < EPSILON
assert abs(avg_temps[2] - 75.4516129032) < EPSILON
hdds = wu_weather_source.get_hdd(consumptions,"degF",65)
assert abs(hdds[0] - 14.0) < EPSILON
assert abs(hdds[1] - 0.0) < EPSILON
assert abs(hdds[2] - 0.0) < EPSILON
cdds = wu_weather_source.get_cdd(consumptions,"degF",65)
assert abs(cdds[0] - 297.0) < EPSILON
assert abs(cdds[1] - 548.0) < EPSILON
assert abs(cdds[2] - 324.0) < EPSILON
else:
warnings.warn("Skipping WeatherUndergroundWeatherSource tests. "
"Please set the environment variable "
"WEATHERUNDERGOUND_API_KEY to run the tests.")
