Add changes from comments after merging AccuWeather (#38227)

* Fix documentation url

* Return None instead STATE_UNKNOWN

* Invert forecast check

* Patch async_setup_entry in test_create entry

* Improve test name, docstring and add comment

homeassistant/components/accuweather/manifest.json

@@ -1,7 +1,7 @@
 {
   "domain": "accuweather",
   "name": "AccuWeather",
-  "documentation": "https://github.com/bieniu/ha-accuweather",
+  "documentation": "https://www.home-assistant.io/integrations/accuweather/",
   "requirements": ["accuweather==0.0.9"],
   "codeowners": ["@bieniu"],
   "config_flow": true

homeassistant/components/accuweather/weather.py

@@ -12,7 +12,7 @@ from homeassistant.components.weather import (
     ATTR_FORECAST_WIND_SPEED,
     WeatherEntity,
 )
-from homeassistant.const import CONF_NAME, STATE_UNKNOWN, TEMP_CELSIUS, TEMP_FAHRENHEIT
+from homeassistant.const import CONF_NAME, TEMP_CELSIUS, TEMP_FAHRENHEIT
 from homeassistant.util.dt import utc_from_timestamp
 
 from .const import ATTR_FORECAST, ATTRIBUTION, CONDITION_CLASSES, COORDINATOR, DOMAIN
@@ -74,7 +74,7 @@ class AccuWeatherEntity(WeatherEntity):
                 if self.coordinator.data["WeatherIcon"] in v
             ][0]
         except IndexError:
-            return STATE_UNKNOWN
+            return None
 
     @property
     def temperature(self):
@@ -124,13 +124,12 @@ class AccuWeatherEntity(WeatherEntity):
     @property
     def forecast(self):
         """Return the forecast array."""
-        if self.coordinator.forecast:
+        if not self.coordinator.forecast:
+            return None
         # remap keys from library to keys understood by the weather component
         forecast = [
             {
-                    ATTR_FORECAST_TIME: utc_from_timestamp(
-                        item["EpochDate"]
-                    ).isoformat(),
+                ATTR_FORECAST_TIME: utc_from_timestamp(item["EpochDate"]).isoformat(),
                 ATTR_FORECAST_TEMP: item["TemperatureMax"]["Value"],
                 ATTR_FORECAST_TEMP_LOW: item["TemperatureMin"]["Value"],
                 ATTR_FORECAST_PRECIPITATION: self._calc_precipitation(item),
@@ -151,7 +150,6 @@ class AccuWeatherEntity(WeatherEntity):
             for item in self.coordinator.data[ATTR_FORECAST]
         ]
         return forecast
-        return None
 
     async def async_added_to_hass(self):
         """Connect to dispatcher listening for entity data notifications."""

tests/components/accuweather/test_config_flow.py

@@ -29,8 +29,10 @@ async def test_show_form(hass):
     assert result["step_id"] == SOURCE_USER
 
 
-async def test_invalid_api_key_1(hass):
-    """Test that errors are shown when API key is invalid."""
+async def test_api_key_too_short(hass):
+    """Test that errors are shown when API key is too short."""
+    # The API key length check is done by the library without polling the AccuWeather
+    # server so we don't need to patch the library method.
     result = await hass.config_entries.flow.async_init(
         DOMAIN,
         context={"source": SOURCE_USER},
@@ -45,7 +47,7 @@ async def test_invalid_api_key_1(hass):
     assert result["errors"] == {CONF_API_KEY: "invalid_api_key"}
 
 
-async def test_invalid_api_key_2(hass):
+async def test_invalid_api_key(hass):
     """Test that errors are shown when API key is invalid."""
     with patch(
         "accuweather.AccuWeather._async_get_data",
@@ -112,6 +114,8 @@ async def test_create_entry(hass):
     with patch(
         "accuweather.AccuWeather._async_get_data",
         return_value=json.loads(load_fixture("accuweather/location_data.json")),
+    ), patch(
+        "homeassistant.components.accuweather.async_setup_entry", return_value=True
     ):
 
         result = await hass.config_entries.flow.async_init(