Avoid json encoder default fallback when serializing config (#108360)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

homeassistant/core.py

@@ -2416,6 +2416,7 @@ class Config:
 
         Async friendly.
         """
+        allowlist_external_dirs = list(self.allowlist_external_dirs)
         return {
             "latitude": self.latitude,
             "longitude": self.longitude,
@@ -2423,12 +2424,12 @@ class Config:
             "unit_system": self.units.as_dict(),
             "location_name": self.location_name,
             "time_zone": self.time_zone,
-            "components": self.components,
+            "components": list(self.components),
             "config_dir": self.config_dir,
             # legacy, backwards compat
-            "whitelist_external_dirs": self.allowlist_external_dirs,
-            "allowlist_external_dirs": self.allowlist_external_dirs,
-            "allowlist_external_urls": self.allowlist_external_urls,
+            "whitelist_external_dirs": allowlist_external_dirs,
+            "allowlist_external_dirs": allowlist_external_dirs,
+            "allowlist_external_urls": list(self.allowlist_external_urls),
             "version": __version__,
             "config_source": self.config_source,
             "recovery_mode": self.recovery_mode,

tests/components/api/test_init.py

@@ -254,16 +254,20 @@ async def test_api_get_config(hass: HomeAssistant, mock_api_client: TestClient)
     """Test the return of the configuration."""
     resp = await mock_api_client.get(const.URL_API_CONFIG)
     result = await resp.json()
-    if "components" in result:
-        result["components"] = set(result["components"])
-    if "whitelist_external_dirs" in result:
-        result["whitelist_external_dirs"] = set(result["whitelist_external_dirs"])
-    if "allowlist_external_dirs" in result:
-        result["allowlist_external_dirs"] = set(result["allowlist_external_dirs"])
-    if "allowlist_external_urls" in result:
-        result["allowlist_external_urls"] = set(result["allowlist_external_urls"])
+    ignore_order_keys = (
+        "components",
+        "allowlist_external_dirs",
+        "whitelist_external_dirs",
+        "allowlist_external_urls",
+    )
+    config = hass.config.as_dict()
 
-    assert hass.config.as_dict() == result
+    for key in ignore_order_keys:
+        if key in result:
+            result[key] = set(result[key])
+            config[key] = set(config[key])
+
+    assert result == config
 
 
 async def test_api_get_components(

tests/components/mobile_app/test_webhook.py

@@ -318,7 +318,7 @@ async def test_webhook_handle_get_config(
         "unit_system": hass_config["unit_system"],
         "location_name": hass_config["location_name"],
         "time_zone": hass_config["time_zone"],
-        "components": hass_config["components"],
+        "components": set(hass_config["components"]),
         "version": hass_config["version"],
         "theme_color": "#03A9F4",  # Default frontend theme color
         "entities": {

tests/components/websocket_api/test_commands.py

@@ -716,22 +716,21 @@ async def test_get_config(
     assert msg["type"] == const.TYPE_RESULT
     assert msg["success"]
 
-    if "components" in msg["result"]:
-        msg["result"]["components"] = set(msg["result"]["components"])
-    if "whitelist_external_dirs" in msg["result"]:
-        msg["result"]["whitelist_external_dirs"] = set(
-            msg["result"]["whitelist_external_dirs"]
-        )
-    if "allowlist_external_dirs" in msg["result"]:
-        msg["result"]["allowlist_external_dirs"] = set(
-            msg["result"]["allowlist_external_dirs"]
-        )
-    if "allowlist_external_urls" in msg["result"]:
-        msg["result"]["allowlist_external_urls"] = set(
-            msg["result"]["allowlist_external_urls"]
+    result = msg["result"]
+    ignore_order_keys = (
+        "components",
+        "allowlist_external_dirs",
+        "whitelist_external_dirs",
+        "allowlist_external_urls",
     )
+    config = hass.config.as_dict()
 
-    assert msg["result"] == hass.config.as_dict()
+    for key in ignore_order_keys:
+        if key in result:
+            result[key] = set(result[key])
+            config[key] = set(config[key])
+
+    assert result == config
 
 
 async def test_ping(websocket_client: MockHAClientWebSocket) -> None:

tests/test_core.py

@@ -1622,11 +1622,11 @@ async def test_config_as_dict() -> None:
         CONF_UNIT_SYSTEM: METRIC_SYSTEM.as_dict(),
         "location_name": "Home",
         "time_zone": "UTC",
-        "components": set(),
+        "components": [],
         "config_dir": "/test/ha-config",
-        "whitelist_external_dirs": set(),
-        "allowlist_external_dirs": set(),
-        "allowlist_external_urls": set(),
+        "whitelist_external_dirs": [],
+        "allowlist_external_dirs": [],
+        "allowlist_external_urls": [],
         "version": __version__,
         "config_source": ha.ConfigSource.DEFAULT,
         "recovery_mode": False,