Add translation support for connection errors in Saunum integration (#175675)

homeassistant/components/saunum/__init__.py

@@ -39,8 +39,11 @@ async def async_setup_entry(hass: HomeAssistant, entry: LeilSaunaConfigEntry) ->
     try:
         client = await SaunumClient.create(host)
     except (SaunumConnectionError, SaunumTimeoutError) as exc:
-        # pylint: disable-next=home-assistant-exception-not-translated
-        raise ConfigEntryNotReady(f"Error connecting to {host}: {exc}") from exc
+        raise ConfigEntryNotReady(
+            translation_domain=DOMAIN,
+            translation_key="cannot_connect",
+            translation_placeholders={"host": host},
+        ) from exc
 
     entry.async_on_unload(client.async_close)
 

homeassistant/components/saunum/strings.json

@@ -87,6 +87,9 @@
     }
   },
   "exceptions": {
+    "cannot_connect": {
+      "message": "Error connecting to {host}"
+    },
     "communication_error": {
       "message": "Communication error with sauna control unit"
     },

tests/components/saunum/test_init.py

@@ -44,6 +44,10 @@ async def test_async_setup_entry_connection_failed(
         assert not await hass.config_entries.async_setup(mock_config_entry.entry_id)
 
     assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY
+    assert mock_config_entry.error_reason_translation_key == "cannot_connect"
+    assert mock_config_entry.error_reason_translation_placeholders == {
+        "host": mock_config_entry.data["host"],
+    }
 
 
 @pytest.mark.usefixtures("init_integration")