From fd3318bb0d78fe0e85f2e780c46fcbe183d0197b Mon Sep 17 00:00:00 2001
From: mettolen <1007649+mettolen@users.noreply.github.com>
Date: Mon, 6 Jul 2026 13:07:50 +0300
Subject: [PATCH] Add translation support for connection errors in Saunum
 integration (#175675)

---
 homeassistant/components/saunum/__init__.py  | 7 +++++--
 homeassistant/components/saunum/strings.json | 3 +++
 tests/components/saunum/test_init.py         | 4 ++++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/homeassistant/components/saunum/__init__.py b/homeassistant/components/saunum/__init__.py
index 8dca2541ab14..7c9578ea9bec 100644
--- a/homeassistant/components/saunum/__init__.py
+++ b/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)
 
diff --git a/homeassistant/components/saunum/strings.json b/homeassistant/components/saunum/strings.json
index 4e3645b66991..9b480f6a1eb0 100644
--- a/homeassistant/components/saunum/strings.json
+++ b/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"
     },
diff --git a/tests/components/saunum/test_init.py b/tests/components/saunum/test_init.py
index 3a41acf57b5b..8de4866dbedf 100644
--- a/tests/components/saunum/test_init.py
+++ b/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")