Simplify wake_word/info + improve test coverage (#100902)

* Simplify wake_word/info + improve test coverage

* Fix test

* Revert unrelated changes

homeassistant/components/wake_word/__init__.py

@@ -3,7 +3,6 @@ from __future__ import annotations
 
 from abc import abstractmethod
 from collections.abc import AsyncIterable
-import dataclasses
 import logging
 from typing import final
 
@@ -150,5 +149,5 @@ def websocket_entity_info(
 
     connection.send_result(
         msg["id"],
-        {"wake_words": [dataclasses.asdict(ww) for ww in entity.supported_wake_words]},
+        {"wake_words": entity.supported_wake_words},
     )

tests/components/wake_word/test_init.py

@@ -287,3 +287,24 @@ async def test_list_wake_words(
             {"id": "test_ww_2", "name": "Test Wake Word 2"},
         ]
     }
+
+
+async def test_list_wake_words_unknown_entity(
+    hass: HomeAssistant,
+    setup: MockProviderEntity,
+    hass_ws_client: WebSocketGenerator,
+) -> None:
+    """Test that the list_wake_words websocket command works."""
+    client = await hass_ws_client(hass)
+    await client.send_json(
+        {
+            "id": 5,
+            "type": "wake_word/info",
+            "entity_id": "wake_word.blah",
+        }
+    )
+
+    msg = await client.receive_json()
+
+    assert not msg["success"]
+    assert msg["error"] == {"code": "not_found", "message": "Entity not found"}