Add translation to Jellyfin (#123857)

* Add translation to Jellyfin

* Fix

* Address feedback

homeassistant/components/jellyfin/sensor.py

@@ -35,9 +35,8 @@ def _count_now_playing(data: JellyfinDataT) -> int:
     "sessions": JellyfinSensorEntityDescription(
         key="watching",
         translation_key="watching",
-        name=None,
-        native_unit_of_measurement="Watching",
         value_fn=_count_now_playing,
+        native_unit_of_measurement="clients",
     )
 }
 
@@ -59,6 +58,7 @@ async def async_setup_entry(
 class JellyfinSensor(JellyfinEntity, SensorEntity):
     """Defines a Jellyfin sensor entity."""
 
+    _attr_has_entity_name = True
     entity_description: JellyfinSensorEntityDescription
 
     @property

homeassistant/components/jellyfin/strings.json

@@ -26,6 +26,13 @@
       "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
     }
   },
+  "entity": {
+    "sensor": {
+      "watching": {
+        "name": "Active clients"
+      }
+    }
+  },
   "options": {
     "step": {
       "init": {

tests/components/jellyfin/test_sensor.py

@@ -4,12 +4,7 @@
 
 from homeassistant.components.jellyfin.const import DOMAIN
 from homeassistant.components.sensor import ATTR_STATE_CLASS
-from homeassistant.const import (
-    ATTR_DEVICE_CLASS,
-    ATTR_FRIENDLY_NAME,
-    ATTR_ICON,
-    ATTR_UNIT_OF_MEASUREMENT,
-)
+from homeassistant.const import ATTR_DEVICE_CLASS, ATTR_FRIENDLY_NAME, ATTR_ICON
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr, entity_registry as er
 
@@ -24,13 +19,12 @@ async def test_watching(
     mock_jellyfin: MagicMock,
 ) -> None:
     """Test the Jellyfin watching sensor."""
-    state = hass.states.get("sensor.jellyfin_server")
+    state = hass.states.get("sensor.jellyfin_server_active_clients")
     assert state
     assert state.attributes.get(ATTR_DEVICE_CLASS) is None
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "JELLYFIN-SERVER"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "JELLYFIN-SERVER Active clients"
     assert state.attributes.get(ATTR_ICON) is None
     assert state.attributes.get(ATTR_STATE_CLASS) is None
-    assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == "Watching"
     assert state.state == "3"
 
     entry = entity_registry.async_get(state.entity_id)