From 813bf055ab02390dd3cc1754ef030a5d7241226f Mon Sep 17 00:00:00 2001
From: Brett Adams <Bre77@users.noreply.github.com>
Date: Tue, 29 Sep 2026 17:18:42 +1000
Subject: [PATCH] Fix Teslemetry streaming binary sensors restoring unknown as
 off (#183451)

---
 .../components/teslemetry/binary_sensor.py    |  7 ++-
 .../teslemetry/test_binary_sensor.py          | 48 +++++++++++++------
 2 files changed, 39 insertions(+), 16 deletions(-)

diff --git a/homeassistant/components/teslemetry/binary_sensor.py b/homeassistant/components/teslemetry/binary_sensor.py
index 2761bae6d1b2..ba18040ffa55 100644
--- a/homeassistant/components/teslemetry/binary_sensor.py
+++ b/homeassistant/components/teslemetry/binary_sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.binary_sensor import (
     BinarySensorEntity,
     BinarySensorEntityDescription,
 )
-from homeassistant.const import STATE_ON, EntityCategory, Platform
+from homeassistant.const import STATE_OFF, STATE_ON, EntityCategory, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.restore_state import RestoreEntity
@@ -644,7 +644,10 @@ class TeslemetryVehicleStreamingBinarySensorEntity(
         """Handle entity which will be added."""
         await super().async_added_to_hass()
         if (state := await self.async_get_last_state()) is not None:
-            self._attr_is_on = state.state == STATE_ON
+            if state.state == STATE_ON:
+                self._attr_is_on = True
+            elif state.state == STATE_OFF:
+                self._attr_is_on = False
 
         assert self.entity_description.streaming_listener
         self.async_on_remove(
diff --git a/tests/components/teslemetry/test_binary_sensor.py b/tests/components/teslemetry/test_binary_sensor.py
index 1f13871be3a7..0033a4617ec8 100644
--- a/tests/components/teslemetry/test_binary_sensor.py
+++ b/tests/components/teslemetry/test_binary_sensor.py
@@ -8,14 +8,14 @@ from syrupy.assertion import SnapshotAssertion
 from teslemetry_stream import Signal
 
 from homeassistant.components.teslemetry.coordinator import VEHICLE_INTERVAL
-from homeassistant.const import Platform
-from homeassistant.core import HomeAssistant
+from homeassistant.const import STATE_UNAVAILABLE, STATE_UNKNOWN, Platform
+from homeassistant.core import HomeAssistant, State
 from homeassistant.helpers import entity_registry as er
 
 from . import assert_entities, assert_entities_alt, setup_platform
 from .const import VEHICLE_DATA_ALT
 
-from tests.common import async_fire_time_changed
+from tests.common import async_fire_time_changed, mock_restore_cache
 
 
 @pytest.mark.usefixtures("entity_registry_enabled_by_default")
@@ -76,14 +76,12 @@ async def test_binary_sensors_streaming(
                 Signal.RD_WINDOW: "WindowStateClosed",
                 Signal.RP_WINDOW: "WindowStatePartiallyOpen",
                 Signal.DOOR_STATE: {
-                    "DoorState": {
-                        "DriverFront": True,
-                        "DriverRear": False,
-                        "PassengerFront": False,
-                        "PassengerRear": False,
-                        "TrunkFront": False,
-                        "TrunkRear": False,
-                    }
+                    "DriverFront": True,
+                    "DriverRear": False,
+                    "PassengerFront": False,
+                    "PassengerRear": False,
+                    "TrunkFront": False,
+                    "TrunkRear": False,
                 },
                 Signal.DRIVER_SEAT_BELT: None,
                 Signal.REAR_DEFROST_ENABLED: True,
@@ -99,15 +97,37 @@ async def test_binary_sensors_streaming(
 
     # Assert the entities restored their values with concrete assertions
     assert hass.states.get("binary_sensor.test_front_driver_window").state == "on"
-    assert hass.states.get("binary_sensor.test_front_passenger_window").state == "off"
+    assert (
+        hass.states.get("binary_sensor.test_front_passenger_window").state
+        == STATE_UNKNOWN
+    )
     assert hass.states.get("binary_sensor.test_rear_driver_window").state == "off"
     assert hass.states.get("binary_sensor.test_rear_passenger_window").state == "on"
-    assert hass.states.get("binary_sensor.test_front_driver_door").state == "off"
+    assert hass.states.get("binary_sensor.test_front_driver_door").state == "on"
     assert hass.states.get("binary_sensor.test_front_passenger_door").state == "off"
-    assert hass.states.get("binary_sensor.test_driver_seat_belt").state == "off"
+    assert hass.states.get("binary_sensor.test_driver_seat_belt").state == STATE_UNKNOWN
     assert hass.states.get("binary_sensor.test_rear_defroster").state == "on"
 
 
+@pytest.mark.parametrize("restored_state", [STATE_UNKNOWN, STATE_UNAVAILABLE])
+@pytest.mark.parametrize(
+    "entity_id",
+    ["binary_sensor.test_front_driver_window", "binary_sensor.test_charge_cable"],
+)
+async def test_binary_sensors_streaming_restore_unknown(
+    hass: HomeAssistant,
+    entity_id: str,
+    restored_state: str,
+) -> None:
+    """Tests that a restored unknown or unavailable state is not restored as off."""
+
+    mock_restore_cache(hass, (State(entity_id, restored_state),))
+
+    await setup_platform(hass, [Platform.BINARY_SENSOR])
+
+    assert hass.states.get(entity_id).state == STATE_UNKNOWN
+
+
 async def test_binary_sensors_connectivity(
     hass: HomeAssistant,
     freezer: FrozenDateTimeFactory,