From 44fec53bacb8b479a91b15d1affce0c51b8f7997 Mon Sep 17 00:00:00 2001
From: Vincent Wolsink <ik@vincentwolsink.nl>
Date: Sun, 20 Jul 2025 22:50:53 +0200
Subject: [PATCH] Add binary_sensor for door status in Huum (#149135)

---
 .../components/huum/binary_sensor.py          | 42 ++++++++++++++++
 homeassistant/components/huum/const.py        |  2 +-
 .../huum/snapshots/test_binary_sensor.ambr    | 50 +++++++++++++++++++
 tests/components/huum/test_binary_sensor.py   | 29 +++++++++++
 4 files changed, 122 insertions(+), 1 deletion(-)
 create mode 100644 homeassistant/components/huum/binary_sensor.py
 create mode 100644 tests/components/huum/snapshots/test_binary_sensor.ambr
 create mode 100644 tests/components/huum/test_binary_sensor.py

diff --git a/homeassistant/components/huum/binary_sensor.py b/homeassistant/components/huum/binary_sensor.py
new file mode 100644
index 00000000000..a8e094dda94
--- /dev/null
+++ b/homeassistant/components/huum/binary_sensor.py
@@ -0,0 +1,42 @@
+"""Sensor for door state."""
+
+from __future__ import annotations
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDeviceClass,
+    BinarySensorEntity,
+)
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
+
+from .coordinator import HuumConfigEntry, HuumDataUpdateCoordinator
+from .entity import HuumBaseEntity
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: HuumConfigEntry,
+    async_add_entities: AddConfigEntryEntitiesCallback,
+) -> None:
+    """Set up door sensor."""
+    async_add_entities(
+        [HuumDoorSensor(config_entry.runtime_data)],
+    )
+
+
+class HuumDoorSensor(HuumBaseEntity, BinarySensorEntity):
+    """Representation of a BinarySensor."""
+
+    _attr_name = "Door"
+    _attr_device_class = BinarySensorDeviceClass.DOOR
+
+    def __init__(self, coordinator: HuumDataUpdateCoordinator) -> None:
+        """Initialize the BinarySensor."""
+        super().__init__(coordinator)
+
+        self._attr_unique_id = f"{coordinator.config_entry.entry_id}_door"
+
+    @property
+    def is_on(self) -> bool | None:
+        """Return the current value."""
+        return not self.coordinator.data.door_closed
diff --git a/homeassistant/components/huum/const.py b/homeassistant/components/huum/const.py
index 69dea45b218..6691a2ad8b3 100644
--- a/homeassistant/components/huum/const.py
+++ b/homeassistant/components/huum/const.py
@@ -4,4 +4,4 @@ from homeassistant.const import Platform
 
 DOMAIN = "huum"
 
-PLATFORMS = [Platform.CLIMATE]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.CLIMATE]
diff --git a/tests/components/huum/snapshots/test_binary_sensor.ambr b/tests/components/huum/snapshots/test_binary_sensor.ambr
new file mode 100644
index 00000000000..3490ff594b6
--- /dev/null
+++ b/tests/components/huum/snapshots/test_binary_sensor.ambr
@@ -0,0 +1,50 @@
+# serializer version: 1
+# name: test_binary_sensor[binary_sensor.huum_sauna_door-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'binary_sensor',
+    'entity_category': None,
+    'entity_id': 'binary_sensor.huum_sauna_door',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <BinarySensorDeviceClass.DOOR: 'door'>,
+    'original_icon': None,
+    'original_name': 'Door',
+    'platform': 'huum',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'AABBCC112233_door',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_binary_sensor[binary_sensor.huum_sauna_door-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'door',
+      'friendly_name': 'Huum sauna Door',
+    }),
+    'context': <ANY>,
+    'entity_id': 'binary_sensor.huum_sauna_door',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'off',
+  })
+# ---
diff --git a/tests/components/huum/test_binary_sensor.py b/tests/components/huum/test_binary_sensor.py
new file mode 100644
index 00000000000..5ea2ae69a11
--- /dev/null
+++ b/tests/components/huum/test_binary_sensor.py
@@ -0,0 +1,29 @@
+"""Tests for the Huum climate entity."""
+
+from unittest.mock import AsyncMock
+
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import setup_with_selected_platforms
+
+from tests.common import MockConfigEntry, snapshot_platform
+
+ENTITY_ID = "binary_sensor.huum_sauna_door"
+
+
+async def test_binary_sensor(
+    hass: HomeAssistant,
+    mock_huum: AsyncMock,
+    mock_config_entry: MockConfigEntry,
+    snapshot: SnapshotAssertion,
+    entity_registry: er.EntityRegistry,
+) -> None:
+    """Test the initial parameters."""
+    await setup_with_selected_platforms(
+        hass, mock_config_entry, [Platform.BINARY_SENSOR]
+    )
+    await snapshot_platform(hass, entity_registry, snapshot, mock_config_entry.entry_id)