Always setup demo platforms with device support from config entry (#94586)

* Always setup demo platforms with device support from config entry

* Adjust test fixutres

* Update tests depending on the demo integration

homeassistant/components/demo/__init__.py

@@ -63,9 +63,6 @@ CONFIG_SCHEMA = cv.empty_config_schema(DOMAIN)
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the demo environment."""
-    if DOMAIN not in config:
-        return True
-
     if not hass.config_entries.async_entries(DOMAIN):
         hass.async_create_task(
             hass.config_entries.flow.async_init(
@@ -73,6 +70,9 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
             )
         )
 
+    if DOMAIN not in config:
+        return True
+
     # Set up demo platforms
     for platform in COMPONENTS_WITH_DEMO_PLATFORM:
         hass.async_create_task(async_load_platform(hass, platform, DOMAIN, {}, config))

homeassistant/components/demo/binary_sensor.py

@@ -9,18 +9,16 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo binary sensor platform."""
+    """Set up the demo binary sensor platform."""
     async_add_entities(
         [
             DemoBinarySensor(
@@ -36,42 +34,30 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoBinarySensor(BinarySensorEntity):
     """representation of a Demo binary sensor."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         state: bool,
         device_class: BinarySensorDeviceClass,
     ) -> None:
         """Initialize the demo sensor."""
         self._unique_id = unique_id
-        self._attr_name = name
+        self._attr_name = None
         self._state = state
         self._attr_device_class = device_class
-
-    @property
-    def device_info(self) -> DeviceInfo:
-        """Return device info."""
-        return DeviceInfo(
+        self._attr_device_info = DeviceInfo(
             identifiers={
                 # Serial numbers are unique identifiers within a specific domain
                 (DOMAIN, self.unique_id)
             },
-            name=self.name,
+            name=device_name,
         )
 
     @property

homeassistant/components/demo/button.py

@@ -4,59 +4,47 @@ from __future__ import annotations
 from homeassistant.components import persistent_notification
 from homeassistant.components.button import ButtonEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_DEFAULT_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
-    hass: HomeAssistant,
-    config: ConfigType,
-    async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
-) -> None:
-    """Set up the demo Button entity."""
-    async_add_entities(
-        [
-            DemoButton(
-                unique_id="push",
-                name="Push",
-                icon="mdi:gesture-tap-button",
-            ),
-        ]
-    )
-
-
 async def async_setup_entry(
     hass: HomeAssistant,
     config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
+    """Set up the demo button platform."""
+    async_add_entities(
+        [
+            DemoButton(
+                unique_id="push",
+                device_name="Push",
+                icon="mdi:gesture-tap-button",
+            ),
+        ]
+    )
 
 
 class DemoButton(ButtonEntity):
     """Representation of a demo button entity."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         icon: str,
     ) -> None:
         """Initialize the Demo button entity."""
         self._attr_unique_id = unique_id
-        self._attr_name = name or DEVICE_DEFAULT_NAME
         self._attr_icon = icon
         self._attr_device_info = {
             "identifiers": {(DOMAIN, unique_id)},
-            "name": name,
+            "name": device_name,
         }
 
     async def async_press(self) -> None:

homeassistant/components/demo/camera.py

@@ -7,22 +7,6 @@ from homeassistant.components.camera import Camera, CameraEntityFeature
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
-
-
-async def async_setup_platform(
-    hass: HomeAssistant,
-    config: ConfigType,
-    async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
-) -> None:
-    """Set up the Demo camera platform."""
-    async_add_entities(
-        [
-            DemoCamera("Demo camera", "image/jpg"),
-            DemoCamera("Demo camera png", "image/png"),
-        ]
-    )
 
 
 async def async_setup_entry(
@@ -31,7 +15,12 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
+    async_add_entities(
+        [
+            DemoCamera("Demo camera", "image/jpg"),
+            DemoCamera("Demo camera png", "image/png"),
+        ]
+    )
 
 
 class DemoCamera(Camera):

homeassistant/components/demo/climate.py

@@ -14,27 +14,24 @@ from homeassistant.components.climate import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import ATTR_TEMPERATURE, UnitOfTemperature
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 SUPPORT_FLAGS = ClimateEntityFeature(0)
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo climate devices."""
+    """Set up the demo climate platform."""
     async_add_entities(
         [
             DemoClimate(
                 unique_id="climate_1",
-                name="HeatPump",
+                device_name="HeatPump",
                 target_temperature=68,
                 unit_of_measurement=UnitOfTemperature.FAHRENHEIT,
                 preset=None,
@@ -52,7 +49,7 @@ async def async_setup_platform(
             ),
             DemoClimate(
                 unique_id="climate_2",
-                name="Hvac",
+                device_name="Hvac",
                 target_temperature=21,
                 unit_of_measurement=UnitOfTemperature.CELSIUS,
                 preset=None,
@@ -70,7 +67,7 @@ async def async_setup_platform(
             ),
             DemoClimate(
                 unique_id="climate_3",
-                name="Ecobee",
+                device_name="Ecobee",
                 target_temperature=None,
                 unit_of_measurement=UnitOfTemperature.CELSIUS,
                 preset="home",
@@ -91,25 +88,17 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo climate devices config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoClimate(ClimateEntity):
     """Representation of a demo climate device."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
     _attr_translation_key = "ubercool"
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         target_temperature: float | None,
         unit_of_measurement: str,
         preset: str | None,
@@ -128,7 +117,6 @@ class DemoClimate(ClimateEntity):
     ) -> None:
         """Initialize the climate device."""
         self._unique_id = unique_id
-        self._attr_name = name
         self._attr_supported_features = SUPPORT_FLAGS
         if target_temperature is not None:
             self._attr_supported_features |= ClimateEntityFeature.TARGET_TEMPERATURE
@@ -163,17 +151,10 @@ class DemoClimate(ClimateEntity):
         self._swing_modes = ["auto", "1", "2", "3", "off"]
         self._target_temperature_high = target_temp_high
         self._target_temperature_low = target_temp_low
-
-    @property
-    def device_info(self) -> DeviceInfo:
-        """Return device info."""
-        return DeviceInfo(
-            identifiers={
-                # Serial numbers are unique identifiers within a specific domain
-                (DOMAIN, self.unique_id)
-            },
-            name=self.name,
-        )
+        self._attr_device_info = {
+            "identifiers": {(DOMAIN, unique_id)},
+            "name": device_name,
+        }
 
     @property
     def unique_id(self) -> str:

homeassistant/components/demo/cover.py

@@ -16,18 +16,16 @@ from homeassistant.core import CALLBACK_TYPE, HomeAssistant, callback
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_track_utc_time_change
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo covers."""
+    """Set up the demo cover platform."""
     async_add_entities(
         [
             DemoCover(hass, "cover_1", "Kitchen Window"),
@@ -56,25 +54,17 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoCover(CoverEntity):
     """Representation of a demo cover."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         hass: HomeAssistant,
         unique_id: str,
-        name: str,
+        device_name: str,
         position: int | None = None,
         tilt_position: int | None = None,
         device_class: CoverDeviceClass | None = None,
@@ -83,7 +73,6 @@ class DemoCover(CoverEntity):
         """Initialize the cover."""
         self.hass = hass
         self._unique_id = unique_id
-        self._attr_name = name
         self._position = position
         self._attr_device_class = device_class
         self._attr_supported_features = supported_features
@@ -101,15 +90,12 @@ class DemoCover(CoverEntity):
         else:
             self._closed = position <= 0
 
-    @property
-    def device_info(self) -> DeviceInfo:
-        """Return device info."""
-        return DeviceInfo(
+        self._attr_device_info = DeviceInfo(
             identifiers={
                 # Serial numbers are unique identifiers within a specific domain
                 (DOMAIN, self.unique_id)
             },
-            name=self.name,
+            name=device_name,
         )
 
     @property

homeassistant/components/demo/date.py

@@ -5,22 +5,19 @@ from datetime import date
 
 from homeassistant.components.date import DateEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_DEFAULT_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo date entity."""
+    """Set up the demo date platform."""
     async_add_entities(
         [
             DemoDate(
@@ -34,24 +31,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoDate(DateEntity):
     """Representation of a Demo date entity."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         state: date,
         icon: str,
         assumed_state: bool,
@@ -59,12 +48,11 @@ class DemoDate(DateEntity):
         """Initialize the Demo date entity."""
         self._attr_assumed_state = assumed_state
         self._attr_icon = icon
-        self._attr_name = name or DEVICE_DEFAULT_NAME
         self._attr_native_value = state
         self._attr_unique_id = unique_id
 
         self._attr_device_info = DeviceInfo(
-            identifiers={(DOMAIN, unique_id)}, name=self.name
+            identifiers={(DOMAIN, unique_id)}, name=device_name
         )
 
     async def async_set_value(self, value: date) -> None:

homeassistant/components/demo/datetime.py

@@ -5,22 +5,19 @@ from datetime import datetime, timezone
 
 from homeassistant.components.datetime import DateTimeEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_DEFAULT_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo date/time entity."""
+    """Set up the demo datetime platform."""
     async_add_entities(
         [
             DemoDateTime(
@@ -34,24 +31,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoDateTime(DateTimeEntity):
     """Representation of a Demo date/time entity."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         state: datetime,
         icon: str,
         assumed_state: bool,
@@ -59,7 +48,6 @@ class DemoDateTime(DateTimeEntity):
         """Initialize the Demo date/time entity."""
         self._attr_assumed_state = assumed_state
         self._attr_icon = icon
-        self._attr_name = name or DEVICE_DEFAULT_NAME
         self._attr_native_value = state
         self._attr_unique_id = unique_id
 
@@ -68,7 +56,7 @@ class DemoDateTime(DateTimeEntity):
                 # Serial numbers are unique identifiers within a specific domain
                 (DOMAIN, unique_id)
             },
-            name=self.name,
+            name=device_name,
         )
 
     async def async_set_value(self, value: datetime) -> None:

homeassistant/components/demo/light.py

@@ -20,7 +20,6 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
@@ -34,11 +33,10 @@ SUPPORT_DEMO = {ColorMode.HS, ColorMode.COLOR_TEMP}
 SUPPORT_DEMO_HS_WHITE = {ColorMode.HS, ColorMode.WHITE}
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
     """Set up the demo light platform."""
     async_add_entities(
@@ -47,28 +45,28 @@ async def async_setup_platform(
                 available=True,
                 effect_list=LIGHT_EFFECT_LIST,
                 effect=LIGHT_EFFECT_LIST[0],
-                name="Bed Light",
+                device_name="Bed Light",
                 state=False,
                 unique_id="light_1",
             ),
             DemoLight(
                 available=True,
                 ct=LIGHT_TEMPS[1],
-                name="Ceiling Lights",
+                device_name="Ceiling Lights",
                 state=True,
                 unique_id="light_2",
             ),
             DemoLight(
                 available=True,
                 hs_color=LIGHT_COLORS[1],
-                name="Kitchen Lights",
+                device_name="Kitchen Lights",
                 state=True,
                 unique_id="light_3",
             ),
             DemoLight(
                 available=True,
                 ct=LIGHT_TEMPS[1],
-                name="Office RGBW Lights",
+                device_name="Office RGBW Lights",
                 rgbw_color=(255, 0, 0, 255),
                 state=True,
                 supported_color_modes={ColorMode.RGBW},
@@ -76,7 +74,7 @@ async def async_setup_platform(
             ),
             DemoLight(
                 available=True,
-                name="Living Room RGBWW Lights",
+                device_name="Living Room RGBWW Lights",
                 rgbww_color=(255, 0, 0, 255, 0),
                 state=True,
                 supported_color_modes={ColorMode.RGBWW},
@@ -84,7 +82,7 @@ async def async_setup_platform(
             ),
             DemoLight(
                 available=True,
-                name="Entrance Color + White Lights",
+                device_name="Entrance Color + White Lights",
                 hs_color=LIGHT_COLORS[1],
                 state=True,
                 supported_color_modes=SUPPORT_DEMO_HS_WHITE,
@@ -94,24 +92,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoLight(LightEntity):
     """Representation of a demo light."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         state: bool,
         available: bool = False,
         brightness: int = 180,
@@ -130,7 +120,6 @@ class DemoLight(LightEntity):
         self._effect = effect
         self._effect_list = effect_list
         self._hs_color = hs_color
-        self._attr_name = name
         self._rgbw_color = rgbw_color
         self._rgbww_color = rgbww_color
         self._state = state
@@ -148,16 +137,12 @@ class DemoLight(LightEntity):
         self._color_modes = supported_color_modes
         if self._effect_list is not None:
             self._attr_supported_features |= LightEntityFeature.EFFECT
-
-    @property
-    def device_info(self) -> DeviceInfo:
-        """Return device info."""
-        return DeviceInfo(
+        self._attr_device_info = DeviceInfo(
             identifiers={
                 # Serial numbers are unique identifiers within a specific domain
                 (DOMAIN, self.unique_id)
             },
-            name=self.name,
+            name=device_name,
         )
 
     @property

homeassistant/components/demo/number.py

@@ -3,22 +3,20 @@ from __future__ import annotations
 
 from homeassistant.components.number import NumberDeviceClass, NumberEntity, NumberMode
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_DEFAULT_NAME, UnitOfTemperature
+from homeassistant.const import UnitOfTemperature
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the demo Number entity."""
+    """Set up the demo number platform."""
     async_add_entities(
         [
             DemoNumber(
@@ -77,24 +75,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoNumber(NumberEntity):
     """Representation of a demo Number entity."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         state: float,
         icon: str,
         assumed_state: bool,
@@ -111,7 +101,6 @@ class DemoNumber(NumberEntity):
         self._attr_device_class = device_class
         self._attr_icon = icon
         self._attr_mode = mode
-        self._attr_name = name or DEVICE_DEFAULT_NAME
         self._attr_native_unit_of_measurement = unit_of_measurement
         self._attr_native_value = state
         self._attr_unique_id = unique_id
@@ -128,7 +117,7 @@ class DemoNumber(NumberEntity):
                 # Serial numbers are unique identifiers within a specific domain
                 (DOMAIN, unique_id)
             },
-            name=self.name,
+            name=device_name,
         )
 
     async def async_set_native_value(self, value: float) -> None:

homeassistant/components/demo/select.py

@@ -3,27 +3,24 @@ from __future__ import annotations
 
 from homeassistant.components.select import SelectEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_DEFAULT_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the demo Select entity."""
+    """Set up the demo select platform."""
     async_add_entities(
         [
             DemoSelect(
                 unique_id="speed",
-                name="Speed",
+                device_name="Speed",
                 icon="mdi:speedometer",
                 current_option="ridiculous_speed",
                 options=[
@@ -37,24 +34,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoSelect(SelectEntity):
     """Representation of a demo select entity."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         icon: str,
         current_option: str | None,
         options: list[str],
@@ -62,14 +51,13 @@ class DemoSelect(SelectEntity):
     ) -> None:
         """Initialize the Demo select entity."""
         self._attr_unique_id = unique_id
-        self._attr_name = name or DEVICE_DEFAULT_NAME
         self._attr_current_option = current_option
         self._attr_icon = icon
         self._attr_options = options
         self._attr_translation_key = translation_key
         self._attr_device_info = DeviceInfo(
             identifiers={(DOMAIN, unique_id)},
-            name=name,
+            name=device_name,
         )
 
     async def async_select_option(self, option: str) -> None:

homeassistant/components/demo/sensor.py

@@ -25,18 +25,17 @@ from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_track_time_interval
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType, StateType
+from homeassistant.helpers.typing import StateType
 
 from . import DOMAIN
 
 
-async def async_setup_platform(
+async def async_setup_entry(
     hass: HomeAssistant,
-    config: ConfigType,
+    config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up the Demo sensors."""
+    """Set up the demo sensor platform."""
     async_add_entities(
         [
             DemoSensor(
@@ -126,7 +125,7 @@ async def async_setup_platform(
             ),
             DemoSensor(
                 unique_id="sensor_10",
-                name=None,
+                device_name="Thermostat",
                 state="eco",
                 device_class=SensorDeviceClass.ENUM,
                 state_class=None,
@@ -139,24 +138,16 @@ async def async_setup_platform(
     )
 
 
-async def async_setup_entry(
-    hass: HomeAssistant,
-    config_entry: ConfigEntry,
-    async_add_entities: AddEntitiesCallback,
-) -> None:
-    """Set up the Demo config entry."""
-    await async_setup_platform(hass, {}, async_add_entities)
-
-
 class DemoSensor(SensorEntity):
     """Representation of a Demo sensor."""
 
+    _attr_has_entity_name = True
     _attr_should_poll = False
 
     def __init__(
         self,
         unique_id: str,
-        name: str | None,
+        device_name: str | None,
         state: StateType,
         device_class: SensorDeviceClass,
         state_class: SensorStateClass | None,
@@ -167,10 +158,6 @@ class DemoSensor(SensorEntity):
     ) -> None:
         """Initialize the sensor."""
         self._attr_device_class = device_class
-        if name is not None:
-            self._attr_name = name
-        else:
-            self._attr_has_entity_name = True
         self._attr_native_unit_of_measurement = unit_of_measurement
         self._attr_native_value = state
         self._attr_state_class = state_class
@@ -180,7 +167,7 @@ class DemoSensor(SensorEntity):
 
         self._attr_device_info = DeviceInfo(
             identifiers={(DOMAIN, unique_id)},
-            name=name,
+            name=device_name,
         )
 
         if battery:
@@ -196,7 +183,7 @@ class DemoSumSensor(RestoreSensor):
     def __init__(
         self,
         unique_id: str,
-        name: str,
+        device_name: str,
         five_minute_increase: float,
         device_class: SensorDeviceClass,
         state_class: SensorStateClass | None,
@@ -207,7 +194,6 @@ class DemoSumSensor(RestoreSensor):
         """Initialize the sensor."""
         self.entity_id = f"{SENSOR_DOMAIN}.{suggested_entity_id}"
         self._attr_device_class = device_class
-        self._attr_name = name
         self._attr_native_unit_of_measurement = unit_of_measurement
         self._attr_native_value = 0
         self._attr_state_class = state_class
@@ -216,7 +202,7 @@ class DemoSumSensor(RestoreSensor):
 
         self._attr_device_info = DeviceInfo(
             identifiers={(DOMAIN, unique_id)},
-            name=name,
+            name=device_name,
         )
 
         if battery:

homeassistant/components/stt/legacy.py

@@ -55,7 +55,7 @@ def async_setup_legacy(
     providers = hass.data[DATA_PROVIDERS] = {}
 
     async def async_setup_platform(p_type, p_config=None, discovery_info=None):
-        """Set up a TTS platform."""
+        """Set up an STT platform."""
         if p_config is None:
             p_config = {}
 

tests/components/calendar/test_recorder.py

@@ -1,11 +1,12 @@
 """The tests for calendar recorder."""
 from datetime import timedelta
+from unittest.mock import patch
 
 import pytest
 
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -19,6 +20,16 @@ async def setup_homeassistant():
     """Override the fixture in calendar.conftest."""
 
 
+@pytest.fixture(autouse=True)
+async def calendar_only() -> None:
+    """Enable only the calendar platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.CALENDAR],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test sensor attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/camera/conftest.py

@@ -5,6 +5,7 @@ import pytest
 
 from homeassistant.components import camera
 from homeassistant.components.camera.const import StreamType
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
@@ -17,6 +18,16 @@ async def setup_homeassistant(hass: HomeAssistant):
     await async_setup_component(hass, "homeassistant", {})
 
 
+@pytest.fixture(autouse=True)
+async def camera_only() -> None:
+    """Enable only the camera platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.CAMERA],
+    ):
+        yield
+
+
 @pytest.fixture(name="mock_camera")
 async def mock_camera_fixture(hass):
     """Initialize a demo camera platform."""

tests/components/climate/test_recorder.py

@@ -2,6 +2,9 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import climate
 from homeassistant.components.climate import (
@@ -17,7 +20,7 @@ from homeassistant.components.climate import (
 )
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -26,6 +29,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def climate_only() -> None:
+    """Enable only the climate platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.CLIMATE],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test climate registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/config/test_config_entries.py

@@ -976,7 +976,7 @@ async def test_get_single(
     assert await async_setup_component(hass, "config", {})
     ws_client = await hass_ws_client(hass)
 
-    entry = MockConfigEntry(domain="demo", state=core_ce.ConfigEntryState.LOADED)
+    entry = MockConfigEntry(domain="test", state=core_ce.ConfigEntryState.LOADED)
     entry.add_to_hass(hass)
 
     assert entry.pref_disable_new_entities is False
@@ -993,7 +993,7 @@ async def test_get_single(
     assert response["success"]
     assert response["result"]["config_entry"] == {
         "disabled_by": None,
-        "domain": "demo",
+        "domain": "test",
         "entry_id": entry.entry_id,
         "pref_disable_new_entities": False,
         "pref_disable_polling": False,

tests/components/demo/conftest.py

@@ -1,4 +1,6 @@
 """demo conftest."""
+from unittest.mock import patch
+
 import pytest
 
 from homeassistant.core import HomeAssistant
@@ -16,3 +18,13 @@ def stub_blueprint_populate_autouse(stub_blueprint_populate: None) -> None:
 async def setup_homeassistant(hass: HomeAssistant):
     """Set up the homeassistant integration."""
     await async_setup_component(hass, "homeassistant", {})
+
+
+@pytest.fixture
+async def disable_platforms(hass: HomeAssistant) -> None:
+    """Disable platforms to speed up tests."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [],
+    ):
+        yield

tests/components/demo/test_button.py

@@ -5,7 +5,7 @@ from unittest.mock import patch
 import pytest
 
 from homeassistant.components.button import DOMAIN, SERVICE_PRESS
-from homeassistant.const import ATTR_ENTITY_ID, STATE_UNKNOWN
+from homeassistant.const import ATTR_ENTITY_ID, STATE_UNKNOWN, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -13,8 +13,18 @@ from homeassistant.util import dt as dt_util
 ENTITY_PUSH = "button.push"
 
 
+@pytest.fixture
+async def button_only() -> None:
+    """Enable only the button platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.BUTTON],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_button(hass: HomeAssistant) -> None:
+async def setup_demo_button(hass: HomeAssistant, button_only) -> None:
     """Initialize setup demo button entity."""
     assert await async_setup_component(hass, DOMAIN, {"button": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_camera.py

@@ -14,7 +14,7 @@ from homeassistant.components.camera import (
     async_get_image,
 )
 from homeassistant.components.demo import DOMAIN
-from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.const import ATTR_ENTITY_ID, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.setup import async_setup_component
@@ -22,8 +22,18 @@ from homeassistant.setup import async_setup_component
 ENTITY_CAMERA = "camera.demo_camera"
 
 
+@pytest.fixture
+async def camera_only() -> None:
+    """Enable only the button platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.CAMERA],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def demo_camera(hass):
+async def demo_camera(hass, camera_only):
     """Initialize a demo camera platform."""
     assert await async_setup_component(
         hass, CAMERA_DOMAIN, {CAMERA_DOMAIN: {"platform": DOMAIN}}

tests/components/demo/test_climate.py

@@ -1,4 +1,5 @@
 """The tests for the demo climate component."""
+from unittest.mock import patch
 
 import pytest
 import voluptuous as vol
@@ -40,6 +41,7 @@ from homeassistant.const import (
     SERVICE_TURN_ON,
     STATE_OFF,
     STATE_ON,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
@@ -50,8 +52,18 @@ ENTITY_ECOBEE = "climate.ecobee"
 ENTITY_HEATPUMP = "climate.heatpump"
 
 
+@pytest.fixture
+async def climate_only() -> None:
+    """Enable only the climate platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.CLIMATE],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_climate(hass):
+async def setup_demo_climate(hass, climate_only):
     """Initialize setup demo climate."""
     hass.config.units = METRIC_SYSTEM
     assert await async_setup_component(hass, DOMAIN, {"climate": {"platform": "demo"}})

tests/components/demo/test_cover.py

@@ -1,5 +1,6 @@
 """The tests for the Demo cover platform."""
 from datetime import timedelta
+from unittest.mock import patch
 
 import pytest
 
@@ -27,6 +28,7 @@ from homeassistant.const import (
     STATE_CLOSING,
     STATE_OPEN,
     STATE_OPENING,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
@@ -39,7 +41,17 @@ ENTITY_COVER = "cover.living_room_window"
 
 
 @pytest.fixture
-async def setup_comp(hass):
+async def cover_only() -> None:
+    """Enable only the climate platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.COVER],
+    ):
+        yield
+
+
+@pytest.fixture
+async def setup_comp(hass, cover_only):
     """Set up demo cover component."""
     with assert_setup_component(1, DOMAIN):
         await async_setup_component(hass, DOMAIN, CONFIG)

tests/components/demo/test_date.py

@@ -1,16 +1,28 @@
 """The tests for the demo date component."""
+from unittest.mock import patch
+
 import pytest
 
 from homeassistant.components.date import ATTR_DATE, DOMAIN, SERVICE_SET_VALUE
-from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.const import ATTR_ENTITY_ID, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
 ENTITY_DATE = "date.date"
 
 
+@pytest.fixture
+async def date_only() -> None:
+    """Enable only the date platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.DATE],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_date(hass: HomeAssistant) -> None:
+async def setup_demo_date(hass: HomeAssistant, date_only) -> None:
     """Initialize setup demo date."""
     assert await async_setup_component(hass, DOMAIN, {"date": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_datetime.py

@@ -1,16 +1,28 @@
 """The tests for the demo datetime component."""
+from unittest.mock import patch
+
 import pytest
 
 from homeassistant.components.datetime import ATTR_DATETIME, DOMAIN, SERVICE_SET_VALUE
-from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.const import ATTR_ENTITY_ID, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
 ENTITY_DATETIME = "datetime.date_and_time"
 
 
+@pytest.fixture
+async def datetime_only() -> None:
+    """Enable only the datetime platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.DATETIME],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_datetime(hass: HomeAssistant) -> None:
+async def setup_demo_datetime(hass: HomeAssistant, datetime_only) -> None:
     """Initialize setup demo datetime."""
     assert await async_setup_component(hass, DOMAIN, {"datetime": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_fan.py

@@ -32,7 +32,7 @@ PERCENTAGE_MODEL_FANS = ["fan.percentage_full_fan", "fan.percentage_limited_fan"
 
 
 @pytest.fixture(autouse=True)
-async def setup_comp(hass):
+async def setup_comp(hass, disable_platforms):
     """Initialize components."""
     assert await async_setup_component(hass, fan.DOMAIN, {"fan": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_geo_location.py

@@ -21,7 +21,7 @@ from tests.common import assert_setup_component, async_fire_time_changed
 CONFIG = {geo_location.DOMAIN: [{"platform": "demo"}]}
 
 
-async def test_setup_platform(hass: HomeAssistant) -> None:
+async def test_setup_platform(hass: HomeAssistant, disable_platforms) -> None:
     """Test setup of demo platform via configuration."""
     utcnow = dt_util.utcnow()
     # Patching 'utcnow' to gain more control over the timed update.

tests/components/demo/test_humidifier.py

@@ -30,7 +30,7 @@ ENTITY_HUMIDIFIER = "humidifier.humidifier"
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_humidifier(hass):
+async def setup_demo_humidifier(hass, disable_platforms):
     """Initialize setup demo humidifier."""
     assert await async_setup_component(
         hass, DOMAIN, {"humidifier": {"platform": "demo"}}

tests/components/demo/test_light.py

@@ -1,4 +1,6 @@
 """The tests for the demo light component."""
+from unittest.mock import patch
+
 import pytest
 
 from homeassistant.components.demo import DOMAIN
@@ -16,15 +18,25 @@ from homeassistant.components.light import (
     SERVICE_TURN_OFF,
     SERVICE_TURN_ON,
 )
-from homeassistant.const import ATTR_ENTITY_ID, STATE_OFF, STATE_ON
+from homeassistant.const import ATTR_ENTITY_ID, STATE_OFF, STATE_ON, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
 ENTITY_LIGHT = "light.bed_light"
 
 
+@pytest.fixture
+async def light_only() -> None:
+    """Enable only the light platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.LIGHT],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_comp(hass):
+async def setup_comp(hass, light_only):
     """Set up demo component."""
     assert await async_setup_component(
         hass, LIGHT_DOMAIN, {LIGHT_DOMAIN: {"platform": DOMAIN}}

tests/components/demo/test_lock.py

@@ -28,7 +28,7 @@ OPENABLE_LOCK = "lock.openable_lock"
 
 
 @pytest.fixture(autouse=True)
-async def setup_comp(hass):
+async def setup_comp(hass, disable_platforms):
     """Set up demo component."""
     assert await async_setup_component(
         hass, LOCK_DOMAIN, {LOCK_DOMAIN: {"platform": DOMAIN}}

tests/components/demo/test_media_player.py

@@ -23,6 +23,11 @@ from tests.typing import ClientSessionGenerator
 TEST_ENTITY_ID = "media_player.walkman"
 
 
+@pytest.fixture(autouse=True)
+def autouse_disable_platforms(disable_platforms):
+    """Auto use the disable_platforms fixture."""
+
+
 @pytest.fixture(name="mock_media_seek")
 def media_player_media_seek_fixture():
     """Mock demo YouTube player media seek."""

tests/components/demo/test_notify.py

@@ -16,6 +16,11 @@ from tests.common import assert_setup_component, async_capture_events
 CONFIG = {notify.DOMAIN: {"platform": "demo"}}
 
 
+@pytest.fixture(autouse=True)
+def autouse_disable_platforms(disable_platforms):
+    """Auto use the disable_platforms fixture."""
+
+
 @pytest.fixture
 def events(hass):
     """Fixture that catches notify events."""

tests/components/demo/test_number.py

@@ -1,4 +1,5 @@
 """The tests for the demo number component."""
+from unittest.mock import patch
 
 import pytest
 import voluptuous as vol
@@ -12,7 +13,7 @@ from homeassistant.components.number import (
     SERVICE_SET_VALUE,
     NumberMode,
 )
-from homeassistant.const import ATTR_ENTITY_ID, ATTR_MODE
+from homeassistant.const import ATTR_ENTITY_ID, ATTR_MODE, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
@@ -22,8 +23,18 @@ ENTITY_LARGE_RANGE = "number.large_range"
 ENTITY_SMALL_RANGE = "number.small_range"
 
 
+@pytest.fixture
+async def number_only() -> None:
+    """Enable only the number platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.NUMBER],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_number(hass):
+async def setup_demo_number(hass, number_only):
     """Initialize setup demo Number entity."""
     assert await async_setup_component(hass, DOMAIN, {"number": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_remote.py

@@ -18,7 +18,7 @@ SERVICE_SEND_COMMAND = "send_command"
 
 
 @pytest.fixture(autouse=True)
-async def setup_component(hass):
+async def setup_component(hass, disable_platforms):
     """Initialize components."""
     assert await async_setup_component(
         hass, remote.DOMAIN, {"remote": {"platform": "demo"}}

tests/components/demo/test_select.py

@@ -1,4 +1,5 @@
 """The tests for the demo select component."""
+from unittest.mock import patch
 
 import pytest
 
@@ -8,15 +9,25 @@ from homeassistant.components.select import (
     DOMAIN,
     SERVICE_SELECT_OPTION,
 )
-from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.const import ATTR_ENTITY_ID, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
 ENTITY_SPEED = "select.speed"
 
 
+@pytest.fixture
+async def select_only() -> None:
+    """Enable only the select platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.SELECT],
+    ):
+        yield
+
+
 @pytest.fixture(autouse=True)
-async def setup_demo_select(hass: HomeAssistant) -> None:
+async def setup_demo_select(hass: HomeAssistant, select_only) -> None:
     """Initialize setup demo select entity."""
     assert await async_setup_component(hass, DOMAIN, {"select": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_sensor.py

@@ -1,5 +1,6 @@
 """The tests for the demo sensor component."""
 from datetime import timedelta
+from unittest.mock import patch
 
 from freezegun.api import FrozenDateTimeFactory
 import pytest
@@ -7,12 +8,23 @@ import pytest
 from homeassistant import core as ha
 from homeassistant.components.demo import DOMAIN
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
 from tests.common import mock_restore_cache_with_extra_data
 
 
+@pytest.fixture(autouse=True)
+async def sensor_only() -> None:
+    """Enable only the sensor platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.SENSOR],
+    ):
+        yield
+
+
 @pytest.mark.parametrize(("entity_id", "delta"), (("sensor.total_energy_kwh", 0.5),))
 async def test_energy_sensor(
     hass: HomeAssistant, entity_id, delta, freezer: FrozenDateTimeFactory

tests/components/demo/test_siren.py

@@ -25,7 +25,7 @@ ENTITY_SIREN_WITH_ALL_FEATURES = "siren.siren_with_all_features"
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_siren(hass):
+async def setup_demo_siren(hass, disable_platforms):
     """Initialize setup demo siren."""
     assert await async_setup_component(hass, DOMAIN, {"siren": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_switch.py

@@ -15,7 +15,7 @@ SWITCH_ENTITY_IDS = ["switch.decorative_lights", "switch.ac"]
 
 
 @pytest.fixture(autouse=True)
-async def setup_comp(hass):
+async def setup_comp(hass, disable_platforms):
     """Set up demo component."""
     assert await async_setup_component(
         hass, SWITCH_DOMAIN, {SWITCH_DOMAIN: {"platform": DOMAIN}}

tests/components/demo/test_text.py

@@ -17,7 +17,7 @@ ENTITY_TEXT = "text.text"
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_text(hass):
+async def setup_demo_text(hass, disable_platforms):
     """Initialize setup demo text."""
     assert await async_setup_component(hass, DOMAIN, {"text": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_time.py

@@ -10,7 +10,7 @@ ENTITY_TIME = "time.time"
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_datetime(hass: HomeAssistant) -> None:
+async def setup_demo_datetime(hass: HomeAssistant, disable_platforms) -> None:
     """Initialize setup demo time."""
     assert await async_setup_component(hass, DOMAIN, {"time": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_update.py

@@ -27,7 +27,7 @@ from homeassistant.setup import async_setup_component
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_update(hass: HomeAssistant) -> None:
+async def setup_demo_update(hass: HomeAssistant, disable_platforms) -> None:
     """Initialize setup demo update entity."""
     assert await async_setup_component(hass, DOMAIN, {"update": {"platform": "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_vacuum.py

@@ -52,7 +52,7 @@ ENTITY_VACUUM_STATE = f"{DOMAIN}.{DEMO_VACUUM_STATE}".lower()
 
 
 @pytest.fixture(autouse=True)
-async def setup_demo_vacuum(hass):
+async def setup_demo_vacuum(hass, disable_platforms):
     """Initialize setup demo vacuum."""
     assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "demo"}})
     await hass.async_block_till_done()

tests/components/demo/test_water_heater.py

@@ -14,7 +14,7 @@ ENTITY_WATER_HEATER_CELSIUS = "water_heater.demo_water_heater_celsius"
 
 
 @pytest.fixture(autouse=True)
-async def setup_comp(hass):
+async def setup_comp(hass, disable_platforms):
     """Set up demo component."""
     hass.config.units = US_CUSTOMARY_SYSTEM
     assert await async_setup_component(

tests/components/demo/test_weather.py

@@ -20,7 +20,7 @@ from homeassistant.setup import async_setup_component
 from homeassistant.util.unit_system import METRIC_SYSTEM
 
 
-async def test_attributes(hass: HomeAssistant) -> None:
+async def test_attributes(hass: HomeAssistant, disable_platforms) -> None:
     """Test weather attributes."""
     assert await async_setup_component(
         hass, weather.DOMAIN, {"weather": {"platform": "demo"}}

tests/components/emulated_hue/test_hue_api.py

@@ -135,8 +135,25 @@ async def base_setup(hass):
     )
 
 
+@pytest.fixture(autouse=True)
+async def wanted_platforms_only() -> None:
+    """Enable only the wanted demo platforms."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [
+            const.Platform.CLIMATE,
+            const.Platform.COVER,
+            const.Platform.FAN,
+            const.Platform.HUMIDIFIER,
+            const.Platform.LIGHT,
+            const.Platform.MEDIA_PLAYER,
+        ],
+    ):
+        yield
+
+
 @pytest.fixture
-async def demo_setup(hass):
+async def demo_setup(hass, wanted_platforms_only):
     """Fixture to setup demo platforms."""
     # We need to do this to get access to homeassistant/turn_(on,off)
     setups = [
@@ -144,12 +161,7 @@ async def demo_setup(hass):
         setup.async_setup_component(
             hass, http.DOMAIN, {http.DOMAIN: {http.CONF_SERVER_PORT: HTTP_SERVER_PORT}}
         ),
-        *[
-            setup.async_setup_component(
-                hass, comp.DOMAIN, {comp.DOMAIN: [{"platform": "demo"}]}
-            )
-            for comp in (light, climate, humidifier, media_player, fan, cover)
-        ],
+        setup.async_setup_component(hass, "demo", {}),
         setup.async_setup_component(
             hass,
             script.DOMAIN,

tests/components/fan/test_recorder.py

@@ -2,12 +2,15 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import fan
 from homeassistant.components.fan import ATTR_PRESET_MODES
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -16,6 +19,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def fan_only() -> None:
+    """Enable only the fan platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.FAN],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test fan registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/google_assistant/test_diagnostics.py

@@ -1,8 +1,11 @@
 """Test diagnostics."""
-from unittest.mock import ANY
+from unittest.mock import ANY, patch
+
+import pytest
 
 from homeassistant import setup
 from homeassistant.components import google_assistant as ga, switch
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
@@ -12,6 +15,16 @@ from tests.components.diagnostics import get_diagnostics_for_config_entry
 from tests.typing import ClientSessionGenerator
 
 
+@pytest.fixture(autouse=True)
+async def switch_only() -> None:
+    """Enable only the switch platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.SWITCH],
+    ):
+        yield
+
+
 async def test_diagnostics(
     hass: HomeAssistant, hass_client: ClientSessionGenerator
 ) -> None:

tests/components/google_assistant/test_google_assistant.py

@@ -1,26 +1,22 @@
 """The tests for the Google Assistant component."""
 from http import HTTPStatus
 import json
+from unittest.mock import patch
 
 from aiohttp.hdrs import AUTHORIZATION
 import pytest
 
 from homeassistant import const, core, setup
 from homeassistant.components import (
-    alarm_control_panel,
-    climate,
-    cover,
-    fan,
     google_assistant as ga,
     humidifier,
     light,
-    lock,
     media_player,
-    switch,
 )
 from homeassistant.const import (
     CLOUD_NEVER_EXPOSED_ENTITIES,
     EntityCategory,
+    Platform,
     UnitOfTemperature,
 )
 from homeassistant.helpers import entity_registry as er
@@ -65,6 +61,26 @@ def assistant_client(event_loop, hass, hass_client_no_auth):
     return loop.run_until_complete(hass_client_no_auth())
 
 
+@pytest.fixture(autouse=True)
+async def wanted_platforms_only() -> None:
+    """Enable only the wanted demo platforms."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [
+            Platform.ALARM_CONTROL_PANEL,
+            Platform.CLIMATE,
+            Platform.COVER,
+            Platform.FAN,
+            Platform.HUMIDIFIER,
+            Platform.LIGHT,
+            Platform.LOCK,
+            Platform.MEDIA_PLAYER,
+            Platform.SWITCH,
+        ],
+    ):
+        yield
+
+
 @pytest.fixture
 def hass_fixture(event_loop, hass):
     """Set up a Home Assistant instance for these tests."""
@@ -73,55 +89,7 @@ def hass_fixture(event_loop, hass):
     # We need to do this to get access to homeassistant/turn_(on,off)
     loop.run_until_complete(setup.async_setup_component(hass, core.DOMAIN, {}))
 
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, light.DOMAIN, {"light": [{"platform": "demo"}]}
-        )
-    )
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, switch.DOMAIN, {"switch": [{"platform": "demo"}]}
-        )
-    )
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, cover.DOMAIN, {"cover": [{"platform": "demo"}]}
-        )
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, media_player.DOMAIN, {"media_player": [{"platform": "demo"}]}
-        )
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(hass, fan.DOMAIN, {"fan": [{"platform": "demo"}]})
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, climate.DOMAIN, {"climate": [{"platform": "demo"}]}
-        )
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass, humidifier.DOMAIN, {"humidifier": [{"platform": "demo"}]}
-        )
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(hass, lock.DOMAIN, {"lock": [{"platform": "demo"}]})
-    )
-
-    loop.run_until_complete(
-        setup.async_setup_component(
-            hass,
-            alarm_control_panel.DOMAIN,
-            {"alarm_control_panel": [{"platform": "demo"}]},
-        )
-    )
+    loop.run_until_complete(setup.async_setup_component(hass, "demo", {}))
 
     return hass
 

tests/components/google_assistant/test_smart_home.py

@@ -22,7 +22,12 @@ from homeassistant.components.google_assistant import (
     trait,
 )
 from homeassistant.config import async_process_ha_core_config
-from homeassistant.const import ATTR_UNIT_OF_MEASUREMENT, UnitOfTemperature, __version__
+from homeassistant.const import (
+    ATTR_UNIT_OF_MEASUREMENT,
+    Platform,
+    UnitOfTemperature,
+    __version__,
+)
 from homeassistant.core import EVENT_CALL_SERVICE, HomeAssistant, State
 from homeassistant.helpers import (
     area_registry as ar,
@@ -39,6 +44,16 @@ from tests.common import async_capture_events
 REQ_ID = "ff36a3cc-ec34-11e6-b1a0-64510650abcf"
 
 
+@pytest.fixture
+async def light_only() -> None:
+    """Enable only the light platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.LIGHT],
+    ):
+        yield
+
+
 @pytest.fixture
 def registries(
     entity_registry: er.EntityRegistry,
@@ -128,6 +143,8 @@ async def test_sync_message(hass: HomeAssistant, registries) -> None:
     )
     light.hass = hass
     light.entity_id = "light.demo_light"
+    light._attr_device_info = None
+    light._attr_name = "Demo Light"
     light.async_write_ha_state()
 
     # This should not show up in the sync request
@@ -268,6 +285,8 @@ async def test_sync_in_area(area_on_device, hass: HomeAssistant, registries) ->
     )
     light.hass = hass
     light.entity_id = entity.entity_id
+    light._attr_device_info = None
+    light._attr_name = "Demo Light"
     light.async_write_ha_state()
 
     config = MockConfig(should_expose=lambda _: True, entity_config={})
@@ -360,6 +379,8 @@ async def test_query_message(hass: HomeAssistant) -> None:
     )
     light.hass = hass
     light.entity_id = "light.demo_light"
+    light._attr_device_info = None
+    light._attr_name = "Demo Light"
     light.async_write_ha_state()
 
     light2 = DemoLight(
@@ -367,11 +388,15 @@ async def test_query_message(hass: HomeAssistant) -> None:
     )
     light2.hass = hass
     light2.entity_id = "light.another_light"
+    light2._attr_device_info = None
+    light2._attr_name = "Another Light"
     light2.async_write_ha_state()
 
     light3 = DemoLight(None, "Color temp Light", state=True, ct=400, brightness=200)
     light3.hass = hass
     light3.entity_id = "light.color_temp_light"
+    light3._attr_device_info = None
+    light3._attr_name = "Color temp Light"
     light3.async_write_ha_state()
 
     events = async_capture_events(hass, EVENT_QUERY_RECEIVED)
@@ -448,7 +473,7 @@ async def test_query_message(hass: HomeAssistant) -> None:
     [(False, True, 20, 0.2), (True, ANY, ANY, ANY)],
 )
 async def test_execute(
-    hass: HomeAssistant, report_state, on, brightness, value
+    hass: HomeAssistant, light_only, report_state, on, brightness, value
 ) -> None:
     """Test an execute command."""
     await async_setup_component(hass, "homeassistant", {})
@@ -630,7 +655,7 @@ async def test_execute(
     ("report_state", "on", "brightness", "value"), [(False, False, ANY, ANY)]
 )
 async def test_execute_times_out(
-    hass: HomeAssistant, report_state, on, brightness, value
+    hass: HomeAssistant, light_only, report_state, on, brightness, value
 ) -> None:
     """Test an execute command which times out."""
     orig_execute_limit = sh.EXECUTE_LIMIT
@@ -933,6 +958,8 @@ async def test_unavailable_state_does_sync(hass: HomeAssistant) -> None:
     light.hass = hass
     light.entity_id = "light.demo_light"
     light._available = False
+    light._attr_device_info = None
+    light._attr_name = "Demo Light"
     light.async_write_ha_state()
 
     events = async_capture_events(hass, EVENT_SYNC_RECEIVED)
@@ -1074,6 +1101,8 @@ async def test_device_class_binary_sensor(
     )
     sensor.hass = hass
     sensor.entity_id = "binary_sensor.demo_sensor"
+    sensor._attr_device_info = None
+    sensor._attr_name = "Demo Sensor"
     sensor.async_write_ha_state()
 
     result = await sh.async_handle_message(
@@ -1125,6 +1154,8 @@ async def test_device_class_cover(
     sensor = DemoCover(None, hass, "Demo Sensor", device_class=device_class)
     sensor.hass = hass
     sensor.entity_id = "cover.demo_sensor"
+    sensor._attr_device_info = None
+    sensor._attr_name = "Demo Sensor"
     sensor.async_write_ha_state()
 
     result = await sh.async_handle_message(
@@ -1456,6 +1487,8 @@ async def test_sync_message_recovery(
     )
     light.hass = hass
     light.entity_id = "light.demo_light"
+    light._attr_device_info = None
+    light._attr_name = "Demo Light"
     light.async_write_ha_state()
 
     hass.states.async_set(

tests/components/light/test_recorder.py

@@ -2,6 +2,9 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import light
 from homeassistant.components.light import (
@@ -14,7 +17,7 @@ from homeassistant.components.light import (
 )
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -23,6 +26,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def light_only() -> None:
+    """Enable only the light platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.LIGHT],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test light registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/media_player/test_recorder.py

@@ -2,6 +2,9 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import media_player
 from homeassistant.components.media_player import (
@@ -13,7 +16,7 @@ from homeassistant.components.media_player import (
 )
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_ENTITY_PICTURE, ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_ENTITY_PICTURE, ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -22,6 +25,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def media_player_only() -> None:
+    """Enable only the media_player platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.MEDIA_PLAYER],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test media_player registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/number/test_recorder.py

@@ -2,12 +2,15 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import number
 from homeassistant.components.number import ATTR_MAX, ATTR_MIN, ATTR_MODE, ATTR_STEP
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -16,6 +19,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def number_only() -> None:
+    """Enable only the number platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.NUMBER],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test number registered attributes to be excluded."""
     assert await async_setup_component(hass, "homeassistant", {})

tests/components/select/test_recorder.py

@@ -2,12 +2,15 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import select
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
 from homeassistant.components.select import ATTR_OPTIONS
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -16,6 +19,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def select_only() -> None:
+    """Enable only the select platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.SELECT],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test select registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/text/test_recorder.py

@@ -2,12 +2,15 @@
 from __future__ import annotations
 
 from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components import text
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.recorder.history import get_significant_states
 from homeassistant.components.text import ATTR_MAX, ATTR_MIN, ATTR_MODE, ATTR_PATTERN
-from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.const import ATTR_FRIENDLY_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
@@ -16,6 +19,16 @@ from tests.common import async_fire_time_changed
 from tests.components.recorder.common import async_wait_recording_done
 
 
+@pytest.fixture(autouse=True)
+async def text_only() -> None:
+    """Enable only the text platform."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [Platform.TEXT],
+    ):
+        yield
+
+
 async def test_exclude_attributes(recorder_mock: Recorder, hass: HomeAssistant) -> None:
     """Test siren registered attributes to be excluded."""
     now = dt_util.utcnow()

tests/components/tts/test_notify.py

@@ -1,7 +1,9 @@
 """The tests for the TTS component."""
+from unittest.mock import patch
+
 import pytest
 
-from homeassistant.components import media_player, notify, tts
+from homeassistant.components import notify, tts
 from homeassistant.components.media_player import (
     DOMAIN as DOMAIN_MP,
     SERVICE_PLAY_MEDIA,
@@ -24,6 +26,16 @@ async def internal_url_mock(hass: HomeAssistant) -> None:
     )
 
 
+@pytest.fixture(autouse=True)
+async def disable_platforms() -> None:
+    """Disable demo platforms."""
+    with patch(
+        "homeassistant.components.demo.COMPONENTS_WITH_CONFIG_ENTRY_DEMO_PLATFORM",
+        [],
+    ):
+        yield
+
+
 async def test_setup_legacy_platform(hass: HomeAssistant) -> None:
     """Set up the tts notify platform ."""
     config = {
@@ -62,7 +74,6 @@ async def test_setup_legacy_service(hass: HomeAssistant) -> None:
 
     config = {
         tts.DOMAIN: {"platform": "demo"},
-        media_player.DOMAIN: {"platform": "demo"},
         notify.DOMAIN: {
             "platform": "tts",
             "name": "tts_test",