Do not fail MQTT setup if buttons configured via yaml can't be validated (#102301)

homeassistant/components/mqtt/button.py

@@ -1,8 +1,6 @@
 """Support for MQTT buttons."""
 from __future__ import annotations
 
-import functools
-
 import voluptuous as vol
 
 from homeassistant.components import button
@@ -12,7 +10,7 @@ from homeassistant.const import CONF_DEVICE_CLASS, CONF_NAME
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
+from homeassistant.helpers.typing import ConfigType
 
 from .config import DEFAULT_RETAIN, MQTT_BASE_SCHEMA
 from .const import (
@@ -22,7 +20,7 @@ from .const import (
     CONF_QOS,
     CONF_RETAIN,
 )
-from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
+from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_mqtt_entry_helper
 from .models import MqttCommandTemplate
 from .util import valid_publish_topic
 
@@ -50,21 +48,15 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up MQTT button through YAML and through MQTT discovery."""
-    setup = functools.partial(
+    await async_mqtt_entry_helper(
-        _async_setup_entity, hass, async_add_entities, config_entry=config_entry
+        hass,
+        config_entry,
+        MqttButton,
+        button.DOMAIN,
+        async_add_entities,
+        DISCOVERY_SCHEMA,
+        PLATFORM_SCHEMA_MODERN,
     )
-    await async_setup_entry_helper(hass, button.DOMAIN, setup, DISCOVERY_SCHEMA)
-
-
-async def _async_setup_entity(
-    hass: HomeAssistant,
-    async_add_entities: AddEntitiesCallback,
-    config: ConfigType,
-    config_entry: ConfigEntry,
-    discovery_data: DiscoveryInfoType | None = None,
-) -> None:
-    """Set up the MQTT button."""
-    async_add_entities([MqttButton(hass, config, config_entry, discovery_data)])
 
 
 class MqttButton(MqttEntity, ButtonEntity):

homeassistant/components/mqtt/config_integration.py

@@ -15,7 +15,6 @@ from homeassistant.const import (
 from homeassistant.helpers import config_validation as cv
 
 from . import (
-    button as button_platform,
     cover as cover_platform,
     event as event_platform,
     number as number_platform,
@@ -41,10 +40,7 @@ CONFIG_SCHEMA_BASE = vol.Schema(
     {
         Platform.ALARM_CONTROL_PANEL.value: vol.All(cv.ensure_list, [dict]),
         Platform.BINARY_SENSOR.value: vol.All(cv.ensure_list, [dict]),
-        Platform.BUTTON.value: vol.All(
+        Platform.BUTTON.value: vol.All(cv.ensure_list, [dict]),
-            cv.ensure_list,
-            [button_platform.PLATFORM_SCHEMA_MODERN],  # type: ignore[has-type]
-        ),
         Platform.CAMERA.value: vol.All(cv.ensure_list, [dict]),
         Platform.CLIMATE.value: vol.All(cv.ensure_list, [dict]),
         Platform.COVER.value: vol.All(

tests/components/mqtt/test_button.py

@@ -456,8 +456,7 @@ async def test_invalid_device_class(
     caplog: pytest.LogCaptureFixture,
 ) -> None:
     """Test device_class option with invalid value."""
-    with pytest.raises(AssertionError):
+    assert await mqtt_mock_entry()
-        await mqtt_mock_entry()
     assert "expected ButtonDeviceClass" in caplog.text