Support dynamic schema validation in device conditions and actions (#52007)

* Allow integrations to provide dynamic schema validation in device conditions and actions

* Add tests

* re-add type

* mypy

tests/helpers/test_condition.py

@@ -1,13 +1,20 @@
 """Test the condition helper."""
 from datetime import datetime
-from unittest.mock import patch
+from unittest.mock import AsyncMock, patch
 
 import pytest
 
 from homeassistant.components import sun
 import homeassistant.components.automation as automation
 from homeassistant.components.sensor import DEVICE_CLASS_TIMESTAMP
-from homeassistant.const import ATTR_DEVICE_CLASS, SUN_EVENT_SUNRISE, SUN_EVENT_SUNSET
+from homeassistant.const import (
+    ATTR_DEVICE_CLASS,
+    CONF_CONDITION,
+    CONF_DEVICE_ID,
+    CONF_DOMAIN,
+    SUN_EVENT_SUNRISE,
+    SUN_EVENT_SUNSET,
+)
 from homeassistant.exceptions import ConditionError, HomeAssistantError
 from homeassistant.helpers import condition, trace
 from homeassistant.helpers.template import Template
@@ -2843,3 +2850,16 @@ async def test_trigger(hass):
     assert not test(hass, {"other_var": "123456"})
     assert not test(hass, {"trigger": {"trigger_id": "123456"}})
     assert test(hass, {"trigger": {"id": "123456"}})
+
+
+async def test_platform_async_validate_condition_config(hass):
+    """Test platform.async_validate_condition_config will be called if it exists."""
+    config = {CONF_DEVICE_ID: "test", CONF_DOMAIN: "test", CONF_CONDITION: "device"}
+    platform = AsyncMock()
+    with patch(
+        "homeassistant.helpers.condition.async_get_device_automation_platform",
+        return_value=platform,
+    ):
+        platform.async_validate_condition_config.return_value = config
+        await condition.async_validate_condition_config(hass, config)
+        platform.async_validate_condition_config.assert_awaited()