Use setup_test_component_platform helper for date entity component tests instead of hass.components (#114413)

* Use `setup_test_component_platform` helper for date entity component tests instead of `hass.components`

* Remove missing

tests/components/date/common.py

@@ -0,0 +1,20 @@
+"""Common helpers for date entity component tests."""
+
+from datetime import date
+
+from homeassistant.components.date import DateEntity
+
+from tests.common import MockEntity
+
+
+class MockDateEntity(MockEntity, DateEntity):
+    """Mock date class."""
+
+    @property
+    def native_value(self):
+        """Return the native value of this date."""
+        return self._handle("native_value")
+
+    def set_value(self, value: date) -> None:
+        """Change the date."""
+        self._values["native_value"] = value

tests/components/date/test_init.py

@@ -2,7 +2,7 @@
 
 from datetime import date
 
-from homeassistant.components.date import DOMAIN, SERVICE_SET_VALUE, DateEntity
+from homeassistant.components.date import DOMAIN, SERVICE_SET_VALUE
 from homeassistant.const import (
     ATTR_DATE,
     ATTR_ENTITY_ID,
@@ -12,25 +12,18 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
-
-class MockDateEntity(DateEntity):
-    """Mock date device to use in tests."""
-
-    _attr_name = "date"
-
-    def __init__(self, native_value=date(2020, 1, 1)) -> None:
-        """Initialize mock date entity."""
-        self._attr_native_value = native_value
-
-    async def async_set_value(self, value: date) -> None:
-        """Set the value of the date."""
-        self._attr_native_value = value
+from tests.common import setup_test_component_platform
+from tests.components.date.common import MockDateEntity
 
 
-async def test_date(hass: HomeAssistant, enable_custom_integrations: None) -> None:
+async def test_date(hass: HomeAssistant) -> None:
     """Test date entity."""
-    platform = getattr(hass.components, f"test.{DOMAIN}")
-    platform.init()
+    entity = MockDateEntity(
+        name="test",
+        unique_id="unique_date",
+        native_value=date(2020, 1, 1),
+    )
+    setup_test_component_platform(hass, DOMAIN, [entity])
 
     assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
     await hass.async_block_till_done()

tests/testing_config/custom_components/test/date.py

@@ -1,51 +0,0 @@
-"""Provide a mock date platform.
-
-Call init before using it in your tests to ensure clean test data.
-"""
-
-from datetime import date
-
-from homeassistant.components.date import DateEntity
-
-from tests.common import MockEntity
-
-UNIQUE_DATE = "unique_date"
-
-ENTITIES = []
-
-
-class MockDateEntity(MockEntity, DateEntity):
-    """Mock date class."""
-
-    @property
-    def native_value(self):
-        """Return the native value of this date."""
-        return self._handle("native_value")
-
-    def set_value(self, value: date) -> None:
-        """Change the date."""
-        self._values["native_value"] = value
-
-
-def init(empty=False):
-    """Initialize the platform with entities."""
-    global ENTITIES
-
-    ENTITIES = (
-        []
-        if empty
-        else [
-            MockDateEntity(
-                name="test",
-                unique_id=UNIQUE_DATE,
-                native_value=date(2020, 1, 1),
-            ),
-        ]
-    )
-
-
-async def async_setup_platform(
-    hass, config, async_add_entities_callback, discovery_info=None
-):
-    """Return mock entities."""
-    async_add_entities_callback(ENTITIES)