Add event entity (#96797)

tests/testing_config/custom_components/test/event.py

@@ -0,0 +1,42 @@
+"""Provide a mock event platform.
+
+Call init before using it in your tests to ensure clean test data.
+"""
+from homeassistant.components.event import EventEntity
+
+from tests.common import MockEntity
+
+ENTITIES = []
+
+
+class MockEventEntity(MockEntity, EventEntity):
+    """Mock EventEntity class."""
+
+    @property
+    def event_types(self) -> list[str]:
+        """Return a list of possible events."""
+        return self._handle("event_types")
+
+
+def init(empty=False):
+    """Initialize the platform with entities."""
+    global ENTITIES
+
+    ENTITIES = (
+        []
+        if empty
+        else [
+            MockEventEntity(
+                name="doorbell",
+                unique_id="unique_doorbell",
+                event_types=["short_press", "long_press"],
+            ),
+        ]
+    )
+
+
+async def async_setup_platform(
+    hass, config, async_add_entities_callback, discovery_info=None
+):
+    """Return mock entities."""
+    async_add_entities_callback(ENTITIES)