Add tests for KNX scene (#58900)

tests/components/knx/test_scene.py

@@ -0,0 +1,44 @@
+"""Test KNX scene."""
+
+from homeassistant.components.knx.const import KNX_ADDRESS
+from homeassistant.components.knx.schema import SceneSchema
+from homeassistant.const import (
+    CONF_ENTITY_CATEGORY,
+    CONF_NAME,
+    ENTITY_CATEGORY_DIAGNOSTIC,
+)
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_registry import (
+    async_get_registry as async_get_entity_registry,
+)
+
+from .conftest import KNXTestKit
+
+
+async def test_activate_knx_scene(hass: HomeAssistant, knx: KNXTestKit):
+    """Test KNX scene."""
+    await knx.setup_integration(
+        {
+            SceneSchema.PLATFORM_NAME: [
+                {
+                    CONF_NAME: "test",
+                    SceneSchema.CONF_SCENE_NUMBER: 24,
+                    KNX_ADDRESS: "1/1/1",
+                    CONF_ENTITY_CATEGORY: ENTITY_CATEGORY_DIAGNOSTIC,
+                },
+            ]
+        }
+    )
+    assert len(hass.states.async_all()) == 1
+
+    registry = await async_get_entity_registry(hass)
+    entity = registry.async_get("scene.test")
+    assert entity.entity_category == ENTITY_CATEGORY_DIAGNOSTIC
+    assert entity.unique_id == "1/1/1_24"
+
+    await hass.services.async_call(
+        "scene", "turn_on", {"entity_id": "scene.test"}, blocking=True
+    )
+
+    # assert scene was called on bus
+    await knx.assert_write("1/1/1", (0x17,))