New Events and Context Fixes (#18765)

* Add new events for automation trigger and script run, fix context for image processing, add tests to ensure same context

* remove custom logbook entry for automation and add new automation event to logbook

* code review updates

tests/components/test_script.py

@@ -1,15 +1,16 @@
 """The tests for the Script component."""
 # pylint: disable=protected-access
 import unittest
-from unittest.mock import patch
+from unittest.mock import patch, Mock
 
 from homeassistant.components import script
 from homeassistant.components.script import DOMAIN
 from homeassistant.const import (
-    ATTR_ENTITY_ID, SERVICE_RELOAD, SERVICE_TOGGLE, SERVICE_TURN_OFF)
+    ATTR_ENTITY_ID, ATTR_NAME, SERVICE_RELOAD, SERVICE_TOGGLE,
+    SERVICE_TURN_OFF, SERVICE_TURN_ON, EVENT_SCRIPT_STARTED)
 from homeassistant.core import Context, callback, split_entity_id
 from homeassistant.loader import bind_hass
-from homeassistant.setup import setup_component
+from homeassistant.setup import setup_component, async_setup_component
 
 from tests.common import get_test_home_assistant
 
@@ -254,3 +255,48 @@ class TestScriptComponent(unittest.TestCase):
 
         assert self.hass.states.get("script.test2") is not None
         assert self.hass.services.has_service(script.DOMAIN, 'test2')
+
+
+async def test_shared_context(hass):
+    """Test that the shared context is passed down the chain."""
+    event = 'test_event'
+    context = Context()
+
+    event_mock = Mock()
+    run_mock = Mock()
+
+    hass.bus.async_listen(event, event_mock)
+    hass.bus.async_listen(EVENT_SCRIPT_STARTED, run_mock)
+
+    assert await async_setup_component(hass, 'script', {
+        'script': {
+            'test': {
+                'sequence': [
+                    {'event': event}
+                ]
+            }
+        }
+    })
+
+    await hass.services.async_call(DOMAIN, SERVICE_TURN_ON,
+                                   {ATTR_ENTITY_ID: ENTITY_ID},
+                                   context=context)
+    await hass.async_block_till_done()
+
+    assert event_mock.call_count == 1
+    assert run_mock.call_count == 1
+
+    args, kwargs = run_mock.call_args
+    assert args[0].context == context
+    # Ensure event data has all attributes set
+    assert args[0].data.get(ATTR_NAME) == 'test'
+    assert args[0].data.get(ATTR_ENTITY_ID) == 'script.test'
+
+    # Ensure context carries through the event
+    args, kwargs = event_mock.call_args
+    assert args[0].context == context
+
+    # Ensure the script state shares the same context
+    state = hass.states.get('script.test')
+    assert state is not None
+    assert state.context == context