amoghrajesh commented on code in PR #67839:
URL: https://github.com/apache/airflow/pull/67839#discussion_r3388013386


##########
airflow-core/src/airflow/jobs/triggerer_job_runner.py:
##########
@@ -1286,6 +1293,16 @@ async def create_triggers(self):
             trigger_instance.triggerer_job_id = self.job_id
             trigger_instance.timeout_after = workload.timeout_after
 
+            if isinstance(trigger_instance, BaseEventTrigger) and 
workload.watched_assets:
+                # Reconstruct AssetStateAccessors from watched_assets
+                from airflow.sdk.definitions.asset import Asset
+                from airflow.sdk.execution_time.context import 
AssetStoreAccessors

Review Comment:
   Is there a need to have these imports inside here? Circular import or such



##########
airflow-core/src/airflow/jobs/triggerer_job_runner.py:
##########
@@ -1286,6 +1293,16 @@ async def create_triggers(self):
             trigger_instance.triggerer_job_id = self.job_id
             trigger_instance.timeout_after = workload.timeout_after
 
+            if isinstance(trigger_instance, BaseEventTrigger) and 
workload.watched_assets:
+                # Reconstruct AssetStateAccessors from watched_assets
+                from airflow.sdk.definitions.asset import Asset
+                from airflow.sdk.execution_time.context import 
AssetStoreAccessors
+
+                # Potentially address Asset vs. AssetRef, AssetUriRef, etc.

Review Comment:
   This has to be done?



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):

Review Comment:
   For all tests added, please use any Mocks with `spec`, `spec=Asset` or 
`create_autospec(Asset)` whatever deems right



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):

Review Comment:
   Tests verify that `asset_store` is injected and is an `AssetStoreAccessors` 
instance, but none of them verify that it actually reads or writes, we should 
add those



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):
+    """_create_workload() should populate watched_assets when 
trigger.task_instance is None and assets exist."""
+    asset1 = mocker.Mock()
+    asset1.name = "my_asset"
+    asset1.uri = "s3://bucket/key"
+
+    asset2 = mocker.Mock()
+    asset2.name = "other_asset"
+    asset2.uri = "gs://bucket/path"
+
+    trigger = mocker.Mock()
+    trigger.id = 42
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None  # Not tied to a Task (similar to a 
BaseEventTrigger)
+    trigger.assets = [asset1, asset2]
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets == {"my_asset": "s3://bucket/key", 
"other_asset": "gs://bucket/path"}
+
+
+def 
test_create_workload_watched_assets_none_when_no_assets(jobless_supervisor, 
mocker):
+    """_create_workload() should set watched_assets=None when 
trigger.task_instance is None and assets is empty."""
+    trigger = mocker.Mock()
+    trigger.id = 43
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None
+    trigger.assets = []  # No Assets are attached to the trigger
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets is None
+
+
+def test_run_trigger_workload_includes_watched_assets_field():
+    """RunTrigger workload should accept and store watched_assets."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+        watched_assets={"asset_a": "s3://a", "asset_b": "gs://b"},
+    )
+    assert workload.watched_assets == {"asset_a": "s3://a", "asset_b": 
"gs://b"}
+
+
+def test_run_trigger_workload_watched_assets_defaults_to_none():
+    """RunTrigger workload watched_assets should default to None."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+    )
+    assert workload.watched_assets is None
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_injects_asset_store_for_base_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store is populated on BaseEventTrigger instances when 
watched_assets is set."""
+    from airflow.sdk.execution_time.context import AssetStoreAccessors
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent
+
+    injected_instances = []
+
+    class _WatcherTrigger(BaseEventTrigger):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+            injected_instances.append(self)
+
+        def serialize(self):
+            return (f"{type(self).__module__}.{type(self).__qualname__}", {})
+
+        async def run(self):
+            yield TriggerEvent("done")
+
+    mock_get_classpath.return_value = _WatcherTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=10,
+            ti=None,
+            classpath="fake.WatcherTrigger",
+            encrypted_kwargs="fake",
+            watched_assets={"my_asset": "s3://bucket/key"},
+        )
+    )
+
+    await runner.create_triggers()
+
+    # This is only testing that an exception was NOT thrown when creating the 
Trigger
+    assert 10 in runner.triggers
+
+    assert len(injected_instances) == 1
+    assert injected_instances[0].asset_store is not None
+    assert isinstance(injected_instances[0].asset_store, AssetStoreAccessors)
+
+    runner.triggers[10]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_asset_store_none_when_no_watched_assets(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store stays None when watched_assets is not set on the 
workload."""
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent
+
+    injected_instances = []
+
+    class _WatcherTrigger(BaseEventTrigger):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+            injected_instances.append(self)
+
+        def serialize(self):
+            return (f"{type(self).__module__}.{type(self).__qualname__}", {})
+
+        async def run(self):
+            yield TriggerEvent("done")
+
+    mock_get_classpath.return_value = _WatcherTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=11,
+            ti=None,
+            classpath="fake.WatcherTrigger",
+            encrypted_kwargs="fake",
+            watched_assets=None,
+        )
+    )
+
+    await runner.create_triggers()
+
+    assert len(injected_instances) == 1
+    assert injected_instances[0].asset_store is None
+
+    runner.triggers[11]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_skips_asset_store_for_non_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store injection is skipped for plain BaseTrigger 
(non-BaseEventTrigger) instances."""
+    from airflow.triggers.testing import SuccessTrigger

Review Comment:
   Same here



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):
+    """_create_workload() should populate watched_assets when 
trigger.task_instance is None and assets exist."""
+    asset1 = mocker.Mock()
+    asset1.name = "my_asset"
+    asset1.uri = "s3://bucket/key"
+
+    asset2 = mocker.Mock()
+    asset2.name = "other_asset"
+    asset2.uri = "gs://bucket/path"
+
+    trigger = mocker.Mock()
+    trigger.id = 42
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None  # Not tied to a Task (similar to a 
BaseEventTrigger)
+    trigger.assets = [asset1, asset2]
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets == {"my_asset": "s3://bucket/key", 
"other_asset": "gs://bucket/path"}
+
+
+def 
test_create_workload_watched_assets_none_when_no_assets(jobless_supervisor, 
mocker):
+    """_create_workload() should set watched_assets=None when 
trigger.task_instance is None and assets is empty."""
+    trigger = mocker.Mock()
+    trigger.id = 43
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None
+    trigger.assets = []  # No Assets are attached to the trigger
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets is None
+
+
+def test_run_trigger_workload_includes_watched_assets_field():
+    """RunTrigger workload should accept and store watched_assets."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+        watched_assets={"asset_a": "s3://a", "asset_b": "gs://b"},
+    )
+    assert workload.watched_assets == {"asset_a": "s3://a", "asset_b": 
"gs://b"}
+
+
+def test_run_trigger_workload_watched_assets_defaults_to_none():
+    """RunTrigger workload watched_assets should default to None."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+    )
+    assert workload.watched_assets is None
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_injects_asset_store_for_base_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store is populated on BaseEventTrigger instances when 
watched_assets is set."""
+    from airflow.sdk.execution_time.context import AssetStoreAccessors
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent
+
+    injected_instances = []
+
+    class _WatcherTrigger(BaseEventTrigger):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+            injected_instances.append(self)
+
+        def serialize(self):
+            return (f"{type(self).__module__}.{type(self).__qualname__}", {})
+
+        async def run(self):
+            yield TriggerEvent("done")
+
+    mock_get_classpath.return_value = _WatcherTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=10,
+            ti=None,
+            classpath="fake.WatcherTrigger",
+            encrypted_kwargs="fake",
+            watched_assets={"my_asset": "s3://bucket/key"},
+        )
+    )
+
+    await runner.create_triggers()
+
+    # This is only testing that an exception was NOT thrown when creating the 
Trigger
+    assert 10 in runner.triggers
+
+    assert len(injected_instances) == 1
+    assert injected_instances[0].asset_store is not None
+    assert isinstance(injected_instances[0].asset_store, AssetStoreAccessors)
+
+    runner.triggers[10]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_asset_store_none_when_no_watched_assets(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store stays None when watched_assets is not set on the 
workload."""
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent
+
+    injected_instances = []
+
+    class _WatcherTrigger(BaseEventTrigger):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+            injected_instances.append(self)
+
+        def serialize(self):
+            return (f"{type(self).__module__}.{type(self).__qualname__}", {})
+
+        async def run(self):
+            yield TriggerEvent("done")
+
+    mock_get_classpath.return_value = _WatcherTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=11,
+            ti=None,
+            classpath="fake.WatcherTrigger",
+            encrypted_kwargs="fake",
+            watched_assets=None,
+        )
+    )
+
+    await runner.create_triggers()
+
+    assert len(injected_instances) == 1
+    assert injected_instances[0].asset_store is None
+
+    runner.triggers[11]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_skips_asset_store_for_non_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store injection is skipped for plain BaseTrigger 
(non-BaseEventTrigger) instances."""
+    from airflow.triggers.testing import SuccessTrigger
+
+    mock_get_classpath.return_value = SuccessTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=12, ti=None, 
classpath="airflow.triggers.testing.SuccessTrigger", encrypted_kwargs="fake"
+        )
+    )
+
+    await runner.create_triggers()
+
+    assert 12 in runner.triggers
+    assert not hasattr(runner.triggers[12]["task"], "asset_store")
+
+    runner.triggers[12]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def 
test_create_triggers_asset_store_contains_correct_assets(mock_get_classpath, 
mock_decrypt, session):
+    """AssetStoreAccessors built from watched_assets has entries for all 
provided name/URI pairs."""
+    from airflow.sdk.definitions.asset import Asset
+    from airflow.sdk.execution_time.context import AssetStoreAccessors
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent

Review Comment:
   Same here



##########
airflow-core/src/airflow/jobs/triggerer_job_runner.py:
##########
@@ -1286,6 +1293,16 @@ async def create_triggers(self):
             trigger_instance.triggerer_job_id = self.job_id
             trigger_instance.timeout_after = workload.timeout_after
 
+            if isinstance(trigger_instance, BaseEventTrigger) and 
workload.watched_assets:
+                # Reconstruct AssetStateAccessors from watched_assets

Review Comment:
   ```suggestion
   ```



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):
+    """_create_workload() should populate watched_assets when 
trigger.task_instance is None and assets exist."""
+    asset1 = mocker.Mock()
+    asset1.name = "my_asset"
+    asset1.uri = "s3://bucket/key"
+
+    asset2 = mocker.Mock()
+    asset2.name = "other_asset"
+    asset2.uri = "gs://bucket/path"
+
+    trigger = mocker.Mock()
+    trigger.id = 42
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None  # Not tied to a Task (similar to a 
BaseEventTrigger)
+    trigger.assets = [asset1, asset2]
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets == {"my_asset": "s3://bucket/key", 
"other_asset": "gs://bucket/path"}
+
+
+def 
test_create_workload_watched_assets_none_when_no_assets(jobless_supervisor, 
mocker):
+    """_create_workload() should set watched_assets=None when 
trigger.task_instance is None and assets is empty."""
+    trigger = mocker.Mock()
+    trigger.id = 43
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None
+    trigger.assets = []  # No Assets are attached to the trigger
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets is None
+
+
+def test_run_trigger_workload_includes_watched_assets_field():
+    """RunTrigger workload should accept and store watched_assets."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+        watched_assets={"asset_a": "s3://a", "asset_b": "gs://b"},
+    )
+    assert workload.watched_assets == {"asset_a": "s3://a", "asset_b": 
"gs://b"}
+
+
+def test_run_trigger_workload_watched_assets_defaults_to_none():
+    """RunTrigger workload watched_assets should default to None."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+    )
+    assert workload.watched_assets is None
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_injects_asset_store_for_base_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store is populated on BaseEventTrigger instances when 
watched_assets is set."""
+    from airflow.sdk.execution_time.context import AssetStoreAccessors
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent

Review Comment:
   Move import to top pls



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):
+    """_create_workload() should populate watched_assets when 
trigger.task_instance is None and assets exist."""
+    asset1 = mocker.Mock()
+    asset1.name = "my_asset"
+    asset1.uri = "s3://bucket/key"
+
+    asset2 = mocker.Mock()
+    asset2.name = "other_asset"
+    asset2.uri = "gs://bucket/path"
+
+    trigger = mocker.Mock()
+    trigger.id = 42
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None  # Not tied to a Task (similar to a 
BaseEventTrigger)
+    trigger.assets = [asset1, asset2]
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets == {"my_asset": "s3://bucket/key", 
"other_asset": "gs://bucket/path"}
+
+
+def 
test_create_workload_watched_assets_none_when_no_assets(jobless_supervisor, 
mocker):
+    """_create_workload() should set watched_assets=None when 
trigger.task_instance is None and assets is empty."""
+    trigger = mocker.Mock()
+    trigger.id = 43
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None
+    trigger.assets = []  # No Assets are attached to the trigger
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets is None
+
+
+def test_run_trigger_workload_includes_watched_assets_field():
+    """RunTrigger workload should accept and store watched_assets."""
+    from airflow.executors.workloads.trigger import RunTrigger

Review Comment:
   Top level import pls



##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -558,6 +558,248 @@ def 
test_create_workload_uses_supervisor_id_without_job(jobless_supervisor, mock
     assert factory.log_path == f"/logs/ti.trigger.{jobless_supervisor.id}.log"
 
 
+def 
test_create_workload_sets_watched_assets_for_asset_only_trigger(jobless_supervisor,
 mocker):
+    """_create_workload() should populate watched_assets when 
trigger.task_instance is None and assets exist."""
+    asset1 = mocker.Mock()
+    asset1.name = "my_asset"
+    asset1.uri = "s3://bucket/key"
+
+    asset2 = mocker.Mock()
+    asset2.name = "other_asset"
+    asset2.uri = "gs://bucket/path"
+
+    trigger = mocker.Mock()
+    trigger.id = 42
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None  # Not tied to a Task (similar to a 
BaseEventTrigger)
+    trigger.assets = [asset1, asset2]
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets == {"my_asset": "s3://bucket/key", 
"other_asset": "gs://bucket/path"}
+
+
+def 
test_create_workload_watched_assets_none_when_no_assets(jobless_supervisor, 
mocker):
+    """_create_workload() should set watched_assets=None when 
trigger.task_instance is None and assets is empty."""
+    trigger = mocker.Mock()
+    trigger.id = 43
+    trigger.classpath = "some.path.Trigger"
+    trigger.encrypted_kwargs = "encrypted"
+    trigger.task_instance = None
+    trigger.assets = []  # No Assets are attached to the trigger
+
+    workload = jobless_supervisor._create_workload(
+        trigger=trigger,
+        dag_bag=mocker.Mock(),
+        render_log_fname=mocker.Mock(),
+        session=mocker.Mock(),
+    )
+
+    assert workload is not None
+    assert workload.watched_assets is None
+
+
+def test_run_trigger_workload_includes_watched_assets_field():
+    """RunTrigger workload should accept and store watched_assets."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+        watched_assets={"asset_a": "s3://a", "asset_b": "gs://b"},
+    )
+    assert workload.watched_assets == {"asset_a": "s3://a", "asset_b": 
"gs://b"}
+
+
+def test_run_trigger_workload_watched_assets_defaults_to_none():
+    """RunTrigger workload watched_assets should default to None."""
+    from airflow.executors.workloads.trigger import RunTrigger
+
+    workload = RunTrigger(
+        id=1,
+        classpath="airflow.triggers.testing.SuccessTrigger",
+        encrypted_kwargs="fake",
+    )
+    assert workload.watched_assets is None
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_injects_asset_store_for_base_event_trigger(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store is populated on BaseEventTrigger instances when 
watched_assets is set."""
+    from airflow.sdk.execution_time.context import AssetStoreAccessors
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent
+
+    injected_instances = []
+
+    class _WatcherTrigger(BaseEventTrigger):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+            injected_instances.append(self)
+
+        def serialize(self):
+            return (f"{type(self).__module__}.{type(self).__qualname__}", {})
+
+        async def run(self):
+            yield TriggerEvent("done")
+
+    mock_get_classpath.return_value = _WatcherTrigger
+
+    runner = TriggerRunner()
+    runner.to_create.append(
+        workloads.RunTrigger.model_construct(
+            id=10,
+            ti=None,
+            classpath="fake.WatcherTrigger",
+            encrypted_kwargs="fake",
+            watched_assets={"my_asset": "s3://bucket/key"},
+        )
+    )
+
+    await runner.create_triggers()
+
+    # This is only testing that an exception was NOT thrown when creating the 
Trigger
+    assert 10 in runner.triggers
+
+    assert len(injected_instances) == 1
+    assert injected_instances[0].asset_store is not None
+    assert isinstance(injected_instances[0].asset_store, AssetStoreAccessors)
+
+    runner.triggers[10]["task"].cancel()
+    await runner.cleanup_finished_triggers()
+
+
[email protected]
+@patch("airflow.jobs.triggerer_job_runner.Trigger._decrypt_kwargs", 
return_value={})
+@patch("airflow.jobs.triggerer_job_runner.TriggerRunner.get_trigger_by_classpath")
+async def test_create_triggers_asset_store_none_when_no_watched_assets(
+    mock_get_classpath, mock_decrypt, session
+):
+    """asset_store stays None when watched_assets is not set on the 
workload."""
+    from airflow.triggers.base import BaseEventTrigger, TriggerEvent

Review Comment:
   Move imports to the top pls



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