tanelk edited a comment on issue #22078:
URL: https://github.com/apache/airflow/issues/22078#issuecomment-1067650427
Meanwhile these unit tests pass:
```
def test_external_task_sensor_link_execution_delta(dag_maker, app):
with dag_maker():
ExternalTaskSensor(
task_id='external_task_sensor',
external_dag_id='external_dag_id',
execution_delta=timedelta(days=1),
)
dagrun = dag_maker.create_dagrun(run_type=DagRunType.SCHEDULED,
execution_date=DEFAULT_DATE)
(instance,) = dagrun.task_instances
instance.render_templates()
# Verify that the operator link has correct execution_date
app.config['SERVER_NAME'] = ""
with app.app_context():
url = instance.task.get_extra_links(instance, "External DAG")
assert f"tree?dag_id=external_dag_id&execution_date={(DEFAULT_DATE -
timedelta(days=1)).date()}" in url
def test_external_task_sensor_link_execution_date_fn(dag_maker, app):
with dag_maker():
ExternalTaskSensor(
task_id='external_task_sensor',
external_dag_id='external_dag_id',
execution_date_fn=lambda date: date - timedelta(days=1),
)
dagrun = dag_maker.create_dagrun(run_type=DagRunType.SCHEDULED,
execution_date=DEFAULT_DATE)
(instance,) = dagrun.task_instances
instance.render_templates()
# Verify that the operator link has correct execution_date
app.config['SERVER_NAME'] = ""
with app.app_context():
url = instance.task.get_extra_links(instance, "External DAG")
assert f"tree?dag_id=external_dag_id&execution_date={(DEFAULT_DATE -
timedelta(days=1)).date()}" in url
```
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