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Airflow System Test DAG that verifies Datastore rollback operators.
from __future__ import annotations

import os
from datetime import datetime
from typing import Any

from airflow import models
from import (

[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")
[docs]DAG_ID = "datastore_rollback"
[docs]TRANSACTION_OPTIONS: dict[str, Any] = {"readWrite": {}}
with models.DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["datastore", "example"], ) as dag:
[docs] begin_transaction_to_rollback = CloudDatastoreBeginTransactionOperator( task_id="begin_transaction_to_rollback", transaction_options=TRANSACTION_OPTIONS, project_id=PROJECT_ID, )
# [START how_to_rollback_transaction] rollback_transaction = CloudDatastoreRollbackOperator( task_id="rollback_transaction", transaction=begin_transaction_to_rollback.output, ) # [END how_to_rollback_transaction] begin_transaction_to_rollback >> rollback_transaction from tests.system.utils.watcher import watcher # This test needs watcher in order to properly mark success/failure # when "tearDown" task with trigger rule is part of the DAG list(dag.tasks) >> watcher() from tests.system.utils import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/
[docs]test_run = get_test_run(dag)

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