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from __future__ import annotations

from datetime import datetime

import boto3

from airflow import DAG
from airflow.decorators import task
from airflow.models.baseoperator import chain
from import SnsPublishOperator
from airflow.utils.trigger_rule import TriggerRule
from import SystemTestContextBuilder

[docs]sys_test_context_task = SystemTestContextBuilder().build()
[docs]DAG_ID = "example_sns"
[docs]def create_topic(topic_name) -> str: return boto3.client("sns").create_topic(Name=topic_name)["TopicArn"]
[docs]def delete_topic(topic_arn) -> None: boto3.client("sns").delete_topic(TopicArn=topic_arn)
with DAG( dag_id=DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), tags=["example"], catchup=False, ) as dag:
[docs] test_context = sys_test_context_task()
env_id = test_context["ENV_ID"] sns_topic_name = f"{env_id}-test-topic" create_sns_topic = create_topic(sns_topic_name) # [START howto_operator_sns_publish_operator] publish_message = SnsPublishOperator( task_id="publish_message", target_arn=create_sns_topic, message="This is a sample message sent to SNS via an Apache Airflow DAG task.", ) # [END howto_operator_sns_publish_operator] chain( # TEST SETUP test_context, create_sns_topic, # TEST BODY publish_message, # TEST TEARDOWN delete_topic(create_sns_topic), ) 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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