Source code for tests.system.providers.amazon.aws.example_neptune

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from __future__ import annotations

from datetime import datetime

from airflow.decorators import task
from airflow.models.baseoperator import chain
from airflow.models.dag import DAG
from airflow.providers.amazon.aws.hooks.neptune import NeptuneHook
from airflow.providers.amazon.aws.operators.neptune import (
    NeptuneStartDbClusterOperator,
    NeptuneStopDbClusterOperator,
)
from tests.system.providers.amazon.aws.utils import SystemTestContextBuilder

[docs]DAG_ID = "example_neptune"

[docs]sys_test_context_task = SystemTestContextBuilder().build()


@task
[docs]def create_cluster(cluster_id):
    hook = NeptuneHook()
    hook.conn.create_db_cluster(DBClusterIdentifier=cluster_id, Engine="neptune", DeletionProtection=False)
    hook.wait_for_cluster_availability(cluster_id=cluster_id)


@task
[docs]def delete_cluster(cluster_id):
    hook = NeptuneHook()
    hook.conn.delete_db_cluster(DBClusterIdentifier=cluster_id, SkipFinalSnapshot=True)


with DAG(
    dag_id=DAG_ID,
    start_date=datetime(2021, 1, 1),
    schedule="@once",
    catchup=False,
    tags=["example"],
) as dag:
[docs]    test_context = sys_test_context_task()

    env_id = test_context["ENV_ID"]
    cluster_id = f"{env_id}-cluster"

    # [START howto_operator_start_neptune_cluster]
    start_cluster = NeptuneStartDbClusterOperator(task_id="start_task", db_cluster_id=cluster_id)
    # [END howto_operator_start_neptune_cluster]

    # [START howto_operator_stop_neptune_cluster]
    stop_cluster = NeptuneStopDbClusterOperator(task_id="stop_task", db_cluster_id=cluster_id)
    # [END howto_operator_stop_neptune_cluster]

    chain(
        # TEST SETUP
        test_context,
        create_cluster(cluster_id),
        # TEST BODY
        start_cluster,
        stop_cluster,
        # TEST TEARDOWN
        delete_cluster(cluster_id),
    )
    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/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)