Source code for tests.system.providers.google.cloud.bigquery.example_bigquery_operations_location

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"""
Example Airflow DAG for Google BigQuery service testing data structures with location.
"""

from __future__ import annotations

import os
from datetime import datetime

from airflow.models.dag import DAG
from airflow.providers.google.cloud.operators.bigquery import (
    BigQueryCreateEmptyDatasetOperator,
    BigQueryCreateEmptyTableOperator,
    BigQueryDeleteDatasetOperator,
)
from airflow.utils.trigger_rule import TriggerRule


[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")


[docs]DAG_ID = "bigquery_operations_location"



[docs]BQ_LOCATION = "europe-north1"


[docs]DATASET_NAME = f"dataset_{DAG_ID}_{ENV_ID}"



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

[docs]    create_dataset_with_location = BigQueryCreateEmptyDatasetOperator(
        task_id="create_dataset_with_location",
        dataset_id=DATASET_NAME,
        location=BQ_LOCATION,
    )


    create_table_with_location = BigQueryCreateEmptyTableOperator(
        task_id="create_table_with_location",
        dataset_id=DATASET_NAME,
        table_id="test_table",
        schema_fields=[
            {"name": "emp_name", "type": "STRING", "mode": "REQUIRED"},
            {"name": "salary", "type": "INTEGER", "mode": "NULLABLE"},
        ],
    )

    delete_dataset_with_location = BigQueryDeleteDatasetOperator(
        task_id="delete_dataset_with_location",
        dataset_id=DATASET_NAME,
        delete_contents=True,
        trigger_rule=TriggerRule.ALL_DONE,
    )

    (
        # TEST BODY
        create_dataset_with_location
        >> create_table_with_location
        # TEST TEARDOWN
        >> delete_dataset_with_location
    )

    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)

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