Source code for tests.system.common.sql.example_sql_value_check
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations
from airflow import DAG
from airflow.providers.common.sql.operators.sql import SQLValueCheckOperator
from airflow.sdk.timezone import datetime
[docs]
connection_args = {
"conn_id": "sales_db",
"conn_type": "Postgres",
"host": "postgres",
"schema": "postgres",
"login": "postgres",
"password": "postgres",
"port": 5432,
}
with DAG(
"example_sql_value_check_query",
description="Example DAG for SQLValueCheckOperator.",
default_args=connection_args,
start_date=datetime(2025, 12, 15),
schedule=None,
catchup=False,
) as dag:
"""
### Example SQL value check DAG
Runs the SQLValueCheckOperator against the Airflow metadata DB.
"""
# [START howto_operator_sql_value_check]
[docs]
value_check = SQLValueCheckOperator(
task_id="threshhold_check",
conn_id="sales_db",
sql="SELECT count(distinct(customer_id)) FROM sales LIMIT 50;",
pass_value=40,
tolerance=5,
)
# [END howto_operator_sql_value_check]
from tests_common.test_utils.system_tests 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)