# Copyright 2020 Google LLC
#
# Licensed 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
#
#     https://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 airflow import models

from . import unit_testing


def test_dag_import():
    """Test that the DAG file can be successfully imported.

    This tests that the DAG can be parsed, but does not run it in an Airflow
    environment. This is a recommended sanity check by the official Airflow
    docs: https://airflow.incubator.apache.org/tutorial.html#testing
    """
    models.Variable.set("bucket_path", "gs://example_bucket")
    models.Variable.set("project_id", "example-project")
    models.Variable.set("gce_zone", "us-central1-f")
    models.Variable.set("gce_region", "us-central1-f")
    from . import dataflowtemplateoperator_tutorial as module

    unit_testing.assert_has_valid_dag(module)
