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test_query.py
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test_query.py
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# Copyright 2021 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
#
# 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 google.cloud import bigquery
def test_dry_run(bigquery_client: bigquery.Client, scalars_table: str):
query_config = bigquery.QueryJobConfig()
query_config.dry_run = True
query_string = f"SELECT * FROM {scalars_table}"
query_job = bigquery_client.query(query_string, job_config=query_config,)
# Note: `query_job.result()` is not necessary on a dry run query. All
# necessary information is returned in the initial response.
assert query_job.dry_run is True
assert query_job.total_bytes_processed > 0
assert len(query_job.schema) > 0