repos/googleapis-python-bigquery-e731b40/samples/tests/test_dataset_exists.py

# Copyright 2019 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.

import typing

from google.cloud import bigquery

from .. import dataset_exists

if typing.TYPE_CHECKING:
    import pytest


def test_dataset_exists(
    capsys: "pytest.CaptureFixture[str]",
    random_dataset_id: str,
    client: bigquery.Client,
) -> None:
    dataset_exists.dataset_exists(random_dataset_id)
    out, err = capsys.readouterr()
    assert "Dataset {} is not found".format(random_dataset_id) in out
    dataset = bigquery.Dataset(random_dataset_id)
    dataset = client.create_dataset(dataset)
    dataset_exists.dataset_exists(random_dataset_id)
    out, err = capsys.readouterr()
    assert "Dataset {} already exists".format(random_dataset_id) in out