testbed/googleapis__python-bigquery/samples/desktopapp/user_credentials_test.py

# Copyright 2017 Google Inc.
#
# 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.

import os
import sys
from typing import Iterator, Union
from unittest import mock

import google.auth
import pytest

from .user_credentials import main  # type: ignore

PROJECT = os.environ["GOOGLE_CLOUD_PROJECT"]


if sys.version_info >= (3, 8):
    # Python 3.8+ has an AsyncMock attribute in unittest.mock, but 3.7 does not
    MockType = Union[mock.MagicMock, mock.AsyncMock]
else:
    # Other definitions and imports
    MockType = Union[mock.MagicMock]


@pytest.fixture
def mock_flow() -> Iterator[MockType]:
    flow_patch = mock.patch("google_auth_oauthlib.flow.InstalledAppFlow", autospec=True)

    with flow_patch as flow_mock:
        flow_mock.from_client_secrets_file.return_value = flow_mock
        flow_mock.credentials = google.auth.default()[0]
        yield flow_mock


def test_auth_query_console(
    mock_flow: MockType, capsys: pytest.CaptureFixture[str]
) -> None:
    main(PROJECT)
    out, _ = capsys.readouterr()
    # Fun fact: William P. Wood was the 1st director of the US Secret Service.
    assert "William" in out