# Copyright 2016 Google Inc. All Rights Reserved.
#
# 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 google.auth
import mock

import snippets


def test_implicit():
    snippets.implicit(os.environ['GCLOUD_PROJECT'])


def test_explicit():
    with open(os.environ['GOOGLE_APPLICATION_CREDENTIALS']) as creds_file:
        creds_file_data = creds_file.read()

    open_mock = mock.mock_open(read_data=creds_file_data)

    with mock.patch('io.open', open_mock):
        snippets.explicit(os.environ['GCLOUD_PROJECT'])


def test_explicit_compute_engine():
    adc, project = google.auth.default()
    credentials_patch = mock.patch(
        'google.auth.compute_engine.Credentials', return_value=adc)

    with credentials_patch:
        snippets.explicit_compute_engine(project)


def test_explicit_app_engine():
    adc, project = google.auth.default()
    credentials_patch = mock.patch(
        'google.auth.app_engine.Credentials', return_value=adc)

    with credentials_patch:
        snippets.explicit_app_engine(project)