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system_test_utils.py
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80 lines (63 loc) · 2.32 KB
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# Copyright 2014 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.
from __future__ import print_function
import os
import sys
import time
from google.cloud.environment_vars import CREDENTIALS as TEST_CREDENTIALS
from google.cloud.environment_vars import TESTS_PROJECT
# From shell environ. May be None.
PROJECT_ID = os.getenv(TESTS_PROJECT)
CREDENTIALS = os.getenv(TEST_CREDENTIALS)
ENVIRON_ERROR_MSG = """\
To run the system tests, you need to set some environment variables.
Please check the CONTRIBUTING guide for instructions.
"""
class EmulatorCreds(object):
"""A mock credential object.
Used to avoid unnecessary token refreshing or reliance on the network
while an emulator is running.
"""
@staticmethod
def create_scoped_required():
return False
def check_environ():
missing = []
extra = ''
if PROJECT_ID is None:
missing.append(TESTS_PROJECT)
if CREDENTIALS is None:
missing.append(TEST_CREDENTIALS)
elif not os.path.isfile(CREDENTIALS):
extra = '\nThe %s path %r is not a file.' % (TEST_CREDENTIALS,
CREDENTIALS)
if missing or extra:
msg = ENVIRON_ERROR_MSG
if missing:
msg += '\nMissing variables: ' + ', '.join(missing)
if extra:
msg += extra
print(msg, file=sys.stderr)
sys.exit(1)
def unique_resource_id(delimiter='_'):
"""A unique identifier for a resource.
Intended to help locate resources created in particular
testing environments and at particular times.
"""
build_id = os.getenv('TRAVIS_BUILD_ID', '')
if build_id == '':
return '%s%d' % (delimiter, 1000 * time.time())
else:
return '%s%s%s%d' % (delimiter, build_id,
delimiter, time.time())