iframe-proxy | Sunbelt Computer Software

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# Copyright 2015, 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.
Common testing utilities between samples
import contextlib
import tempfile
import unittest
from flaky import flaky
import gcloud
import httplib2
from nose.plugins.attrib import attr
from nose.plugins.skip import SkipTest
from six.moves import cStringIO
    APPENGINE_AVAILABLE = True
    from google.appengine.datastore import datastore_stub_util
    from google.appengine.ext import testbed
    from google.appengine.api import namespace_manager
except ImportError:
    APPENGINE_AVAILABLE = False
RESOURCE_PATH = os.path.join(
    os.path.abspath(os.path.dirname(__file__)), 'resources')
PROJECT_ID_ENV_VAR = 'TEST_PROJECT_ID'
BUCKET_NAME_ENV_VAR = 'TEST_BUCKET_NAME'
def flaky_filter(e, *args):
    exception_class, exception_instance, traceback = e
    return isinstance(
        exception_instance,
        (gcloud.exceptions.GCloudError,))
def mark_flaky(f):
    return flaky(max_runs=3, rerun_filter=flaky_filter)(
        attr('flaky')(f))
class CloudBaseTest(unittest.TestCase):
    def setUp(self):
        self.resource_path = RESOURCE_PATH
        self.project_id = os.environ.get(PROJECT_ID_ENV_VAR)
        if not self.project_id:
            raise EnvironmentError(
                'You must set the {} environment variable to a valid Google '
                'Cloud project ID.'.format(PROJECT_ID_ENV_VAR))
        self.bucket_name = os.environ.get(BUCKET_NAME_ENV_VAR)
        if not self.bucket_name:
            raise EnvironmentError(
                'You must set the {} environment variable to a valid Google '
                'Cloud Storage bucket.'.format(BUCKET_NAME_ENV_VAR))
class AppEngineTestbedCase(CloudBaseTest):
    """A base test case for common setup/teardown tasks for test."""
    def setUp(self):
        super(AppEngineTestbedCase, self).setUp()
        if not APPENGINE_AVAILABLE:
            raise SkipTest()
        # A hack to prevent get_application_default from going GAE route.
        self._server_software_org = os.environ.get('SERVER_SOFTWARE')
        os.environ['SERVER_SOFTWARE'] = ''
        # Setup the datastore and memcache stub.
        # First, create an instance of the Testbed class.
        self.testbed = testbed.Testbed()
        # Then activate the testbed, which prepares the service stubs for
        # use.
        self.testbed.activate()
        # Create a consistency policy that will simulate the High
        # Replication consistency model.
        self.policy = datastore_stub_util.PseudoRandomHRConsistencyPolicy(
            probability=0)
        # Initialize the datastore stub with this policy.
        self.testbed.init_datastore_v3_stub(
            datastore_file=tempfile.mkstemp()[1],
            consistency_policy=self.policy)
        self.testbed.init_memcache_stub()
        # Setup remaining stubs.
        self.testbed.init_app_identity_stub()
        self.testbed.init_blobstore_stub()
        self.testbed.init_user_stub()
        self.testbed.init_taskqueue_stub(root_path='tests/resources')
        self.taskqueue_stub = self.testbed.get_stub(
            testbed.TASKQUEUE_SERVICE_NAME)
        self.testbed.init_logservice_stub()
    def tearDown(self):
        super(AppEngineTestbedCase, self).tearDown()
        if self._server_software_org:
            os.environ['SERVER_SOFTWARE'] = self._server_software_org
        self.testbed.deactivate()
    def loginUser(self, email='user@example.com', id='123', is_admin=False):
        self.testbed.setup_env(
            user_email=email,
            user_id=id,
            user_is_admin='1' if is_admin else '0',
            overwrite=True)
    def runTasks(self):
        tasks = self.taskqueue_stub.get_filtered_tasks()
        for task in tasks:
            namespace = task.headers.get('X-AppEngine-Current-Namespace', '')
            previous_namespace = namespace_manager.get_namespace()
            try:
                namespace_manager.set_namespace(namespace)
                self.app.post(
                    task.url,
                    task.extract_params(),
                    headers={
                        k: v for k, v in task.headers.iteritems()
                        if k.startswith('X-AppEngine')})
            finally:
                namespace_manager.set_namespace(previous_namespace)
@contextlib.contextmanager
def capture_stdout():
    """Capture stdout to a StringIO object."""
    fake_stdout = cStringIO()
    old_stdout = sys.stdout
        sys.stdout = fake_stdout
        yield fake_stdout
    finally:
        sys.stdout = old_stdout
class Http2Mock(object):
    """Mock httplib2.Http"""
    def __init__(self, responses):
        self.responses = responses
    def add_credentials(self, user, pwd):
        self.credentials = (user, pwd)
    def request(self, token_uri, method, body, headers=None, *args, **kwargs):
        response = self.responses.pop(0)
        self.status = response.get('status', 200)
        self.body = response.get('body', '')
        self.headers = response.get('headers', '')
        return (self, self.body)
    def __enter__(self):
        self.httplib2_orig = httplib2.Http
        httplib2.Http = self
        return self
    def __exit__(self, exc_type, exc_value, traceback):
        httplib2.Http = self.httplib2_orig
    def __call__(self, *args, **kwargs):
        return self
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