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Add error reporting system test (#3348)
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# 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. | ||
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import functools | ||
import operator | ||
import unittest | ||
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from google.cloud import error_reporting | ||
from google.cloud.gapic.errorreporting.v1beta1 import ( | ||
error_stats_service_client) | ||
from google.cloud.proto.devtools.clouderrorreporting.v1beta1 import ( | ||
error_stats_service_pb2) | ||
from google.protobuf.duration_pb2 import Duration | ||
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from test_utils.retry import RetryResult | ||
from test_utils.system import unique_resource_id | ||
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ERROR_MSG = 'Stackdriver Error Reporting System Test' | ||
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def setUpModule(): | ||
Config.CLIENT = error_reporting.Client() | ||
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class Config(object): | ||
"""Run-time configuration to be modified at set-up. | ||
This is a mutable stand-in to allow test set-up to modify | ||
global state. | ||
""" | ||
CLIENT = None | ||
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def _list_groups(client): | ||
"""List Error Groups from the last 60 seconds. | ||
This class provides a wrapper around making calls to the GAX | ||
API. It's used by the system tests to find the appropriate error group | ||
to verify the error was successfully reported. | ||
:type client: :class:`~google.cloud.error_reporting.client.Client` | ||
:param client: The client containing a project and credentials. | ||
:rtype: :class:`~google.gax.ResourceIterator` | ||
:returns: Iterable of :class:`~.error_stats_service_pb2.ErrorGroupStats`. | ||
""" | ||
gax_api = error_stats_service_client.ErrorStatsServiceClient( | ||
credentials=client._credentials) | ||
project_name = gax_api.project_path(client.project) | ||
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time_range = error_stats_service_pb2.QueryTimeRange() | ||
time_range.period = error_stats_service_pb2.QueryTimeRange.PERIOD_1_HOUR | ||
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duration = Duration(seconds=60 * 60) | ||
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return gax_api.list_group_stats( | ||
project_name, time_range, timed_count_duration=duration) | ||
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def _simulate_exception(class_name, client): | ||
"""Simulates an exception to verify it was reported. | ||
:type class_name: str | ||
:param class_name: The name of a custom error class to | ||
create (and raise). | ||
:type client: :class:`~google.cloud.error_reporting.client.Client` | ||
:param client: The client that will report the exception. | ||
""" | ||
custom_exc = type(class_name, (RuntimeError,), {}) | ||
try: | ||
raise custom_exc(ERROR_MSG) | ||
except RuntimeError: | ||
client.report_exception() | ||
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def _get_error_count(class_name, client): | ||
"""Counts the number of errors in the group of the test exception. | ||
:type class_name: str | ||
:param class_name: The name of a custom error class used. | ||
:type client: :class:`~google.cloud.error_reporting.client.Client` | ||
:param client: The client containing a project and credentials. | ||
:rtype: int | ||
:returns: Group count for errors that match ``class_name``. If no | ||
match is found, returns :data:`None`. | ||
""" | ||
groups = _list_groups(client) | ||
for group in groups: | ||
if class_name in group.representative.message: | ||
return group.count | ||
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class TestErrorReporting(unittest.TestCase): | ||
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def test_report_exception(self): | ||
# Get a class name unique to this test case. | ||
class_name = 'RuntimeError' + unique_resource_id('_') | ||
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# Simulate an error: group won't exist until we report | ||
# first exception. | ||
_simulate_exception(class_name, Config.CLIENT) | ||
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is_one = functools.partial(operator.eq, 1) | ||
is_one.__name__ = 'is_one' # partial() has no name. | ||
wrapped_get_count = RetryResult(is_one)(_get_error_count) | ||
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error_count = wrapped_get_count(class_name, Config.CLIENT) | ||
self.assertEqual(error_count, 1) |