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# Copyright 2018 Google LLC
#
# 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 unittest
from unittest import mock
import requests.exceptions
class Test_should_retry(unittest.TestCase):
def _call_fut(self, exc):
from google.cloud.bigquery.retry import _should_retry
return _should_retry(exc)
def test_wo_errors_attribute(self):
self.assertFalse(self._call_fut(object()))
def test_w_empty_errors(self):
exc = mock.Mock(errors=[], spec=["errors"])
self.assertFalse(self._call_fut(exc))
def test_w_non_matching_reason(self):
exc = mock.Mock(errors=[{"reason": "bogus"}], spec=["errors"])
self.assertFalse(self._call_fut(exc))
def test_w_backendError(self):
exc = mock.Mock(errors=[{"reason": "backendError"}], spec=["errors"])
self.assertTrue(self._call_fut(exc))
def test_w_rateLimitExceeded(self):
exc = mock.Mock(errors=[{"reason": "rateLimitExceeded"}], spec=["errors"])
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_connectionerror(self):
exc = ConnectionError()
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_requests_connectionerror(self):
exc = requests.exceptions.ConnectionError()
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_requests_chunked_encoding_error(self):
exc = requests.exceptions.ChunkedEncodingError()
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_requests_connecttimeout(self):
exc = requests.exceptions.ConnectTimeout()
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_requests_readtimeout(self):
exc = requests.exceptions.ReadTimeout()
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_requests_timeout(self):
exc = requests.exceptions.Timeout()
self.assertTrue(self._call_fut(exc))
def test_w_auth_transporterror(self):
from google.auth.exceptions import TransportError
exc = TransportError("testing")
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_too_many_requests(self):
from google.api_core.exceptions import TooManyRequests
exc = TooManyRequests("testing")
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_service_unavailable(self):
from google.api_core.exceptions import ServiceUnavailable
exc = ServiceUnavailable("testing")
self.assertTrue(self._call_fut(exc))
def test_w_internalError(self):
exc = mock.Mock(errors=[{"reason": "internalError"}], spec=["errors"])
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_internal_server_error(self):
from google.api_core.exceptions import InternalServerError
exc = InternalServerError("testing")
self.assertTrue(self._call_fut(exc))
def test_w_badGateway(self):
exc = mock.Mock(errors=[{"reason": "badGateway"}], spec=["errors"])
self.assertTrue(self._call_fut(exc))
def test_w_unstructured_bad_gateway(self):
from google.api_core.exceptions import BadGateway
exc = BadGateway("testing")
self.assertTrue(self._call_fut(exc))
def test_DEFAULT_JOB_RETRY_predicate():
from google.cloud.bigquery.retry import DEFAULT_JOB_RETRY
from google.api_core.exceptions import ClientError
assert not DEFAULT_JOB_RETRY._predicate(TypeError())
assert not DEFAULT_JOB_RETRY._predicate(ClientError("fail"))
assert not DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="idk")])
)
assert DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="rateLimitExceeded")])
)
assert DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="backendError")])
)
def test_DEFAULT_JOB_RETRY_deadline():
from google.cloud.bigquery.retry import DEFAULT_JOB_RETRY, DEFAULT_RETRY
# Make sure we can retry the job at least once.
assert DEFAULT_JOB_RETRY._deadline > DEFAULT_RETRY._deadline
def test_DEFAULT_JOB_RETRY_job_rate_limit_exceeded_retry_predicate():
"""Tests the retry predicate specifically for jobRateLimitExceeded."""
from google.cloud.bigquery.retry import DEFAULT_JOB_RETRY
from google.api_core.exceptions import ClientError
# Non-ClientError exceptions should never trigger a retry
assert not DEFAULT_JOB_RETRY._predicate(TypeError())
# ClientError without specific reason shouldn't trigger a retry
assert not DEFAULT_JOB_RETRY._predicate(ClientError("fail"))
# ClientError with generic reason "idk" shouldn't trigger a retry
assert not DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="idk")])
)
# ClientError with reason "jobRateLimitExceeded" should trigger a retry
assert DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="jobRateLimitExceeded")])
)
# Other retryable reasons should still work as expected
assert DEFAULT_JOB_RETRY._predicate(
ClientError("fail", errors=[dict(reason="backendError")])
)
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