# Copyright (c) 2010 Google Inc. All rights reserved.
#
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# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from unittest import mock
from blinkpy.common.net.network_transaction import NetworkTransaction, NetworkTimeout
from blinkpy.common.system.log_testing import LoggingTestCase
from requests import Response
from requests.exceptions import HTTPError, Timeout
@mock.patch('time.sleep', new=mock.Mock())
class NetworkTransactionTest(LoggingTestCase):
exception = Exception('Test exception')
def setUp(self):
super(NetworkTransactionTest, self).setUp()
self._run_count = 0
def test_success(self):
transaction = NetworkTransaction()
self.assertEqual(transaction.run(lambda retry_index: 42), 42)
def _raise_exception(self, retry_index):
raise self.exception
def test_exception(self):
transaction = NetworkTransaction()
did_process_exception = False
did_throw_exception = True
try:
transaction.run(self._raise_exception)
did_throw_exception = False
except Exception as error: # pylint: disable=broad-except
did_process_exception = True
self.assertEqual(error, self.exception)
self.assertTrue(did_throw_exception)
self.assertTrue(did_process_exception)
def _raise_500_error(self, retry_index):
self._run_count += 1
if retry_index < 2:
response = Response()
response.status_code = 500
response.reason = 'internal server error'
response.url = 'http://example.com/'
raise HTTPError(response=response)
return 42
def _raise_404_error(self, retry_index):
response = Response()
response.status_code = 404
response.reason = 'not found'
response.url = 'http://foo.com/'
raise HTTPError(response=response)
def _raise_timeout(self, retry_index):
raise Timeout()
def test_retry(self):
transaction = NetworkTransaction(initial_backoff_seconds=0)
self.assertEqual(transaction.run(self._raise_500_error), 42)
self.assertEqual(self._run_count, 3)
self.assertLog([
'WARNING: Received HTTP status 500 loading "http://example.com/": internal server error. \n',
'WARNING: Retrying in 0.000 seconds...\n',
'WARNING: Received HTTP status 500 loading "http://example.com/": internal server error. \n',
'WARNING: Retrying in 0.000 seconds...\n'
])
def test_convert_404_to_none(self):
transaction = NetworkTransaction(return_none_on_404=True)
self.assertIsNone(transaction.run(self._raise_404_error))
def test_timeout(self):
transaction = NetworkTransaction(
initial_backoff_seconds=60 * 60, timeout_seconds=60)
with self.assertRaises(NetworkTimeout):
transaction.run(self._raise_timeout)
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