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# Copyright (c) 2017 OpenStack Foundation
#
# 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 uuid
from swift.common.manager import Manager
from swiftclient import client
from test.probe.brain import BrainSplitter
from test.probe.common import ReplProbeTest
def chunker(body):
'''Helper to ensure swiftclient sends a chunked request.'''
yield body
class TestPutIfNoneMatchRepl(ReplProbeTest):
def setUp(self):
super(TestPutIfNoneMatchRepl, self).setUp()
self.container_name = 'container-%s' % uuid.uuid4()
self.object_name = 'object-%s' % uuid.uuid4()
self.brain = BrainSplitter(self.url, self.token, self.container_name,
self.object_name, 'object',
policy=self.policy)
def _do_test(self, overwrite_contents):
self.brain.put_container()
self.brain.stop_primary_half()
# put object to only 1 of 3 primaries
self.brain.put_object(contents=b'VERIFY')
self.brain.start_primary_half()
# Restart services and attempt to overwrite
with self.assertRaises(client.ClientException) as exc_mgr:
self.brain.put_object(headers={'If-None-Match': '*'},
contents=overwrite_contents)
self.assertEqual(exc_mgr.exception.http_status, 412)
# make sure we're GETting from the servers that missed the original PUT
self.brain.stop_handoff_half()
# verify the PUT did not complete
with self.assertRaises(client.ClientException) as exc_mgr:
client.get_object(
self.url, self.token, self.container_name, self.object_name)
self.assertEqual(exc_mgr.exception.http_status, 404)
# for completeness, run replicators...
Manager(['object-replicator']).once()
# ...and verify the object was not overwritten
_headers, body = client.get_object(
self.url, self.token, self.container_name, self.object_name)
self.assertEqual(body, b'VERIFY')
def test_content_length_nonzero(self):
self._do_test(b'OVERWRITE')
def test_content_length_zero(self):
self._do_test(b'')
def test_chunked(self):
self._do_test(chunker(b'OVERWRITE'))
def test_chunked_empty(self):
self._do_test(chunker(b''))
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