555 lines
24 KiB
Python
555 lines
24 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import mock
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import os
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import shutil
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import tempfile
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import uuid
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import unittest
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import subprocess
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with mock.patch('charmhelpers.core.hookenv.config'):
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import lib.swift_utils as swift_utils
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def init_ring_paths(tmpdir):
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swift_utils.SWIFT_CONF_DIR = tmpdir
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for ring in swift_utils.SWIFT_RINGS.keys():
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path = os.path.join(tmpdir, "{}.builder".format(ring))
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swift_utils.SWIFT_RINGS[ring] = path
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with open(path, 'w') as fd:
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fd.write("0\n")
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def create_mock_load_builder_fn(mock_rings):
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"""To avoid the need for swift.common.ring library, mock a basic rings
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dictionary, keyed by path. Each ring has enough logic to hold a dictionary
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with a single 'devs' key, which stores the list of passed dev(s) by
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add_dev().
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If swift (actual) ring representation diverges (see _load_builder),
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this mock will need to be adapted.
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:param mock_rings: a dict containing the dict form of the rings
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"""
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def mock_load_builder_fn(path):
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class mock_ring(object):
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def __init__(self, path):
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self.path = path
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def to_dict(self):
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return mock_rings[self.path]
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def add_dev(self, dev):
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mock_rings[self.path]['devs'].append(dev)
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return mock_ring(path)
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return mock_load_builder_fn
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class SwiftUtilsTestCase(unittest.TestCase):
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@mock.patch.object(swift_utils, 'previously_synced')
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@mock.patch('lib.swift_utils.update_www_rings')
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@mock.patch('lib.swift_utils.get_builders_checksum')
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@mock.patch('lib.swift_utils.get_rings_checksum')
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@mock.patch('lib.swift_utils.balance_rings')
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@mock.patch('lib.swift_utils.log')
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@mock.patch('lib.swift_utils.os.path.exists')
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@mock.patch('lib.swift_utils.is_elected_leader')
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@mock.patch('lib.swift_utils.get_min_part_hours')
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@mock.patch('lib.swift_utils.set_min_part_hours')
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def test_update_rings(self, mock_set_min_hours,
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mock_get_min_hours,
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mock_is_elected_leader, mock_path_exists,
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mock_log, mock_balance_rings,
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mock_get_rings_checksum,
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mock_get_builders_checksum, mock_update_www_rings,
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mock_previously_synced):
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# Make sure same is returned for both so that we don't try to sync
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mock_get_rings_checksum.return_value = None
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mock_get_builders_checksum.return_value = None
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mock_previously_synced.return_value = True
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# Test blocker 1
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mock_is_elected_leader.return_value = False
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swift_utils.update_rings()
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self.assertFalse(mock_balance_rings.called)
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# Test blocker 2
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mock_path_exists.return_value = False
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mock_is_elected_leader.return_value = True
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swift_utils.update_rings()
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self.assertFalse(mock_get_min_hours.called)
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self.assertFalse(mock_balance_rings.called)
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# Test blocker 3
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mock_path_exists.return_value = True
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mock_is_elected_leader.return_value = True
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mock_get_min_hours.return_value = 10
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swift_utils.update_rings(min_part_hours=10)
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self.assertTrue(mock_get_min_hours.called)
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self.assertFalse(mock_set_min_hours.called)
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self.assertFalse(mock_balance_rings.called)
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mock_get_min_hours.reset_mock()
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# Test go through
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mock_path_exists.return_value = True
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mock_is_elected_leader.return_value = True
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mock_get_min_hours.return_value = 0
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swift_utils.update_rings(min_part_hours=10)
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self.assertTrue(mock_get_min_hours.called)
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self.assertTrue(mock_set_min_hours.called)
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self.assertTrue(mock_balance_rings.called)
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@mock.patch('lib.swift_utils.previously_synced')
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@mock.patch('lib.swift_utils.balance_rings')
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@mock.patch('lib.swift_utils.add_to_ring')
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@mock.patch('lib.swift_utils.exists_in_ring')
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@mock.patch('lib.swift_utils.is_elected_leader')
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def test_update_rings_multiple_devs(self,
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mock_is_leader_elected,
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mock_exists_in_ring,
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mock_add_to_ring,
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mock_balance_rings,
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mock_previously_synced):
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# note that this test does not (and neither did its predecessor) test
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# the 'min_part_hours is non None' part of update_rings()
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devices = ['sdb', 'sdc']
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node_settings = {
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'object_port': 6000,
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'container_port': 6001,
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'account_port': 6002,
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'zone': 1,
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'ip': '1.2.3.4',
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}
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nodes = []
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for dev in devices:
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node = node_settings.copy()
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node['device'] = dev
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nodes.append(node)
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mock_is_leader_elected.return_value = True
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mock_previously_synced.return_value = True
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mock_exists_in_ring.side_effect = lambda *args: False
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swift_utils.update_rings(nodes)
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calls = [mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'account.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdb',
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'account_port': 6002}),
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mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'container.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdb',
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'account_port': 6002}),
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mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'object.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdb',
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'account_port': 6002}),
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mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'account.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdc',
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'account_port': 6002}),
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mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'container.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdc',
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'account_port': 6002}),
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mock.call(os.path.join(swift_utils.SWIFT_CONF_DIR,
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'object.builder'),
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{
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'zone': 1,
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'object_port': 6000,
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'ip': '1.2.3.4',
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'container_port': 6001,
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'device': 'sdc',
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'account_port': 6002})]
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mock_exists_in_ring.assert_has_calls(calls)
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mock_balance_rings.assert_called_once_with()
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mock_add_to_ring.assert_called()
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# try re-adding, assert add_to_ring was not called
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mock_add_to_ring.reset_mock()
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mock_exists_in_ring.side_effect = lambda *args: True
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swift_utils.update_rings(nodes)
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mock_add_to_ring.assert_not_called()
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@mock.patch('lib.swift_utils.balance_rings')
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@mock.patch('lib.swift_utils.log')
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@mock.patch('lib.swift_utils.is_elected_leader')
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@mock.patch('lib.swift_utils.config')
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@mock.patch('lib.swift_utils.update_www_rings')
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@mock.patch('lib.swift_utils.cluster_sync_rings')
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def test_sync_builders_and_rings_if_changed(self, mock_cluster_sync_rings,
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mock_update_www_rings,
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mock_config,
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mock_is_elected_leader,
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mock_log,
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mock_balance_rings):
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@swift_utils.sync_builders_and_rings_if_changed
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def mock_balance():
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for ring, builder in swift_utils.SWIFT_RINGS.items():
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ring = os.path.join(swift_utils.SWIFT_CONF_DIR,
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'{}.ring.gz'.format(ring))
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with open(ring, 'w') as fd:
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fd.write(str(uuid.uuid4()))
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with open(builder, 'w') as fd:
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fd.write(str(uuid.uuid4()))
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mock_balance_rings.side_effect = mock_balance
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init_ring_paths(tempfile.mkdtemp())
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try:
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swift_utils.balance_rings()
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finally:
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shutil.rmtree(swift_utils.SWIFT_CONF_DIR)
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self.assertTrue(mock_update_www_rings.called)
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self.assertTrue(mock_cluster_sync_rings.called)
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@mock.patch('lib.swift_utils.get_www_dir')
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def test_mark_www_rings_deleted(self, mock_get_www_dir):
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try:
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tmpdir = tempfile.mkdtemp()
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mock_get_www_dir.return_value = tmpdir
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swift_utils.mark_www_rings_deleted()
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finally:
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shutil.rmtree(tmpdir)
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@mock.patch('lib.swift_utils.is_elected_leader', lambda arg: True)
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@mock.patch.object(swift_utils, 'get_hostaddr', lambda *args: '1.2.3.4')
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@mock.patch('lib.swift_utils.uuid')
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def test_cluster_rpc_stop_proxy_request(self, mock_uuid):
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mock_uuid.uuid4.return_value = 'test-uuid'
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rpc = swift_utils.SwiftProxyClusterRPC()
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rq = rpc.stop_proxy_request(peers_only=True)
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self.assertEqual({'trigger': 'test-uuid',
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'broker-token': None,
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'broker-timestamp': None,
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'builder-broker': '1.2.3.4',
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'peers-only': 1,
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'leader-changed-notification': None,
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'resync-request': None,
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'stop-proxy-service': 'test-uuid',
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'stop-proxy-service-ack': None,
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'sync-only-builders': None}, rq)
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rq = rpc.stop_proxy_request()
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self.assertEqual({'trigger': 'test-uuid',
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'broker-token': None,
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'broker-timestamp': None,
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'builder-broker': '1.2.3.4',
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'peers-only': None,
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'leader-changed-notification': None,
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'resync-request': None,
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'stop-proxy-service': 'test-uuid',
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'stop-proxy-service-ack': None,
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'sync-only-builders': None}, rq)
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template_keys = set(rpc.template())
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self.assertTrue(set(rq.keys()).issubset(template_keys))
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@mock.patch('lib.swift_utils.uuid')
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def test_cluster_rpc_stop_proxy_ack(self, mock_uuid):
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mock_uuid.uuid4.return_value = 'token2'
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rpc = swift_utils.SwiftProxyClusterRPC()
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rq = rpc.stop_proxy_ack(echo_token='token1', echo_peers_only='1')
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self.assertEqual({'trigger': 'token2',
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'broker-token': None,
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'builder-broker': None,
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'broker-timestamp': None,
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'peers-only': '1',
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'leader-changed-notification': None,
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'resync-request': None,
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'stop-proxy-service': None,
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'stop-proxy-service-ack': 'token1',
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'sync-only-builders': None}, rq)
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template_keys = set(rpc.template())
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self.assertTrue(set(rq.keys()).issubset(template_keys))
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@mock.patch('lib.swift_utils.is_elected_leader', lambda arg: True)
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@mock.patch.object(swift_utils, 'get_hostaddr', lambda *args: '1.2.3.4')
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@mock.patch('lib.swift_utils.uuid')
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def test_cluster_rpc_sync_request(self, mock_uuid):
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mock_uuid.uuid4.return_value = 'token2'
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rpc = swift_utils.SwiftProxyClusterRPC()
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rq = rpc.sync_rings_request('token1', '1.234000')
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self.assertEqual({'trigger': 'token2',
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'broker-token': 'token1',
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'broker-timestamp': '1.234000',
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'builder-broker': '1.2.3.4',
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'peers-only': None,
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'leader-changed-notification': None,
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'resync-request': None,
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'stop-proxy-service': None,
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'stop-proxy-service-ack': None,
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'sync-only-builders': None}, rq)
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template_keys = set(rpc.template())
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self.assertTrue(set(rq.keys()).issubset(template_keys))
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@mock.patch('lib.swift_utils.is_elected_leader', lambda arg: True)
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@mock.patch('lib.swift_utils.uuid')
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def test_cluster_rpc_notify_leader_changed(self, mock_uuid):
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mock_uuid.uuid4.return_value = 'e4b67426-6cc0-4aa3-829d-227999cd0a75'
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rpc = swift_utils.SwiftProxyClusterRPC()
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rq = rpc.notify_leader_changed('token1')
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self.assertEqual({'trigger': 'e4b67426-6cc0-4aa3-829d-227999cd0a75',
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'broker-token': None,
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'builder-broker': None,
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'broker-timestamp': None,
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'peers-only': None,
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'leader-changed-notification': 'token1',
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'stop-proxy-service': None,
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'stop-proxy-service-ack': None,
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'resync-request': None,
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'sync-only-builders': None}, rq)
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template_keys = set(rpc.template().keys())
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self.assertTrue(set(rq.keys()).issubset(template_keys))
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def test_all_responses_equal(self):
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responses = [{'a': 1, 'c': 3}]
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self.assertTrue(swift_utils.all_responses_equal(responses, 'b',
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must_exist=False))
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responses = [{'a': 1, 'c': 3}]
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self.assertFalse(swift_utils.all_responses_equal(responses, 'b'))
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responses = [{'a': 1, 'b': 2, 'c': 3}]
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self.assertTrue(swift_utils.all_responses_equal(responses, 'b'))
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responses = [{'a': 1, 'b': 2, 'c': 3}, {'a': 1, 'b': 2, 'c': 3}]
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self.assertTrue(swift_utils.all_responses_equal(responses, 'b'))
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responses = [{'a': 1, 'b': 2, 'c': 3}, {'a': 2, 'b': 2, 'c': 3}]
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self.assertTrue(swift_utils.all_responses_equal(responses, 'b'))
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responses = [{'a': 1, 'b': 2, 'c': 3}, {'a': 1, 'b': 3, 'c': 3}]
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self.assertFalse(swift_utils.all_responses_equal(responses, 'b'))
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def test_get_first_available_value(self):
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rsps = [{'key1': 'A'}, {'key1': 'B'}]
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self.assertEqual('A',
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swift_utils.get_first_available_value(rsps, 'key1'))
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rsps = [{'key2': 'A'}, {'key1': 'B'}]
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self.assertEqual('B',
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swift_utils.get_first_available_value(rsps, 'key1'))
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rsps = [{'key2': 'A'}, {'key1': 'B'}]
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self.assertIsNone(swift_utils.get_first_available_value(rsps, 'key3'))
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rsps = []
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self.assertIsNone(swift_utils.get_first_available_value(rsps, 'key3'))
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@mock.patch.object(swift_utils, 'relation_get')
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@mock.patch.object(swift_utils, 'related_units', lambda arg: ['proxy/1'])
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@mock.patch.object(swift_utils, 'relation_ids', lambda arg: ['cluster:1'])
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def test_is_most_recent_timestamp(self, mock_rel_get):
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mock_rel_get.return_value = {'broker-timestamp': '1111'}
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self.assertTrue(swift_utils.is_most_recent_timestamp('1234'))
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mock_rel_get.return_value = {'broker-timestamp': '2234'}
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self.assertFalse(swift_utils.is_most_recent_timestamp('1234'))
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mock_rel_get.return_value = {}
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self.assertFalse(swift_utils.is_most_recent_timestamp('1234'))
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mock_rel_get.return_value = {'broker-timestamp': '2234'}
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self.assertFalse(swift_utils.is_most_recent_timestamp(None))
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@mock.patch.object(swift_utils, 'relation_get')
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@mock.patch.object(swift_utils, 'related_units', lambda arg: ['proxy/1'])
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@mock.patch.object(swift_utils, 'relation_ids', lambda arg: ['cluster:1'])
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def test_timestamps_available(self, mock_rel_get):
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mock_rel_get.return_value = {}
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self.assertFalse(swift_utils.timestamps_available('proxy/1'))
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mock_rel_get.return_value = {'broker-timestamp': '1234'}
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self.assertFalse(swift_utils.timestamps_available('proxy/1'))
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mock_rel_get.return_value = {'broker-timestamp': '1234'}
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self.assertTrue(swift_utils.timestamps_available('proxy/2'))
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@mock.patch.object(swift_utils, 'get_manager')
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def test_add_to_ring(self, mock_get_manager):
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ring = 'account'
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node = {
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'ip': '172.16.0.2',
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'region': 1,
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'account_port': 6000,
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'zone': 1,
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'device': '/dev/sdb',
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}
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swift_utils.add_to_ring(ring, node)
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mock_get_manager().add_dev.assert_called_once_with('account', {
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'meta': '',
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'zone': 1,
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'ip': '172.16.0.2',
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'device': '/dev/sdb',
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'port': 6000,
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'weight': 100
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})
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@mock.patch('lib.swift_utils.config')
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@mock.patch('lib.swift_utils.set_os_workload_status')
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@mock.patch('lib.swift_utils.SwiftRingContext.__call__')
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@mock.patch('lib.swift_utils.has_minimum_zones')
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@mock.patch('lib.swift_utils.relation_ids')
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def customer_check_assess_status(
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self, relation_ids, has_min_zones,
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ctxt, workload_status, config):
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config.return_value = 3
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relation_ids.return_value = []
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s, m = swift_utils.customer_check_assess_status(None)
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assert s, m == ('blocked', 'Missing relation: storage')
|
|
|
|
relation_ids.return_value = ['swift-storage:1']
|
|
|
|
ctxt.return_value = {'allowed_hosts': ['1.2.3.4']}
|
|
s, m = swift_utils.customer_check_assess_status(None)
|
|
assert s, m == ('blocked',
|
|
'Not enough related storage nodes')
|
|
|
|
ctxt.return_value = {'allowed_hosts': ['1.2.3.4', '2.3.4.5',
|
|
'3.4.5.6']}
|
|
has_min_zones.return_value = False
|
|
s, m = swift_utils.customer_check_assess_status(None)
|
|
assert s, m == ('blocked',
|
|
'Not enough storage zones for minimum '
|
|
'replicas')
|
|
|
|
@mock.patch.object(swift_utils, 'os_application_version_set')
|
|
def test_assess_status(self, os_application_version_set):
|
|
with mock.patch.object(swift_utils, 'assess_status_func') as asf:
|
|
callee = mock.MagicMock()
|
|
asf.return_value = callee
|
|
swift_utils.assess_status('test-config')
|
|
asf.assert_called_once_with('test-config', None)
|
|
callee.assert_called_once_with()
|
|
os_application_version_set.assert_called_with(
|
|
swift_utils.VERSION_PACKAGE
|
|
)
|
|
|
|
@mock.patch.object(swift_utils, 'relation_ids')
|
|
@mock.patch.object(swift_utils, 'services')
|
|
@mock.patch.object(swift_utils, 'make_assess_status_func')
|
|
def test_assess_status_func(self,
|
|
make_assess_status_func,
|
|
services,
|
|
relation_ids):
|
|
relation_ids.return_value = True
|
|
services.return_value = 's1'
|
|
required_interfaces = {'identity': ['identity-service']}
|
|
swift_utils.assess_status_func('test-config')
|
|
relation_ids.assert_called_once_with('identity-service')
|
|
# ports=None whilst port checks are disabled.
|
|
make_assess_status_func.assert_called_once_with(
|
|
'test-config', required_interfaces,
|
|
charm_func=swift_utils.customer_check_assess_status,
|
|
services='s1', ports=None)
|
|
|
|
@mock.patch.object(swift_utils, 'leader_set')
|
|
@mock.patch.object(swift_utils, 'determine_api_port')
|
|
@mock.patch.object(swift_utils, 'is_leader')
|
|
@mock.patch.object(swift_utils, 'config')
|
|
@mock.patch.object(swift_utils, 'leader_get')
|
|
@mock.patch.object(subprocess, 'check_call')
|
|
def test_config_and_leader_get(self, check_call, leader_get, config,
|
|
is_leader, determine_api_port, leader_set):
|
|
"""Ensure that we config_get, and then leader_get."""
|
|
config.side_effect = lambda key: {
|
|
'auth-type': 'swauth',
|
|
'swauth-admin-key': None,
|
|
'bind-port': 8080}[key]
|
|
determine_api_port.return_value = 8080
|
|
is_leader.return_value = True
|
|
leader_get.return_value = "Test"
|
|
swift_utils.try_initialize_swauth()
|
|
check_call.assert_called_with(['swauth-prep',
|
|
'-A',
|
|
'http://localhost:8080/auth',
|
|
'-K',
|
|
'Test'])
|
|
|
|
@mock.patch.object(swift_utils.uuid, 'uuid4')
|
|
@mock.patch.object(swift_utils, 'relation_set')
|
|
@mock.patch.object(swift_utils, 'get_swift_hash')
|
|
@mock.patch.object(swift_utils, 'log')
|
|
@mock.patch.object(swift_utils, 'relation_ids')
|
|
@mock.patch.object(swift_utils, 'get_www_dir')
|
|
@mock.patch.object(swift_utils, 'format_ipv6_addr')
|
|
@mock.patch.object(swift_utils, 'get_hostaddr')
|
|
@mock.patch.object(swift_utils, 'is_elected_leader')
|
|
def test_notify_storage_rings_available(self, mock_is_leader,
|
|
mock_get_hostaddr,
|
|
mock_format_ipv6_addr,
|
|
mock_get_www_dir,
|
|
mock_relation_ids,
|
|
mock_log,
|
|
mock_get_swift_hash,
|
|
mock_relation_set,
|
|
mock_uuid):
|
|
mock_is_leader.return_value = True
|
|
mock_get_hostaddr.return_value = '10.0.0.1'
|
|
mock_format_ipv6_addr.return_value = None
|
|
mock_get_www_dir.return_value = 'some/dir'
|
|
mock_relation_ids.return_value = ['storage:0']
|
|
mock_get_swift_hash.return_value = 'greathash'
|
|
mock_uuid.return_value = 'uuid-1234'
|
|
swift_utils.notify_storage_rings_available('1.234')
|
|
mock_relation_set.assert_called_once_with(
|
|
broker_timestamp='1.234',
|
|
relation_id='storage:0',
|
|
rings_url='http://10.0.0.1/dir',
|
|
swift_hash='greathash',
|
|
trigger='uuid-1234')
|
|
|
|
@mock.patch.object(swift_utils, 'relation_set')
|
|
@mock.patch.object(swift_utils, 'relation_ids')
|
|
def test_clear_notify_storage_rings_available(self, mock_relation_ids,
|
|
mock_relation_set):
|
|
mock_relation_ids.return_value = ['storage:0']
|
|
swift_utils.clear_storage_rings_available()
|
|
mock_relation_set.assert_called_once_with(
|
|
relation_id='storage:0', rings_url=None)
|