84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
# Copyright (C) 2021-2022 YADRO.
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# All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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from unittest.mock import mock_open
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from unittest.mock import patch
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from unittest import TestCase
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from cinder.volume.drivers.yadro.tatlin_utils import TatlinVolumeConnections
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VOL_ID = 'cinder-volume-id'
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class TatlinVolumeConnectionsTest(TestCase):
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@patch('oslo_concurrency.lockutils.lock', autospec=True)
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@patch('os.mkdir')
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@patch('os.path.isdir')
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def setUp(self, isdir, mkdir, lock):
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self.path = 'fake_path'
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isdir.return_value = False
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self.connections = TatlinVolumeConnections(self.path)
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isdir.assert_called_once_with(self.path)
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mkdir.assert_called_once_with(self.path)
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isdir.reset_mock()
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mkdir.reset_mock()
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isdir.return_value = True
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self.connections = TatlinVolumeConnections(self.path)
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isdir.assert_called_once_with(self.path)
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mkdir.assert_not_called()
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@patch('oslo_concurrency.lockutils.lock', autospec=True)
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@patch('builtins.open', mock_open(read_data='1'))
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@patch('os.path.exists')
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def test_get(self, exists, lock):
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exists.side_effect = [False, True]
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self.assertEqual(self.connections.get(VOL_ID), 0)
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self.assertEqual(self.connections.get(VOL_ID), 1)
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@patch('oslo_concurrency.lockutils.lock', autospec=True)
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@patch('builtins.open', callable=mock_open(read_data='1'))
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@patch('os.path.exists')
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def test_increment(self, exists, open, lock):
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exists.side_effect = [False, True]
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self.assertEqual(self.connections.increment(VOL_ID), 1)
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open.assert_called_once_with(os.path.join(self.path, VOL_ID), 'w')
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with open() as f:
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f.write.assert_called_once_with('1')
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self.assertEqual(self.connections.increment(VOL_ID), 2)
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open.assert_called_with(os.path.join(self.path, VOL_ID), 'w')
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with open() as f:
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f.write.assert_called_with('2')
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@patch('oslo_concurrency.lockutils.lock', autospec=True)
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@patch('builtins.open', callable=mock_open())
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@patch('os.remove')
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@patch('os.path.exists')
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def test_decrement(self, exists, remove, open, lock):
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exists.side_effect = [False, True, True]
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with open() as f:
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f.read.side_effect = [2, 1]
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self.assertEqual(self.connections.decrement(VOL_ID), 0)
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remove.assert_not_called()
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self.assertEqual(self.connections.decrement(VOL_ID), 1)
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open.assert_called_with(os.path.join(self.path, VOL_ID), 'w')
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f.write.assert_called_with('1')
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self.assertEqual(self.connections.decrement(VOL_ID), 0)
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remove.assert_called_with(os.path.join(self.path, VOL_ID))
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