128 lines
5.4 KiB
Python
128 lines
5.4 KiB
Python
# Copyright (c) 2017 Mirantis Inc.
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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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""" Tests for manage_existing_snapshot TaskFlow."""
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# TODO(mdovgal): add tests for other TaskFlow cases
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import ddt
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import mock
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from cinder import context
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from cinder import test
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from cinder.tests.unit import fake_constants as fake
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from cinder.tests.unit import fake_snapshot
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from cinder.tests.unit import fake_volume
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from cinder.volume.flows.manager import manage_existing_snapshot as manager
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@ddt.ddt
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class ManageSnapshotFlowTestCase(test.TestCase):
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def setUp(self):
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super(ManageSnapshotFlowTestCase, self).setUp()
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self.ctxt = context.get_admin_context()
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@mock.patch('cinder.objects.snapshot.Snapshot.get_by_id')
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def test_manage_snapshot_after_volume_extending(self, _get_by_id):
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"""Test checks snapshot's volume_size value after it is managed."""
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fake_size = 3
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fake_snap = fake_snapshot.fake_snapshot_obj(self.ctxt,
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volume_size=fake_size)
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fake_snap.save = mock.MagicMock()
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_get_by_id.return_value = fake_snap
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real_size = 1
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mock_db = mock.MagicMock()
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mock_driver = mock.MagicMock()
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mock_manage_existing_ref = mock.MagicMock()
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mock_driver.manage_existing_snapshot.return_value = {}
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task = manager.ManageExistingTask(mock_db, mock_driver)
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result = task.execute(self.ctxt, fake_snap, mock_manage_existing_ref,
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real_size)
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snap_after_manage = result['snapshot']
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# assure value is equal that size, that we want
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self.assertEqual(real_size, snap_after_manage['volume_size'])
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@mock.patch('cinder.quota.QuotaEngine.reserve')
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@mock.patch('cinder.db.sqlalchemy.api.volume_type_get')
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@mock.patch('cinder.objects.volume.Volume.get_by_id')
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def test_quota_reservation_task(self, mock_get_vol_by_id, mock_type_get,
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mock_quota_reserve):
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volume_size = 1
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fake_size = '2'
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fake_snap = fake_snapshot.fake_snapshot_obj(self.ctxt,
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volume_size=volume_size)
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fake_snap.save = mock.MagicMock()
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fake_vol = fake_volume.fake_volume_obj(
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self.ctxt, id=fake.VOLUME_ID, volume_type_id=fake.VOLUME_TYPE_ID)
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mock_get_vol_by_id.return_value = fake_vol
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mock_type_get.return_value = {'name': 'fake_type_name'}
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task = manager.QuotaReserveTask()
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task.execute(self.ctxt, fake_size, fake_snap, {})
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reserve_opts = {'gigabytes': 1, 'snapshots': 1,
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'gigabytes_fake_type_name': 1,
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'snapshots_fake_type_name': 1}
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mock_quota_reserve.assert_called_once_with(self.ctxt, **reserve_opts)
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@ddt.data(True, False)
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@mock.patch('cinder.quota.QuotaEngine.reserve')
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@mock.patch('cinder.db.sqlalchemy.api.volume_type_get')
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@mock.patch('cinder.objects.volume.Volume.get_by_id')
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def test_quota_reservation_task_with_update_flag(
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self, need_update, mock_get_vol_by_id,
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mock_type_get, mock_quota_reserve):
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volume_size = 1
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fake_size = '2'
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fake_snap = fake_snapshot.fake_snapshot_obj(self.ctxt,
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volume_size=volume_size)
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fake_snap.save = mock.MagicMock()
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fake_vol = fake_volume.fake_volume_obj(
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self.ctxt, id=fake.VOLUME_ID, volume_type_id=fake.VOLUME_TYPE_ID)
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mock_get_vol_by_id.return_value = fake_vol
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mock_type_get.return_value = {'name': 'fake_type_name'}
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task = manager.QuotaReserveTask()
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task.execute(self.ctxt, fake_size, fake_snap,
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{'update_size': need_update})
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reserve_opts = {'gigabytes': 1, 'gigabytes_fake_type_name': 1}
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if not need_update:
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reserve_opts.update({'snapshots': 1,
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'snapshots_fake_type_name': 1})
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mock_quota_reserve.assert_called_once_with(self.ctxt, **reserve_opts)
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def test_prepare_for_quota_reserveration_task_execute(self):
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mock_db = mock.MagicMock()
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mock_driver = mock.MagicMock()
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mock_manage_existing_ref = mock.MagicMock()
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mock_get_snapshot_size = self.mock_object(
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mock_driver, 'manage_existing_snapshot_get_size')
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mock_get_snapshot_size.return_value = '5'
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fake_snap = fake_snapshot.fake_snapshot_obj(self.ctxt,
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volume_size=1)
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task = manager.PrepareForQuotaReservationTask(mock_db, mock_driver)
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result = task.execute(self.ctxt, fake_snap, mock_manage_existing_ref)
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self.assertEqual(fake_snap, result['snapshot_properties'])
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self.assertEqual('5', result['size'])
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mock_get_snapshot_size.assert_called_once_with(
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snapshot=fake_snap,
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existing_ref=mock_manage_existing_ref)
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