760 lines
27 KiB
Python
760 lines
27 KiB
Python
# Copyright (c) 2012 NetApp, Inc.
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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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"""Unit tests for the NFS driver module."""
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import errno
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import os
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import mock
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import mox as mox_lib
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from mox import IgnoreArg
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from mox import IsA
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from mox import stubout
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from oslo.config import cfg
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from cinder import context
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from cinder import exception
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from cinder.image import image_utils
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from cinder.openstack.common import units
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from cinder import test
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from cinder.volume import configuration as conf
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from cinder.volume.drivers import nfs
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from cinder.volume.drivers import remotefs
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class DumbVolume(object):
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fields = {}
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def __setitem__(self, key, value):
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self.fields[key] = value
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def __getitem__(self, item):
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return self.fields[item]
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class RemoteFsDriverTestCase(test.TestCase):
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TEST_FILE_NAME = 'test.txt'
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def setUp(self):
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super(RemoteFsDriverTestCase, self).setUp()
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self._driver = remotefs.RemoteFSDriver()
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self._mox = mox_lib.Mox()
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self.addCleanup(self._mox.UnsetStubs)
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def test_create_sparsed_file(self):
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(mox, drv) = self._mox, self._driver
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('truncate', '-s', '1G', '/path', run_as_root=True).\
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AndReturn("")
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mox.ReplayAll()
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drv._create_sparsed_file('/path', 1)
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mox.VerifyAll()
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def test_create_regular_file(self):
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(mox, drv) = self._mox, self._driver
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('dd', 'if=/dev/zero', 'of=/path', 'bs=1M', 'count=1024',
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run_as_root=True)
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mox.ReplayAll()
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drv._create_regular_file('/path', 1)
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mox.VerifyAll()
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def test_create_qcow2_file(self):
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(mox, drv) = self._mox, self._driver
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file_size = 1
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('qemu-img', 'create', '-f', 'qcow2',
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'-o', 'preallocation=metadata', '/path',
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'%s' % str(file_size * units.Gi), run_as_root=True)
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mox.ReplayAll()
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drv._create_qcow2_file('/path', file_size)
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mox.VerifyAll()
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def test_set_rw_permissions_for_all(self):
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(mox, drv) = self._mox, self._driver
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('chmod', 'ugo+rw', '/path', run_as_root=True)
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mox.ReplayAll()
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drv._set_rw_permissions_for_all('/path')
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mox.VerifyAll()
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class NfsDriverTestCase(test.TestCase):
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"""Test case for NFS driver."""
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TEST_NFS_EXPORT1 = 'nfs-host1:/export'
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TEST_NFS_EXPORT2 = 'nfs-host2:/export'
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TEST_NFS_EXPORT2_OPTIONS = '-o intr'
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TEST_SIZE_IN_GB = 1
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TEST_MNT_POINT = '/mnt/nfs'
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TEST_MNT_POINT_BASE = '/mnt/test'
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TEST_LOCAL_PATH = '/mnt/nfs/volume-123'
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TEST_FILE_NAME = 'test.txt'
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TEST_SHARES_CONFIG_FILE = '/etc/cinder/test-shares.conf'
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TEST_NFS_EXPORT_SPACES = 'nfs-host3:/export this'
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TEST_MNT_POINT_SPACES = '/ 0 0 0 /foo'
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def setUp(self):
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super(NfsDriverTestCase, self).setUp()
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self._mox = mox_lib.Mox()
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self.stubs = stubout.StubOutForTesting()
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self.configuration = mox_lib.MockObject(conf.Configuration)
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self.configuration.append_config_values(mox_lib.IgnoreArg())
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self.configuration.nfs_shares_config = None
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self.configuration.nfs_sparsed_volumes = True
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self.configuration.nfs_used_ratio = 0.95
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self.configuration.nfs_oversub_ratio = 1.0
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self.configuration.nfs_mount_point_base = self.TEST_MNT_POINT_BASE
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self.configuration.nfs_mount_options = None
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self.configuration.volume_dd_blocksize = '1M'
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self._driver = nfs.NfsDriver(configuration=self.configuration)
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self._driver.shares = {}
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self.addCleanup(self.stubs.UnsetAll)
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self.addCleanup(self._mox.UnsetStubs)
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def stub_out_not_replaying(self, obj, attr_name):
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attr_to_replace = getattr(obj, attr_name)
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stub = mox_lib.MockObject(attr_to_replace)
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self.stubs.Set(obj, attr_name, stub)
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def test_local_path(self):
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"""local_path common use case."""
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self.configuration.nfs_mount_point_base = self.TEST_MNT_POINT_BASE
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drv = self._driver
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volume = DumbVolume()
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volume['provider_location'] = self.TEST_NFS_EXPORT1
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volume['name'] = 'volume-123'
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self.assertEqual(
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'/mnt/test/2f4f60214cf43c595666dd815f0360a4/volume-123',
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drv.local_path(volume))
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def test_copy_image_to_volume(self):
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"""resize_image common case usage."""
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mox = self._mox
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drv = self._driver
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TEST_IMG_SOURCE = 'foo.img'
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volume = {'size': self.TEST_SIZE_IN_GB, 'name': TEST_IMG_SOURCE}
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def fake_local_path(volume):
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return volume['name']
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self.stubs.Set(drv, 'local_path', fake_local_path)
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mox.StubOutWithMock(image_utils, 'fetch_to_raw')
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image_utils.fetch_to_raw(None, None, None, TEST_IMG_SOURCE,
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mox_lib.IgnoreArg(),
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size=self.TEST_SIZE_IN_GB)
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mox.StubOutWithMock(image_utils, 'resize_image')
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image_utils.resize_image(TEST_IMG_SOURCE, self.TEST_SIZE_IN_GB)
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mox.StubOutWithMock(image_utils, 'qemu_img_info')
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data = mox_lib.MockAnything()
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data.virtual_size = 1 * units.Gi
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image_utils.qemu_img_info(TEST_IMG_SOURCE).AndReturn(data)
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mox.ReplayAll()
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drv.copy_image_to_volume(None, volume, None, None)
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mox.VerifyAll()
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def test_get_mount_point_for_share(self):
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"""_get_mount_point_for_share should calculate correct value."""
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drv = self._driver
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self.configuration.nfs_mount_point_base = self.TEST_MNT_POINT_BASE
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self.assertEqual('/mnt/test/2f4f60214cf43c595666dd815f0360a4',
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drv._get_mount_point_for_share(self.TEST_NFS_EXPORT1))
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def test_get_capacity_info(self):
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"""_get_capacity_info should calculate correct value."""
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mox = self._mox
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drv = self._driver
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stat_total_size = 2620544
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stat_avail = 2129984
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stat_output = '1 %d %d' % (stat_total_size, stat_avail)
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du_used = 490560
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du_output = '%d /mnt' % du_used
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mox.StubOutWithMock(drv, '_get_mount_point_for_share')
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drv._get_mount_point_for_share(self.TEST_NFS_EXPORT1).\
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AndReturn(self.TEST_MNT_POINT)
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('stat', '-f', '-c', '%S %b %a',
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self.TEST_MNT_POINT,
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run_as_root=True).AndReturn((stat_output, None))
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drv._execute('du', '-sb', '--apparent-size',
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'--exclude', '*snapshot*',
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self.TEST_MNT_POINT,
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run_as_root=True).AndReturn((du_output, None))
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mox.ReplayAll()
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self.assertEqual((stat_total_size, stat_avail, du_used),
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drv._get_capacity_info(self.TEST_NFS_EXPORT1))
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mox.VerifyAll()
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def test_get_capacity_info_for_share_and_mount_point_with_spaces(self):
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"""_get_capacity_info should calculate correct value."""
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mox = self._mox
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drv = self._driver
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stat_total_size = 2620544
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stat_avail = 2129984
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stat_output = '1 %d %d' % (stat_total_size, stat_avail)
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du_used = 490560
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du_output = '%d /mnt' % du_used
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mox.StubOutWithMock(drv, '_get_mount_point_for_share')
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drv._get_mount_point_for_share(self.TEST_NFS_EXPORT_SPACES).\
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AndReturn(self.TEST_MNT_POINT_SPACES)
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('stat', '-f', '-c', '%S %b %a',
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self.TEST_MNT_POINT_SPACES,
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run_as_root=True).AndReturn((stat_output, None))
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drv._execute('du', '-sb', '--apparent-size',
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'--exclude', '*snapshot*',
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self.TEST_MNT_POINT_SPACES,
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run_as_root=True).AndReturn((du_output, None))
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mox.ReplayAll()
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self.assertEqual((stat_total_size, stat_avail, du_used),
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drv._get_capacity_info(self.TEST_NFS_EXPORT_SPACES))
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mox.VerifyAll()
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def test_load_shares_config(self):
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mox = self._mox
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drv = self._driver
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drv.configuration.nfs_shares_config = self.TEST_SHARES_CONFIG_FILE
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mox.StubOutWithMock(drv, '_read_config_file')
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config_data = []
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config_data.append(self.TEST_NFS_EXPORT1)
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config_data.append('#' + self.TEST_NFS_EXPORT2)
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config_data.append('')
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config_data.append(self.TEST_NFS_EXPORT2 + ' ' +
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self.TEST_NFS_EXPORT2_OPTIONS)
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config_data.append('broken:share_format')
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drv._read_config_file(self.TEST_SHARES_CONFIG_FILE).\
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AndReturn(config_data)
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mox.ReplayAll()
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drv._load_shares_config(drv.configuration.nfs_shares_config)
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self.assertIn(self.TEST_NFS_EXPORT1, drv.shares)
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self.assertIn(self.TEST_NFS_EXPORT2, drv.shares)
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self.assertEqual(len(drv.shares), 2)
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self.assertEqual(drv.shares[self.TEST_NFS_EXPORT2],
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self.TEST_NFS_EXPORT2_OPTIONS)
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mox.VerifyAll()
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def test_ensure_shares_mounted_should_save_mounting_successfully(self):
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"""_ensure_shares_mounted should save share if mounted with success."""
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mox = self._mox
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drv = self._driver
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mox.StubOutWithMock(drv, '_read_config_file')
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config_data = []
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config_data.append(self.TEST_NFS_EXPORT1)
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drv._read_config_file(self.TEST_SHARES_CONFIG_FILE).\
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AndReturn(config_data)
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mox.StubOutWithMock(drv, '_ensure_share_mounted')
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drv.configuration.nfs_shares_config = self.TEST_SHARES_CONFIG_FILE
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drv._ensure_share_mounted(self.TEST_NFS_EXPORT1)
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mox.ReplayAll()
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drv._ensure_shares_mounted()
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self.assertEqual(1, len(drv._mounted_shares))
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self.assertEqual(self.TEST_NFS_EXPORT1, drv._mounted_shares[0])
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mox.VerifyAll()
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def test_ensure_shares_mounted_should_not_save_mounting_with_error(self):
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"""_ensure_shares_mounted should not save share if failed to mount."""
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config_data = []
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config_data.append(self.TEST_NFS_EXPORT1)
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self._driver.configuration.nfs_shares_config =\
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self.TEST_SHARES_CONFIG_FILE
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self.mock_object(self._driver, '_read_config_file',
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mock.Mock(return_value=config_data))
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self.mock_object(self._driver, '_ensure_share_mounted',
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mock.Mock(side_effect=Exception()))
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self.mock_object(remotefs, 'LOG')
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self._driver._ensure_shares_mounted()
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self.assertEqual(0, len(self._driver._mounted_shares))
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self._driver._read_config_file.assert_called_once_with(
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self.TEST_SHARES_CONFIG_FILE)
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self._driver._ensure_share_mounted.assert_called_once_with(
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self.TEST_NFS_EXPORT1)
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self.assertEqual(1, remotefs.LOG.error.call_count)
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def test_setup_should_throw_error_if_shares_config_not_configured(self):
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"""do_setup should throw error if shares config is not configured."""
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drv = self._driver
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self.configuration.nfs_shares_config = self.TEST_SHARES_CONFIG_FILE
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self.assertRaises(exception.NfsException,
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drv.do_setup, IsA(context.RequestContext))
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def test_setup_should_throw_error_if_oversub_ratio_less_than_zero(self):
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"""do_setup should throw error if nfs_oversub_ratio is less than 0."""
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drv = self._driver
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self.configuration.nfs_oversub_ratio = -1
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self.assertRaises(exception.NfsException,
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drv.do_setup,
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IsA(context.RequestContext))
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def test_setup_should_throw_error_if_used_ratio_less_than_zero(self):
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"""do_setup should throw error if nfs_used_ratio is less than 0."""
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drv = self._driver
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self.configuration.nfs_used_ratio = -1
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self.assertRaises(exception.NfsException,
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drv.do_setup,
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IsA(context.RequestContext))
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def test_setup_should_throw_error_if_used_ratio_greater_than_one(self):
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"""do_setup should throw error if nfs_used_ratio is greater than 1."""
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drv = self._driver
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self.configuration.nfs_used_ratio = 2
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self.assertRaises(exception.NfsException,
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drv.do_setup,
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IsA(context.RequestContext))
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def test_setup_should_throw_exception_if_nfs_client_is_not_installed(self):
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"""do_setup should throw error if nfs client is not installed."""
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mox = self._mox
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drv = self._driver
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self.configuration.nfs_shares_config = self.TEST_SHARES_CONFIG_FILE
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mox.StubOutWithMock(os.path, 'exists')
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os.path.exists(self.TEST_SHARES_CONFIG_FILE).AndReturn(True)
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mox.StubOutWithMock(drv, '_execute')
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drv._execute('mount.nfs', check_exit_code=False, run_as_root=True).\
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AndRaise(OSError(errno.ENOENT, 'No such file or directory'))
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mox.ReplayAll()
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self.assertRaises(exception.NfsException,
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drv.do_setup, IsA(context.RequestContext))
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mox.VerifyAll()
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def test_find_share_should_throw_error_if_there_is_no_mounted_shares(self):
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"""_find_share should throw error if there is no mounted shares."""
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drv = self._driver
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drv._mounted_shares = []
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self.assertRaises(exception.NfsNoSharesMounted, drv._find_share,
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self.TEST_SIZE_IN_GB)
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def test_find_share(self):
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"""_find_share simple use case."""
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mox = self._mox
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drv = self._driver
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drv._mounted_shares = [self.TEST_NFS_EXPORT1, self.TEST_NFS_EXPORT2]
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mox.StubOutWithMock(drv, '_get_capacity_info')
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drv._get_capacity_info(self.TEST_NFS_EXPORT1).\
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AndReturn((5 * units.Gi, 2 * units.Gi,
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2 * units.Gi))
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drv._get_capacity_info(self.TEST_NFS_EXPORT1).\
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AndReturn((5 * units.Gi, 2 * units.Gi,
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2 * units.Gi))
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drv._get_capacity_info(self.TEST_NFS_EXPORT2).\
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AndReturn((10 * units.Gi, 3 * units.Gi,
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1 * units.Gi))
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drv._get_capacity_info(self.TEST_NFS_EXPORT2).\
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AndReturn((10 * units.Gi, 3 * units.Gi,
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1 * units.Gi))
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mox.ReplayAll()
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self.assertEqual(self.TEST_NFS_EXPORT2,
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drv._find_share(self.TEST_SIZE_IN_GB))
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mox.VerifyAll()
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def test_find_share_should_throw_error_if_there_is_no_enough_place(self):
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"""_find_share should throw error if there is no share to host vol."""
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mox = self._mox
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drv = self._driver
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drv._mounted_shares = [self.TEST_NFS_EXPORT1, self.TEST_NFS_EXPORT2]
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mox.StubOutWithMock(drv, '_get_capacity_info')
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drv._get_capacity_info(self.TEST_NFS_EXPORT1).\
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AndReturn((5 * units.Gi, 0, 5 * units.Gi))
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drv._get_capacity_info(self.TEST_NFS_EXPORT2).\
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AndReturn((10 * units.Gi, 0,
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10 * units.Gi))
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mox.ReplayAll()
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self.assertRaises(exception.NfsNoSuitableShareFound, drv._find_share,
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self.TEST_SIZE_IN_GB)
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mox.VerifyAll()
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def _simple_volume(self):
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volume = DumbVolume()
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volume['provider_location'] = '127.0.0.1:/mnt'
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volume['name'] = 'volume_name'
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volume['size'] = 10
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return volume
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def test_create_sparsed_volume(self):
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mox = self._mox
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drv = self._driver
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volume = self._simple_volume()
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cfg.CONF.set_override('nfs_sparsed_volumes', True)
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mox.StubOutWithMock(drv, '_create_sparsed_file')
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mox.StubOutWithMock(drv, '_set_rw_permissions_for_all')
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drv._create_sparsed_file(IgnoreArg(), IgnoreArg())
|
|
drv._set_rw_permissions_for_all(IgnoreArg())
|
|
|
|
mox.ReplayAll()
|
|
|
|
drv._do_create_volume(volume)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_create_nonsparsed_volume(self):
|
|
mox = self._mox
|
|
drv = self._driver
|
|
self.configuration.nfs_sparsed_volumes = False
|
|
volume = self._simple_volume()
|
|
|
|
cfg.CONF.set_override('nfs_sparsed_volumes', False)
|
|
|
|
mox.StubOutWithMock(drv, '_create_regular_file')
|
|
mox.StubOutWithMock(drv, '_set_rw_permissions_for_all')
|
|
|
|
drv._create_regular_file(IgnoreArg(), IgnoreArg())
|
|
drv._set_rw_permissions_for_all(IgnoreArg())
|
|
|
|
mox.ReplayAll()
|
|
|
|
drv._do_create_volume(volume)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_create_volume_should_ensure_nfs_mounted(self):
|
|
"""create_volume ensures shares provided in config are mounted."""
|
|
mox = self._mox
|
|
drv = self._driver
|
|
|
|
self.stub_out_not_replaying(nfs, 'LOG')
|
|
self.stub_out_not_replaying(drv, '_find_share')
|
|
self.stub_out_not_replaying(drv, '_do_create_volume')
|
|
|
|
mox.StubOutWithMock(drv, '_ensure_shares_mounted')
|
|
drv._ensure_shares_mounted()
|
|
|
|
mox.ReplayAll()
|
|
|
|
volume = DumbVolume()
|
|
volume['size'] = self.TEST_SIZE_IN_GB
|
|
drv.create_volume(volume)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_create_volume_should_return_provider_location(self):
|
|
"""create_volume should return provider_location with found share."""
|
|
mox = self._mox
|
|
drv = self._driver
|
|
|
|
self.stub_out_not_replaying(nfs, 'LOG')
|
|
self.stub_out_not_replaying(drv, '_ensure_shares_mounted')
|
|
self.stub_out_not_replaying(drv, '_do_create_volume')
|
|
|
|
mox.StubOutWithMock(drv, '_find_share')
|
|
drv._find_share(self.TEST_SIZE_IN_GB).AndReturn(self.TEST_NFS_EXPORT1)
|
|
|
|
mox.ReplayAll()
|
|
|
|
volume = DumbVolume()
|
|
volume['size'] = self.TEST_SIZE_IN_GB
|
|
result = drv.create_volume(volume)
|
|
self.assertEqual(self.TEST_NFS_EXPORT1, result['provider_location'])
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_delete_volume(self):
|
|
"""delete_volume simple test case."""
|
|
mox = self._mox
|
|
drv = self._driver
|
|
|
|
self.stub_out_not_replaying(drv, '_ensure_share_mounted')
|
|
|
|
volume = DumbVolume()
|
|
volume['name'] = 'volume-123'
|
|
volume['provider_location'] = self.TEST_NFS_EXPORT1
|
|
|
|
mox.StubOutWithMock(drv, 'local_path')
|
|
drv.local_path(volume).AndReturn(self.TEST_LOCAL_PATH)
|
|
|
|
mox.StubOutWithMock(drv, '_execute')
|
|
drv._execute('rm', '-f', self.TEST_LOCAL_PATH, run_as_root=True)
|
|
|
|
mox.ReplayAll()
|
|
|
|
drv.delete_volume(volume)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_delete_should_ensure_share_mounted(self):
|
|
"""delete_volume should ensure that corresponding share is mounted."""
|
|
mox = self._mox
|
|
drv = self._driver
|
|
|
|
self.stub_out_not_replaying(drv, '_execute')
|
|
|
|
volume = DumbVolume()
|
|
volume['name'] = 'volume-123'
|
|
volume['provider_location'] = self.TEST_NFS_EXPORT1
|
|
|
|
mox.StubOutWithMock(drv, '_ensure_share_mounted')
|
|
drv._ensure_share_mounted(self.TEST_NFS_EXPORT1)
|
|
|
|
mox.ReplayAll()
|
|
|
|
drv.delete_volume(volume)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def test_delete_should_not_delete_if_provider_location_not_provided(self):
|
|
"""delete_volume shouldn't delete if provider_location missed."""
|
|
drv = self._driver
|
|
|
|
self.stubs.Set(drv, '_ensure_share_mounted', mock.Mock())
|
|
self.stubs.Set(drv, 'local_path', mock.Mock())
|
|
|
|
volume = DumbVolume()
|
|
volume['name'] = 'volume-123'
|
|
volume['provider_location'] = None
|
|
|
|
with mock.patch.object(drv, '_execute') as mock_execute:
|
|
drv.delete_volume(volume)
|
|
|
|
self.assertEqual(mock_execute.call_count, 0)
|
|
|
|
def test_get_volume_stats(self):
|
|
"""get_volume_stats must fill the correct values."""
|
|
mox = self._mox
|
|
drv = self._driver
|
|
|
|
drv._mounted_shares = [self.TEST_NFS_EXPORT1, self.TEST_NFS_EXPORT2]
|
|
|
|
mox.StubOutWithMock(drv, '_ensure_shares_mounted')
|
|
mox.StubOutWithMock(drv, '_get_capacity_info')
|
|
|
|
drv._ensure_shares_mounted()
|
|
|
|
drv._get_capacity_info(self.TEST_NFS_EXPORT1).\
|
|
AndReturn((10 * units.Gi, 2 * units.Gi,
|
|
2 * units.Gi))
|
|
drv._get_capacity_info(self.TEST_NFS_EXPORT2).\
|
|
AndReturn((20 * units.Gi, 3 * units.Gi,
|
|
3 * units.Gi))
|
|
|
|
mox.ReplayAll()
|
|
|
|
drv.get_volume_stats()
|
|
self.assertEqual(drv._stats['total_capacity_gb'], 30.0)
|
|
self.assertEqual(drv._stats['free_capacity_gb'], 5.0)
|
|
|
|
mox.VerifyAll()
|
|
|
|
def _check_is_share_eligible(self, total_size, total_available,
|
|
total_allocated, requested_volume_size):
|
|
with mock.patch.object(self._driver, '_get_capacity_info')\
|
|
as mock_get_capacity_info:
|
|
mock_get_capacity_info.return_value = (total_size,
|
|
total_available,
|
|
total_allocated)
|
|
return self._driver._is_share_eligible('fake_share',
|
|
requested_volume_size)
|
|
|
|
def test_is_share_eligible(self):
|
|
total_size = 100.0 * units.Gi
|
|
total_available = 90.0 * units.Gi
|
|
total_allocated = 10.0 * units.Gi
|
|
requested_volume_size = 1 # GiB
|
|
|
|
self.assertTrue(self._check_is_share_eligible(total_size,
|
|
total_available,
|
|
total_allocated,
|
|
requested_volume_size))
|
|
|
|
def test_is_share_eligible_above_used_ratio(self):
|
|
total_size = 100.0 * units.Gi
|
|
total_available = 4.0 * units.Gi
|
|
total_allocated = 96.0 * units.Gi
|
|
requested_volume_size = 1 # GiB
|
|
|
|
# Check used > used_ratio statement entered
|
|
self.assertFalse(self._check_is_share_eligible(total_size,
|
|
total_available,
|
|
total_allocated,
|
|
requested_volume_size))
|
|
|
|
def test_is_share_eligible_above_oversub_ratio(self):
|
|
total_size = 100.0 * units.Gi
|
|
total_available = 10.0 * units.Gi
|
|
total_allocated = 90.0 * units.Gi
|
|
requested_volume_size = 10 # GiB
|
|
|
|
# Check apparent_available <= requested_volume_size statement entered
|
|
self.assertFalse(self._check_is_share_eligible(total_size,
|
|
total_available,
|
|
total_allocated,
|
|
requested_volume_size))
|
|
|
|
def test_is_share_eligible_reserved_space_above_oversub_ratio(self):
|
|
total_size = 100.0 * units.Gi
|
|
total_available = 10.0 * units.Gi
|
|
total_allocated = 100.0 * units.Gi
|
|
requested_volume_size = 1 # GiB
|
|
|
|
# Check total_allocated / total_size >= oversub_ratio
|
|
# statement entered
|
|
self.assertFalse(self._check_is_share_eligible(total_size,
|
|
total_available,
|
|
total_allocated,
|
|
requested_volume_size))
|
|
|
|
def test_extend_volume(self):
|
|
"""Extend a volume by 1."""
|
|
drv = self._driver
|
|
volume = {'id': '80ee16b6-75d2-4d54-9539-ffc1b4b0fb10', 'size': 1,
|
|
'provider_location': 'nfs_share'}
|
|
path = 'path'
|
|
newSize = volume['size'] + 1
|
|
|
|
with mock.patch.object(image_utils, 'resize_image') as resize:
|
|
with mock.patch.object(drv, 'local_path', return_value=path):
|
|
with mock.patch.object(drv, '_is_share_eligible',
|
|
return_value=True):
|
|
with mock.patch.object(drv, '_is_file_size_equal',
|
|
return_value=True):
|
|
drv.extend_volume(volume, newSize)
|
|
|
|
resize.assert_called_once_with(path, newSize)
|
|
|
|
def test_extend_volume_failure(self):
|
|
"""Error during extend operation."""
|
|
drv = self._driver
|
|
volume = {'id': '80ee16b6-75d2-4d54-9539-ffc1b4b0fb10', 'size': 1,
|
|
'provider_location': 'nfs_share'}
|
|
|
|
with mock.patch.object(image_utils, 'resize_image'):
|
|
with mock.patch.object(drv, 'local_path', return_value='path'):
|
|
with mock.patch.object(drv, '_is_share_eligible',
|
|
return_value=True):
|
|
with mock.patch.object(drv, '_is_file_size_equal',
|
|
return_value=False):
|
|
self.assertRaises(exception.ExtendVolumeError,
|
|
drv.extend_volume, volume, 2)
|
|
|
|
def test_extend_volume_insufficient_space(self):
|
|
"""Insufficient space on nfs_share during extend operation."""
|
|
drv = self._driver
|
|
volume = {'id': '80ee16b6-75d2-4d54-9539-ffc1b4b0fb10', 'size': 1,
|
|
'provider_location': 'nfs_share'}
|
|
|
|
with mock.patch.object(image_utils, 'resize_image'):
|
|
with mock.patch.object(drv, 'local_path', return_value='path'):
|
|
with mock.patch.object(drv, '_is_share_eligible',
|
|
return_value=False):
|
|
with mock.patch.object(drv, '_is_file_size_equal',
|
|
return_value=False):
|
|
self.assertRaises(exception.ExtendVolumeError,
|
|
drv.extend_volume, volume, 2)
|
|
|
|
def test_is_file_size_equal(self):
|
|
"""File sizes are equal."""
|
|
drv = self._driver
|
|
path = 'fake/path'
|
|
size = 2
|
|
data = mock.MagicMock()
|
|
data.virtual_size = size * units.Gi
|
|
|
|
with mock.patch.object(image_utils, 'qemu_img_info',
|
|
return_value=data):
|
|
self.assertTrue(drv._is_file_size_equal(path, size))
|
|
|
|
def test_is_file_size_equal_false(self):
|
|
"""File sizes are not equal."""
|
|
drv = self._driver
|
|
path = 'fake/path'
|
|
size = 2
|
|
data = mock.MagicMock()
|
|
data.virtual_size = (size + 1) * units.Gi
|
|
|
|
with mock.patch.object(image_utils, 'qemu_img_info',
|
|
return_value=data):
|
|
self.assertFalse(drv._is_file_size_equal(path, size))
|