198 lines
7.8 KiB
Python
198 lines
7.8 KiB
Python
# Copyright 2012 OpenStack Foundation
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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 tempfile
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import mock
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from oslo_concurrency import processutils
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from oslo_utils import units
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from nova import test
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from nova import utils
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from nova.virt.disk import api
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from nova.virt.disk.mount import api as mount
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from nova.virt.disk.vfs import localfs
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from nova.virt.image import model as imgmodel
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class FakeMount(object):
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device = None
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@staticmethod
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def instance_for_format(image, mountdir, partition):
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return FakeMount()
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def get_dev(self):
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pass
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def unget_dev(self):
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pass
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class APITestCase(test.NoDBTestCase):
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@mock.patch.object(localfs.VFSLocalFS, 'get_image_fs', autospec=True,
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return_value='')
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def test_can_resize_need_fs_type_specified(self, mock_image_fs):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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image = imgmodel.LocalFileImage(imgfile.name, imgmodel.FORMAT_QCOW2)
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self.assertFalse(api.is_image_extendable(image))
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self.assertTrue(mock_image_fs.called)
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@mock.patch.object(utils, 'execute', autospec=True)
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def test_is_image_extendable_raw(self, mock_exec):
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imgfile = tempfile.NamedTemporaryFile()
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image = imgmodel.LocalFileImage(imgfile, imgmodel.FORMAT_RAW)
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self.addCleanup(imgfile.close)
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self.assertTrue(api.is_image_extendable(image))
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mock_exec.assert_called_once_with('e2label', imgfile)
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@mock.patch('oslo_concurrency.processutils.execute', autospec=True)
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def test_resize2fs_success(self, mock_exec):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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api.resize2fs(imgfile)
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mock_exec.assert_has_calls(
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[mock.call('e2fsck',
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'-fp',
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imgfile,
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check_exit_code=[0, 1, 2]),
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mock.call('resize2fs',
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imgfile,
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check_exit_code=False)])
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@mock.patch('oslo_concurrency.processutils.execute')
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@mock.patch('nova.privsep.fs.resize2fs')
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@mock.patch('nova.privsep.fs.e2fsck')
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def test_resize2fs_success_as_root(self, mock_fsck, mock_resize,
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mock_exec):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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api.resize2fs(imgfile, run_as_root=True)
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mock_exec.assert_not_called()
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mock_resize.assert_called()
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mock_fsck.assert_called()
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@mock.patch('oslo_concurrency.processutils.execute', autospec=True,
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side_effect=processutils.ProcessExecutionError("fs error"))
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def test_resize2fs_e2fsck_fails(self, mock_exec):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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api.resize2fs(imgfile)
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mock_exec.assert_called_once_with('e2fsck',
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'-fp',
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imgfile,
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check_exit_code=[0, 1, 2])
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@mock.patch.object(api, 'can_resize_image', autospec=True,
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return_value=True)
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@mock.patch.object(api, 'is_image_extendable', autospec=True,
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return_value=True)
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@mock.patch.object(api, 'resize2fs', autospec=True)
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@mock.patch.object(mount.Mount, 'instance_for_format')
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@mock.patch.object(utils, 'execute', autospec=True)
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def test_extend_qcow_success(self, mock_exec, mock_inst, mock_resize,
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mock_extendable, mock_can_resize):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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imgsize = 10
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device = "/dev/sdh"
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image = imgmodel.LocalFileImage(imgfile, imgmodel.FORMAT_QCOW2)
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self.flags(resize_fs_using_block_device=True)
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mounter = FakeMount.instance_for_format(
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image, None, None)
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mounter.device = device
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mock_inst.return_value = mounter
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with test.nested(
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mock.patch.object(mounter, 'get_dev', autospec=True,
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return_value=True),
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mock.patch.object(mounter, 'unget_dev', autospec=True),
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) as (mock_get_dev, mock_unget_dev):
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api.extend(image, imgsize)
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mock_can_resize.assert_called_once_with(imgfile, imgsize)
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mock_exec.assert_called_once_with('qemu-img', 'resize',
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imgfile, imgsize)
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mock_extendable.assert_called_once_with(image)
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mock_inst.assert_called_once_with(image, None, None)
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mock_resize.assert_called_once_with(mounter.device,
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run_as_root=True,
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check_exit_code=[0])
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mock_get_dev.assert_called_once_with()
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mock_unget_dev.assert_called_once_with()
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@mock.patch.object(api, 'can_resize_image', autospec=True,
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return_value=True)
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@mock.patch.object(api, 'is_image_extendable', autospec=True)
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@mock.patch.object(utils, 'execute', autospec=True)
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def test_extend_qcow_no_resize(self, mock_execute, mock_extendable,
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mock_can_resize_image):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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imgsize = 10
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image = imgmodel.LocalFileImage(imgfile, imgmodel.FORMAT_QCOW2)
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self.flags(resize_fs_using_block_device=False)
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api.extend(image, imgsize)
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mock_can_resize_image.assert_called_once_with(imgfile, imgsize)
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mock_execute.assert_called_once_with('qemu-img', 'resize', imgfile,
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imgsize)
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self.assertFalse(mock_extendable.called)
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@mock.patch.object(api, 'can_resize_image', autospec=True,
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return_value=True)
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@mock.patch('nova.privsep.libvirt.ploop_resize')
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def test_extend_ploop(self, mock_ploop_resize, mock_can_resize_image):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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imgsize = 10 * units.Gi
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image = imgmodel.LocalFileImage(imgfile, imgmodel.FORMAT_PLOOP)
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api.extend(image, imgsize)
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mock_can_resize_image.assert_called_once_with(image.path,
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imgsize)
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mock_ploop_resize.assert_called_once_with(imgfile, imgsize)
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@mock.patch.object(api, 'can_resize_image', autospec=True,
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return_value=True)
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@mock.patch.object(api, 'resize2fs', autospec=True)
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@mock.patch.object(utils, 'execute', autospec=True)
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def test_extend_raw_success(self, mock_exec, mock_resize,
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mock_can_resize):
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imgfile = tempfile.NamedTemporaryFile()
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self.addCleanup(imgfile.close)
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imgsize = 10
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image = imgmodel.LocalFileImage(imgfile, imgmodel.FORMAT_RAW)
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api.extend(image, imgsize)
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mock_exec.assert_has_calls(
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[mock.call('qemu-img', 'resize', imgfile, imgsize),
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mock.call('e2label', image.path)])
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mock_resize.assert_called_once_with(imgfile, run_as_root=False,
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check_exit_code=[0])
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mock_can_resize.assert_called_once_with(imgfile, imgsize)
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