root / tests / qemu-iotests / 057 @ 9a05feab
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#!/usr/bin/env python |
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# |
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# Tests for internal snapshot. |
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# |
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# Copyright (C) 2013 IBM, Inc. |
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# |
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# Based on 055. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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|
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import time |
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import os |
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import iotests |
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from iotests import qemu_img, qemu_io |
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|
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test_drv_base_name = 'drive' |
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|
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class ImageSnapshotTestCase(iotests.QMPTestCase): |
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image_len = 120 * 1024 * 1024 # MB |
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|
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def __init__(self, *args): |
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self.expect = [] |
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super(ImageSnapshotTestCase, self).__init__(*args) |
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|
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def _setUp(self, test_img_base_name, image_num): |
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self.vm = iotests.VM() |
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for i in range(0, image_num): |
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filename = '%s%d' % (test_img_base_name, i) |
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img = os.path.join(iotests.test_dir, filename) |
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device = '%s%d' % (test_drv_base_name, i) |
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qemu_img('create', '-f', iotests.imgfmt, img, str(self.image_len))
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self.vm.add_drive(img) |
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self.expect.append({'image': img, 'device': device,
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'snapshots': [], |
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'snapshots_name_counter': 0}) |
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self.vm.launch() |
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|
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def tearDown(self): |
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self.vm.shutdown() |
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for dev_expect in self.expect: |
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os.remove(dev_expect['image']) |
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|
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def createSnapshotInTransaction(self, snapshot_num, abort = False): |
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actions = [] |
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for dev_expect in self.expect: |
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num = dev_expect['snapshots_name_counter'] |
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for j in range(0, snapshot_num): |
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name = '%s_sn%d' % (dev_expect['device'], num) |
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num = num + 1 |
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if abort == False: |
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dev_expect['snapshots'].append({'name': name})
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dev_expect['snapshots_name_counter'] = num |
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actions.append({
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'type': 'blockdev-snapshot-internal-sync', |
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'data': { 'device': dev_expect['device'],
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'name': name }, |
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}) |
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|
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if abort == True: |
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actions.append({
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'type': 'abort', |
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'data': {},
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}) |
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result = self.vm.qmp('transaction', actions = actions)
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if abort == True: |
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self.assert_qmp(result, 'error/class', 'GenericError') |
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else: |
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self.assert_qmp(result, 'return', {})
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def verifySnapshotInfo(self): |
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result = self.vm.qmp('query-block')
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# Verify each expected result |
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for dev_expect in self.expect: |
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# 1. Find the returned image value and snapshot info |
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image_result = None |
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for device in result['return']: |
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if device['device'] == dev_expect['device']: |
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image_result = device['inserted']['image'] |
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break |
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self.assertTrue(image_result != None) |
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# Do not consider zero snapshot case now |
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sn_list_result = image_result['snapshots'] |
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sn_list_expect = dev_expect['snapshots'] |
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|
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# 2. Verify it with expect |
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self.assertTrue(len(sn_list_result) == len(sn_list_expect)) |
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for sn_expect in sn_list_expect: |
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sn_result = None |
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for sn in sn_list_result: |
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if sn_expect['name'] == sn['name']: |
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sn_result = sn |
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break |
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self.assertTrue(sn_result != None) |
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# Fill in the detail info |
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sn_expect.update(sn_result) |
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|
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def deleteSnapshot(self, device, id = None, name = None): |
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sn_list_expect = None |
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sn_expect = None |
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self.assertTrue(id != None or name != None) |
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# Fill in the detail info include ID |
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self.verifySnapshotInfo() |
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#find the expected snapshot list |
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for dev_expect in self.expect: |
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if dev_expect['device'] == device: |
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sn_list_expect = dev_expect['snapshots'] |
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break |
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self.assertTrue(sn_list_expect != None) |
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if id != None and name != None: |
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for sn in sn_list_expect: |
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if sn['id'] == id and sn['name'] == name: |
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sn_expect = sn |
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result = \ |
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self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = device, |
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id = id, |
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name = name) |
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break |
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elif id != None: |
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for sn in sn_list_expect: |
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if sn['id'] == id: |
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sn_expect = sn |
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result = \ |
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self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = device, |
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id = id) |
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break |
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else: |
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for sn in sn_list_expect: |
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if sn['name'] == name: |
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sn_expect = sn |
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result = \ |
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self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = device, |
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name = name) |
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break |
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self.assertTrue(sn_expect != None) |
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self.assert_qmp(result, 'return', sn_expect) |
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sn_list_expect.remove(sn_expect) |
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class TestSingleTransaction(ImageSnapshotTestCase): |
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def setUp(self): |
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self._setUp('test_a.img', 1)
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def test_create(self): |
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self.createSnapshotInTransaction(1) |
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self.verifySnapshotInfo() |
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def test_error_name_empty(self): |
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actions = [{'type': 'blockdev-snapshot-internal-sync',
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'data': { 'device': self.expect[0]['device'],
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'name': '' }, |
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}] |
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result = self.vm.qmp('transaction', actions = actions)
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self.assert_qmp(result, 'error/class', 'GenericError') |
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def test_error_device(self): |
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actions = [{'type': 'blockdev-snapshot-internal-sync',
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'data': { 'device': 'drive_error',
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'name': 'a' }, |
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}] |
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result = self.vm.qmp('transaction', actions = actions)
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self.assert_qmp(result, 'error/class', 'DeviceNotFound') |
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def test_error_exist(self): |
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self.createSnapshotInTransaction(1) |
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self.verifySnapshotInfo() |
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actions = [{'type': 'blockdev-snapshot-internal-sync',
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'data': { 'device': self.expect[0]['device'],
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'name': self.expect[0]['snapshots'][0] }, |
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}] |
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result = self.vm.qmp('transaction', actions = actions)
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self.assert_qmp(result, 'error/class', 'GenericError') |
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class TestMultipleTransaction(ImageSnapshotTestCase): |
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def setUp(self): |
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self._setUp('test_b.img', 2)
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def test_create(self): |
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self.createSnapshotInTransaction(3) |
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self.verifySnapshotInfo() |
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def test_abort(self): |
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self.createSnapshotInTransaction(2) |
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self.verifySnapshotInfo() |
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self.createSnapshotInTransaction(3, abort = True) |
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self.verifySnapshotInfo() |
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class TestSnapshotDelete(ImageSnapshotTestCase): |
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def setUp(self): |
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self._setUp('test_c.img', 1)
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def test_delete_with_id(self): |
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self.createSnapshotInTransaction(2) |
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self.verifySnapshotInfo() |
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self.deleteSnapshot(self.expect[0]['device'], |
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id = self.expect[0]['snapshots'][0]['id']) |
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self.verifySnapshotInfo() |
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def test_delete_with_name(self): |
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self.createSnapshotInTransaction(3) |
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self.verifySnapshotInfo() |
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self.deleteSnapshot(self.expect[0]['device'], |
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name = self.expect[0]['snapshots'][1]['name']) |
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self.verifySnapshotInfo() |
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def test_delete_with_id_and_name(self): |
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self.createSnapshotInTransaction(4) |
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self.verifySnapshotInfo() |
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self.deleteSnapshot(self.expect[0]['device'], |
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id = self.expect[0]['snapshots'][2]['id'], |
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name = self.expect[0]['snapshots'][2]['name']) |
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self.verifySnapshotInfo() |
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def test_error_device(self): |
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result = self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = 'drive_error', |
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id = '0') |
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self.assert_qmp(result, 'error/class', 'DeviceNotFound') |
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def test_error_no_id_and_name(self): |
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result = self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = self.expect[0]['device']) |
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self.assert_qmp(result, 'error/class', 'GenericError') |
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def test_error_snapshot_not_exist(self): |
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self.createSnapshotInTransaction(2) |
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self.verifySnapshotInfo() |
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result = self.vm.qmp('blockdev-snapshot-delete-internal-sync',
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device = self.expect[0]['device'], |
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id = self.expect[0]['snapshots'][0]['id'], |
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name = self.expect[0]['snapshots'][1]['name']) |
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self.assert_qmp(result, 'error/class', 'GenericError') |
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if __name__ == '__main__': |
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iotests.main(supported_fmts=['qcow2']) |