xref: /qemu/tests/qemu-iotests/040 (revision 72ac97cd) 
1#!/usr/bin/env python
2#
3# Tests for image block commit.
4#
5# Copyright (C) 2012 IBM, Corp.
6# Copyright (C) 2012 Red Hat, Inc.
7#
8# This program is free software; you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation; either version 2 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program.  If not, see <http://www.gnu.org/licenses/>.
20#
21# Test for live block commit
22# Derived from Image Streaming Test 030
23
24import time
25import os
26import iotests
27from iotests import qemu_img, qemu_io
28import struct
29import errno
30
31backing_img = os.path.join(iotests.test_dir, 'backing.img')
32mid_img = os.path.join(iotests.test_dir, 'mid.img')
33test_img = os.path.join(iotests.test_dir, 'test.img')
34
35class ImageCommitTestCase(iotests.QMPTestCase):
36    '''Abstract base class for image commit test cases'''
37
38    def run_commit_test(self, top, base):
39        self.assert_no_active_block_jobs()
40        result = self.vm.qmp('block-commit', device='drive0', top=top, base=base)
41        self.assert_qmp(result, 'return', {})
42
43        completed = False
44        while not completed:
45            for event in self.vm.get_qmp_events(wait=True):
46                if event['event'] == 'BLOCK_JOB_COMPLETED':
47                    self.assert_qmp(event, 'data/type', 'commit')
48                    self.assert_qmp(event, 'data/device', 'drive0')
49                    self.assert_qmp(event, 'data/offset', self.image_len)
50                    self.assert_qmp(event, 'data/len', self.image_len)
51                    completed = True
52                elif event['event'] == 'BLOCK_JOB_READY':
53                    self.assert_qmp(event, 'data/type', 'commit')
54                    self.assert_qmp(event, 'data/device', 'drive0')
55                    self.assert_qmp(event, 'data/len', self.image_len)
56                    self.vm.qmp('block-job-complete', device='drive0')
57
58        self.assert_no_active_block_jobs()
59        self.vm.shutdown()
60
61class TestSingleDrive(ImageCommitTestCase):
62    image_len = 1 * 1024 * 1024
63    test_len = 1 * 1024 * 256
64
65    def setUp(self):
66        iotests.create_image(backing_img, TestSingleDrive.image_len)
67        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
68        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
69        qemu_io('-c', 'write -P 0xab 0 524288', backing_img)
70        qemu_io('-c', 'write -P 0xef 524288 524288', mid_img)
71        self.vm = iotests.VM().add_drive(test_img)
72        self.vm.launch()
73
74    def tearDown(self):
75        self.vm.shutdown()
76        os.remove(test_img)
77        os.remove(mid_img)
78        os.remove(backing_img)
79
80    def test_commit(self):
81        self.run_commit_test(mid_img, backing_img)
82        self.assertEqual(-1, qemu_io('-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
83        self.assertEqual(-1, qemu_io('-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
84
85    def test_device_not_found(self):
86        result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % mid_img)
87        self.assert_qmp(result, 'error/class', 'DeviceNotFound')
88
89    def test_top_same_base(self):
90        self.assert_no_active_block_jobs()
91        result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % backing_img)
92        self.assert_qmp(result, 'error/class', 'GenericError')
93        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % backing_img)
94
95    def test_top_invalid(self):
96        self.assert_no_active_block_jobs()
97        result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % backing_img)
98        self.assert_qmp(result, 'error/class', 'GenericError')
99        self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
100
101    def test_base_invalid(self):
102        self.assert_no_active_block_jobs()
103        result = self.vm.qmp('block-commit', device='drive0', top='%s' % mid_img, base='badfile')
104        self.assert_qmp(result, 'error/class', 'GenericError')
105        self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
106
107    def test_top_is_active(self):
108        self.run_commit_test(test_img, backing_img)
109        self.assertEqual(-1, qemu_io('-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
110        self.assertEqual(-1, qemu_io('-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
111
112    def test_top_and_base_reversed(self):
113        self.assert_no_active_block_jobs()
114        result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % mid_img)
115        self.assert_qmp(result, 'error/class', 'GenericError')
116        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % mid_img)
117
118    def test_top_omitted(self):
119        self.assert_no_active_block_jobs()
120        result = self.vm.qmp('block-commit', device='drive0')
121        self.assert_qmp(result, 'error/class', 'GenericError')
122        self.assert_qmp(result, 'error/desc', "Parameter 'top' is missing")
123
124class TestRelativePaths(ImageCommitTestCase):
125    image_len = 1 * 1024 * 1024
126    test_len = 1 * 1024 * 256
127
128    dir1 = "dir1"
129    dir2 = "dir2/"
130    dir3 = "dir2/dir3/"
131
132    test_img = os.path.join(iotests.test_dir, dir3, 'test.img')
133    mid_img = "../mid.img"
134    backing_img = "../dir1/backing.img"
135
136    backing_img_abs = os.path.join(iotests.test_dir, dir1, 'backing.img')
137    mid_img_abs = os.path.join(iotests.test_dir, dir2, 'mid.img')
138
139    def setUp(self):
140        try:
141            os.mkdir(os.path.join(iotests.test_dir, self.dir1))
142            os.mkdir(os.path.join(iotests.test_dir, self.dir2))
143            os.mkdir(os.path.join(iotests.test_dir, self.dir3))
144        except OSError as exception:
145            if exception.errno != errno.EEXIST:
146                raise
147        iotests.create_image(self.backing_img_abs, TestRelativePaths.image_len)
148        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.backing_img_abs, self.mid_img_abs)
149        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.mid_img_abs, self.test_img)
150        qemu_img('rebase', '-u', '-b', self.backing_img, self.mid_img_abs)
151        qemu_img('rebase', '-u', '-b', self.mid_img, self.test_img)
152        qemu_io('-c', 'write -P 0xab 0 524288', self.backing_img_abs)
153        qemu_io('-c', 'write -P 0xef 524288 524288', self.mid_img_abs)
154        self.vm = iotests.VM().add_drive(self.test_img)
155        self.vm.launch()
156
157    def tearDown(self):
158        self.vm.shutdown()
159        os.remove(self.test_img)
160        os.remove(self.mid_img_abs)
161        os.remove(self.backing_img_abs)
162        try:
163            os.rmdir(os.path.join(iotests.test_dir, self.dir1))
164            os.rmdir(os.path.join(iotests.test_dir, self.dir3))
165            os.rmdir(os.path.join(iotests.test_dir, self.dir2))
166        except OSError as exception:
167            if exception.errno != errno.EEXIST and exception.errno != errno.ENOTEMPTY:
168                raise
169
170    def test_commit(self):
171        self.run_commit_test(self.mid_img, self.backing_img)
172        self.assertEqual(-1, qemu_io('-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
173        self.assertEqual(-1, qemu_io('-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
174
175    def test_device_not_found(self):
176        result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % self.mid_img)
177        self.assert_qmp(result, 'error/class', 'DeviceNotFound')
178
179    def test_top_same_base(self):
180        self.assert_no_active_block_jobs()
181        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='%s' % self.mid_img)
182        self.assert_qmp(result, 'error/class', 'GenericError')
183        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
184
185    def test_top_invalid(self):
186        self.assert_no_active_block_jobs()
187        result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % self.backing_img)
188        self.assert_qmp(result, 'error/class', 'GenericError')
189        self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
190
191    def test_base_invalid(self):
192        self.assert_no_active_block_jobs()
193        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='badfile')
194        self.assert_qmp(result, 'error/class', 'GenericError')
195        self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
196
197    def test_top_is_active(self):
198        self.run_commit_test(self.test_img, self.backing_img)
199        self.assertEqual(-1, qemu_io('-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
200        self.assertEqual(-1, qemu_io('-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
201
202    def test_top_and_base_reversed(self):
203        self.assert_no_active_block_jobs()
204        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.backing_img, base='%s' % self.mid_img)
205        self.assert_qmp(result, 'error/class', 'GenericError')
206        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
207
208
209class TestSetSpeed(ImageCommitTestCase):
210    image_len = 80 * 1024 * 1024 # MB
211
212    def setUp(self):
213        qemu_img('create', backing_img, str(TestSetSpeed.image_len))
214        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
215        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
216        qemu_io('-c', 'write -P 0x1 0 512', test_img)
217        qemu_io('-c', 'write -P 0xef 524288 524288', mid_img)
218        self.vm = iotests.VM().add_drive(test_img)
219        self.vm.launch()
220
221    def tearDown(self):
222        self.vm.shutdown()
223        os.remove(test_img)
224        os.remove(mid_img)
225        os.remove(backing_img)
226
227    def test_set_speed(self):
228        self.assert_no_active_block_jobs()
229
230        self.vm.pause_drive('drive0')
231        result = self.vm.qmp('block-commit', device='drive0', top=mid_img, speed=1024 * 1024)
232        self.assert_qmp(result, 'return', {})
233
234        # Ensure the speed we set was accepted
235        result = self.vm.qmp('query-block-jobs')
236        self.assert_qmp(result, 'return[0]/device', 'drive0')
237        self.assert_qmp(result, 'return[0]/speed', 1024 * 1024)
238
239        self.cancel_and_wait(resume=True)
240
241
242if __name__ == '__main__':
243    iotests.main(supported_fmts=['qcow2', 'qed'])
244