xref: /qemu/tests/qemu-iotests/040 (revision bfa3ab61) 
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 wait_for_complete(self, need_ready=False):
39        completed = False
40        ready = False
41        while not completed:
42            for event in self.vm.get_qmp_events(wait=True):
43                if event['event'] == 'BLOCK_JOB_COMPLETED':
44                    self.assert_qmp(event, 'data/type', 'commit')
45                    self.assert_qmp(event, 'data/device', 'drive0')
46                    self.assert_qmp(event, 'data/offset', event['data']['len'])
47                    if need_ready:
48                        self.assertTrue(ready, "Expecting BLOCK_JOB_COMPLETED event")
49                    completed = True
50                elif event['event'] == 'BLOCK_JOB_READY':
51                    ready = True
52                    self.assert_qmp(event, 'data/type', 'commit')
53                    self.assert_qmp(event, 'data/device', 'drive0')
54                    self.vm.qmp('block-job-complete', device='drive0')
55
56        self.assert_no_active_block_jobs()
57        self.vm.shutdown()
58
59    def run_commit_test(self, top, base, need_ready=False):
60        self.assert_no_active_block_jobs()
61        result = self.vm.qmp('block-commit', device='drive0', top=top, base=base)
62        self.assert_qmp(result, 'return', {})
63        self.wait_for_complete(need_ready)
64
65    def run_default_commit_test(self):
66        self.assert_no_active_block_jobs()
67        result = self.vm.qmp('block-commit', device='drive0')
68        self.assert_qmp(result, 'return', {})
69        self.wait_for_complete()
70
71class TestSingleDrive(ImageCommitTestCase):
72    image_len = 1 * 1024 * 1024
73    test_len = 1 * 1024 * 256
74
75    def setUp(self):
76        iotests.create_image(backing_img, self.image_len)
77        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
78        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
79        qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', backing_img)
80        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
81        self.vm = iotests.VM().add_drive(test_img)
82        self.vm.launch()
83
84    def tearDown(self):
85        self.vm.shutdown()
86        os.remove(test_img)
87        os.remove(mid_img)
88        os.remove(backing_img)
89
90    def test_commit(self):
91        self.run_commit_test(mid_img, backing_img)
92        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
93        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
94
95    def test_device_not_found(self):
96        result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % mid_img)
97        self.assert_qmp(result, 'error/class', 'DeviceNotFound')
98
99    def test_top_same_base(self):
100        self.assert_no_active_block_jobs()
101        result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % backing_img)
102        self.assert_qmp(result, 'error/class', 'GenericError')
103        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % backing_img)
104
105    def test_top_invalid(self):
106        self.assert_no_active_block_jobs()
107        result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % backing_img)
108        self.assert_qmp(result, 'error/class', 'GenericError')
109        self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
110
111    def test_base_invalid(self):
112        self.assert_no_active_block_jobs()
113        result = self.vm.qmp('block-commit', device='drive0', top='%s' % mid_img, base='badfile')
114        self.assert_qmp(result, 'error/class', 'GenericError')
115        self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
116
117    def test_top_is_active(self):
118        self.run_commit_test(test_img, backing_img, need_ready=True)
119        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
120        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
121
122    def test_top_is_default_active(self):
123        self.run_default_commit_test()
124        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
125        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
126
127    def test_top_and_base_reversed(self):
128        self.assert_no_active_block_jobs()
129        result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % mid_img)
130        self.assert_qmp(result, 'error/class', 'GenericError')
131        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % mid_img)
132
133
134class TestRelativePaths(ImageCommitTestCase):
135    image_len = 1 * 1024 * 1024
136    test_len = 1 * 1024 * 256
137
138    dir1 = "dir1"
139    dir2 = "dir2/"
140    dir3 = "dir2/dir3/"
141
142    test_img = os.path.join(iotests.test_dir, dir3, 'test.img')
143    mid_img = "../mid.img"
144    backing_img = "../dir1/backing.img"
145
146    backing_img_abs = os.path.join(iotests.test_dir, dir1, 'backing.img')
147    mid_img_abs = os.path.join(iotests.test_dir, dir2, 'mid.img')
148
149    def setUp(self):
150        try:
151            os.mkdir(os.path.join(iotests.test_dir, self.dir1))
152            os.mkdir(os.path.join(iotests.test_dir, self.dir2))
153            os.mkdir(os.path.join(iotests.test_dir, self.dir3))
154        except OSError as exception:
155            if exception.errno != errno.EEXIST:
156                raise
157        iotests.create_image(self.backing_img_abs, TestRelativePaths.image_len)
158        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.backing_img_abs, self.mid_img_abs)
159        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.mid_img_abs, self.test_img)
160        qemu_img('rebase', '-u', '-b', self.backing_img, self.mid_img_abs)
161        qemu_img('rebase', '-u', '-b', self.mid_img, self.test_img)
162        qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', self.backing_img_abs)
163        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', self.mid_img_abs)
164        self.vm = iotests.VM().add_drive(self.test_img)
165        self.vm.launch()
166
167    def tearDown(self):
168        self.vm.shutdown()
169        os.remove(self.test_img)
170        os.remove(self.mid_img_abs)
171        os.remove(self.backing_img_abs)
172        try:
173            os.rmdir(os.path.join(iotests.test_dir, self.dir1))
174            os.rmdir(os.path.join(iotests.test_dir, self.dir3))
175            os.rmdir(os.path.join(iotests.test_dir, self.dir2))
176        except OSError as exception:
177            if exception.errno != errno.EEXIST and exception.errno != errno.ENOTEMPTY:
178                raise
179
180    def test_commit(self):
181        self.run_commit_test(self.mid_img, self.backing_img)
182        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
183        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
184
185    def test_device_not_found(self):
186        result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % self.mid_img)
187        self.assert_qmp(result, 'error/class', 'DeviceNotFound')
188
189    def test_top_same_base(self):
190        self.assert_no_active_block_jobs()
191        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='%s' % self.mid_img)
192        self.assert_qmp(result, 'error/class', 'GenericError')
193        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
194
195    def test_top_invalid(self):
196        self.assert_no_active_block_jobs()
197        result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % self.backing_img)
198        self.assert_qmp(result, 'error/class', 'GenericError')
199        self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
200
201    def test_base_invalid(self):
202        self.assert_no_active_block_jobs()
203        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='badfile')
204        self.assert_qmp(result, 'error/class', 'GenericError')
205        self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
206
207    def test_top_is_active(self):
208        self.run_commit_test(self.test_img, self.backing_img)
209        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
210        self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
211
212    def test_top_and_base_reversed(self):
213        self.assert_no_active_block_jobs()
214        result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.backing_img, base='%s' % self.mid_img)
215        self.assert_qmp(result, 'error/class', 'GenericError')
216        self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
217
218
219class TestSetSpeed(ImageCommitTestCase):
220    image_len = 80 * 1024 * 1024 # MB
221
222    def setUp(self):
223        qemu_img('create', backing_img, str(TestSetSpeed.image_len))
224        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
225        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
226        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 0 512', test_img)
227        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
228        self.vm = iotests.VM().add_drive(test_img)
229        self.vm.launch()
230
231    def tearDown(self):
232        self.vm.shutdown()
233        os.remove(test_img)
234        os.remove(mid_img)
235        os.remove(backing_img)
236
237    def test_set_speed(self):
238        self.assert_no_active_block_jobs()
239
240        self.vm.pause_drive('drive0')
241        result = self.vm.qmp('block-commit', device='drive0', top=mid_img, speed=1024 * 1024)
242        self.assert_qmp(result, 'return', {})
243
244        # Ensure the speed we set was accepted
245        result = self.vm.qmp('query-block-jobs')
246        self.assert_qmp(result, 'return[0]/device', 'drive0')
247        self.assert_qmp(result, 'return[0]/speed', 1024 * 1024)
248
249        self.cancel_and_wait(resume=True)
250
251class TestActiveZeroLengthImage(TestSingleDrive):
252    image_len = 0
253
254if __name__ == '__main__':
255    iotests.main(supported_fmts=['qcow2', 'qed'])
256