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