tests/qemu-iotests/041

   1 #!/usr/bin/env python
   2 #
   3 # Tests for image mirroring.
   4 #
   5 # Copyright (C) 2012 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 import time
  22 import os
  23 import iotests
  24 from iotests import qemu_img, qemu_io
  25
  26 backing_img = os.path.join(iotests.test_dir, 'backing.img')
  27 target_backing_img = os.path.join(iotests.test_dir, 'target-backing.img')
  28 test_img = os.path.join(iotests.test_dir, 'test.img')
  29 target_img = os.path.join(iotests.test_dir, 'target.img')
  30
  31 quorum_img1 = os.path.join(iotests.test_dir, 'quorum1.img')
  32 quorum_img2 = os.path.join(iotests.test_dir, 'quorum2.img')
  33 quorum_img3 = os.path.join(iotests.test_dir, 'quorum3.img')
  34 quorum_repair_img = os.path.join(iotests.test_dir, 'quorum_repair.img')
  35 quorum_snapshot_file = os.path.join(iotests.test_dir, 'quorum_snapshot.img')
  36
  37 class TestSingleDrive(iotests.QMPTestCase):
  38     image_len = 1 * 1024 * 1024 # MB
  39     qmp_cmd = 'drive-mirror'
  40     qmp_target = target_img
  41     not_found_error = 'DeviceNotFound'
  42
  43     def setUp(self):
  44         iotests.create_image(backing_img, self.image_len)
  45         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
  46         self.vm = iotests.VM().add_drive(test_img)
  47         if iotests.qemu_default_machine == 'pc':
  48             self.vm.add_drive(None, 'media=cdrom', 'ide')
  49         self.vm.launch()
  50
  51     def tearDown(self):
  52         self.vm.shutdown()
  53         os.remove(test_img)
  54         os.remove(backing_img)
  55         try:
  56             os.remove(target_img)
  57         except OSError:
  58             pass
  59
  60     def test_complete(self):
  61         self.assert_no_active_block_jobs()
  62
  63         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
  64                              target=self.qmp_target)
  65         self.assert_qmp(result, 'return', {})
  66
  67         self.complete_and_wait()
  68         result = self.vm.qmp('query-block')
  69         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
  70         self.vm.shutdown()
  71         self.assertTrue(iotests.compare_images(test_img, target_img),
  72                         'target image does not match source after mirroring')
  73
  74     def test_cancel(self):
  75         self.assert_no_active_block_jobs()
  76
  77         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
  78                              target=self.qmp_target)
  79         self.assert_qmp(result, 'return', {})
  80
  81         self.cancel_and_wait(force=True)
  82         result = self.vm.qmp('query-block')
  83         self.assert_qmp(result, 'return[0]/inserted/file', test_img)
  84         self.vm.shutdown()
  85
  86     def test_cancel_after_ready(self):
  87         self.assert_no_active_block_jobs()
  88
  89         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
  90                              target=self.qmp_target)
  91         self.assert_qmp(result, 'return', {})
  92
  93         self.wait_ready_and_cancel()
  94         result = self.vm.qmp('query-block')
  95         self.assert_qmp(result, 'return[0]/inserted/file', test_img)
  96         self.vm.shutdown()
  97         self.assertTrue(iotests.compare_images(test_img, target_img),
  98                         'target image does not match source after mirroring')
  99
 100     def test_pause(self):
 101         self.assert_no_active_block_jobs()
 102
 103         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
 104                              target=self.qmp_target)
 105         self.assert_qmp(result, 'return', {})
 106
 107         result = self.vm.qmp('block-job-pause', device='drive0')
 108         self.assert_qmp(result, 'return', {})
 109
 110         time.sleep(1)
 111         result = self.vm.qmp('query-block-jobs')
 112         offset = self.dictpath(result, 'return[0]/offset')
 113
 114         time.sleep(1)
 115         result = self.vm.qmp('query-block-jobs')
 116         self.assert_qmp(result, 'return[0]/offset', offset)
 117
 118         result = self.vm.qmp('block-job-resume', device='drive0')
 119         self.assert_qmp(result, 'return', {})
 120
 121         self.complete_and_wait()
 122         self.vm.shutdown()
 123         self.assertTrue(iotests.compare_images(test_img, target_img),
 124                         'target image does not match source after mirroring')
 125
 126     def test_small_buffer(self):
 127         self.assert_no_active_block_jobs()
 128
 129         # A small buffer is rounded up automatically
 130         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
 131                              buf_size=4096, target=self.qmp_target)
 132         self.assert_qmp(result, 'return', {})
 133
 134         self.complete_and_wait()
 135         result = self.vm.qmp('query-block')
 136         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 137         self.vm.shutdown()
 138         self.assertTrue(iotests.compare_images(test_img, target_img),
 139                         'target image does not match source after mirroring')
 140
 141     def test_small_buffer2(self):
 142         self.assert_no_active_block_jobs()
 143
 144         qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,size=%d'
 145                         % (self.image_len, self.image_len), target_img)
 146         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
 147                              buf_size=65536, mode='existing', target=self.qmp_target)
 148         self.assert_qmp(result, 'return', {})
 149
 150         self.complete_and_wait()
 151         result = self.vm.qmp('query-block')
 152         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 153         self.vm.shutdown()
 154         self.assertTrue(iotests.compare_images(test_img, target_img),
 155                         'target image does not match source after mirroring')
 156
 157     def test_large_cluster(self):
 158         self.assert_no_active_block_jobs()
 159
 160         qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s'
 161                         % (self.image_len, backing_img), target_img)
 162         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
 163                              mode='existing', target=self.qmp_target)
 164         self.assert_qmp(result, 'return', {})
 165
 166         self.complete_and_wait()
 167         result = self.vm.qmp('query-block')
 168         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 169         self.vm.shutdown()
 170         self.assertTrue(iotests.compare_images(test_img, target_img),
 171                         'target image does not match source after mirroring')
 172
 173     def test_medium_not_found(self):
 174         if iotests.qemu_default_machine != 'pc':
 175             return
 176
 177         result = self.vm.qmp(self.qmp_cmd, device='ide1-cd0', sync='full',
 178                              target=self.qmp_target)
 179         self.assert_qmp(result, 'error/class', self.not_found_error)
 180
 181     def test_image_not_found(self):
 182         result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full',
 183                              mode='existing', target=self.qmp_target)
 184         self.assert_qmp(result, 'error/class', 'GenericError')
 185
 186     def test_device_not_found(self):
 187         result = self.vm.qmp(self.qmp_cmd, device='nonexistent', sync='full',
 188                              target=self.qmp_target)
 189         self.assert_qmp(result, 'error/class', self.not_found_error)
 190
 191 class TestSingleBlockdev(TestSingleDrive):
 192     qmp_cmd = 'blockdev-mirror'
 193     qmp_target = 'node1'
 194     not_found_error = 'GenericError'
 195
 196     def setUp(self):
 197         TestSingleDrive.setUp(self)
 198         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 199         args = {'options':
 200                     {'driver': iotests.imgfmt,
 201                      'node-name': self.qmp_target,
 202                      'file': { 'filename': target_img, 'driver': 'file' } } }
 203         result = self.vm.qmp("blockdev-add", **args)
 204         self.assert_qmp(result, 'return', {})
 205
 206     test_large_cluster = None
 207     test_image_not_found = None
 208     test_small_buffer2 = None
 209
 210 class TestSingleDriveZeroLength(TestSingleDrive):
 211     image_len = 0
 212     test_small_buffer2 = None
 213     test_large_cluster = None
 214
 215 class TestSingleBlockdevZeroLength(TestSingleBlockdev):
 216     image_len = 0
 217
 218 class TestSingleDriveUnalignedLength(TestSingleDrive):
 219     image_len = 1025 * 1024
 220     test_small_buffer2 = None
 221     test_large_cluster = None
 222
 223 class TestSingleBlockdevUnalignedLength(TestSingleBlockdev):
 224     image_len = 1025 * 1024
 225
 226 class TestMirrorNoBacking(iotests.QMPTestCase):
 227     image_len = 2 * 1024 * 1024 # MB
 228
 229     def setUp(self):
 230         iotests.create_image(backing_img, TestMirrorNoBacking.image_len)
 231         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 232         self.vm = iotests.VM().add_drive(test_img)
 233         self.vm.launch()
 234
 235     def tearDown(self):
 236         self.vm.shutdown()
 237         os.remove(test_img)
 238         os.remove(backing_img)
 239         try:
 240             os.remove(target_backing_img)
 241         except:
 242             pass
 243         os.remove(target_img)
 244
 245     def test_complete(self):
 246         self.assert_no_active_block_jobs()
 247
 248         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 249         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 250                              mode='existing', target=target_img)
 251         self.assert_qmp(result, 'return', {})
 252
 253         self.complete_and_wait()
 254         result = self.vm.qmp('query-block')
 255         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 256         self.vm.shutdown()
 257         self.assertTrue(iotests.compare_images(test_img, target_img),
 258                         'target image does not match source after mirroring')
 259
 260     def test_cancel(self):
 261         self.assert_no_active_block_jobs()
 262
 263         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 264         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 265                              mode='existing', target=target_img)
 266         self.assert_qmp(result, 'return', {})
 267
 268         self.wait_ready_and_cancel()
 269         result = self.vm.qmp('query-block')
 270         self.assert_qmp(result, 'return[0]/inserted/file', test_img)
 271         self.vm.shutdown()
 272         self.assertTrue(iotests.compare_images(test_img, target_img),
 273                         'target image does not match source after mirroring')
 274
 275     def test_large_cluster(self):
 276         self.assert_no_active_block_jobs()
 277
 278         # qemu-img create fails if the image is not there
 279         qemu_img('create', '-f', iotests.imgfmt, '-o', 'size=%d'
 280                         %(TestMirrorNoBacking.image_len), target_backing_img)
 281         qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s'
 282                         % (TestMirrorNoBacking.image_len, target_backing_img), target_img)
 283
 284         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 285                              mode='existing', target=target_img)
 286         self.assert_qmp(result, 'return', {})
 287
 288         self.complete_and_wait()
 289         result = self.vm.qmp('query-block')
 290         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 291         self.vm.shutdown()
 292         self.assertTrue(iotests.compare_images(test_img, target_img),
 293                         'target image does not match source after mirroring')
 294
 295 class TestMirrorResized(iotests.QMPTestCase):
 296     backing_len = 1 * 1024 * 1024 # MB
 297     image_len = 2 * 1024 * 1024 # MB
 298
 299     def setUp(self):
 300         iotests.create_image(backing_img, TestMirrorResized.backing_len)
 301         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 302         qemu_img('resize', test_img, '2M')
 303         self.vm = iotests.VM().add_drive(test_img)
 304         self.vm.launch()
 305
 306     def tearDown(self):
 307         self.vm.shutdown()
 308         os.remove(test_img)
 309         os.remove(backing_img)
 310         try:
 311             os.remove(target_img)
 312         except OSError:
 313             pass
 314
 315     def test_complete_top(self):
 316         self.assert_no_active_block_jobs()
 317
 318         result = self.vm.qmp('drive-mirror', device='drive0', sync='top',
 319                              target=target_img)
 320         self.assert_qmp(result, 'return', {})
 321
 322         self.complete_and_wait()
 323         result = self.vm.qmp('query-block')
 324         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 325         self.vm.shutdown()
 326         self.assertTrue(iotests.compare_images(test_img, target_img),
 327                         'target image does not match source after mirroring')
 328
 329     def test_complete_full(self):
 330         self.assert_no_active_block_jobs()
 331
 332         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 333                              target=target_img)
 334         self.assert_qmp(result, 'return', {})
 335
 336         self.complete_and_wait()
 337         result = self.vm.qmp('query-block')
 338         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 339         self.vm.shutdown()
 340         self.assertTrue(iotests.compare_images(test_img, target_img),
 341                         'target image does not match source after mirroring')
 342
 343 class TestReadErrors(iotests.QMPTestCase):
 344     image_len = 2 * 1024 * 1024 # MB
 345
 346     # this should be a multiple of twice the default granularity
 347     # so that we hit this offset first in state 1
 348     MIRROR_GRANULARITY = 1024 * 1024
 349
 350     def create_blkdebug_file(self, name, event, errno):
 351         file = open(name, 'w')
 352         file.write('''
 353 [inject-error]
 354 state = "1"
 355 event = "%s"
 356 errno = "%d"
 357 immediately = "off"
 358 once = "on"
 359 sector = "%d"
 360
 361 [set-state]
 362 state = "1"
 363 event = "%s"
 364 new_state = "2"
 365
 366 [set-state]
 367 state = "2"
 368 event = "%s"
 369 new_state = "1"
 370 ''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event))
 371         file.close()
 372
 373     def setUp(self):
 374         self.blkdebug_file = backing_img + ".blkdebug"
 375         iotests.create_image(backing_img, TestReadErrors.image_len)
 376         self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5)
 377         qemu_img('create', '-f', iotests.imgfmt,
 378                  '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
 379                        % (self.blkdebug_file, backing_img),
 380                  test_img)
 381         # Write something for tests that use sync='top'
 382         qemu_io('-c', 'write %d 512' % (self.MIRROR_GRANULARITY + 65536),
 383                         test_img)
 384         self.vm = iotests.VM().add_drive(test_img)
 385         self.vm.launch()
 386
 387     def tearDown(self):
 388         self.vm.shutdown()
 389         os.remove(test_img)
 390         os.remove(backing_img)
 391         os.remove(self.blkdebug_file)
 392
 393     def test_report_read(self):
 394         self.assert_no_active_block_jobs()
 395
 396         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 397                              target=target_img)
 398         self.assert_qmp(result, 'return', {})
 399
 400         completed = False
 401         error = False
 402         while not completed:
 403             for event in self.vm.get_qmp_events(wait=True):
 404                 if event['event'] == 'BLOCK_JOB_ERROR':
 405                     self.assert_qmp(event, 'data/device', 'drive0')
 406                     self.assert_qmp(event, 'data/operation', 'read')
 407                     error = True
 408                 elif event['event'] == 'BLOCK_JOB_READY':
 409                     self.assertTrue(False, 'job completed unexpectedly')
 410                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 411                     self.assertTrue(error, 'job completed unexpectedly')
 412                     self.assert_qmp(event, 'data/type', 'mirror')
 413                     self.assert_qmp(event, 'data/device', 'drive0')
 414                     self.assert_qmp(event, 'data/error', 'Input/output error')
 415                     completed = True
 416
 417         self.assert_no_active_block_jobs()
 418         self.vm.shutdown()
 419
 420     def test_ignore_read(self):
 421         self.assert_no_active_block_jobs()
 422
 423         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 424                              target=target_img, on_source_error='ignore')
 425         self.assert_qmp(result, 'return', {})
 426
 427         event = self.vm.get_qmp_event(wait=True)
 428         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 429         self.assert_qmp(event, 'data/device', 'drive0')
 430         self.assert_qmp(event, 'data/operation', 'read')
 431         result = self.vm.qmp('query-block-jobs')
 432         self.assert_qmp(result, 'return[0]/paused', False)
 433         self.complete_and_wait()
 434         self.vm.shutdown()
 435
 436     def test_large_cluster(self):
 437         self.assert_no_active_block_jobs()
 438
 439         # Test COW into the target image.  The first half of the
 440         # cluster at MIRROR_GRANULARITY has to be copied from
 441         # backing_img, even though sync='top'.
 442         qemu_img('create', '-f', iotests.imgfmt, '-ocluster_size=131072,backing_file=%s' %(backing_img), target_img)
 443         result = self.vm.qmp('drive-mirror', device='drive0', sync='top',
 444                              on_source_error='ignore',
 445                              mode='existing', target=target_img)
 446         self.assert_qmp(result, 'return', {})
 447
 448         event = self.vm.get_qmp_event(wait=True)
 449         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 450         self.assert_qmp(event, 'data/device', 'drive0')
 451         self.assert_qmp(event, 'data/operation', 'read')
 452         result = self.vm.qmp('query-block-jobs')
 453         self.assert_qmp(result, 'return[0]/paused', False)
 454         self.complete_and_wait()
 455         self.vm.shutdown()
 456
 457         # Detach blkdebug to compare images successfully
 458         qemu_img('rebase', '-f', iotests.imgfmt, '-u', '-b', backing_img, test_img)
 459         self.assertTrue(iotests.compare_images(test_img, target_img),
 460                         'target image does not match source after mirroring')
 461
 462     def test_stop_read(self):
 463         self.assert_no_active_block_jobs()
 464
 465         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 466                              target=target_img, on_source_error='stop')
 467         self.assert_qmp(result, 'return', {})
 468
 469         error = False
 470         ready = False
 471         while not ready:
 472             for event in self.vm.get_qmp_events(wait=True):
 473                 if event['event'] == 'BLOCK_JOB_ERROR':
 474                     self.assert_qmp(event, 'data/device', 'drive0')
 475                     self.assert_qmp(event, 'data/operation', 'read')
 476
 477                     result = self.vm.qmp('query-block-jobs')
 478                     self.assert_qmp(result, 'return[0]/paused', True)
 479                     self.assert_qmp(result, 'return[0]/io-status', 'failed')
 480
 481                     result = self.vm.qmp('block-job-resume', device='drive0')
 482                     self.assert_qmp(result, 'return', {})
 483                     error = True
 484                 elif event['event'] == 'BLOCK_JOB_READY':
 485                     self.assertTrue(error, 'job completed unexpectedly')
 486                     self.assert_qmp(event, 'data/device', 'drive0')
 487                     ready = True
 488
 489         result = self.vm.qmp('query-block-jobs')
 490         self.assert_qmp(result, 'return[0]/paused', False)
 491         self.assert_qmp(result, 'return[0]/io-status', 'ok')
 492
 493         self.complete_and_wait(wait_ready=False)
 494         self.assert_no_active_block_jobs()
 495         self.vm.shutdown()
 496
 497 class TestWriteErrors(iotests.QMPTestCase):
 498     image_len = 2 * 1024 * 1024 # MB
 499
 500     # this should be a multiple of twice the default granularity
 501     # so that we hit this offset first in state 1
 502     MIRROR_GRANULARITY = 1024 * 1024
 503
 504     def create_blkdebug_file(self, name, event, errno):
 505         file = open(name, 'w')
 506         file.write('''
 507 [inject-error]
 508 state = "1"
 509 event = "%s"
 510 errno = "%d"
 511 immediately = "off"
 512 once = "on"
 513 sector = "%d"
 514
 515 [set-state]
 516 state = "1"
 517 event = "%s"
 518 new_state = "2"
 519
 520 [set-state]
 521 state = "2"
 522 event = "%s"
 523 new_state = "1"
 524 ''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event))
 525         file.close()
 526
 527     def setUp(self):
 528         self.blkdebug_file = target_img + ".blkdebug"
 529         iotests.create_image(backing_img, TestWriteErrors.image_len)
 530         self.create_blkdebug_file(self.blkdebug_file, "write_aio", 5)
 531         qemu_img('create', '-f', iotests.imgfmt, '-obacking_file=%s' %(backing_img), test_img)
 532         self.vm = iotests.VM().add_drive(test_img)
 533         self.target_img = 'blkdebug:%s:%s' % (self.blkdebug_file, target_img)
 534         qemu_img('create', '-f', iotests.imgfmt, '-osize=%d' %(TestWriteErrors.image_len), target_img)
 535         self.vm.launch()
 536
 537     def tearDown(self):
 538         self.vm.shutdown()
 539         os.remove(test_img)
 540         os.remove(backing_img)
 541         os.remove(self.blkdebug_file)
 542
 543     def test_report_write(self):
 544         self.assert_no_active_block_jobs()
 545
 546         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 547                              mode='existing', target=self.target_img)
 548         self.assert_qmp(result, 'return', {})
 549
 550         completed = False
 551         error = False
 552         while not completed:
 553             for event in self.vm.get_qmp_events(wait=True):
 554                 if event['event'] == 'BLOCK_JOB_ERROR':
 555                     self.assert_qmp(event, 'data/device', 'drive0')
 556                     self.assert_qmp(event, 'data/operation', 'write')
 557                     error = True
 558                 elif event['event'] == 'BLOCK_JOB_READY':
 559                     self.assertTrue(False, 'job completed unexpectedly')
 560                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 561                     self.assertTrue(error, 'job completed unexpectedly')
 562                     self.assert_qmp(event, 'data/type', 'mirror')
 563                     self.assert_qmp(event, 'data/device', 'drive0')
 564                     self.assert_qmp(event, 'data/error', 'Input/output error')
 565                     completed = True
 566
 567         self.assert_no_active_block_jobs()
 568         self.vm.shutdown()
 569
 570     def test_ignore_write(self):
 571         self.assert_no_active_block_jobs()
 572
 573         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 574                              mode='existing', target=self.target_img,
 575                              on_target_error='ignore')
 576         self.assert_qmp(result, 'return', {})
 577
 578         event = self.vm.get_qmp_event(wait=True)
 579         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 580         self.assert_qmp(event, 'data/device', 'drive0')
 581         self.assert_qmp(event, 'data/operation', 'write')
 582         result = self.vm.qmp('query-block-jobs')
 583         self.assert_qmp(result, 'return[0]/paused', False)
 584         self.complete_and_wait()
 585         self.vm.shutdown()
 586
 587     def test_stop_write(self):
 588         self.assert_no_active_block_jobs()
 589
 590         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 591                              mode='existing', target=self.target_img,
 592                              on_target_error='stop')
 593         self.assert_qmp(result, 'return', {})
 594
 595         error = False
 596         ready = False
 597         while not ready:
 598             for event in self.vm.get_qmp_events(wait=True):
 599                 if event['event'] == 'BLOCK_JOB_ERROR':
 600                     self.assert_qmp(event, 'data/device', 'drive0')
 601                     self.assert_qmp(event, 'data/operation', 'write')
 602
 603                     result = self.vm.qmp('query-block-jobs')
 604                     self.assert_qmp(result, 'return[0]/paused', True)
 605                     self.assert_qmp(result, 'return[0]/io-status', 'failed')
 606
 607                     result = self.vm.qmp('block-job-resume', device='drive0')
 608                     self.assert_qmp(result, 'return', {})
 609
 610                     result = self.vm.qmp('query-block-jobs')
 611                     self.assert_qmp(result, 'return[0]/paused', False)
 612                     self.assert_qmp(result, 'return[0]/io-status', 'ok')
 613                     error = True
 614                 elif event['event'] == 'BLOCK_JOB_READY':
 615                     self.assertTrue(error, 'job completed unexpectedly')
 616                     self.assert_qmp(event, 'data/device', 'drive0')
 617                     ready = True
 618
 619         self.complete_and_wait(wait_ready=False)
 620         self.assert_no_active_block_jobs()
 621         self.vm.shutdown()
 622
 623 class TestSetSpeed(iotests.QMPTestCase):
 624     image_len = 80 * 1024 * 1024 # MB
 625
 626     def setUp(self):
 627         qemu_img('create', backing_img, str(TestSetSpeed.image_len))
 628         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 629         self.vm = iotests.VM().add_drive(test_img)
 630         self.vm.launch()
 631
 632     def tearDown(self):
 633         self.vm.shutdown()
 634         os.remove(test_img)
 635         os.remove(backing_img)
 636         os.remove(target_img)
 637
 638     def test_set_speed(self):
 639         self.assert_no_active_block_jobs()
 640
 641         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 642                              target=target_img)
 643         self.assert_qmp(result, 'return', {})
 644
 645         # Default speed is 0
 646         result = self.vm.qmp('query-block-jobs')
 647         self.assert_qmp(result, 'return[0]/device', 'drive0')
 648         self.assert_qmp(result, 'return[0]/speed', 0)
 649
 650         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
 651         self.assert_qmp(result, 'return', {})
 652
 653         # Ensure the speed we set was accepted
 654         result = self.vm.qmp('query-block-jobs')
 655         self.assert_qmp(result, 'return[0]/device', 'drive0')
 656         self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024)
 657
 658         self.wait_ready_and_cancel()
 659
 660         # Check setting speed in drive-mirror works
 661         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 662                              target=target_img, speed=4*1024*1024)
 663         self.assert_qmp(result, 'return', {})
 664
 665         result = self.vm.qmp('query-block-jobs')
 666         self.assert_qmp(result, 'return[0]/device', 'drive0')
 667         self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024)
 668
 669         self.wait_ready_and_cancel()
 670
 671     def test_set_speed_invalid(self):
 672         self.assert_no_active_block_jobs()
 673
 674         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 675                              target=target_img, speed=-1)
 676         self.assert_qmp(result, 'error/class', 'GenericError')
 677
 678         self.assert_no_active_block_jobs()
 679
 680         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 681                              target=target_img)
 682         self.assert_qmp(result, 'return', {})
 683
 684         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
 685         self.assert_qmp(result, 'error/class', 'GenericError')
 686
 687         self.wait_ready_and_cancel()
 688
 689 class TestUnbackedSource(iotests.QMPTestCase):
 690     image_len = 2 * 1024 * 1024 # MB
 691
 692     def setUp(self):
 693         qemu_img('create', '-f', iotests.imgfmt, test_img,
 694                  str(TestUnbackedSource.image_len))
 695         self.vm = iotests.VM().add_drive(test_img)
 696         self.vm.launch()
 697
 698     def tearDown(self):
 699         self.vm.shutdown()
 700         os.remove(test_img)
 701         os.remove(target_img)
 702
 703     def test_absolute_paths_full(self):
 704         self.assert_no_active_block_jobs()
 705         result = self.vm.qmp('drive-mirror', device='drive0',
 706                              sync='full', target=target_img,
 707                              mode='absolute-paths')
 708         self.assert_qmp(result, 'return', {})
 709         self.complete_and_wait()
 710         self.assert_no_active_block_jobs()
 711
 712     def test_absolute_paths_top(self):
 713         self.assert_no_active_block_jobs()
 714         result = self.vm.qmp('drive-mirror', device='drive0',
 715                              sync='top', target=target_img,
 716                              mode='absolute-paths')
 717         self.assert_qmp(result, 'return', {})
 718         self.complete_and_wait()
 719         self.assert_no_active_block_jobs()
 720
 721     def test_absolute_paths_none(self):
 722         self.assert_no_active_block_jobs()
 723         result = self.vm.qmp('drive-mirror', device='drive0',
 724                              sync='none', target=target_img,
 725                              mode='absolute-paths')
 726         self.assert_qmp(result, 'return', {})
 727         self.complete_and_wait()
 728         self.assert_no_active_block_jobs()
 729
 730 class TestRepairQuorum(iotests.QMPTestCase):
 731     """ This class test quorum file repair using drive-mirror.
 732         It's mostly a fork of TestSingleDrive """
 733     image_len = 1 * 1024 * 1024 # MB
 734     IMAGES = [ quorum_img1, quorum_img2, quorum_img3 ]
 735
 736     def has_quorum(self):
 737         return 'quorum' in iotests.qemu_img_pipe('--help')
 738
 739     def setUp(self):
 740         self.vm = iotests.VM()
 741
 742         if iotests.qemu_default_machine == 'pc':
 743             self.vm.add_drive(None, 'media=cdrom', 'ide')
 744
 745         # Add each individual quorum images
 746         for i in self.IMAGES:
 747             qemu_img('create', '-f', iotests.imgfmt, i,
 748                      str(TestSingleDrive.image_len))
 749             # Assign a node name to each quorum image in order to manipulate
 750             # them
 751             opts = "node-name=img%i" % self.IMAGES.index(i)
 752             self.vm = self.vm.add_drive(i, opts)
 753
 754         self.vm.launch()
 755
 756         #assemble the quorum block device from the individual files
 757         args = { "options" : { "driver": "quorum", "id": "quorum0",
 758                  "vote-threshold": 2, "children": [ "img0", "img1", "img2" ] } }
 759         if self.has_quorum():
 760             result = self.vm.qmp("blockdev-add", **args)
 761             self.assert_qmp(result, 'return', {})
 762
 763
 764     def tearDown(self):
 765         self.vm.shutdown()
 766         for i in self.IMAGES + [ quorum_repair_img ]:
 767             # Do a try/except because the test may have deleted some images
 768             try:
 769                 os.remove(i)
 770             except OSError:
 771                 pass
 772
 773     def test_complete(self):
 774         if not self.has_quorum():
 775             return
 776
 777         self.assert_no_active_block_jobs()
 778
 779         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 780                              node_name="repair0",
 781                              replaces="img1",
 782                              target=quorum_repair_img, format=iotests.imgfmt)
 783         self.assert_qmp(result, 'return', {})
 784
 785         self.complete_and_wait(drive="quorum0")
 786         self.assert_has_block_node("repair0", quorum_repair_img)
 787         # TODO: a better test requiring some QEMU infrastructure will be added
 788         #       to check that this file is really driven by quorum
 789         self.vm.shutdown()
 790         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 791                         'target image does not match source after mirroring')
 792
 793     def test_cancel(self):
 794         if not self.has_quorum():
 795             return
 796
 797         self.assert_no_active_block_jobs()
 798
 799         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 800                              node_name="repair0",
 801                              replaces="img1",
 802                              target=quorum_repair_img, format=iotests.imgfmt)
 803         self.assert_qmp(result, 'return', {})
 804
 805         self.cancel_and_wait(drive="quorum0", force=True)
 806         # here we check that the last registered quorum file has not been
 807         # swapped out and unref
 808         self.assert_has_block_node(None, quorum_img3)
 809         self.vm.shutdown()
 810
 811     def test_cancel_after_ready(self):
 812         if not self.has_quorum():
 813             return
 814
 815         self.assert_no_active_block_jobs()
 816
 817         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 818                              node_name="repair0",
 819                              replaces="img1",
 820                              target=quorum_repair_img, format=iotests.imgfmt)
 821         self.assert_qmp(result, 'return', {})
 822
 823         self.wait_ready_and_cancel(drive="quorum0")
 824         # here we check that the last registered quorum file has not been
 825         # swapped out and unref
 826         self.assert_has_block_node(None, quorum_img3)
 827         self.vm.shutdown()
 828         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 829                         'target image does not match source after mirroring')
 830
 831     def test_pause(self):
 832         if not self.has_quorum():
 833             return
 834
 835         self.assert_no_active_block_jobs()
 836
 837         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 838                              node_name="repair0",
 839                              replaces="img1",
 840                              target=quorum_repair_img, format=iotests.imgfmt)
 841         self.assert_qmp(result, 'return', {})
 842
 843         result = self.vm.qmp('block-job-pause', device='quorum0')
 844         self.assert_qmp(result, 'return', {})
 845
 846         time.sleep(1)
 847         result = self.vm.qmp('query-block-jobs')
 848         offset = self.dictpath(result, 'return[0]/offset')
 849
 850         time.sleep(1)
 851         result = self.vm.qmp('query-block-jobs')
 852         self.assert_qmp(result, 'return[0]/offset', offset)
 853
 854         result = self.vm.qmp('block-job-resume', device='quorum0')
 855         self.assert_qmp(result, 'return', {})
 856
 857         self.complete_and_wait(drive="quorum0")
 858         self.vm.shutdown()
 859         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 860                         'target image does not match source after mirroring')
 861
 862     def test_medium_not_found(self):
 863         if not self.has_quorum():
 864             return
 865
 866         if iotests.qemu_default_machine != 'pc':
 867             return
 868
 869         result = self.vm.qmp('drive-mirror', device='drive0', # CD-ROM
 870                              sync='full',
 871                              node_name='repair0',
 872                              replaces='img1',
 873                              target=quorum_repair_img, format=iotests.imgfmt)
 874         self.assert_qmp(result, 'error/class', 'GenericError')
 875
 876     def test_image_not_found(self):
 877         if not self.has_quorum():
 878             return
 879
 880         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 881                              node_name='repair0',
 882                              replaces='img1',
 883                              mode='existing',
 884                              target=quorum_repair_img, format=iotests.imgfmt)
 885         self.assert_qmp(result, 'error/class', 'GenericError')
 886
 887     def test_device_not_found(self):
 888         if not self.has_quorum():
 889             return
 890
 891         result = self.vm.qmp('drive-mirror', device='nonexistent', sync='full',
 892                              node_name='repair0',
 893                              replaces='img1',
 894                              target=quorum_repair_img, format=iotests.imgfmt)
 895         self.assert_qmp(result, 'error/class', 'DeviceNotFound')
 896
 897     def test_wrong_sync_mode(self):
 898         if not self.has_quorum():
 899             return
 900
 901         result = self.vm.qmp('drive-mirror', device='quorum0',
 902                              node_name='repair0',
 903                              replaces='img1',
 904                              target=quorum_repair_img, format=iotests.imgfmt)
 905         self.assert_qmp(result, 'error/class', 'GenericError')
 906
 907     def test_no_node_name(self):
 908         if not self.has_quorum():
 909             return
 910
 911         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 912                              replaces='img1',
 913                              target=quorum_repair_img, format=iotests.imgfmt)
 914         self.assert_qmp(result, 'error/class', 'GenericError')
 915
 916     def test_nonexistent_replaces(self):
 917         if not self.has_quorum():
 918             return
 919
 920         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 921                              node_name='repair0',
 922                              replaces='img77',
 923                              target=quorum_repair_img, format=iotests.imgfmt)
 924         self.assert_qmp(result, 'error/class', 'GenericError')
 925
 926     def test_after_a_quorum_snapshot(self):
 927         if not self.has_quorum():
 928             return
 929
 930         result = self.vm.qmp('blockdev-snapshot-sync', node_name='img1',
 931                              snapshot_file=quorum_snapshot_file,
 932                              snapshot_node_name="snap1");
 933
 934         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 935                              node_name='repair0',
 936                              replaces="img1",
 937                              target=quorum_repair_img, format=iotests.imgfmt)
 938         self.assert_qmp(result, 'error/class', 'GenericError')
 939
 940         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 941                              node_name='repair0',
 942                              replaces="snap1",
 943                              target=quorum_repair_img, format=iotests.imgfmt)
 944         self.assert_qmp(result, 'return', {})
 945
 946         self.complete_and_wait(drive="quorum0")
 947         self.assert_has_block_node("repair0", quorum_repair_img)
 948         # TODO: a better test requiring some QEMU infrastructure will be added
 949         #       to check that this file is really driven by quorum
 950         self.vm.shutdown()
 951
 952 if __name__ == '__main__':
 953     iotests.main(supported_fmts=['qcow2', 'qed'])