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 TestBlockdevAttached(iotests.QMPTestCase):
 211     image_len = 1 * 1024 * 1024 # MB
 212
 213     def setUp(self):
 214         iotests.create_image(backing_img, self.image_len)
 215         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 216         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 217         self.vm = iotests.VM().add_drive(test_img)
 218         self.vm.launch()
 219
 220     def tearDown(self):
 221         self.vm.shutdown()
 222         os.remove(test_img)
 223         os.remove(target_img)
 224
 225     def test_blockdev_attached(self):
 226         self.assert_no_active_block_jobs()
 227         args = {'options':
 228                     {'driver': iotests.imgfmt,
 229                      'id': 'drive1',
 230                      'file': { 'filename': target_img, 'driver': 'file' } } }
 231         result = self.vm.qmp("blockdev-add", **args)
 232         self.assert_qmp(result, 'return', {})
 233         result = self.vm.qmp('blockdev-mirror', device='drive0', sync='full',
 234                              target='drive1')
 235         self.assert_qmp(result, 'error/class', 'GenericError')
 236
 237 class TestSingleDriveZeroLength(TestSingleDrive):
 238     image_len = 0
 239     test_small_buffer2 = None
 240     test_large_cluster = None
 241
 242 class TestSingleBlockdevZeroLength(TestSingleBlockdev):
 243     image_len = 0
 244
 245 class TestSingleDriveUnalignedLength(TestSingleDrive):
 246     image_len = 1025 * 1024
 247     test_small_buffer2 = None
 248     test_large_cluster = None
 249
 250 class TestSingleBlockdevUnalignedLength(TestSingleBlockdev):
 251     image_len = 1025 * 1024
 252
 253 class TestMirrorNoBacking(iotests.QMPTestCase):
 254     image_len = 2 * 1024 * 1024 # MB
 255
 256     def setUp(self):
 257         iotests.create_image(backing_img, TestMirrorNoBacking.image_len)
 258         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 259         self.vm = iotests.VM().add_drive(test_img)
 260         self.vm.launch()
 261
 262     def tearDown(self):
 263         self.vm.shutdown()
 264         os.remove(test_img)
 265         os.remove(backing_img)
 266         try:
 267             os.remove(target_backing_img)
 268         except:
 269             pass
 270         os.remove(target_img)
 271
 272     def test_complete(self):
 273         self.assert_no_active_block_jobs()
 274
 275         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 276         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 277                              mode='existing', target=target_img)
 278         self.assert_qmp(result, 'return', {})
 279
 280         self.complete_and_wait()
 281         result = self.vm.qmp('query-block')
 282         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 283         self.vm.shutdown()
 284         self.assertTrue(iotests.compare_images(test_img, target_img),
 285                         'target image does not match source after mirroring')
 286
 287     def test_cancel(self):
 288         self.assert_no_active_block_jobs()
 289
 290         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img)
 291         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 292                              mode='existing', target=target_img)
 293         self.assert_qmp(result, 'return', {})
 294
 295         self.wait_ready_and_cancel()
 296         result = self.vm.qmp('query-block')
 297         self.assert_qmp(result, 'return[0]/inserted/file', test_img)
 298         self.vm.shutdown()
 299         self.assertTrue(iotests.compare_images(test_img, target_img),
 300                         'target image does not match source after mirroring')
 301
 302     def test_large_cluster(self):
 303         self.assert_no_active_block_jobs()
 304
 305         # qemu-img create fails if the image is not there
 306         qemu_img('create', '-f', iotests.imgfmt, '-o', 'size=%d'
 307                         %(TestMirrorNoBacking.image_len), target_backing_img)
 308         qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s'
 309                         % (TestMirrorNoBacking.image_len, target_backing_img), target_img)
 310
 311         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 312                              mode='existing', target=target_img)
 313         self.assert_qmp(result, 'return', {})
 314
 315         self.complete_and_wait()
 316         result = self.vm.qmp('query-block')
 317         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 318         self.vm.shutdown()
 319         self.assertTrue(iotests.compare_images(test_img, target_img),
 320                         'target image does not match source after mirroring')
 321
 322 class TestMirrorResized(iotests.QMPTestCase):
 323     backing_len = 1 * 1024 * 1024 # MB
 324     image_len = 2 * 1024 * 1024 # MB
 325
 326     def setUp(self):
 327         iotests.create_image(backing_img, TestMirrorResized.backing_len)
 328         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 329         qemu_img('resize', test_img, '2M')
 330         self.vm = iotests.VM().add_drive(test_img)
 331         self.vm.launch()
 332
 333     def tearDown(self):
 334         self.vm.shutdown()
 335         os.remove(test_img)
 336         os.remove(backing_img)
 337         try:
 338             os.remove(target_img)
 339         except OSError:
 340             pass
 341
 342     def test_complete_top(self):
 343         self.assert_no_active_block_jobs()
 344
 345         result = self.vm.qmp('drive-mirror', device='drive0', sync='top',
 346                              target=target_img)
 347         self.assert_qmp(result, 'return', {})
 348
 349         self.complete_and_wait()
 350         result = self.vm.qmp('query-block')
 351         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 352         self.vm.shutdown()
 353         self.assertTrue(iotests.compare_images(test_img, target_img),
 354                         'target image does not match source after mirroring')
 355
 356     def test_complete_full(self):
 357         self.assert_no_active_block_jobs()
 358
 359         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 360                              target=target_img)
 361         self.assert_qmp(result, 'return', {})
 362
 363         self.complete_and_wait()
 364         result = self.vm.qmp('query-block')
 365         self.assert_qmp(result, 'return[0]/inserted/file', target_img)
 366         self.vm.shutdown()
 367         self.assertTrue(iotests.compare_images(test_img, target_img),
 368                         'target image does not match source after mirroring')
 369
 370 class TestReadErrors(iotests.QMPTestCase):
 371     image_len = 2 * 1024 * 1024 # MB
 372
 373     # this should be a multiple of twice the default granularity
 374     # so that we hit this offset first in state 1
 375     MIRROR_GRANULARITY = 1024 * 1024
 376
 377     def create_blkdebug_file(self, name, event, errno):
 378         file = open(name, 'w')
 379         file.write('''
 380 [inject-error]
 381 state = "1"
 382 event = "%s"
 383 errno = "%d"
 384 immediately = "off"
 385 once = "on"
 386 sector = "%d"
 387
 388 [set-state]
 389 state = "1"
 390 event = "%s"
 391 new_state = "2"
 392
 393 [set-state]
 394 state = "2"
 395 event = "%s"
 396 new_state = "1"
 397 ''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event))
 398         file.close()
 399
 400     def setUp(self):
 401         self.blkdebug_file = backing_img + ".blkdebug"
 402         iotests.create_image(backing_img, TestReadErrors.image_len)
 403         self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5)
 404         qemu_img('create', '-f', iotests.imgfmt,
 405                  '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
 406                        % (self.blkdebug_file, backing_img),
 407                  test_img)
 408         # Write something for tests that use sync='top'
 409         qemu_io('-c', 'write %d 512' % (self.MIRROR_GRANULARITY + 65536),
 410                         test_img)
 411         self.vm = iotests.VM().add_drive(test_img)
 412         self.vm.launch()
 413
 414     def tearDown(self):
 415         self.vm.shutdown()
 416         os.remove(test_img)
 417         os.remove(backing_img)
 418         os.remove(self.blkdebug_file)
 419
 420     def test_report_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)
 425         self.assert_qmp(result, 'return', {})
 426
 427         completed = False
 428         error = False
 429         while not completed:
 430             for event in self.vm.get_qmp_events(wait=True):
 431                 if event['event'] == 'BLOCK_JOB_ERROR':
 432                     self.assert_qmp(event, 'data/device', 'drive0')
 433                     self.assert_qmp(event, 'data/operation', 'read')
 434                     error = True
 435                 elif event['event'] == 'BLOCK_JOB_READY':
 436                     self.assertTrue(False, 'job completed unexpectedly')
 437                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 438                     self.assertTrue(error, 'job completed unexpectedly')
 439                     self.assert_qmp(event, 'data/type', 'mirror')
 440                     self.assert_qmp(event, 'data/device', 'drive0')
 441                     self.assert_qmp(event, 'data/error', 'Input/output error')
 442                     completed = True
 443
 444         self.assert_no_active_block_jobs()
 445         self.vm.shutdown()
 446
 447     def test_ignore_read(self):
 448         self.assert_no_active_block_jobs()
 449
 450         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 451                              target=target_img, on_source_error='ignore')
 452         self.assert_qmp(result, 'return', {})
 453
 454         event = self.vm.get_qmp_event(wait=True)
 455         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 456         self.assert_qmp(event, 'data/device', 'drive0')
 457         self.assert_qmp(event, 'data/operation', 'read')
 458         result = self.vm.qmp('query-block-jobs')
 459         self.assert_qmp(result, 'return[0]/paused', False)
 460         self.complete_and_wait()
 461         self.vm.shutdown()
 462
 463     def test_large_cluster(self):
 464         self.assert_no_active_block_jobs()
 465
 466         # Test COW into the target image.  The first half of the
 467         # cluster at MIRROR_GRANULARITY has to be copied from
 468         # backing_img, even though sync='top'.
 469         qemu_img('create', '-f', iotests.imgfmt, '-ocluster_size=131072,backing_file=%s' %(backing_img), target_img)
 470         result = self.vm.qmp('drive-mirror', device='drive0', sync='top',
 471                              on_source_error='ignore',
 472                              mode='existing', target=target_img)
 473         self.assert_qmp(result, 'return', {})
 474
 475         event = self.vm.get_qmp_event(wait=True)
 476         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 477         self.assert_qmp(event, 'data/device', 'drive0')
 478         self.assert_qmp(event, 'data/operation', 'read')
 479         result = self.vm.qmp('query-block-jobs')
 480         self.assert_qmp(result, 'return[0]/paused', False)
 481         self.complete_and_wait()
 482         self.vm.shutdown()
 483
 484         # Detach blkdebug to compare images successfully
 485         qemu_img('rebase', '-f', iotests.imgfmt, '-u', '-b', backing_img, test_img)
 486         self.assertTrue(iotests.compare_images(test_img, target_img),
 487                         'target image does not match source after mirroring')
 488
 489     def test_stop_read(self):
 490         self.assert_no_active_block_jobs()
 491
 492         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 493                              target=target_img, on_source_error='stop')
 494         self.assert_qmp(result, 'return', {})
 495
 496         error = False
 497         ready = False
 498         while not ready:
 499             for event in self.vm.get_qmp_events(wait=True):
 500                 if event['event'] == 'BLOCK_JOB_ERROR':
 501                     self.assert_qmp(event, 'data/device', 'drive0')
 502                     self.assert_qmp(event, 'data/operation', 'read')
 503
 504                     result = self.vm.qmp('query-block-jobs')
 505                     self.assert_qmp(result, 'return[0]/paused', True)
 506                     self.assert_qmp(result, 'return[0]/io-status', 'failed')
 507
 508                     result = self.vm.qmp('block-job-resume', device='drive0')
 509                     self.assert_qmp(result, 'return', {})
 510                     error = True
 511                 elif event['event'] == 'BLOCK_JOB_READY':
 512                     self.assertTrue(error, 'job completed unexpectedly')
 513                     self.assert_qmp(event, 'data/device', 'drive0')
 514                     ready = True
 515
 516         result = self.vm.qmp('query-block-jobs')
 517         self.assert_qmp(result, 'return[0]/paused', False)
 518         self.assert_qmp(result, 'return[0]/io-status', 'ok')
 519
 520         self.complete_and_wait(wait_ready=False)
 521         self.assert_no_active_block_jobs()
 522         self.vm.shutdown()
 523
 524 class TestWriteErrors(iotests.QMPTestCase):
 525     image_len = 2 * 1024 * 1024 # MB
 526
 527     # this should be a multiple of twice the default granularity
 528     # so that we hit this offset first in state 1
 529     MIRROR_GRANULARITY = 1024 * 1024
 530
 531     def create_blkdebug_file(self, name, event, errno):
 532         file = open(name, 'w')
 533         file.write('''
 534 [inject-error]
 535 state = "1"
 536 event = "%s"
 537 errno = "%d"
 538 immediately = "off"
 539 once = "on"
 540 sector = "%d"
 541
 542 [set-state]
 543 state = "1"
 544 event = "%s"
 545 new_state = "2"
 546
 547 [set-state]
 548 state = "2"
 549 event = "%s"
 550 new_state = "1"
 551 ''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event))
 552         file.close()
 553
 554     def setUp(self):
 555         self.blkdebug_file = target_img + ".blkdebug"
 556         iotests.create_image(backing_img, TestWriteErrors.image_len)
 557         self.create_blkdebug_file(self.blkdebug_file, "write_aio", 5)
 558         qemu_img('create', '-f', iotests.imgfmt, '-obacking_file=%s' %(backing_img), test_img)
 559         self.vm = iotests.VM().add_drive(test_img)
 560         self.target_img = 'blkdebug:%s:%s' % (self.blkdebug_file, target_img)
 561         qemu_img('create', '-f', iotests.imgfmt, '-osize=%d' %(TestWriteErrors.image_len), target_img)
 562         self.vm.launch()
 563
 564     def tearDown(self):
 565         self.vm.shutdown()
 566         os.remove(test_img)
 567         os.remove(backing_img)
 568         os.remove(self.blkdebug_file)
 569
 570     def test_report_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         self.assert_qmp(result, 'return', {})
 576
 577         completed = False
 578         error = False
 579         while not completed:
 580             for event in self.vm.get_qmp_events(wait=True):
 581                 if event['event'] == 'BLOCK_JOB_ERROR':
 582                     self.assert_qmp(event, 'data/device', 'drive0')
 583                     self.assert_qmp(event, 'data/operation', 'write')
 584                     error = True
 585                 elif event['event'] == 'BLOCK_JOB_READY':
 586                     self.assertTrue(False, 'job completed unexpectedly')
 587                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 588                     self.assertTrue(error, 'job completed unexpectedly')
 589                     self.assert_qmp(event, 'data/type', 'mirror')
 590                     self.assert_qmp(event, 'data/device', 'drive0')
 591                     self.assert_qmp(event, 'data/error', 'Input/output error')
 592                     completed = True
 593
 594         self.assert_no_active_block_jobs()
 595         self.vm.shutdown()
 596
 597     def test_ignore_write(self):
 598         self.assert_no_active_block_jobs()
 599
 600         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 601                              mode='existing', target=self.target_img,
 602                              on_target_error='ignore')
 603         self.assert_qmp(result, 'return', {})
 604
 605         event = self.vm.get_qmp_event(wait=True)
 606         self.assertEquals(event['event'], 'BLOCK_JOB_ERROR')
 607         self.assert_qmp(event, 'data/device', 'drive0')
 608         self.assert_qmp(event, 'data/operation', 'write')
 609         result = self.vm.qmp('query-block-jobs')
 610         self.assert_qmp(result, 'return[0]/paused', False)
 611         self.complete_and_wait()
 612         self.vm.shutdown()
 613
 614     def test_stop_write(self):
 615         self.assert_no_active_block_jobs()
 616
 617         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 618                              mode='existing', target=self.target_img,
 619                              on_target_error='stop')
 620         self.assert_qmp(result, 'return', {})
 621
 622         error = False
 623         ready = False
 624         while not ready:
 625             for event in self.vm.get_qmp_events(wait=True):
 626                 if event['event'] == 'BLOCK_JOB_ERROR':
 627                     self.assert_qmp(event, 'data/device', 'drive0')
 628                     self.assert_qmp(event, 'data/operation', 'write')
 629
 630                     result = self.vm.qmp('query-block-jobs')
 631                     self.assert_qmp(result, 'return[0]/paused', True)
 632                     self.assert_qmp(result, 'return[0]/io-status', 'failed')
 633
 634                     result = self.vm.qmp('block-job-resume', device='drive0')
 635                     self.assert_qmp(result, 'return', {})
 636
 637                     result = self.vm.qmp('query-block-jobs')
 638                     self.assert_qmp(result, 'return[0]/paused', False)
 639                     self.assert_qmp(result, 'return[0]/io-status', 'ok')
 640                     error = True
 641                 elif event['event'] == 'BLOCK_JOB_READY':
 642                     self.assertTrue(error, 'job completed unexpectedly')
 643                     self.assert_qmp(event, 'data/device', 'drive0')
 644                     ready = True
 645
 646         self.complete_and_wait(wait_ready=False)
 647         self.assert_no_active_block_jobs()
 648         self.vm.shutdown()
 649
 650 class TestSetSpeed(iotests.QMPTestCase):
 651     image_len = 80 * 1024 * 1024 # MB
 652
 653     def setUp(self):
 654         qemu_img('create', backing_img, str(TestSetSpeed.image_len))
 655         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 656         self.vm = iotests.VM().add_drive(test_img)
 657         self.vm.launch()
 658
 659     def tearDown(self):
 660         self.vm.shutdown()
 661         os.remove(test_img)
 662         os.remove(backing_img)
 663         os.remove(target_img)
 664
 665     def test_set_speed(self):
 666         self.assert_no_active_block_jobs()
 667
 668         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 669                              target=target_img)
 670         self.assert_qmp(result, 'return', {})
 671
 672         # Default speed is 0
 673         result = self.vm.qmp('query-block-jobs')
 674         self.assert_qmp(result, 'return[0]/device', 'drive0')
 675         self.assert_qmp(result, 'return[0]/speed', 0)
 676
 677         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
 678         self.assert_qmp(result, 'return', {})
 679
 680         # Ensure the speed we set was accepted
 681         result = self.vm.qmp('query-block-jobs')
 682         self.assert_qmp(result, 'return[0]/device', 'drive0')
 683         self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024)
 684
 685         self.wait_ready_and_cancel()
 686
 687         # Check setting speed in drive-mirror works
 688         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 689                              target=target_img, speed=4*1024*1024)
 690         self.assert_qmp(result, 'return', {})
 691
 692         result = self.vm.qmp('query-block-jobs')
 693         self.assert_qmp(result, 'return[0]/device', 'drive0')
 694         self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024)
 695
 696         self.wait_ready_and_cancel()
 697
 698     def test_set_speed_invalid(self):
 699         self.assert_no_active_block_jobs()
 700
 701         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 702                              target=target_img, speed=-1)
 703         self.assert_qmp(result, 'error/class', 'GenericError')
 704
 705         self.assert_no_active_block_jobs()
 706
 707         result = self.vm.qmp('drive-mirror', device='drive0', sync='full',
 708                              target=target_img)
 709         self.assert_qmp(result, 'return', {})
 710
 711         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
 712         self.assert_qmp(result, 'error/class', 'GenericError')
 713
 714         self.wait_ready_and_cancel()
 715
 716 class TestUnbackedSource(iotests.QMPTestCase):
 717     image_len = 2 * 1024 * 1024 # MB
 718
 719     def setUp(self):
 720         qemu_img('create', '-f', iotests.imgfmt, test_img,
 721                  str(TestUnbackedSource.image_len))
 722         self.vm = iotests.VM().add_drive(test_img)
 723         self.vm.launch()
 724
 725     def tearDown(self):
 726         self.vm.shutdown()
 727         os.remove(test_img)
 728         os.remove(target_img)
 729
 730     def test_absolute_paths_full(self):
 731         self.assert_no_active_block_jobs()
 732         result = self.vm.qmp('drive-mirror', device='drive0',
 733                              sync='full', target=target_img,
 734                              mode='absolute-paths')
 735         self.assert_qmp(result, 'return', {})
 736         self.complete_and_wait()
 737         self.assert_no_active_block_jobs()
 738
 739     def test_absolute_paths_top(self):
 740         self.assert_no_active_block_jobs()
 741         result = self.vm.qmp('drive-mirror', device='drive0',
 742                              sync='top', target=target_img,
 743                              mode='absolute-paths')
 744         self.assert_qmp(result, 'return', {})
 745         self.complete_and_wait()
 746         self.assert_no_active_block_jobs()
 747
 748     def test_absolute_paths_none(self):
 749         self.assert_no_active_block_jobs()
 750         result = self.vm.qmp('drive-mirror', device='drive0',
 751                              sync='none', target=target_img,
 752                              mode='absolute-paths')
 753         self.assert_qmp(result, 'return', {})
 754         self.complete_and_wait()
 755         self.assert_no_active_block_jobs()
 756
 757 class TestRepairQuorum(iotests.QMPTestCase):
 758     """ This class test quorum file repair using drive-mirror.
 759         It's mostly a fork of TestSingleDrive """
 760     image_len = 1 * 1024 * 1024 # MB
 761     IMAGES = [ quorum_img1, quorum_img2, quorum_img3 ]
 762
 763     def has_quorum(self):
 764         return 'quorum' in iotests.qemu_img_pipe('--help')
 765
 766     def setUp(self):
 767         self.vm = iotests.VM()
 768
 769         if iotests.qemu_default_machine == 'pc':
 770             self.vm.add_drive(None, 'media=cdrom', 'ide')
 771
 772         # Add each individual quorum images
 773         for i in self.IMAGES:
 774             qemu_img('create', '-f', iotests.imgfmt, i,
 775                      str(TestSingleDrive.image_len))
 776             # Assign a node name to each quorum image in order to manipulate
 777             # them
 778             opts = "node-name=img%i" % self.IMAGES.index(i)
 779             self.vm = self.vm.add_drive(i, opts)
 780
 781         self.vm.launch()
 782
 783         #assemble the quorum block device from the individual files
 784         args = { "options" : { "driver": "quorum", "id": "quorum0",
 785                  "vote-threshold": 2, "children": [ "img0", "img1", "img2" ] } }
 786         if self.has_quorum():
 787             result = self.vm.qmp("blockdev-add", **args)
 788             self.assert_qmp(result, 'return', {})
 789
 790
 791     def tearDown(self):
 792         self.vm.shutdown()
 793         for i in self.IMAGES + [ quorum_repair_img ]:
 794             # Do a try/except because the test may have deleted some images
 795             try:
 796                 os.remove(i)
 797             except OSError:
 798                 pass
 799
 800     def test_complete(self):
 801         if not self.has_quorum():
 802             return
 803
 804         self.assert_no_active_block_jobs()
 805
 806         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 807                              node_name="repair0",
 808                              replaces="img1",
 809                              target=quorum_repair_img, format=iotests.imgfmt)
 810         self.assert_qmp(result, 'return', {})
 811
 812         self.complete_and_wait(drive="quorum0")
 813         result = self.vm.qmp('query-named-block-nodes')
 814         self.assert_qmp(result, 'return[0]/file', quorum_repair_img)
 815         # TODO: a better test requiring some QEMU infrastructure will be added
 816         #       to check that this file is really driven by quorum
 817         self.vm.shutdown()
 818         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 819                         'target image does not match source after mirroring')
 820
 821     def test_cancel(self):
 822         if not self.has_quorum():
 823             return
 824
 825         self.assert_no_active_block_jobs()
 826
 827         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 828                              node_name="repair0",
 829                              replaces="img1",
 830                              target=quorum_repair_img, format=iotests.imgfmt)
 831         self.assert_qmp(result, 'return', {})
 832
 833         self.cancel_and_wait(drive="quorum0", force=True)
 834         # here we check that the last registered quorum file has not been
 835         # swapped out and unref
 836         result = self.vm.qmp('query-named-block-nodes')
 837         self.assert_qmp(result, 'return[1]/file', quorum_img3)
 838         self.vm.shutdown()
 839
 840     def test_cancel_after_ready(self):
 841         if not self.has_quorum():
 842             return
 843
 844         self.assert_no_active_block_jobs()
 845
 846         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 847                              node_name="repair0",
 848                              replaces="img1",
 849                              target=quorum_repair_img, format=iotests.imgfmt)
 850         self.assert_qmp(result, 'return', {})
 851
 852         self.wait_ready_and_cancel(drive="quorum0")
 853         result = self.vm.qmp('query-named-block-nodes')
 854         # here we check that the last registered quorum file has not been
 855         # swapped out and unref
 856         self.assert_qmp(result, 'return[1]/file', quorum_img3)
 857         self.vm.shutdown()
 858         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 859                         'target image does not match source after mirroring')
 860
 861     def test_pause(self):
 862         if not self.has_quorum():
 863             return
 864
 865         self.assert_no_active_block_jobs()
 866
 867         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 868                              node_name="repair0",
 869                              replaces="img1",
 870                              target=quorum_repair_img, format=iotests.imgfmt)
 871         self.assert_qmp(result, 'return', {})
 872
 873         result = self.vm.qmp('block-job-pause', device='quorum0')
 874         self.assert_qmp(result, 'return', {})
 875
 876         time.sleep(1)
 877         result = self.vm.qmp('query-block-jobs')
 878         offset = self.dictpath(result, 'return[0]/offset')
 879
 880         time.sleep(1)
 881         result = self.vm.qmp('query-block-jobs')
 882         self.assert_qmp(result, 'return[0]/offset', offset)
 883
 884         result = self.vm.qmp('block-job-resume', device='quorum0')
 885         self.assert_qmp(result, 'return', {})
 886
 887         self.complete_and_wait(drive="quorum0")
 888         self.vm.shutdown()
 889         self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
 890                         'target image does not match source after mirroring')
 891
 892     def test_medium_not_found(self):
 893         if not self.has_quorum():
 894             return
 895
 896         if iotests.qemu_default_machine != 'pc':
 897             return
 898
 899         result = self.vm.qmp('drive-mirror', device='drive0', # CD-ROM
 900                              sync='full',
 901                              node_name='repair0',
 902                              replaces='img1',
 903                              target=quorum_repair_img, format=iotests.imgfmt)
 904         self.assert_qmp(result, 'error/class', 'GenericError')
 905
 906     def test_image_not_found(self):
 907         if not self.has_quorum():
 908             return
 909
 910         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 911                              node_name='repair0',
 912                              replaces='img1',
 913                              mode='existing',
 914                              target=quorum_repair_img, format=iotests.imgfmt)
 915         self.assert_qmp(result, 'error/class', 'GenericError')
 916
 917     def test_device_not_found(self):
 918         if not self.has_quorum():
 919             return
 920
 921         result = self.vm.qmp('drive-mirror', device='nonexistent', sync='full',
 922                              node_name='repair0',
 923                              replaces='img1',
 924                              target=quorum_repair_img, format=iotests.imgfmt)
 925         self.assert_qmp(result, 'error/class', 'DeviceNotFound')
 926
 927     def test_wrong_sync_mode(self):
 928         if not self.has_quorum():
 929             return
 930
 931         result = self.vm.qmp('drive-mirror', device='quorum0',
 932                              node_name='repair0',
 933                              replaces='img1',
 934                              target=quorum_repair_img, format=iotests.imgfmt)
 935         self.assert_qmp(result, 'error/class', 'GenericError')
 936
 937     def test_no_node_name(self):
 938         if not self.has_quorum():
 939             return
 940
 941         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 942                              replaces='img1',
 943                              target=quorum_repair_img, format=iotests.imgfmt)
 944         self.assert_qmp(result, 'error/class', 'GenericError')
 945
 946     def test_nonexistent_replaces(self):
 947         if not self.has_quorum():
 948             return
 949
 950         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 951                              node_name='repair0',
 952                              replaces='img77',
 953                              target=quorum_repair_img, format=iotests.imgfmt)
 954         self.assert_qmp(result, 'error/class', 'GenericError')
 955
 956     def test_after_a_quorum_snapshot(self):
 957         if not self.has_quorum():
 958             return
 959
 960         result = self.vm.qmp('blockdev-snapshot-sync', node_name='img1',
 961                              snapshot_file=quorum_snapshot_file,
 962                              snapshot_node_name="snap1");
 963
 964         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 965                              node_name='repair0',
 966                              replaces="img1",
 967                              target=quorum_repair_img, format=iotests.imgfmt)
 968         self.assert_qmp(result, 'error/class', 'GenericError')
 969
 970         result = self.vm.qmp('drive-mirror', device='quorum0', sync='full',
 971                              node_name='repair0',
 972                              replaces="snap1",
 973                              target=quorum_repair_img, format=iotests.imgfmt)
 974         self.assert_qmp(result, 'return', {})
 975
 976         self.complete_and_wait(drive="quorum0")
 977         result = self.vm.qmp('query-named-block-nodes')
 978         self.assert_qmp(result, 'return[0]/file', quorum_repair_img)
 979         # TODO: a better test requiring some QEMU infrastructure will be added
 980         #       to check that this file is really driven by quorum
 981         self.vm.shutdown()
 982
 983 if __name__ == '__main__':
 984     iotests.main(supported_fmts=['qcow2', 'qed'])