tests/qemu-iotests/118

   1 #!/usr/bin/env python
   2 #
   3 # Test case for the QMP 'change' command and all other associated
   4 # commands
   5 #
   6 # Copyright (C) 2015 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
  22 import os
  23 import stat
  24 import time
  25 import iotests
  26 from iotests import qemu_img
  27
  28 old_img = os.path.join(iotests.test_dir, 'test0.img')
  29 new_img = os.path.join(iotests.test_dir, 'test1.img')
  30
  31 def interface_to_device_name(interface):
  32     if interface == 'ide':
  33         return 'ide-cd'
  34     elif interface == 'floppy':
  35         return 'floppy'
  36     else:
  37         return None
  38
  39 class ChangeBaseClass(iotests.QMPTestCase):
  40     has_opened = False
  41     has_closed = False
  42
  43     def process_events(self):
  44         for event in self.vm.get_qmp_events(wait=False):
  45             if (event['event'] == 'DEVICE_TRAY_MOVED' and
  46                 event['data']['device'] == 'drive0'):
  47                 if event['data']['tray-open'] == False:
  48                     self.has_closed = True
  49                 else:
  50                     self.has_opened = True
  51
  52     def wait_for_open(self):
  53         if not self.has_real_tray:
  54             return
  55
  56         timeout = time.clock() + 3
  57         while not self.has_opened and time.clock() < timeout:
  58             self.process_events()
  59         if not self.has_opened:
  60             self.fail('Timeout while waiting for the tray to open')
  61
  62     def wait_for_close(self):
  63         if not self.has_real_tray:
  64             return
  65
  66         timeout = time.clock() + 3
  67         while not self.has_closed and time.clock() < timeout:
  68             self.process_events()
  69         if not self.has_opened:
  70             self.fail('Timeout while waiting for the tray to close')
  71
  72 class GeneralChangeTestsBaseClass(ChangeBaseClass):
  73
  74     device_name = 'qdev0'
  75
  76     def test_change(self):
  77         result = self.vm.qmp('change', device='drive0', target=new_img,
  78                                        arg=iotests.imgfmt)
  79         self.assert_qmp(result, 'return', {})
  80
  81         self.wait_for_open()
  82         self.wait_for_close()
  83
  84         result = self.vm.qmp('query-block')
  85         if self.has_real_tray:
  86             self.assert_qmp(result, 'return[0]/tray_open', False)
  87         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
  88
  89     def test_blockdev_change_medium(self):
  90         result = self.vm.qmp('blockdev-change-medium',
  91                              id=self.device_name, filename=new_img,
  92                              format=iotests.imgfmt)
  93
  94         self.assert_qmp(result, 'return', {})
  95
  96         self.wait_for_open()
  97         self.wait_for_close()
  98
  99         result = self.vm.qmp('query-block')
 100         if self.has_real_tray:
 101             self.assert_qmp(result, 'return[0]/tray_open', False)
 102         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 103
 104     def test_eject(self):
 105         result = self.vm.qmp('eject', id=self.device_name, force=True)
 106         self.assert_qmp(result, 'return', {})
 107
 108         self.wait_for_open()
 109
 110         result = self.vm.qmp('query-block')
 111         if self.has_real_tray:
 112             self.assert_qmp(result, 'return[0]/tray_open', True)
 113         self.assert_qmp_absent(result, 'return[0]/inserted')
 114
 115     def test_tray_eject_change(self):
 116         result = self.vm.qmp('eject', id=self.device_name, force=True)
 117         self.assert_qmp(result, 'return', {})
 118
 119         self.wait_for_open()
 120
 121         result = self.vm.qmp('query-block')
 122         if self.has_real_tray:
 123             self.assert_qmp(result, 'return[0]/tray_open', True)
 124         self.assert_qmp_absent(result, 'return[0]/inserted')
 125
 126         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 127                              filename=new_img, format=iotests.imgfmt)
 128         self.assert_qmp(result, 'return', {})
 129
 130         self.wait_for_close()
 131
 132         result = self.vm.qmp('query-block')
 133         if self.has_real_tray:
 134             self.assert_qmp(result, 'return[0]/tray_open', False)
 135         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 136
 137     def test_tray_open_close(self):
 138         result = self.vm.qmp('blockdev-open-tray',
 139                              id=self.device_name, force=True)
 140         self.assert_qmp(result, 'return', {})
 141
 142         self.wait_for_open()
 143
 144         result = self.vm.qmp('query-block')
 145         if self.has_real_tray:
 146             self.assert_qmp(result, 'return[0]/tray_open', True)
 147         if self.was_empty == True:
 148             self.assert_qmp_absent(result, 'return[0]/inserted')
 149         else:
 150             self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 151
 152         result = self.vm.qmp('blockdev-close-tray', id=self.device_name)
 153         self.assert_qmp(result, 'return', {})
 154
 155         if self.has_real_tray or not self.was_empty:
 156             self.wait_for_close()
 157
 158         result = self.vm.qmp('query-block')
 159         if self.has_real_tray:
 160             self.assert_qmp(result, 'return[0]/tray_open', False)
 161         if self.was_empty == True:
 162             self.assert_qmp_absent(result, 'return[0]/inserted')
 163         else:
 164             self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 165
 166     def test_tray_eject_close(self):
 167         result = self.vm.qmp('eject', id=self.device_name, force=True)
 168         self.assert_qmp(result, 'return', {})
 169
 170         self.wait_for_open()
 171
 172         result = self.vm.qmp('query-block')
 173         if self.has_real_tray:
 174             self.assert_qmp(result, 'return[0]/tray_open', True)
 175         self.assert_qmp_absent(result, 'return[0]/inserted')
 176
 177         result = self.vm.qmp('blockdev-close-tray', id=self.device_name)
 178         self.assert_qmp(result, 'return', {})
 179
 180         self.wait_for_close()
 181
 182         result = self.vm.qmp('query-block')
 183         if self.has_real_tray:
 184             self.assert_qmp(result, 'return[0]/tray_open', False)
 185         self.assert_qmp_absent(result, 'return[0]/inserted')
 186
 187     def test_tray_open_change(self):
 188         result = self.vm.qmp('blockdev-open-tray', id=self.device_name,
 189                                                    force=True)
 190         self.assert_qmp(result, 'return', {})
 191
 192         self.wait_for_open()
 193
 194         result = self.vm.qmp('query-block')
 195         if self.has_real_tray:
 196             self.assert_qmp(result, 'return[0]/tray_open', True)
 197         if self.was_empty == True:
 198             self.assert_qmp_absent(result, 'return[0]/inserted')
 199         else:
 200             self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 201
 202         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 203                                                        filename=new_img,
 204                                                        format=iotests.imgfmt)
 205         self.assert_qmp(result, 'return', {})
 206
 207         self.wait_for_close()
 208
 209         result = self.vm.qmp('query-block')
 210         if self.has_real_tray:
 211             self.assert_qmp(result, 'return[0]/tray_open', False)
 212         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 213
 214     def test_cycle(self):
 215         result = self.vm.qmp('blockdev-add',
 216                              node_name='new',
 217                              driver=iotests.imgfmt,
 218                              file={'filename': new_img,
 219                                     'driver': 'file'})
 220         self.assert_qmp(result, 'return', {})
 221
 222         result = self.vm.qmp('blockdev-open-tray',
 223                              id=self.device_name, force=True)
 224         self.assert_qmp(result, 'return', {})
 225
 226         self.wait_for_open()
 227
 228         result = self.vm.qmp('query-block')
 229         if self.has_real_tray:
 230             self.assert_qmp(result, 'return[0]/tray_open', True)
 231         if self.was_empty == True:
 232             self.assert_qmp_absent(result, 'return[0]/inserted')
 233         else:
 234             self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 235
 236         result = self.vm.qmp('blockdev-remove-medium',
 237                              id=self.device_name)
 238         self.assert_qmp(result, 'return', {})
 239
 240         result = self.vm.qmp('query-block')
 241         if self.has_real_tray:
 242             self.assert_qmp(result, 'return[0]/tray_open', True)
 243         self.assert_qmp_absent(result, 'return[0]/inserted')
 244
 245         result = self.vm.qmp('blockdev-insert-medium',
 246                              id=self.device_name, node_name='new')
 247         self.assert_qmp(result, 'return', {})
 248
 249         result = self.vm.qmp('query-block')
 250         if self.has_real_tray:
 251             self.assert_qmp(result, 'return[0]/tray_open', True)
 252         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 253
 254         result = self.vm.qmp('blockdev-close-tray', id=self.device_name)
 255         self.assert_qmp(result, 'return', {})
 256
 257         self.wait_for_close()
 258
 259         result = self.vm.qmp('query-block')
 260         if self.has_real_tray:
 261             self.assert_qmp(result, 'return[0]/tray_open', False)
 262         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 263
 264     def test_close_on_closed(self):
 265         result = self.vm.qmp('blockdev-close-tray', id=self.device_name)
 266         # Should be a no-op
 267         self.assert_qmp(result, 'return', {})
 268         self.assertEquals(self.vm.get_qmp_events(wait=False), [])
 269
 270     def test_remove_on_closed(self):
 271         if not self.has_real_tray:
 272             return
 273
 274         result = self.vm.qmp('blockdev-remove-medium', id=self.device_name)
 275         self.assert_qmp(result, 'error/class', 'GenericError')
 276
 277     def test_insert_on_closed(self):
 278         if not self.has_real_tray:
 279             return
 280
 281         result = self.vm.qmp('blockdev-add',
 282                              node_name='new',
 283                              driver=iotests.imgfmt,
 284                              file={'filename': new_img,
 285                                    'driver': 'file'})
 286         self.assert_qmp(result, 'return', {})
 287
 288         result = self.vm.qmp('blockdev-insert-medium', id=self.device_name,
 289                                                        node_name='new')
 290         self.assert_qmp(result, 'error/class', 'GenericError')
 291
 292 class TestInitiallyFilled(GeneralChangeTestsBaseClass):
 293     was_empty = False
 294
 295     def setUp(self, media, interface):
 296         qemu_img('create', '-f', iotests.imgfmt, old_img, '1440k')
 297         qemu_img('create', '-f', iotests.imgfmt, new_img, '1440k')
 298         self.vm = iotests.VM()
 299         self.vm.add_drive(old_img, 'media=%s' % media, 'none')
 300         self.vm.add_device('%s,drive=drive0,id=%s' %
 301                            (interface_to_device_name(interface),
 302                             self.device_name))
 303         self.vm.launch()
 304
 305     def tearDown(self):
 306         self.vm.shutdown()
 307         os.remove(old_img)
 308         os.remove(new_img)
 309
 310     def test_insert_on_filled(self):
 311         result = self.vm.qmp('blockdev-add',
 312                              node_name='new',
 313                              driver=iotests.imgfmt,
 314                              file={'filename': new_img,
 315                                    'driver': 'file'})
 316         self.assert_qmp(result, 'return', {})
 317
 318         result = self.vm.qmp('blockdev-open-tray', id=self.device_name)
 319         self.assert_qmp(result, 'return', {})
 320
 321         self.wait_for_open()
 322
 323         result = self.vm.qmp('blockdev-insert-medium', id=self.device_name,
 324                                                        node_name='new')
 325         self.assert_qmp(result, 'error/class', 'GenericError')
 326
 327 class TestInitiallyEmpty(GeneralChangeTestsBaseClass):
 328     was_empty = True
 329
 330     def setUp(self, media, interface):
 331         qemu_img('create', '-f', iotests.imgfmt, new_img, '1440k')
 332         self.vm = iotests.VM().add_drive(None, 'media=%s' % media, 'none')
 333         self.vm.add_device('%s,drive=drive0,id=%s' %
 334                            (interface_to_device_name(interface),
 335                             self.device_name))
 336         self.vm.launch()
 337
 338     def tearDown(self):
 339         self.vm.shutdown()
 340         os.remove(new_img)
 341
 342     def test_remove_on_empty(self):
 343         result = self.vm.qmp('blockdev-open-tray', id=self.device_name)
 344         self.assert_qmp(result, 'return', {})
 345
 346         self.wait_for_open()
 347
 348         result = self.vm.qmp('blockdev-remove-medium', id=self.device_name)
 349         # Should be a no-op
 350         self.assert_qmp(result, 'return', {})
 351
 352 class TestCDInitiallyFilled(TestInitiallyFilled):
 353     TestInitiallyFilled = TestInitiallyFilled
 354     has_real_tray = True
 355
 356     def setUp(self):
 357         self.TestInitiallyFilled.setUp(self, 'cdrom', 'ide')
 358
 359 class TestCDInitiallyEmpty(TestInitiallyEmpty):
 360     TestInitiallyEmpty = TestInitiallyEmpty
 361     has_real_tray = True
 362
 363     def setUp(self):
 364         self.TestInitiallyEmpty.setUp(self, 'cdrom', 'ide')
 365
 366 class TestFloppyInitiallyFilled(TestInitiallyFilled):
 367     TestInitiallyFilled = TestInitiallyFilled
 368     has_real_tray = False
 369
 370     def setUp(self):
 371         self.TestInitiallyFilled.setUp(self, 'disk', 'floppy')
 372
 373 class TestFloppyInitiallyEmpty(TestInitiallyEmpty):
 374     TestInitiallyEmpty = TestInitiallyEmpty
 375     has_real_tray = False
 376
 377     def setUp(self):
 378         self.TestInitiallyEmpty.setUp(self, 'disk', 'floppy')
 379         # FDDs not having a real tray and there not being a medium inside the
 380         # tray at startup means the tray will be considered open
 381         self.has_opened = True
 382
 383 class TestChangeReadOnly(ChangeBaseClass):
 384     device_name = 'qdev0'
 385
 386     def setUp(self):
 387         qemu_img('create', '-f', iotests.imgfmt, old_img, '1440k')
 388         qemu_img('create', '-f', iotests.imgfmt, new_img, '1440k')
 389         self.vm = iotests.VM()
 390
 391     def tearDown(self):
 392         self.vm.shutdown()
 393         os.chmod(old_img, 0666)
 394         os.chmod(new_img, 0666)
 395         os.remove(old_img)
 396         os.remove(new_img)
 397
 398     def test_ro_ro_retain(self):
 399         os.chmod(old_img, 0444)
 400         os.chmod(new_img, 0444)
 401         self.vm.add_drive(old_img, 'media=disk,read-only=on', 'none')
 402         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 403         self.vm.launch()
 404
 405         result = self.vm.qmp('query-block')
 406         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 407         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 408
 409         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 410                                                        filename=new_img,
 411                                                        format=iotests.imgfmt,
 412                                                        read_only_mode='retain')
 413         self.assert_qmp(result, 'return', {})
 414
 415         result = self.vm.qmp('query-block')
 416         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 417         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 418
 419     def test_ro_rw_retain(self):
 420         os.chmod(old_img, 0444)
 421         self.vm.add_drive(old_img, 'media=disk,read-only=on', 'none')
 422         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 423         self.vm.launch()
 424
 425         result = self.vm.qmp('query-block')
 426         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 427         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 428
 429         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 430                                                        filename=new_img,
 431                                                        format=iotests.imgfmt,
 432                                                        read_only_mode='retain')
 433         self.assert_qmp(result, 'return', {})
 434
 435         result = self.vm.qmp('query-block')
 436         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 437         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 438
 439     def test_rw_ro_retain(self):
 440         os.chmod(new_img, 0444)
 441         self.vm.add_drive(old_img, 'media=disk', 'none')
 442         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 443         self.vm.launch()
 444
 445         result = self.vm.qmp('query-block')
 446         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 447         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 448
 449         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 450                                                        filename=new_img,
 451                                                        format=iotests.imgfmt,
 452                                                        read_only_mode='retain')
 453         self.assert_qmp(result, 'error/class', 'GenericError')
 454
 455         self.assertEquals(self.vm.get_qmp_events(wait=False), [])
 456
 457         result = self.vm.qmp('query-block')
 458         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 459         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 460
 461     def test_ro_rw(self):
 462         os.chmod(old_img, 0444)
 463         self.vm.add_drive(old_img, 'media=disk,read-only=on', 'none')
 464         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 465         self.vm.launch()
 466
 467         result = self.vm.qmp('query-block')
 468         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 469         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 470
 471         result = self.vm.qmp('blockdev-change-medium',
 472                              id=self.device_name,
 473                              filename=new_img,
 474                              format=iotests.imgfmt,
 475                              read_only_mode='read-write')
 476         self.assert_qmp(result, 'return', {})
 477
 478         result = self.vm.qmp('query-block')
 479         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 480         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 481
 482     def test_rw_ro(self):
 483         os.chmod(new_img, 0444)
 484         self.vm.add_drive(old_img, 'media=disk', 'none')
 485         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 486         self.vm.launch()
 487
 488         result = self.vm.qmp('query-block')
 489         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 490         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 491
 492         result = self.vm.qmp('blockdev-change-medium',
 493                              id=self.device_name,
 494                              filename=new_img,
 495                              format=iotests.imgfmt,
 496                              read_only_mode='read-only')
 497         self.assert_qmp(result, 'return', {})
 498
 499         result = self.vm.qmp('query-block')
 500         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 501         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 502
 503     def test_make_rw_ro(self):
 504         self.vm.add_drive(old_img, 'media=disk', 'none')
 505         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 506         self.vm.launch()
 507
 508         result = self.vm.qmp('query-block')
 509         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 510         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 511
 512         result = self.vm.qmp('blockdev-change-medium',
 513                              id=self.device_name,
 514                              filename=new_img,
 515                              format=iotests.imgfmt,
 516                              read_only_mode='read-only')
 517         self.assert_qmp(result, 'return', {})
 518
 519         result = self.vm.qmp('query-block')
 520         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 521         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 522
 523     def test_make_ro_rw(self):
 524         os.chmod(new_img, 0444)
 525         self.vm.add_drive(old_img, 'media=disk', 'none')
 526         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 527         self.vm.launch()
 528
 529         result = self.vm.qmp('query-block')
 530         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 531         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 532
 533         result = self.vm.qmp('blockdev-change-medium',
 534                              id=self.device_name,
 535                              filename=new_img,
 536                              format=iotests.imgfmt,
 537                              read_only_mode='read-write')
 538         self.assert_qmp(result, 'error/class', 'GenericError')
 539
 540         result = self.vm.qmp('query-block')
 541         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 542         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 543
 544     def test_make_rw_ro_by_retain(self):
 545         os.chmod(old_img, 0444)
 546         self.vm.add_drive(old_img, 'media=disk,read-only=on', 'none')
 547         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 548         self.vm.launch()
 549
 550         result = self.vm.qmp('query-block')
 551         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 552         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 553
 554         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 555                                                        filename=new_img,
 556                                                        format=iotests.imgfmt,
 557                                                        read_only_mode='retain')
 558         self.assert_qmp(result, 'return', {})
 559
 560         result = self.vm.qmp('query-block')
 561         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 562         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 563
 564     def test_make_ro_rw_by_retain(self):
 565         os.chmod(new_img, 0444)
 566         self.vm.add_drive(old_img, 'media=disk', 'none')
 567         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 568         self.vm.launch()
 569
 570         result = self.vm.qmp('query-block')
 571         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 572         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 573
 574         result = self.vm.qmp('blockdev-change-medium', id=self.device_name,
 575                                                        filename=new_img,
 576                                                        format=iotests.imgfmt,
 577                                                        read_only_mode='retain')
 578         self.assert_qmp(result, 'error/class', 'GenericError')
 579
 580         result = self.vm.qmp('query-block')
 581         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 582         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 583
 584     def test_rw_ro_cycle(self):
 585         os.chmod(new_img, 0444)
 586         self.vm.add_drive(old_img, 'media=disk', 'none')
 587         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 588         self.vm.launch()
 589
 590         result = self.vm.qmp('query-block')
 591         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 592         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 593
 594         result = self.vm.qmp('blockdev-add',
 595                              node_name='new',
 596                              driver=iotests.imgfmt,
 597                              read_only=True,
 598                              file={'filename': new_img,
 599                                     'driver': 'file'})
 600         self.assert_qmp(result, 'return', {})
 601
 602         result = self.vm.qmp('query-block')
 603         self.assert_qmp(result, 'return[0]/inserted/ro', False)
 604         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 605
 606         result = self.vm.qmp('blockdev-remove-medium', id=self.device_name)
 607         self.assert_qmp(result, 'return', {})
 608
 609         result = self.vm.qmp('query-block')
 610         self.assert_qmp_absent(result, 'return[0]/inserted')
 611
 612         result = self.vm.qmp('blockdev-insert-medium', id=self.device_name,
 613                                                        node_name='new')
 614         self.assert_qmp(result, 'return', {})
 615
 616         result = self.vm.qmp('query-block')
 617         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 618         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 619
 620         result = self.vm.qmp('query-block')
 621         self.assert_qmp(result, 'return[0]/inserted/ro', True)
 622         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 623
 624 GeneralChangeTestsBaseClass = None
 625 TestInitiallyFilled = None
 626 TestInitiallyEmpty = None
 627
 628
 629 class TestBlockJobsAfterCycle(ChangeBaseClass):
 630     device_name = 'qdev0'
 631
 632     def setUp(self):
 633         qemu_img('create', '-f', iotests.imgfmt, old_img, '1440K')
 634
 635         self.vm = iotests.VM()
 636         self.vm.add_drive_raw("id=drive0,driver=null-co,if=none")
 637         self.vm.add_device('floppy,drive=drive0,id=%s' % self.device_name)
 638         self.vm.launch()
 639
 640         result = self.vm.qmp('query-block')
 641         self.assert_qmp(result, 'return[0]/inserted/image/format', 'null-co')
 642
 643         # For device-less BBs, calling blockdev-open-tray or blockdev-close-tray
 644         # is not necessary
 645         result = self.vm.qmp('blockdev-remove-medium', id=self.device_name)
 646         self.assert_qmp(result, 'return', {})
 647
 648         result = self.vm.qmp('query-block')
 649         self.assert_qmp_absent(result, 'return[0]/inserted')
 650
 651         result = self.vm.qmp('blockdev-add',
 652                              node_name='node0',
 653                              driver=iotests.imgfmt,
 654                              file={'filename': old_img,
 655                                    'driver': 'file'})
 656         self.assert_qmp(result, 'return', {})
 657
 658         result = self.vm.qmp('blockdev-insert-medium', id=self.device_name,
 659                                                        node_name='node0')
 660         self.assert_qmp(result, 'return', {})
 661
 662         result = self.vm.qmp('query-block')
 663         self.assert_qmp(result, 'return[0]/inserted/image/filename', old_img)
 664
 665     def tearDown(self):
 666         self.vm.shutdown()
 667         os.remove(old_img)
 668         try:
 669             os.remove(new_img)
 670         except OSError:
 671             pass
 672
 673     def test_snapshot_and_commit(self):
 674         # We need backing file support
 675         if iotests.imgfmt != 'qcow2' and iotests.imgfmt != 'qed':
 676             return
 677
 678         result = self.vm.qmp('blockdev-snapshot-sync', device='drive0',
 679                                                        snapshot_file=new_img,
 680                                                        format=iotests.imgfmt)
 681         self.assert_qmp(result, 'return', {})
 682
 683         result = self.vm.qmp('query-block')
 684         self.assert_qmp(result, 'return[0]/inserted/image/filename', new_img)
 685         self.assert_qmp(result,
 686                         'return[0]/inserted/image/backing-image/filename',
 687                         old_img)
 688
 689         result = self.vm.qmp('block-commit', device='drive0')
 690         self.assert_qmp(result, 'return', {})
 691
 692         self.vm.event_wait(name='BLOCK_JOB_READY')
 693
 694         result = self.vm.qmp('query-block-jobs')
 695         self.assert_qmp(result, 'return[0]/device', 'drive0')
 696
 697         result = self.vm.qmp('block-job-complete', device='drive0')
 698         self.assert_qmp(result, 'return', {})
 699
 700         self.vm.event_wait(name='BLOCK_JOB_COMPLETED')
 701
 702
 703 if __name__ == '__main__':
 704     if iotests.qemu_default_machine != 'pc':
 705         # We need floppy and IDE CD-ROM
 706         iotests.notrun('not suitable for this machine type: %s' %
 707                        iotests.qemu_default_machine)
 708     # Need to support image creation
 709     iotests.main(supported_fmts=['vpc', 'parallels', 'qcow', 'vdi', 'qcow2',
 710                                  'vmdk', 'raw', 'vhdx', 'qed'])