tests/qemu-iotests/211

   1 #!/usr/bin/env python
   2 #
   3 # Test VDI and file image creation
   4 #
   5 # Copyright (C) 2018 Red Hat, Inc.
   6 #
   7 # Creator/Owner: Kevin Wolf <kwolf@redhat.com>
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 import iotests
  24 from iotests import imgfmt
  25
  26 iotests.verify_image_format(supported_fmts=['vdi'])
  27 iotests.verify_protocol(supported=['file'])
  28
  29 def blockdev_create(vm, options):
  30     result = vm.qmp_log('blockdev-create', job_id='job0', options=options)
  31
  32     if 'return' in result:
  33         assert result['return'] == {}
  34         vm.run_job('job0')
  35     iotests.log("")
  36
  37 with iotests.FilePath('t.vdi') as disk_path, \
  38      iotests.VM() as vm:
  39
  40     #
  41     # Successful image creation (defaults)
  42     #
  43     iotests.log("=== Successful image creation (defaults) ===")
  44     iotests.log("")
  45
  46     size = 128 * 1024 * 1024
  47
  48     vm.launch()
  49     blockdev_create(vm, { 'driver': 'file',
  50                           'filename': disk_path,
  51                           'size': 0 })
  52
  53     vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
  54                node_name='imgfile')
  55
  56     blockdev_create(vm, { 'driver': imgfmt,
  57                           'file': 'imgfile',
  58                           'size': size })
  59     vm.shutdown()
  60
  61     iotests.img_info_log(disk_path)
  62     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  63
  64     #
  65     # Successful image creation (explicit defaults)
  66     #
  67     iotests.log("=== Successful image creation (explicit defaults) ===")
  68     iotests.log("")
  69
  70     size = 64 * 1024 * 1024
  71
  72     vm.launch()
  73     blockdev_create(vm, { 'driver': 'file',
  74                           'filename': disk_path,
  75                           'size': 0 })
  76     blockdev_create(vm, { 'driver': imgfmt,
  77                           'file': {
  78                               'driver': 'file',
  79                               'filename': disk_path,
  80                           },
  81                           'size': size,
  82                           'preallocation': 'off' })
  83     vm.shutdown()
  84
  85     iotests.img_info_log(disk_path)
  86     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  87
  88     #
  89     # Successful image creation (with non-default options)
  90     #
  91     iotests.log("=== Successful image creation (with non-default options) ===")
  92     iotests.log("")
  93
  94     size = 32 * 1024 * 1024
  95
  96     vm.launch()
  97     blockdev_create(vm, { 'driver': 'file',
  98                           'filename': disk_path,
  99                           'size': 0 })
 100     blockdev_create(vm, { 'driver': imgfmt,
 101                           'file': {
 102                               'driver': 'file',
 103                               'filename': disk_path,
 104                           },
 105                           'size': size,
 106                           'preallocation': 'metadata' })
 107     vm.shutdown()
 108
 109     iotests.img_info_log(disk_path)
 110     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
 111
 112     #
 113     # Invalid BlockdevRef
 114     #
 115     iotests.log("=== Invalid BlockdevRef ===")
 116     iotests.log("")
 117
 118     vm.launch()
 119     blockdev_create(vm, { 'driver': imgfmt,
 120                           'file': "this doesn't exist",
 121                           'size': size })
 122     vm.shutdown()
 123
 124     #
 125     # Zero size
 126     #
 127     iotests.log("=== Zero size ===")
 128     iotests.log("")
 129
 130     vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
 131     vm.launch()
 132     blockdev_create(vm, { 'driver': imgfmt,
 133                           'file': 'node0',
 134                           'size': 0 })
 135     vm.shutdown()
 136
 137     iotests.img_info_log(disk_path)
 138
 139     #
 140     # Maximum size
 141     #
 142     iotests.log("=== Maximum size ===")
 143     iotests.log("")
 144
 145     vm.launch()
 146     blockdev_create(vm, { 'driver': imgfmt,
 147                           'file': 'node0',
 148                           'size': 562949819203584 })
 149     vm.shutdown()
 150
 151     iotests.img_info_log(disk_path)
 152
 153     #
 154     # Invalid sizes
 155     #
 156
 157     # TODO Negative image sizes aren't handled correctly, but this is a problem
 158     # with QAPI's implementation of the 'size' type and affects other commands
 159     # as well. Once this is fixed, we may want to add a test case here.
 160
 161     # 1. 2^64 - 512
 162     # 2. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
 163     # 3. 0x1fffff8000001 (one byte more than maximum image size for VDI)
 164
 165     iotests.log("=== Invalid sizes ===")
 166     iotests.log("")
 167
 168     vm.launch()
 169     for size in [ 18446744073709551104, 9223372036854775808, 562949819203585 ]:
 170         blockdev_create(vm, { 'driver': imgfmt,
 171                               'file': 'node0',
 172                               'size': size })
 173     vm.shutdown()