The blockdev_create() function in this test case adds an error check that skips the test in case of failure because of memory shortage, but provides otherwise the same functionality as VM.blockdev_create() from iotests.py. Make it a thin wrapper around the iotests.py function. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
171 lines
5 KiB
Python
Executable file
171 lines
5 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Test VDI and file image creation
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#
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# Copyright (C) 2018 Red Hat, Inc.
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#
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# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import iotests
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from iotests import imgfmt
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iotests.verify_image_format(supported_fmts=['vdi'])
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iotests.verify_protocol(supported=['file'])
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def blockdev_create(vm, options):
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error = vm.blockdev_create(options)
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if error and 'Could not allocate bmap' in error:
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iotests.notrun('Insufficient memory')
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with iotests.FilePath('t.vdi') as disk_path, \
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iotests.VM() as vm:
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#
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# Successful image creation (defaults)
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#
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iotests.log("=== Successful image creation (defaults) ===")
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iotests.log("")
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size = 128 * 1024 * 1024
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vm.launch()
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blockdev_create(vm, { 'driver': 'file',
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'filename': disk_path,
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'size': 0 })
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vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
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node_name='imgfile', filters=[iotests.filter_qmp_testfiles])
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blockdev_create(vm, { 'driver': imgfmt,
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'file': 'imgfile',
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'size': size })
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vm.shutdown()
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iotests.img_info_log(disk_path)
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iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
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#
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# Successful image creation (explicit defaults)
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#
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iotests.log("=== Successful image creation (explicit defaults) ===")
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iotests.log("")
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size = 64 * 1024 * 1024
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vm.launch()
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blockdev_create(vm, { 'driver': 'file',
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'filename': disk_path,
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'size': 0 })
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blockdev_create(vm, { 'driver': imgfmt,
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'file': {
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'driver': 'file',
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'filename': disk_path,
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},
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'size': size,
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'preallocation': 'off' })
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vm.shutdown()
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iotests.img_info_log(disk_path)
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iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
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#
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# Successful image creation (with non-default options)
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#
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iotests.log("=== Successful image creation (with non-default options) ===")
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iotests.log("")
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size = 32 * 1024 * 1024
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vm.launch()
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blockdev_create(vm, { 'driver': 'file',
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'filename': disk_path,
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'size': 0 })
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blockdev_create(vm, { 'driver': imgfmt,
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'file': {
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'driver': 'file',
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'filename': disk_path,
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},
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'size': size,
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'preallocation': 'metadata' })
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vm.shutdown()
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iotests.img_info_log(disk_path)
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iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
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#
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# Invalid BlockdevRef
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#
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iotests.log("=== Invalid BlockdevRef ===")
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iotests.log("")
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vm.launch()
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blockdev_create(vm, { 'driver': imgfmt,
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'file': "this doesn't exist",
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'size': size })
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vm.shutdown()
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#
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# Zero size
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#
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iotests.log("=== Zero size ===")
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iotests.log("")
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vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
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vm.launch()
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blockdev_create(vm, { 'driver': imgfmt,
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'file': 'node0',
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'size': 0 })
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vm.shutdown()
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iotests.img_info_log(disk_path)
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#
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# Maximum size
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#
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iotests.log("=== Maximum size ===")
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iotests.log("")
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vm.launch()
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blockdev_create(vm, { 'driver': imgfmt,
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'file': 'node0',
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'size': 562949819203584 })
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vm.shutdown()
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iotests.img_info_log(disk_path)
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#
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# Invalid sizes
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#
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# TODO Negative image sizes aren't handled correctly, but this is a problem
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# with QAPI's implementation of the 'size' type and affects other commands
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# as well. Once this is fixed, we may want to add a test case here.
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# 1. 2^64 - 512
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# 2. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
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# 3. 0x1fffff8000001 (one byte more than maximum image size for VDI)
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iotests.log("=== Invalid sizes ===")
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iotests.log("")
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vm.launch()
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for size in [ 18446744073709551104, 9223372036854775808, 562949819203585 ]:
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blockdev_create(vm, { 'driver': imgfmt,
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'file': 'node0',
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'size': size })
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vm.shutdown()
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