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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# $Id: tdTreeDepth1.py $
"""
VirtualBox Validation Kit - Medium and Snapshot Tree Depth Test #1
"""
__copyright__ = \
"""
Copyright (C) 2010-2023 Oracle and/or its affiliates.
This file is part of VirtualBox base platform packages, as
available from https://www.virtualbox.org.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, in version 3 of the
License.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <https://www.gnu.org/licenses>.
The contents of this file may alternatively be used under the terms
of the Common Development and Distribution License Version 1.0
(CDDL), a copy of it is provided in the "COPYING.CDDL" file included
in the VirtualBox distribution, in which case the provisions of the
CDDL are applicable instead of those of the GPL.
You may elect to license modified versions of this file under the
terms and conditions of either the GPL or the CDDL or both.
SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
"""
__version__ = "$Revision: 156148 $"
# Standard Python imports.
import os
import sys
import random
# Only the main script needs to modify the path.
try: __file__
except: __file__ = sys.argv[0]
g_ksValidationKitDir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(g_ksValidationKitDir)
# Validation Kit imports.
from testdriver import base
from testdriver import reporter
from testdriver import vboxcon
class SubTstDrvTreeDepth1(base.SubTestDriverBase):
"""
Sub-test driver for Medium and Snapshot Tree Depth Test #1.
"""
def __init__(self, oTstDrv):
base.SubTestDriverBase.__init__(self, oTstDrv, 'tree-depth', 'Media and Snapshot tree depths');
def testIt(self):
"""
Execute the sub-testcase.
"""
return self.testMediumTreeDepth() \
and self.testSnapshotTreeDepth()
#
# Test execution helpers.
#
def testMediumTreeDepth(self):
"""
Test medium tree depth.
"""
reporter.testStart('mediumTreeDepth')
try:
oVBox = self.oTstDrv.oVBoxMgr.getVirtualBox()
oVM = self.oTstDrv.createTestVM('test-medium', 1, None, 4)
assert oVM is not None
# create chain with up to 64 disk images (medium tree depth limit)
fRc = True
oSession = self.oTstDrv.openSession(oVM)
cImages = random.randrange(1, 64);
reporter.log('Creating chain with %d disk images' % (cImages))
for i in range(1, cImages + 1):
sHddPath = os.path.join(self.oTstDrv.sScratchPath, 'Test' + str(i) + '.vdi')
if i == 1:
oHd = oSession.createBaseHd(sHddPath, cb=1024*1024)
else:
oHd = oSession.createDiffHd(oHd, sHddPath)
if oHd is None:
fRc = False
break
# modify the VM config, attach HDD
fRc = fRc and oSession.attachHd(sHddPath, sController='SATA Controller', fImmutable=False, fForceResource=False)
fRc = fRc and oSession.saveSettings()
fRc = oSession.close() and fRc
## @todo r=klaus: count known hard disk images, should be cImages
# unregister, making sure the images are closed
sSettingsFile = oVM.settingsFilePath
fDetachAll = random.choice([False, True])
if fDetachAll:
reporter.log('unregistering VM, DetachAll style')
else:
reporter.log('unregistering VM, UnregisterOnly style')
self.oTstDrv.forgetTestMachine(oVM)
if fDetachAll:
aoHDs = oVM.unregister(vboxcon.CleanupMode_DetachAllReturnHardDisksOnly)
for oHD in aoHDs:
oHD.close()
aoHDs = None
else:
oVM.unregister(vboxcon.CleanupMode_UnregisterOnly)
oVM = None
# If there is no base image (expected) then there are no leftover
# child images either. Can be changed later once the todos above
# and below are resolved.
cBaseImages = len(self.oTstDrv.oVBoxMgr.getArray(oVBox, 'hardDisks'))
reporter.log('API reports %i base images' % (cBaseImages))
fRc = fRc and cBaseImages == 0
if cBaseImages != 0:
reporter.error('Got %d initial base images, expected %d' % (cBaseImages, 0));
# re-register to test loading of settings
reporter.log('opening VM %s, testing config reading' % (sSettingsFile))
if self.oTstDrv.fpApiVer >= 7.0:
# Needs a password parameter since 7.0.
oVM = oVBox.openMachine(sSettingsFile, "")
else:
oVM = oVBox.openMachine(sSettingsFile)
oVBox.registerMachine(oVM);
## @todo r=klaus: count known hard disk images, should be cImages
reporter.log('unregistering VM')
oVM.unregister(vboxcon.CleanupMode_UnregisterOnly)
oVM = None
cBaseImages = len(self.oTstDrv.oVBoxMgr.getArray(oVBox, 'hardDisks'))
reporter.log('API reports %i base images' % (cBaseImages))
fRc = fRc and cBaseImages == 0
if cBaseImages != 0:
reporter.error('Got %d base images after unregistering, expected %d' % (cBaseImages, 0));
except:
reporter.errorXcpt()
return reporter.testDone()[1] == 0
def testSnapshotTreeDepth(self):
"""
Test snapshot tree depth.
"""
reporter.testStart('snapshotTreeDepth')
try:
oVBox = self.oTstDrv.oVBoxMgr.getVirtualBox()
oVM = self.oTstDrv.createTestVM('test-snap', 1, None, 4)
assert oVM is not None
# modify the VM config, create and attach empty HDD
oSession = self.oTstDrv.openSession(oVM)
sHddPath = os.path.join(self.oTstDrv.sScratchPath, 'TestSnapEmpty.vdi')
fRc = True
fRc = fRc and oSession.createAndAttachHd(sHddPath, cb=1024*1024, sController='SATA Controller', fImmutable=False)
fRc = fRc and oSession.saveSettings()
# take up to 200 snapshots (250 is the snapshot tree depth limit (settings.h:SETTINGS_SNAPSHOT_DEPTH_MAX))
cSnapshots = random.randrange(1, 200);
reporter.log('Taking %d snapshots' % (cSnapshots))
for i in range(1, cSnapshots + 1):
fRc = fRc and oSession.takeSnapshot('Snapshot ' + str(i))
fRc = oSession.close() and fRc
oSession = None
reporter.log('API reports %i snapshots' % (oVM.snapshotCount))
fRc = fRc and oVM.snapshotCount == cSnapshots
if oVM.snapshotCount != cSnapshots:
reporter.error('Got %d initial snapshots, expected %d' % (oVM.snapshotCount, cSnapshots));
# unregister, making sure the images are closed
sSettingsFile = oVM.settingsFilePath
fDetachAll = random.choice([False, True])
if fDetachAll:
reporter.log('unregistering VM, DetachAll style')
else:
reporter.log('unregistering VM, UnregisterOnly style')
self.oTstDrv.forgetTestMachine(oVM)
if fDetachAll:
aoHDs = oVM.unregister(vboxcon.CleanupMode_DetachAllReturnHardDisksOnly)
for oHD in aoHDs:
oHD.close()
aoHDs = None
else:
oVM.unregister(vboxcon.CleanupMode_UnregisterOnly)
oVM = None
# If there is no base image (expected) then there are no leftover
# child images either. Can be changed later once the todos above
# and below are resolved.
cBaseImages = len(self.oTstDrv.oVBoxMgr.getArray(oVBox, 'hardDisks'))
reporter.log('API reports %i base images' % (cBaseImages))
fRc = fRc and cBaseImages == 0
if cBaseImages != 0:
reporter.error('Got %d initial base images, expected %d' % (cBaseImages, 0));
# re-register to test loading of settings
reporter.log('opening VM %s, testing config reading' % (sSettingsFile))
if self.oTstDrv.fpApiVer >= 7.0:
# Needs a password parameter since 7.0.
oVM = oVBox.openMachine(sSettingsFile, "")
else:
oVM = oVBox.openMachine(sSettingsFile)
oVBox.registerMachine(oVM);
reporter.log('API reports %i snapshots' % (oVM.snapshotCount))
fRc = fRc and oVM.snapshotCount == cSnapshots
if oVM.snapshotCount != cSnapshots:
reporter.error('Got %d snapshots after re-registering, expected %d' % (oVM.snapshotCount, cSnapshots));
reporter.log('unregistering VM')
oVM.unregister(vboxcon.CleanupMode_UnregisterOnly)
oVM = None
cBaseImages = len(self.oTstDrv.oVBoxMgr.getArray(oVBox, 'hardDisks'))
reporter.log('API reports %i base images' % (cBaseImages))
fRc = fRc and cBaseImages == 0
if cBaseImages != 0:
reporter.error('Got %d base images after unregistering, expected %d' % (cBaseImages, 0));
except:
reporter.errorXcpt()
return reporter.testDone()[1] == 0
if __name__ == '__main__':
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
from tdApi1 import tdApi1; # pylint: disable=relative-import
sys.exit(tdApi1([SubTstDrvTreeDepth1]).main(sys.argv))
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