| 1 | #!/usr/bin/env python
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| 2 | # -*- coding: utf-8 -*-
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| 3 | # $Id: tdTreeDepth1.py 106061 2024-09-16 14:03:52Z vboxsync $
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| 4 |
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| 5 | """
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| 6 | VirtualBox Validation Kit - Medium and Snapshot Tree Depth Test #1
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| 7 | """
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| 8 |
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| 9 | __copyright__ = \
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| 10 | """
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| 11 | Copyright (C) 2010-2024 Oracle and/or its affiliates.
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| 12 |
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| 13 | This file is part of VirtualBox base platform packages, as
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| 14 | available from https://www.virtualbox.org.
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| 15 |
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| 16 | This program is free software; you can redistribute it and/or
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| 17 | modify it under the terms of the GNU General Public License
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| 18 | as published by the Free Software Foundation, in version 3 of the
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| 19 | License.
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| 20 |
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| 21 | This program is distributed in the hope that it will be useful, but
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| 22 | WITHOUT ANY WARRANTY; without even the implied warranty of
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| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 24 | General Public License for more details.
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| 25 |
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| 26 | You should have received a copy of the GNU General Public License
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| 27 | along with this program; if not, see <https://www.gnu.org/licenses>.
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| 28 |
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| 29 | The contents of this file may alternatively be used under the terms
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| 30 | of the Common Development and Distribution License Version 1.0
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| 31 | (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 32 | in the VirtualBox distribution, in which case the provisions of the
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| 33 | CDDL are applicable instead of those of the GPL.
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| 34 |
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| 35 | You may elect to license modified versions of this file under the
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| 36 | terms and conditions of either the GPL or the CDDL or both.
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| 37 |
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| 38 | SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 39 | """
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| 40 | __version__ = "$Revision: 106061 $"
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| 41 |
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| 42 |
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| 43 | # Standard Python imports.
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| 44 | import os
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| 45 | import sys
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| 46 | import random
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| 47 | import time
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| 48 | import gc
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| 49 |
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| 50 | # Only the main script needs to modify the path.
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| 51 | try: __file__ # pylint: disable=used-before-assignment
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| 52 | except: __file__ = sys.argv[0]
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| 53 | g_ksValidationKitDir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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| 54 | sys.path.append(g_ksValidationKitDir)
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| 55 |
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| 56 | # Validation Kit imports.
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| 57 | from testdriver import base
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| 58 | from testdriver import reporter
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| 59 | from testdriver import vboxcon
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| 60 |
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| 61 |
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| 62 | class SubTstDrvTreeDepth1(base.SubTestDriverBase):
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| 63 | """
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| 64 | Sub-test driver for Medium and Snapshot Tree Depth Test #1.
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| 65 | """
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| 66 |
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| 67 | def __init__(self, oTstDrv):
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| 68 | base.SubTestDriverBase.__init__(self, oTstDrv, 'tree-depth', 'Media and Snapshot tree depths');
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| 69 |
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| 70 | def testIt(self):
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| 71 | """
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| 72 | Execute the sub-testcase.
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| 73 | """
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| 74 | return self.testMediumTreeDepth() \
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| 75 | and self.testSnapshotTreeDepth();
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| 76 |
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| 77 | def getNumOfAttachedHDs(self, oVM, sController):
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| 78 | """
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| 79 | Helper routine for counting the hard disks, including differencing disks,
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| 80 | attached to the specified countroller.
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| 81 | """
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| 82 | try:
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| 83 | aoMediumAttachments = oVM.getMediumAttachmentsOfController(sController);
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| 84 | except:
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| 85 | reporter.errorXcpt('oVM.getMediumAttachmentsOfController("%s") failed' % (sController));
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| 86 | return -1;
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| 87 |
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| 88 | cDisks = 0;
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| 89 | for oAttachment in aoMediumAttachments:
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| 90 | oMedium = oAttachment.medium;
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| 91 | if oMedium.deviceType is vboxcon.DeviceType_HardDisk:
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| 92 | cDisks = cDisks + 1;
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| 93 | reporter.log2('base medium = %s cDisks = %d' % (oMedium.location, cDisks));
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| 94 | oParentMedium = oMedium.parent;
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| 95 | while oParentMedium is not None:
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| 96 | cDisks = cDisks + 1;
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| 97 | reporter.log2('parent medium = %s cDisks = %d' % (oParentMedium.location, cDisks));
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| 98 | oParentMedium = oParentMedium.parent;
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| 99 | return cDisks;
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| 100 |
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| 101 | def getNumOfHDsFromHardDisksArray(self):
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| 102 | """
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| 103 | Helper routine for counting the hard disks that belong to this VM which are
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| 104 | contained in the global IVirtualBox::hardDisks[] array (which contains base media
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| 105 | only).
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| 106 | """
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| 107 | cDisks = 0;
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| 108 | aoHDs = self.oTstDrv.oVBoxMgr.getArray(self.oTstDrv.oVBox, 'hardDisks');
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| 109 | # Walk the IVirtualBox::hardDisks[] array for hard disks belonging to this VM.
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| 110 | # The array may contain entries from other VMs created by previous API tessts
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| 111 | # which haven't unregistered and deleted their VM's configuration. The location
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| 112 | # attribute of each disk looks similar to:
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| 113 | # /var/tmp/VBoxTestTmp/VBoxUserHome/Machines/vm 2/tdAppliance1-t2-disk1.vmdk
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| 114 | # So we compare the directory where the disk is located, i.e. the 'basefolder',
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| 115 | # with our VM's basefolder which looks similar to:
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| 116 | # /var/tmp/VBoxTestTmp/VBoxUserHome/Machines/test-medium
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| 117 | # to determine if the disk belongs to us.
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| 118 | for oHD in aoHDs:
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| 119 | sHDBaseFolder = os.path.dirname(oHD.location);
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| 120 | sVMBaseFolder = os.path.join(self.oTstDrv.oVBox.systemProperties.defaultMachineFolder, 'test-medium');
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| 121 | reporter.log2('HDBaseFolder = %s VMBaseFolder = %s' % (sHDBaseFolder, sVMBaseFolder));
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| 122 | if sHDBaseFolder== sVMBaseFolder:
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| 123 | cDisks = cDisks + 1;
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| 124 | return cDisks;
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| 125 |
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| 126 | def unregisterVM(self, oVM, enmCleanupMode):
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| 127 | """
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| 128 | Helper routine to unregister the VM using the CleanupMode specified.
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| 129 | """
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| 130 | reporter.log('unregistering VM using %s' % enmCleanupMode);
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| 131 | if enmCleanupMode == 'DetachAllReturnHardDisksOnly':
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| 132 | try:
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| 133 | aoHDs = oVM.unregister(vboxcon.CleanupMode_DetachAllReturnHardDisksOnly);
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| 134 | except:
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| 135 | return reporter.logXcpt('unregister(CleanupMode_DetachAllReturnHardDisksOnly) failed');
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| 136 | for oHD in aoHDs:
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| 137 | reporter.log2('closing medium = %s' % (oHD.location));
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| 138 | oHD.close();
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| 139 | aoHDs = None;
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| 140 | elif enmCleanupMode == 'UnregisterOnly':
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| 141 | try:
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| 142 | aoHDs = oVM.unregister(vboxcon.CleanupMode_UnregisterOnly);
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| 143 | except:
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| 144 | return reporter.logXcpt('unregister(CleanupMode_UnregisterOnly) failed');
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| 145 | if aoHDs:
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| 146 | return reporter.error('unregister(CleanupMode_UnregisterOnly) failed: returned %d disks' %
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| 147 | len(aoHDs));
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| 148 | else:
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| 149 | return reporter.error('unregisterVM: unexpected CleanupMode "%s"' % enmCleanupMode);
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| 150 |
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| 151 | return True;
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| 152 |
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| 153 | def openAndRegisterMachine(self, sSettingsFile):
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| 154 | """
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| 155 | Helper routine which opens a VM and registers it.
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| 156 | """
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| 157 | reporter.log('opening VM using configuration file = %s, testing config reading' % (sSettingsFile));
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| 158 | try:
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| 159 | if self.oTstDrv.fpApiVer >= 7.0:
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| 160 | # Needs a password parameter since 7.0.
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| 161 | oVM = self.oTstDrv.oVBox.openMachine(sSettingsFile, "");
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| 162 | else:
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| 163 | oVM = self.oTstDrv.oVBox.openMachine(sSettingsFile);
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| 164 | except:
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| 165 | reporter.logXcpt('openMachine(%s) failed' % (sSettingsFile));
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| 166 | return None;
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| 167 |
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| 168 | if not oVM:
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| 169 | return None;
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| 170 |
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| 171 | try:
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| 172 | self.oTstDrv.oVBox.registerMachine(oVM);
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| 173 | except:
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| 174 | reporter.logXcpt('registerMachine(%s) failed' % (sSettingsFile));
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| 175 | return None;
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| 176 |
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| 177 | return oVM;
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| 178 |
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| 179 | #
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| 180 | # Test execution helpers.
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| 181 | #
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| 182 |
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| 183 | def testMediumTreeDepth(self):
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| 184 | """
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| 185 | Test medium tree depth.
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| 186 | """
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| 187 | reporter.testStart('mediumTreeDepth')
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| 188 |
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| 189 | oVM = self.oTstDrv.createTestVMOnly('test-medium', 'Other')
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| 190 | if oVM is None:
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| 191 | return False;
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| 192 |
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| 193 | # Save the path to the VM's settings file while oVM is valid (needed for
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| 194 | # openMachine() later when oVM is gone).
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| 195 | sSettingsFile = oVM.settingsFilePath
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| 196 |
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| 197 | oSession = self.oTstDrv.openSession(oVM)
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| 198 | if oSession is None:
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| 199 | return False;
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| 200 |
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| 201 | # create chain with up to 64 disk images (medium tree depth limit)
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| 202 | cImages = random.randrange(1, 64);
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| 203 | reporter.log('Creating chain with %d disk images' % (cImages))
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| 204 | for i in range(1, cImages + 1):
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| 205 | sHddPath = os.path.join(self.oTstDrv.sScratchPath, 'Test' + str(i) + '.vdi')
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| 206 | if i == 1:
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| 207 | oHd = oSession.createBaseHd(sHddPath, cb=1024*1024)
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| 208 | else:
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| 209 | oHd = oSession.createDiffHd(oHd, sHddPath)
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| 210 | if oHd is None:
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| 211 | return False;
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| 212 |
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| 213 | # modify the VM config, attach HDD
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| 214 | sController='SATA Controller';
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| 215 | fRc = oSession.attachHd(sHddPath, sController, fImmutable=False, fForceResource=False);
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| 216 | if fRc:
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| 217 | fRc = oSession.saveSettings(fClose=True);
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| 218 | oSession = None;
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| 219 | if not fRc:
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| 220 | return False;
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| 221 |
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| 222 | # Verify that the number of hard disks attached to the VM's only storage
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| 223 | # controller equals the number of disks created above.
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| 224 | cDisks = self.getNumOfAttachedHDs(oVM, sController);
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| 225 | reporter.log('Initial state: Number of hard disks attached = %d (should equal disks created = %d)' % (cDisks, cImages));
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| 226 | if cImages != cDisks:
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| 227 | reporter.error('Created %d disk images but found %d disks attached' % (cImages, cDisks));
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| 228 |
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| 229 | # unregister the VM using "DetachAllReturnHardDisksOnly" and confirm all
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| 230 | # hard disks were returned and subsequently closed
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| 231 | fRc = self.unregisterVM(oVM, 'DetachAllReturnHardDisksOnly');
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| 232 | if not fRc:
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| 233 | return False;
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| 234 | oVM = None;
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| 235 |
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| 236 | # If there are no base media belonging to this VM in the global IVirtualBox::hardDisks[]
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| 237 | # array (expected) then there are no leftover child images either.
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| 238 | cNumDisks = self.getNumOfHDsFromHardDisksArray();
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| 239 | reporter.log('After unregister(DetachAllReturnHardDisksOnly): API reports %d base images (should be zero)' % (cNumDisks));
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| 240 | if cNumDisks != 0:
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| 241 | reporter.error('Got %d initial base images, expected zero (0)' % (cNumDisks));
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| 242 |
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| 243 | # re-register to test loading of settings
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| 244 | oVM = self.openAndRegisterMachine(sSettingsFile);
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| 245 | if oVM is None:
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| 246 | return False;
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| 247 |
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| 248 | # Verify that the number of hard disks attached to the VM's only storage
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| 249 | # controller equals the number of disks created above.
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| 250 | cDisks = self.getNumOfAttachedHDs(oVM, sController);
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| 251 | reporter.log('After openMachine()+registerMachine(): Number of hard disks attached = %d '
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| 252 | '(should equal disks created = %d)' % (cDisks, cImages));
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| 253 | if cImages != cDisks:
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| 254 | reporter.error('Created %d disk images but after openMachine()+registerMachine() found %d disks attached' %
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| 255 | (cImages, cDisks));
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| 256 |
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| 257 | fRc = self.unregisterVM(oVM, 'UnregisterOnly');
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| 258 | if not fRc:
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| 259 | return False;
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| 260 | oVM = None;
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| 261 |
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| 262 | # When unregistering a VM with CleanupMode_UnregisterOnly the associated medium's
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| 263 | # objects will be closed when the corresponding Machine object ('oVM') is
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| 264 | # uninitialized. Assigning the 'None' object to 'oVM' will cause Python to delete
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| 265 | # the object when the garbage collector runs however this can take several seconds
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| 266 | # so we invoke the Python garbage collector manually here so we don't have to wait.
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| 267 | try:
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| 268 | gc.collect();
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| 269 | except:
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| 270 | reporter.logXcpt();
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| 271 |
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| 272 | reporter.log('Waiting three seconds for Machine::uninit() to be called to close the attached disks');
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| 273 | # Fudge factor: Machine::uninit() will be invoked when the oVM object is processed
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| 274 | # by the garbage collector above but it may take a few moments to close up to 64
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| 275 | # disks.
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| 276 | time.sleep(3);
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| 277 |
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| 278 | # If there are no base media belonging to this VM in the global IVirtualBox::hardDisks[]
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| 279 | # array (expected) then there are no leftover child images either.
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| 280 | cNumDisks = self.getNumOfHDsFromHardDisksArray();
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| 281 | reporter.log('After unregister(UnregisterOnly): API reports %d base images (should be zero)' % (cNumDisks));
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| 282 | if cNumDisks != 0:
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| 283 | reporter.error('Got %d base images after unregistering, expected zero (0)' % (cNumDisks));
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| 284 |
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| 285 | return reporter.testDone()[1] == 0;
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| 286 |
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| 287 | def testSnapshotTreeDepth(self):
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| 288 | """
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| 289 | Test snapshot tree depth.
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| 290 | """
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| 291 | reporter.testStart('snapshotTreeDepth')
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| 292 |
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| 293 | oVM = self.oTstDrv.createTestVMOnly('test-snap', 'Other');
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| 294 | if oVM is None:
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| 295 | return False;
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| 296 |
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| 297 | # Save the path to the VM's settings file while oVM is valid (needed for
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| 298 | # openMachine() later when oVM is gone).
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| 299 | sSettingsFile = oVM.settingsFilePath
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| 300 |
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| 301 | # modify the VM config, create and attach empty HDD
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| 302 | oSession = self.oTstDrv.openSession(oVM)
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| 303 | if oSession is None:
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| 304 | return False;
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| 305 | sHddPath = os.path.join(self.oTstDrv.sScratchPath, 'TestSnapEmpty.vdi')
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| 306 | sController='SATA Controller';
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| 307 | fRc = oSession.createAndAttachHd(sHddPath, cb=1024*1024, sController=sController, fImmutable=False);
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| 308 | fRc = fRc and oSession.saveSettings();
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| 309 | if not fRc:
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| 310 | return False;
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| 311 |
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| 312 | # take up to 200 snapshots (250 is the snapshot tree depth limit (settings.h:SETTINGS_SNAPSHOT_DEPTH_MAX))
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| 313 | cSnapshots = random.randrange(1, 200);
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| 314 | reporter.log('Taking %d snapshots' % (cSnapshots));
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| 315 | for i in range(1, cSnapshots + 1):
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| 316 | fRc = oSession.takeSnapshot('Snapshot ' + str(i));
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| 317 | if not fRc:
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| 318 | return False;
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| 319 | fRc = oSession.close() and fRc and True;
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| 320 | oSession = None;
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| 321 | reporter.log('API reports %d snapshots (should equal snapshots created = %d)' % (oVM.snapshotCount, cSnapshots));
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| 322 | if oVM.snapshotCount != cSnapshots:
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| 323 | reporter.error('Got %d initial snapshots, expected %d' % (oVM.snapshotCount, cSnapshots));
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| 324 |
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| 325 | # unregister the VM using "DetachAllReturnHardDisksOnly" and confirm all
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| 326 | # hard disks were returned and subsequently closed
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| 327 | fRc = self.unregisterVM(oVM, 'DetachAllReturnHardDisksOnly');
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| 328 | if not fRc:
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| 329 | return False;
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| 330 | oVM = None;
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| 331 |
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| 332 | # If there are no base media belonging to this VM in the global IVirtualBox::hardDisks[]
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| 333 | # array (expected) then there are no leftover child images either.
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| 334 | cNumDisks = self.getNumOfHDsFromHardDisksArray();
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| 335 | reporter.log('After unregister(DetachAllReturnHardDisksOnly): API reports %d base images (should be zero)' % (cNumDisks));
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| 336 | fRc = fRc and cNumDisks == 0
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| 337 | if cNumDisks != 0:
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| 338 | reporter.error('Got %d initial base images, expected zero (0)' % (cNumDisks));
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| 339 |
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| 340 | # re-register to test loading of settings
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| 341 | oVM = self.openAndRegisterMachine(sSettingsFile);
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| 342 | if oVM is None:
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| 343 | return False;
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| 344 |
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| 345 | # Verify that the number of hard disks attached to the VM's only storage
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| 346 | # controller equals the number of disks created above.
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| 347 | reporter.log('After openMachine()+registerMachine(): Number of snapshots of VM = %d '
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| 348 | '(should equal snapshots created = %d)' % (oVM.snapshotCount, cSnapshots));
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| 349 | if oVM.snapshotCount != cSnapshots:
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| 350 | reporter.error('Created %d snapshots but after openMachine()+registerMachine() found %d snapshots' %
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| 351 | (cSnapshots, oVM.snapshotCount));
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| 352 |
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| 353 | fRc = self.unregisterVM(oVM, 'UnregisterOnly');
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| 354 | if not fRc:
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| 355 | return False;
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| 356 | oVM = None;
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| 357 |
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| 358 | # When unregistering a VM with CleanupMode_UnregisterOnly the associated medium's
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| 359 | # objects will be closed when the corresponding Machine object ('oVM') is
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| 360 | # uninitialized. Assigning the 'None' object to 'oVM' will cause Python to delete
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| 361 | # the object when the garbage collector runs however this can take several seconds
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| 362 | # so we invoke the Python garbage collector manually here so we don't have to wait.
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| 363 | try:
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| 364 | gc.collect();
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| 365 | except:
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| 366 | reporter.logXcpt();
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| 367 |
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| 368 | reporter.log('Waiting three seconds for Machine::uninit() to be called to close the attached disks');
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| 369 | # Fudge factor: Machine::uninit() will be invoked when the oVM object is processed
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| 370 | # by the garbage collector above but it may take a few moments to close up to 200
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| 371 | # snapshots.
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| 372 | time.sleep(3);
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| 373 |
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| 374 | # If there are no base media belonging to this VM in the global IVirtualBox::hardDisks[]
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| 375 | # array (expected) then there are no leftover child images either.
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| 376 | cNumDisks = self.getNumOfHDsFromHardDisksArray();
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| 377 | reporter.log('After unregister(UnregisterOnly): API reports %d base images (should be zero)' % (cNumDisks));
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| 378 | if cNumDisks != 0:
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| 379 | reporter.error('Got %d base images after unregistering, expected zero (0)' % (cNumDisks));
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| 380 |
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| 381 | return reporter.testDone()[1] == 0
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| 382 |
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| 383 |
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| 384 | if __name__ == '__main__':
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| 385 | sys.path.append(os.path.dirname(os.path.abspath(__file__)))
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| 386 | from tdApi1 import tdApi1; # pylint: disable=relative-import
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| 387 | sys.exit(tdApi1([SubTstDrvTreeDepth1]).main(sys.argv))
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