# $Id: tstVDCopy.vd 38204 2011-07-27 16:14:59Z vboxsync $
#
# Storage: Testcase for VDCopy with snapshots and optimizations.
#

#
# Copyright (C) 2011 Oracle Corporation
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software
# Foundation, in version 2 as it comes in the "COPYING" file of the
# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
#

# Init I/O RNG for generating random data for writes
iorngcreate size=10M mode=manual seed=1234567890

# Create source disk and fill data
print msg=Creating_Source_Disk
    createdisk name=source verify=no
    create disk=source mode=base name=source_base.vdi type=dynamic backend=VDI size=512M
    io disk=source async=no mode=rnd blocksize=64k off=0-512M size=256M writes=100

# Create 1st snapshot
print msg=Creating_First_Diff
    create disk=source mode=diff name=source_diff1.vdi type=dynamic backend=VDI size=512M
    io disk=source async=no mode=rnd blocksize=64k off=0M-512M size=256M writes=50

# Create 2nd snapshot
print msg=Creating_Second_Diff
    create disk=source mode=diff name=source_diff2.vdi type=dynamic backend=VDI size=512M
    io disk=source async=no mode=rnd blocksize=64k off=0M-512M size=128M writes=25

# Create destination disk
print msg=Creating_Destination_Disk
    createdisk name=dest verify=no

# Copy base image
print msg=Copying_Base_Image
    copy diskfrom=source diskto=dest imagefrom=0 backend=VDI filename=dest_base.vdi

print msg=Copying_First_Diff_optimized
    copy diskfrom=source diskto=dest imagefrom=1 backend=VDI filename=dest_diff1.vdi fromsame=0 tosame=0

print msg=Copying_Second_Diff_optimized
    copy diskfrom=source diskto=dest imagefrom=2 backend=VDI filename=dest_diff2.vdi fromsame=1 tosame=1

print msg=Comparing_Disks
    comparedisks disk1=source disk2=dest

# Cleanup
print msg=Cleaning_up
    close disk=dest mode=single delete=yes
    close disk=dest mode=single delete=yes
    close disk=dest mode=single delete=yes

# Test unoptimized copying now.
print msg=Copy_Source_into_base_image
    copy diskfrom=source diskto=dest imagefrom=2 backend=VDI filename=dest_base.vdi
print msg=Comparing_Disks
    comparedisks disk1=source disk2=dest

print msg=Final_Cleanup
    close disk=source mode=single delete=yes
    close disk=source mode=single delete=yes
    close disk=source mode=single delete=yes
    close disk=dest mode=single delete=yes
    destroydisk name=source
    destroydisk name=dest

iorngdestroy