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# -*- perl -*-
#
# Copyright (C) 2009 Red Hat, Inc.
# Copyright (C) 2009 Daniel P. Berrange
#
# This program is free software; You can redistribute it and/or modify
# it under the GNU General Public License as published by the Free
# Software Foundation; either version 2, or (at your option) any
# later version
#
# The file "LICENSE" distributed along with this file provides full
# details of the terms and conditions
#
=pod
=head1 NAME
storage/200-clone-vol-fs.t - Clone a volume with a directory pool
=head1 DESCRIPTION
The test case validates that it is possible to clone volumes
within a directory pool. It starts by creating a raw volume
with a magic pattern. It then clones this to another format,
and then clones back to raw. The source and destinations are
checksummed and validated
=cut
use strict;
use warnings;
use Test::More tests => 61;
use Sys::Virt::TCK;
use Test::Exception;
use File::stat;
use Digest;
my $tck = Sys::Virt::TCK->new();
my $conn = eval { $tck->setup(); };
BAIL_OUT "failed to setup test harness: $@" if $@;
END {
$tck->cleanup if $tck;
}
my $xml = $tck->generic_pool("dir")->as_xml;
diag "Defining transient storage pool";
my $pool;
ok_pool(sub { $pool = $conn->define_storage_pool($xml) }, "define transient storage pool");
lives_ok(sub { $pool->build(0) }, "built storage pool");
lives_ok(sub { $pool->create }, "started storage pool");
diag "Preparing initial source volume with some special data";
my $volsrcxml = $tck->generic_volume("tcksrc", "raw", 1024*1024*50)->as_xml;
my ($vol, $path, $st);
ok_volume(sub { $vol = $pool->create_volume($volsrcxml) }, "create source raw volume");
$path = xpath($vol, "string(/volume/target/path)");
open FILE, ">$path"
or die "cannot create $path: $!";
for (my $i = 0 ; $i < 50 ; $i++) {
for (my $j = 0 ; $j < 1024 ; $j++) {
# 64 bytes
my $str = join('', ('a'..'z', 'A'..'Z', '0'..'9', '.',"\n"));
# 1 kb
my $data = join('', $str, $str, $str, $str,
$str, $str, $str, $str,
$str, $str, $str, $str,
$str, $str, $str, $str);
print FILE $data;
# Hack for VPC, add an extra 4k of data to round
# out 50 MB size upto a size that is mappable to
# VPC's CHS geometry without needing rounding
if ($i == 0 && $j == 0) {
print FILE $data;
print FILE $data;
print FILE $data;
print FILE $data;
}
}
}
close FILE or die "cannot save $path: $!";
$st = stat($path);
ok($st, "path $path exists");
is($st->size, ((1024*1024*50)+4096), "size is 50M");
my $srcdigest = &digest($path);
diag "Now testing cloning of various formats";
my @formats = qw(raw cow qcow qcow2 vmdk vpc);
foreach my $format (@formats) {
diag "Cloning source volume to $format format";
my $volclonexml = $tck->generic_volume("tck$format", $format, ((1024*1024*50)+4096))->as_xml;
my $clone;
ok_volume(sub { $clone = $pool->clone_volume($volclonexml, $vol) }, "clone to $format volume");
$path = xpath($clone, "string(/volume/target/path)");
$st = stat($path);
ok($st, "path $path exists");
ok($st->size >= ((1024*1024*50)+4096), "size is at least 50M");
diag "Cloning cloned volume back to raw format";
my $voldstxml = $tck->generic_volume("tckdst", "raw", ((1024*1024*50)+4096))->as_xml;
my $result;
ok_volume(sub { $result = $pool->clone_volume($voldstxml, $clone) }, "clone back to raw volume");
$path = xpath($result, "string(/volume/target/path)");
$st = stat($path);
ok($st, "path $path exists");
is($st->size, ((1024*1024*50)+4096), "size is 50M");
diag "Comparing data between source & result volume";
my $dstdigest = &digest($path);
is($srcdigest, $dstdigest, "digests match");
lives_ok(sub { $clone->delete(0) }, "deleted clone volume");
lives_ok(sub { $result->delete(0) }, "deleted result volume");
}
lives_ok(sub { $vol->delete(0) }, "deleted source vol");
sub digest {
my $file = shift;
open FILE, "<$file" or die "cannot open $file: $!";
my $digest = Digest->new("MD5");
$digest->addfile(\*FILE);
close FILE;
return $digest->hexdigest;
}
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