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[libvirt] [PATCH] Add a test case that validates save to a block device



There are some unusual problems when saving to a block device,
vs a file. This test case covers problems inherant in using
block devices
---
 scripts/domain/103-blockdev-save-restore.t |   91 ++++++++++++++++++++++++++++
 1 files changed, 91 insertions(+), 0 deletions(-)
 create mode 100644 scripts/domain/103-blockdev-save-restore.t

diff --git a/scripts/domain/103-blockdev-save-restore.t b/scripts/domain/103-blockdev-save-restore.t
new file mode 100644
index 0000000..3cacc2f
--- /dev/null
+++ b/scripts/domain/103-blockdev-save-restore.t
@@ -0,0 +1,91 @@
+# -*- perl -*-
+#
+# Copyright (C) 2009-2010 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
+
+domain/103-blockdev-save-restore.t: Save/restore with a block device
+
+=head1 DESCRIPTION
+
+The test case validates that it is possible to save and restore
+transient domains to/from a block device, instead of a plain file
+
+=cut
+
+use strict;
+use warnings;
+
+use Test::More tests => 9;
+
+use Sys::Virt::TCK;
+use Test::Exception;
+
+my $tck = Sys::Virt::TCK->new();
+my $conn = eval { $tck->setup(); };
+BAIL_OUT "failed to setup test harness: $@" if $@;
+END {
+    $tck->cleanup if $tck;
+    unlink "tck.img" if -f "tck.img";
+}
+
+
+my $xml = $tck->generic_domain("tck")->as_xml;
+
+my $dev = $tck->get_host_block_device();
+
+my $dom;
+diag "Creating a new transient domain";
+ok_domain(sub { $dom = $conn->create_domain($xml) }, "created transient domain object");
+
+SKIP: {
+    skip "no block device available", 7 unless $dev;
+
+    ok(-b $dev, "$dev is a block device");
+
+    diag "Clearing any existing data in block device";
+    open DEV, ">$dev" or die "cannot open $dev: $1";
+    my $zeros = "\0"x1024;
+    for (my $i = 0; $i < 1024 * 10 ; $i++) {
+	print DEV $zeros;
+    }
+    close DEV or die "cannot save $dev: $!";
+
+    eval { $dom->save($dev); };
+    skip "save/restore not implemented", 6 if $@ && err_not_implemented($@);
+
+    ok(!$@, "domain saved");
+    die $@ if $@;
+
+    diag "Verifying it is still a block device, not a file";
+    ok(-b $dev, "$dev is a block device");
+
+    diag "Checking that transient domain has gone away";
+    ok_error(sub { $conn->get_domain_by_name("tck") }, "NO_DOMAIN error raised from missing domain", 42);
+
+    diag "Attempting to restore the guest";
+    lives_ok { $conn->restore_domain($dev) } "domain has been restored";
+
+    ok_domain(sub { $dom = $conn->get_domain_by_name("tck") }, "restored domain is still there", "tck");
+
+    ok(-b $dev, "$dev is a block device");
+}
+diag "Destroying the transient domain";
+$dom->destroy;
+
+diag "Checking that transient domain has gone away";
+ok_error(sub { $conn->get_domain_by_name("tck") }, "NO_DOMAIN error raised from missing domain", 42);
+
+# end
-- 
1.6.5.2


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