mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-10-31 10:48:44 +00:00
28b396fe84
by mocking de/activate vmstate volumes. these were broken by
3a8deb551f, which introduced
activating/deactivating vmstate volumes for KRBD
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
610 lines
20 KiB
Perl
610 lines
20 KiB
Perl
package PVE::QemuServer;
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use strict;
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use warnings;
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use lib qw(..);
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use PVE::Storage;
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use PVE::Storage::Plugin;
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use PVE::QemuServer;
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use PVE::QemuConfig;
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use PVE::Tools;
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use Test::MockModule;
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use Test::More;
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my $nodename;
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my $snapshot_possible;
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my $vol_snapshot_possible = {};
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my $vol_snapshot_delete_possible = {};
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my $vol_snapshot_rollback_possible = {};
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my $vol_snapshot_rollback_enabled = {};
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my $vol_snapshot = {};
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my $vol_snapshot_delete = {};
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my $vol_snapshot_rollback = {};
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my $running;
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my $freeze_possible;
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my $stop_possible;
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my $save_vmstate_works;
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my $vm_mon = {};
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# Mocked methods
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sub mocked_volume_snapshot {
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my ($storecfg, $volid, $snapname) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "volid undefined\n"
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if !defined($volid);
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die "snapname undefined\n"
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if !defined($snapname);
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if ($vol_snapshot_possible->{$volid}) {
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if (defined($vol_snapshot->{$volid})) {
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$vol_snapshot->{$volid} .= ",$snapname";
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} else {
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$vol_snapshot->{$volid} = $snapname;
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}
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return 1;
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} else {
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die "volume snapshot disabled\n";
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}
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}
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sub mocked_volume_snapshot_delete {
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my ($storecfg, $volid, $snapname) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "volid undefined\n"
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if !defined($volid);
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die "snapname undefined\n"
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if !defined($snapname);
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if ($vol_snapshot_delete_possible->{$volid}) {
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if (defined($vol_snapshot_delete->{$volid})) {
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$vol_snapshot_delete->{$volid} .= ",$snapname";
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} else {
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$vol_snapshot_delete->{$volid} = $snapname;
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}
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return 1;
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} else {
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die "volume snapshot delete disabled\n";
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}
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}
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sub mocked_volume_snapshot_rollback {
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my ($storecfg, $volid, $snapname) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "volid undefined\n"
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if !defined($volid);
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die "snapname undefined\n"
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if !defined($snapname);
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if ($vol_snapshot_rollback_enabled->{$volid}) {
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if (defined($vol_snapshot_rollback->{$volid})) {
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$vol_snapshot_rollback->{$volid} .= ",$snapname";
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} else {
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$vol_snapshot_rollback->{$volid} = $snapname;
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}
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return 1;
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} else {
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die "volume snapshot rollback disabled\n";
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}
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}
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sub mocked_volume_rollback_is_possible {
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my ($storecfg, $volid, $snapname) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "volid undefined\n"
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if !defined($volid);
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die "snapname undefined\n"
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if !defined($snapname);
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return $vol_snapshot_rollback_possible->{$volid}
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if ($vol_snapshot_rollback_possible->{$volid});
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die "volume_rollback_is_possible failed\n";
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}
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sub mocked_activate_volumes {
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my ($storecfg, $volumes) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "wrong volume - fake vmstate expected!\n"
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if ((scalar @$volumes != 1) || @$volumes[0] ne "somestorage:state-volume");
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return;
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}
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sub mocked_deactivate_volumes {
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my ($storecfg, $volumes) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "wrong volume - fake vmstate expected!\n"
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if ((scalar @$volumes != 1) || @$volumes[0] ne "somestorage:state-volume");
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return;
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}
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sub mocked_vdisk_free {
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my ($storecfg, $vmstate) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "wrong vdisk - fake vmstate expected!\n"
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if ($vmstate ne "somestorage:state-volume");
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return;
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}
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sub mocked_run_command {
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my ($cmd, %param) = @_;
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my $cmdstring;
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if (my $ref = ref($cmd)) {
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$cmdstring = PVE::Tools::cmd2string($cmd);
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if ($cmdstring =~ m/.*\/qemu-(un)?freeze.*/) {
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return 1 if $freeze_possible;
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die "qemu-[un]freeze disabled\n";
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}
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if ($cmdstring =~ m/.*\/qemu-stop.*--kill.*/) {
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if ($stop_possible) {
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$running = 0;
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return 1;
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} else {
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return 0;
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}
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}
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}
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die "unexpected run_command call: '$cmdstring', aborting\n";
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}
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# Testing methods
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sub test_file {
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my ($exp_fn, $real_fn) = @_;
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my $ret;
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eval {
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$ret = system("diff -u '$exp_fn' '$real_fn'");
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};
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die if $@;
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return !$ret;
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}
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sub testcase_prepare {
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my ($vmid, $snapname, $save_vmstate, $comment, $exp_err) = @_;
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subtest "Preparing snapshot '$snapname' for vm '$vmid'" => sub {
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plan tests => 2;
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$@ = undef;
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eval {
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PVE::QemuConfig->__snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
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};
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is($@, $exp_err, "\$@ correct");
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ok(test_file("snapshot-expected/prepare/qemu-server/$vmid.conf", "snapshot-working/prepare/qemu-server/$vmid.conf"), "config file correct");
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};
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}
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sub testcase_commit {
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my ($vmid, $snapname, $exp_err) = @_;
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subtest "Committing snapshot '$snapname' for vm '$vmid'" => sub {
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plan tests => 2;
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$@ = undef;
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eval {
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PVE::QemuConfig->__snapshot_commit($vmid, $snapname);
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};
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is($@, $exp_err, "\$@ correct");
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ok(test_file("snapshot-expected/commit/qemu-server/$vmid.conf", "snapshot-working/commit/qemu-server/$vmid.conf"), "config file correct");
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}
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}
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sub testcase_create {
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my ($vmid, $snapname, $save_vmstate, $comment, $exp_err, $exp_vol_snap, $exp_vol_snap_delete) = @_;
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subtest "Creating snapshot '$snapname' for vm '$vmid'" => sub {
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plan tests => 4;
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$vol_snapshot = {};
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$vol_snapshot_delete = {};
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$exp_vol_snap = {} if !defined($exp_vol_snap);
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$exp_vol_snap_delete = {} if !defined($exp_vol_snap_delete);
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$@ = undef;
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eval {
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PVE::QemuConfig->snapshot_create($vmid, $snapname, $save_vmstate, $comment);
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};
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is($@, $exp_err, "\$@ correct");
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is_deeply($vol_snapshot, $exp_vol_snap, "created correct volume snapshots");
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is_deeply($vol_snapshot_delete, $exp_vol_snap_delete, "deleted correct volume snapshots");
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ok(test_file("snapshot-expected/create/qemu-server/$vmid.conf", "snapshot-working/create/qemu-server/$vmid.conf"), "config file correct");
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};
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}
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sub testcase_delete {
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my ($vmid, $snapname, $force, $exp_err, $exp_vol_snap_delete) = @_;
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subtest "Deleting snapshot '$snapname' of vm '$vmid'" => sub {
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plan tests => 3;
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$vol_snapshot_delete = {};
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$exp_vol_snap_delete = {} if !defined($exp_vol_snap_delete);
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$@ = undef;
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eval {
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PVE::QemuConfig->snapshot_delete($vmid, $snapname, $force);
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};
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is($@, $exp_err, "\$@ correct");
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is_deeply($vol_snapshot_delete, $exp_vol_snap_delete, "deleted correct volume snapshots");
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ok(test_file("snapshot-expected/delete/qemu-server/$vmid.conf", "snapshot-working/delete/qemu-server/$vmid.conf"), "config file correct");
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};
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}
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sub testcase_rollback {
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my ($vmid, $snapname, $exp_err, $exp_vol_snap_rollback) = @_;
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subtest "Rolling back to snapshot '$snapname' of vm '$vmid'" => sub {
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plan tests => 3;
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$vol_snapshot_rollback = {};
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$running = 1;
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$exp_vol_snap_rollback = {} if !defined($exp_vol_snap_rollback);
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$@ = undef;
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eval {
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PVE::QemuConfig->snapshot_rollback($vmid, $snapname);
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};
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is($@, $exp_err, "\$@ correct");
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is_deeply($vol_snapshot_rollback, $exp_vol_snap_rollback, "rolled back to correct volume snapshots");
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ok(test_file("snapshot-expected/rollback/qemu-server/$vmid.conf", "snapshot-working/rollback/qemu-server/$vmid.conf"), "config file correct");
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};
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}
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# BEGIN mocked PVE::QemuConfig methods
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sub config_file_lock {
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return "snapshot-working/pve-test.lock";
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}
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sub cfs_config_path {
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my ($class, $vmid, $node) = @_;
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$node = $nodename if !$node;
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return "snapshot-working/$node/qemu-server/$vmid.conf";
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}
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sub load_config {
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my ($class, $vmid, $node) = @_;
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my $filename = $class->cfs_config_path($vmid, $node);
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my $raw = PVE::Tools::file_get_contents($filename);
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my $conf = PVE::QemuServer::parse_vm_config($filename, $raw);
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return $conf;
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}
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sub write_config {
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my ($class, $vmid, $conf) = @_;
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my $filename = $class->cfs_config_path($vmid);
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if ($conf->{snapshots}) {
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foreach my $snapname (keys %{$conf->{snapshots}}) {
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$conf->{snapshots}->{$snapname}->{snaptime} = "1234567890"
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if $conf->{snapshots}->{$snapname}->{snaptime};
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}
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}
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my $raw = PVE::QemuServer::write_vm_config($filename, $conf);
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PVE::Tools::file_set_contents($filename, $raw);
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}
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sub has_feature {
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my ($class, $feature, $conf, $storecfg, $snapname, $running, $backup_only) = @_;
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return $snapshot_possible;
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}
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sub __snapshot_save_vmstate {
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my ($class, $vmid, $conf, $snapname, $storecfg) = @_;
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die "save_vmstate failed\n"
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if !$save_vmstate_works;
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my $snap = $conf->{snapshots}->{$snapname};
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$snap->{vmstate} = "somestorage:state-volume";
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$snap->{machine} = "somemachine";
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}
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# END mocked PVE::QemuConfig methods
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# BEGIN redefine PVE::QemuServer methods
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sub check_running {
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return $running;
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}
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sub do_snapshots_with_qemu {
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return 0;
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}
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sub vm_qmp_command {
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my ($vmid, $cmd, $nocheck) = @_;
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my $exec = $cmd->{execute};
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if ($exec eq "delete-drive-snapshot") {
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return;
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}
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if ($exec eq "guest-ping") {
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die "guest-ping disabled\n"
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if !$vm_mon->{guest_ping};
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return;
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}
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if ($exec eq "guest-fsfreeze-freeze" || $exec eq "guest-fsfreeze-thaw") {
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die "freeze disabled\n"
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if !$freeze_possible;
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return;
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}
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if ($exec eq "savevm-start") {
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die "savevm-start disabled\n"
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if !$vm_mon->{savevm_start};
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return;
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}
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if ($exec eq "savevm-end") {
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die "savevm-end disabled\n"
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if !$vm_mon->{savevm_end};
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return;
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}
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if ($exec eq "query-savevm") {
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return { "status" => "completed" };
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}
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die "unexpected vm_qmp_command!\n";
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}
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sub vm_start {
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my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine) = @_;
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die "Storage config not mocked! aborting\n"
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if defined($storecfg);
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die "statefile and forcemachine must be both defined or undefined! aborting\n"
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if defined($statefile) xor defined($forcemachine);
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return;
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}
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sub vm_stop {
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my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
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$running = 0
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if $stop_possible;
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return;
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}
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# END redefine PVE::QemuServer methods
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PVE::Tools::run_command("rm -rf snapshot-working");
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PVE::Tools::run_command("cp -a snapshot-input snapshot-working");
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my $qemu_config_module = new Test::MockModule('PVE::QemuConfig');
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$qemu_config_module->mock('config_file_lock', \&config_file_lock);
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$qemu_config_module->mock('cfs_config_path', \&cfs_config_path);
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$qemu_config_module->mock('load_config', \&load_config);
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$qemu_config_module->mock('write_config', \&write_config);
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$qemu_config_module->mock('has_feature', \&has_feature);
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$qemu_config_module->mock('__snapshot_save_vmstate', \&__snapshot_save_vmstate);
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$running = 1;
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$freeze_possible = 1;
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$save_vmstate_works = 1;
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printf("\n");
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printf("Running prepare tests\n");
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printf("\n");
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$nodename = "prepare";
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printf("\n");
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printf("Setting has_feature to return true\n");
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printf("\n");
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$snapshot_possible = 1;
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printf("Successful snapshot_prepare with no existing snapshots\n");
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testcase_prepare("101", "test", 0, "test comment", '');
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printf("Successful snapshot_prepare with no existing snapshots, including vmstate\n");
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testcase_prepare("102", "test", 1, "test comment", '');
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printf("Successful snapshot_prepare with one existing snapshot\n");
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testcase_prepare("103", "test2", 0, "test comment", "");
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printf("Successful snapshot_prepare with one existing snapshot, including vmstate\n");
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testcase_prepare("104", "test2", 1, "test comment", "");
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printf("Expected error for snapshot_prepare on locked container\n");
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testcase_prepare("200", "test", 0, "test comment", "VM is locked (snapshot)\n");
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printf("Expected error for snapshot_prepare with duplicate snapshot name\n");
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testcase_prepare("201", "test", 0, "test comment", "snapshot name 'test' already used\n");
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$save_vmstate_works = 0;
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printf("Expected error for snapshot_prepare with failing save_vmstate\n");
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testcase_prepare("202", "test", 1, "test comment", "save_vmstate failed\n");
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$save_vmstate_works = 1;
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printf("\n");
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printf("Setting has_feature to return false\n");
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printf("\n");
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$snapshot_possible = 0;
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printf("Expected error for snapshot_prepare if snapshots not possible\n");
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testcase_prepare("300", "test", 0, "test comment", "snapshot feature is not available\n");
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printf("\n");
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printf("Running commit tests\n");
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printf("\n");
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$nodename = "commit";
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printf("\n");
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printf("Setting has_feature to return true\n");
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printf("\n");
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$snapshot_possible = 1;
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printf("Successful snapshot_commit with one prepared snapshot\n");
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testcase_commit("101", "test", "");
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printf("Successful snapshot_commit with one committed and one prepared snapshot\n");
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testcase_commit("102", "test2", "");
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printf("Expected error for snapshot_commit with no snapshot lock\n");
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testcase_commit("201", "test", "missing snapshot lock\n");
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printf("Expected error for snapshot_commit with invalid snapshot name\n");
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testcase_commit("202", "test", "snapshot 'test' does not exist\n");
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printf("Expected error for snapshot_commit with invalid snapshot state\n");
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testcase_commit("203", "test", "wrong snapshot state\n");
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$vol_snapshot_possible->{"local:snapshotable-disk-1"} = 1;
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$vol_snapshot_possible->{"local:snapshotable-disk-2"} = 1;
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$vol_snapshot_possible->{"local:snapshotable-disk-3"} = 1;
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$vol_snapshot_delete_possible->{"local:snapshotable-disk-1"} = 1;
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$vol_snapshot_delete_possible->{"local:snapshotable-disk-3"} = 1;
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$vol_snapshot_rollback_enabled->{"local:snapshotable-disk-1"} = 1;
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$vol_snapshot_rollback_enabled->{"local:snapshotable-disk-2"} = 1;
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$vol_snapshot_rollback_enabled->{"local:snapshotable-disk-3"} = 1;
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$vol_snapshot_rollback_possible->{"local:snapshotable-disk-1"} = 1;
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$vol_snapshot_rollback_possible->{"local:snapshotable-disk-2"} = 1;
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$vol_snapshot_rollback_possible->{"local:snapshotable-disk-3"} = 1;
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$vol_snapshot_rollback_possible->{"local:snapshotable-disk-4"} = 1;
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$vm_mon->{guest_ping} = 1;
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$vm_mon->{savevm_start} = 1;
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$vm_mon->{savevm_end} = 1;
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# possible, but fails
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$vol_snapshot_rollback_possible->{"local:snapshotable-disk-4"} = 1;
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printf("\n");
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printf("Setting up Mocking for PVE::Storage\n");
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my $storage_module = new Test::MockModule('PVE::Storage');
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$storage_module->mock('config', sub { return undef; });
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$storage_module->mock('path', sub { return "/some/store/statefile/path"; });
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$storage_module->mock('activate_volumes', \&mocked_activate_volumes);
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$storage_module->mock('deactivate_volumes', \&mocked_deactivate_volumes);
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$storage_module->mock('vdisk_free', \&mocked_vdisk_free);
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$storage_module->mock('volume_snapshot', \&mocked_volume_snapshot);
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$storage_module->mock('volume_snapshot_delete', \&mocked_volume_snapshot_delete);
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$storage_module->mock('volume_snapshot_rollback', \&mocked_volume_snapshot_rollback);
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$storage_module->mock('volume_rollback_is_possible', \&mocked_volume_rollback_is_possible);
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|
printf("\tconfig(), volume_snapshot(), volume_snapshot_delete(), volume_snapshot_rollback() and volume_rollback_is_possible() mocked\n");
|
|
|
|
#printf("\n");
|
|
#printf("Setting up Mocking for PVE::Tools\n");
|
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#my $tools_module = new Test::MockModule('PVE::Tools');
|
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#$tools_module->mock('run_command' => \&mocked_run_command);
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#printf("\trun_command() mocked\n");
|
|
#
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$nodename = "create";
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|
printf("\n");
|
|
printf("Running create tests\n");
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|
printf("\n");
|
|
|
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printf("Successful snapshot_create with no existing snapshots\n");
|
|
testcase_create("101", "test", 0, "test comment", "", { "local:snapshotable-disk-1" => "test" });
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|
|
|
printf("Successful snapshot_create with no existing snapshots, including vmstate\n");
|
|
testcase_create("102", "test", 1, "test comment", "", { "local:snapshotable-disk-1" => "test" });
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|
|
|
printf("Successful snapshot_create with one existing snapshots\n");
|
|
testcase_create("103", "test2", 0, "test comment", "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_create with one existing snapshots, including vmstate\n");
|
|
testcase_create("104", "test2", 1, "test comment", "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_create with multiple mps\n");
|
|
testcase_create("105", "test", 0, "test comment", "", { "local:snapshotable-disk-1" => "test", "local:snapshotable-disk-2" => "test", "local:snapshotable-disk-3" => "test" });
|
|
|
|
$freeze_possible = 0;
|
|
printf("Successful snapshot_create with no existing snapshots and broken freeze\n");
|
|
testcase_create("106", "test", 1, "test comment", "", { "local:snapshotable-disk-1" => "test" });
|
|
$freeze_possible = 1;
|
|
|
|
printf("Expected error for snapshot_create when volume snapshot is not possible\n");
|
|
testcase_create("201", "test", 0, "test comment", "volume snapshot disabled\n\n");
|
|
|
|
printf("Expected error for snapshot_create when volume snapshot is not possible for one drive\n");
|
|
testcase_create("202", "test", 0, "test comment", "volume snapshot disabled\n\n", { "local:snapshotable-disk-1" => "test" }, { "local:snapshotable-disk-1" => "test" });
|
|
|
|
$vm_mon->{savevm_start} = 0;
|
|
printf("Expected error for snapshot_create when Qemu mon command 'savevm-start' fails\n");
|
|
testcase_create("203", "test", 0, "test comment", "savevm-start disabled\n\n");
|
|
$vm_mon->{savevm_start} = 1;
|
|
|
|
|
|
$nodename = "delete";
|
|
printf("\n");
|
|
printf("Running delete tests\n");
|
|
printf("\n");
|
|
|
|
printf("Successful snapshot_delete of only existing snapshot\n");
|
|
testcase_delete("101", "test", 0, "", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Successful snapshot_delete of leaf snapshot\n");
|
|
testcase_delete("102", "test2", 0, "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_delete of root snapshot\n");
|
|
testcase_delete("103", "test", 0, "", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Successful snapshot_delete of intermediate snapshot\n");
|
|
testcase_delete("104", "test2", 0, "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_delete with broken volume_snapshot_delete and force=1\n");
|
|
testcase_delete("105", "test", 1, "");
|
|
|
|
printf("Successful snapshot_delete with mp broken volume_snapshot_delete and force=1\n");
|
|
testcase_delete("106", "test", 1, "", { "local:snapshotable-disk-1" => "test", "local:snapshotable-disk-3" => "test" });
|
|
|
|
printf("Expected error when snapshot_delete fails with broken volume_snapshot_delete and force=0\n");
|
|
testcase_delete("201", "test", 0, "volume snapshot delete disabled\n");
|
|
|
|
printf("Expected error when snapshot_delete fails with broken mp volume_snapshot_delete and force=0\n");
|
|
testcase_delete("202", "test", 0, "volume snapshot delete disabled\n", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Expected error for snapshot_delete with locked config\n");
|
|
testcase_delete("203", "test", 0, "VM is locked (backup)\n");
|
|
|
|
$nodename = "rollback";
|
|
printf("\n");
|
|
printf("Running rollback tests\n");
|
|
printf("\n");
|
|
|
|
$stop_possible = 1;
|
|
|
|
printf("Successful snapshot_rollback to only existing snapshot\n");
|
|
testcase_rollback("101", "test", "", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Successful snapshot_rollback to leaf snapshot\n");
|
|
testcase_rollback("102", "test2", "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_rollback to root snapshot\n");
|
|
testcase_rollback("103", "test", "", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Successful snapshot_rollback to intermediate snapshot\n");
|
|
testcase_rollback("104", "test2", "", { "local:snapshotable-disk-1" => "test2" });
|
|
|
|
printf("Successful snapshot_rollback with multiple mp\n");
|
|
testcase_rollback("105", "test", "", { "local:snapshotable-disk-1" => "test", "local:snapshotable-disk-2" => "test", "local:snapshotable-disk-3" => "test" });
|
|
|
|
printf("Successful snapshot_rollback to only existing snapshot, with saved vmstate and machine config\n");
|
|
testcase_rollback("106", "test", "", { "local:snapshotable-disk-1" => "test" });
|
|
|
|
printf("Expected error for snapshot_rollback with non-existing snapshot\n");
|
|
testcase_rollback("201", "test2", "snapshot 'test2' does not exist\n");
|
|
|
|
printf("Expected error for snapshot_rollback if volume rollback not possible\n");
|
|
testcase_rollback("202", "test", "volume_rollback_is_possible failed\n");
|
|
|
|
printf("Expected error for snapshot_rollback with incomplete snapshot\n");
|
|
testcase_rollback("203", "test", "unable to rollback to incomplete snapshot (snapstate = delete)\n");
|
|
|
|
printf("Expected error for snapshot_rollback with lock\n");
|
|
testcase_rollback("204", "test", "VM is locked (backup)\n");
|
|
|
|
$stop_possible = 0;
|
|
|
|
printf("Expected error for snapshot_rollback with unkillable container\n");
|
|
testcase_rollback("205", "test", "unable to rollback vm 205: vm is running\n");
|
|
|
|
$stop_possible = 1;
|
|
|
|
printf("Expected error for snapshot_rollback with mp rollback_is_possible failure\n");
|
|
testcase_rollback("206", "test", "volume_rollback_is_possible failed\n");
|
|
|
|
printf("Expected error for snapshot_rollback with mp rollback failure (results in inconsistent state)\n");
|
|
testcase_rollback("207", "test", "volume snapshot rollback disabled\n", { "local:snapshotable-disk-1" => "test", "local:snapshotable-disk-2" => "test" });
|
|
|
|
done_testing();
|