# This test just backs up and restores empty database
# Innodb system tablespace is specified with absolute path in  the .opt file
CREATE TABLE t(i INT) ENGINE INNODB;
INSERT INTO t VALUES(1);

let INNODB_PAGE_SIZE=`select @@innodb_page_size`;
let MYSQLD_DATADIR= `SELECT @@datadir`;
--source include/shutdown_mysqld.inc
perl;
my $file= "$ENV{MYSQLD_DATADIR}/ibdata_second";
open(FILE, "+<", $file) or die "Unable to open $file\n";
binmode FILE;
my $ps= $ENV{INNODB_PAGE_SIZE};
my $page;
my $pos = $ps * 0;
sysseek(FILE, $pos, 0) || die "Unable to seek $file\n";
die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
substr($page,26,8) = pack("NN", 1, 1);
sysseek(FILE, $pos, 0) || die "Unable to rewind $file\n";
syswrite(FILE, $page, $ps)==$ps || die "Unable to write $file\n";
close(FILE) || die "Unable to close $file\n";
EOF

--source include/start_mysqld.inc

echo # xtrabackup backup;

let $targetdir=$MYSQLTEST_VARDIR/tmp/backup;
let $_innodb_data_file_path=`select @@innodb_data_file_path`;
let $_innodb_data_home_dir=`select @@innodb_data_home_dir`;

--disable_result_log
exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir=$targetdir;
--enable_result_log
exec $XTRABACKUP  --prepare --target-dir=$targetdir;

--source include/shutdown_mysqld.inc
echo # remove datadir;
rmdir $MYSQLD_DATADIR;
#remove out-of-datadir ibdata1
remove_file $MYSQLTEST_VARDIR/tmp/absolute_path_ibdata1;
echo # xtrabackup copy back;
exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --copy-back --datadir=$MYSQLD_DATADIR --target-dir=$targetdir "--innodb_data_file_path=$_innodb_data_file_path" --innodb_data_home_dir=$_innodb_data_home_dir;
echo # restart server;
--source include/start_mysqld.inc
--enable_result_log

SELECT * from t;
DROP TABLE t;
rmdir $targetdir;