--source include/have_innodb.inc
--source include/master-slave.inc

--echo # Initialize
--connection slave
ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;

--echo # Setup data
--connection master
CREATE TABLE t1 (a int PRIMARY KEY, b INT) ENGINE=InnoDB;
--source include/save_master_gtid.inc

--connection slave
--source include/sync_with_master_gtid.inc

# The following test proves fixes to
#   MDEV-15393 gtid_slave_pos duplicate key errors after mysqldump restore
#
--echo # 1. run some replication load that adds records to gtid_slave_pos table
--echo # 2. stop slave, remove loaded data (it will be replicated), delete from
--echo #    gtid_slave_pos as the table is going to be restored
--echo # 3. take dump from slave (master has an empty gtid_slave_pos)
--echo #    with --gtid and for the default value of both
--echo #    --dump-slave and --master-data
--echo # and in loop for the two options do:
--echo #   4. reset the slave state to install some initial state
--echo #   5. restart slave server, restore the dump
--echo #   6. check the final state which must be equal to the dump's one
--echo #   7. start replication to see no error                => Q.E.D.
--echo #      unless the test runs on a buggy version in which case set $FIXED to zero.

# set to ZERO when run with mysqldump of buggy version
--let $FIXED= 1

--echo # 1.
--source include/stop_slave.inc
delete from mysql.gtid_slave_pos;

--connection master
--let $trx_number = 5
--let $i = $trx_number
while ($i)
{
  eval insert into t1 set a = $i;
  --dec $i
}
--source include/save_master_gtid.inc

--connection slave
# enforce deterministic SELECT * from mysql.gtid_slave_pos
--let $old_gtid_cleanup_batch_size = `select @@GLOBAL.gtid_cleanup_batch_size`
# the number of generated transactions on master must not exceed this value:
--let $val= 2147483647
--evalp SET @@global.gtid_cleanup_batch_size = $val

# due to MDEV-19801 on 10+.10+
CHANGE MASTER TO master_use_gtid= no;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
# Prior tests in a mtr batch could leave the min value of sub_id column with
# arbitrary value. Therefore before dumping let's
# adjust mysql.gtid_slave_pos to have sub_id growing deterministically.
# The value of 2 is choosen.
--disable_query_log
  set statement sql_log_bin = 0 for update mysql.gtid_slave_pos set sub_id = sub_id - (select min(sub_id) from mysql.gtid_slave_pos) + 2;
--enable_query_log
select * from mysql.gtid_slave_pos;
select @@global.gtid_slave_pos as "after initial slave got in sync";

--echo # 2.
--source include/stop_slave.inc

--echo # 3. A
# Two dumps prepared to be restored in the following loop
--exec $MYSQL_DUMP_SLAVE --no-autocommit=0 --dump-slave  --gtid mysql gtid_slave_pos > $MYSQLTEST_VARDIR/tmp/dump_2.sql
--source include/stop_slave.inc

--exec $MYSQL_DUMP_SLAVE --no-autocommit=0 --master-data  --gtid mysql gtid_slave_pos > $MYSQLTEST_VARDIR/tmp/dump_1.sql

--let $i=2
while ($i)
{
  --disable_warnings
  --source include/stop_slave.inc
  --enable_warnings
  --echo # 4.
  set statement sql_log_bin=0 for delete from mysql.gtid_slave_pos;
  # setup a new gtid/sub_id state as complication for future backup restore.
  # After the restore the new state must be a union of the backup state
  # and this one.
  --eval insert into mysql.gtid_slave_pos values (99 + $i, 1, 1, 1)

  --echo # 5.
  --let $rpl_server_number= 2
  --source include/rpl_restart_server.inc
  --evalp SET @@global.gtid_cleanup_batch_size = $val
  select * from mysql.gtid_slave_pos;
  select @@global.gtid_slave_pos as "before dump restore";
  --let $dump=dump_$i.sql
  --exec $MYSQL_SLAVE mysql -e "source $MYSQLTEST_VARDIR/tmp/$dump"

  --echo # 6.
  select * from mysql.gtid_slave_pos;
  select @@global.gtid_slave_pos as "after dump restore";

  --echo # 7.
  reset slave;
  select @@global.gtid_slave_pos;
  change master to master_use_gtid=no;

  --connection master
  eval insert into t1 select 1+max(a),$i from t1;
  --source include/save_master_gtid.inc

  --connection slave
  if ($FIXED)
  {
    --source include/start_slave.inc
    --source include/sync_with_master_gtid.inc
  }
  if (!$FIXED)
  {
    start slave;
    --let $slave_sql_errno= 1942
    --source include/wait_for_slave_sql_error.inc

    --die
  }
  select * from mysql.gtid_slave_pos;
  select @@global.gtid_slave_pos as "after slave got in sync";

  --dec $i
}
--echo #
--echo # Cleanup
--echo #
--connection master
DROP TABLE t1;
--source include/save_master_gtid.inc

--connection slave
--evalp SET @@global.gtid_cleanup_batch_size= $old_gtid_cleanup_batch_size
--remove_files_wildcard $MYSQLTEST_VARDIR/tmp dump_*.sql
--source include/sync_with_master_gtid.inc

--source include/rpl_end.inc