# ==== Purpose ====
#
# Test verifies that reading binary log by using "SHOW BINLOG EVENTS" command
# from various random positions doesn't lead to crash. It should exit
# gracefully with appropriate error.
#
# ==== References ====
#
# MDEV-18046:Assortment of crashes, assertion failures and ASAN errors in mysql_show_binlog_events

--source include/have_log_bin.inc
--source include/have_innodb.inc

RESET MASTER;

call mtr.add_suppression("Error in Log_event::read_log_event*");
call mtr.add_suppression("Replication event checksum verification failed while reading from a log file*");

DROP TABLE /*! IF EXISTS*/ t1;
CREATE TABLE `t1` (
`col_int` int,
pk integer auto_increment,
`col_char_12_key` char(12),
`col_int_key` int,
`col_char_12` char(12),
primary key (pk),
key (`col_char_12_key` ),
key (`col_int_key` )) ENGINE=InnoDB;

INSERT /*! IGNORE */ INTO t1 VALUES  (183173120, NULL, 'abcd', 1, 'efghijk'),  (1, NULL, 'lmno', 2, 'p');

--disable_warnings
ALTER TABLE `t1` ENABLE KEYS;
--enable_warnings

--let $max_pos= query_get_value(SHOW MASTER STATUS,Position,1)
--let $pos= 1
while ($pos <= $max_pos)
{
  --disable_query_log
  --disable_result_log
  --error 0,1220
  eval SHOW BINLOG EVENTS FROM $pos;
  --inc $pos
  --enable_result_log
  --enable_query_log
}
DROP TABLE t1;