# Test if master cuts binlog at InnoDB crash's recovery,
# if the transaction had been written to binlog but not committed into InnoDB
# We need InnoDB in the master, and a debug build in the master.

# There are 6 tests, in fact 3 pairs:
# 1st pair: 
# rpl_crash_binlog_innodb_1a: crash when InnoDB in autocommit mode
# rpl_crash_binlog_innodb_1b: test of recovery after the crash of test 1a
# 2nd pair: 
# rpl_crash_binlog_innodb_2a: crash when InnoDB in non autocommit mode
# rpl_crash_binlog_innodb_2b: test of recovery after the crash of test 1a
# 3rd pair: 
# rpl_crash_binlog_innodb_3a: crash when InnoDB in autocommit mode, at
# very first transactional statement since master's startup (a purely
# academic case but which will be tested a lot)
# rpl_crash_binlog_innodb_3b: test of recovery after the crash of test 3a

# The *b tests should always be run just after their 1a; don't run *b
# alone it won't work properly.

# This test is only for autocommit mode.

source include/master-slave.inc ;
source include/have_debug.inc ;
source include/have_innodb.inc ;
require_os unix ;

flush logs; # this will help us be sure it's the same log in the next test

# One problem: we need InnoDB to know of the last good position, so it 
# must have committed at least one transaction and in the binlog before the crash.
# NOTE: the above should become false quite soon

set autocommit=1;
set sql_log_bin=0;
create table t1 (n int) engine=innodb;
set sql_log_bin=1;
sync_slave_with_master;

# We use MyISAM on slave so that any spurious statement received from the
# master has a visible effect.
create table t1 (n int) engine=myisam;
connection master;
insert into t1 values (3);
# The reported size here should be exactly the same as the one we measure
# at the end of rpl_crash_binlog_innodb_1b.test
show master status;

# Master will crash in this (it crashes on 3rd binlog write, counting
# the DROP IF EXISTS in master-slave.inc):
error 2013;
send insert into t1 values (4);
sleep 4; # enough time to die
# No 'reap' as it may hang as master died hard.
# This kill speeds up:
system sh misc/kill_master.sh ;

# Check that slave did not receive the spurious INSERT statement
connection slave;
select * from t1;

# Check that the spurious statement is in the master's binlog
# LOAD_FILE() needs a file readable by all
system chmod ugo+r $MYSQL_TEST_DIR/var/log/master-bin.000002 ;
--replace_result $MYSQL_TEST_DIR MYSQL_TEST_DIR
eval set @a=load_file("$MYSQL_TEST_DIR/var/log/master-bin.000002");
select length(@a);
select @a like "%values (4)%";

# Now we will run rpl_crash_binlog_innodb_1b.test to test
# if the spurious statement gets truncated at master's restart.