RESET MASTER;
CREATE TABLE t1 (a int);
### assertion: index file contains regular entries
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000001

### assertion: show original binlogs
show binary logs;
Log_name	File_size
master-bin.000001	#
### assertion: binlog contents from regular entries
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Query	#	#	use `test`; CREATE TABLE t1 (a int)
FLUSH LOGS;
### assertion: index file contains renamed binlog and the new one
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin-b34582.000001
master-bin.000002

### assertion: original binlog content still exists, despite we
###            renamed and changed the index file 
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin-b34582.000001	#	Query	#	#	use `test`; CREATE TABLE t1 (a int)
### assertion: user changed binlog index shows correct entries
show binary logs;
Log_name	File_size
master-bin-b34582.000001	#
master-bin.000002	#
DROP TABLE t1;
### assertion: purging binlogs up to binlog created after instrumenting index file should work
PURGE BINARY LOGS TO 'master-bin.000002';
### assertion: show binary logs should only contain latest binlog
show binary logs;
Log_name	File_size
master-bin.000002	#
### assertion: assert that binlog files were indeed purged (using file_exists calls)
### assertion: assert that not purged binlog file exists
### assertion: show index file contents and these should match show binary logs issued above
SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
SELECT @index;
@index
master-bin.000002

RESET MASTER;