# === Purpose ===
#
# Check errors returned by MYSQL_BIN_LOG::open_binlog
#
# ==== Requirements ====
#
# R1. When the binary log file is opened during recovery,
# the following error conditions and boundary conditions should be handled:
#  * If the file is truncated just after the magic header,
#    it should report an error and start ha_recover().
#  * If the file is missing a format_description_log_event,
#    recovery should report an error and start ha_recover().
#  * If the Format_description_log_event exists but
#    does not have LOG_EVENT_BINLOG_IN_USE_F set,
#    it should report a warning and start ha_recover().
#
# === Implementation ====
#
# 1. Start server so that binary log is created
# 2. Prepare binary log with header only
# 3. Check error ER_READ_LOG_EVENT_FAILED is reported 
#      "Error in Log_event::read_log_event()"
# 4. Perpare binary log without Format_desc event
# 5. Check error ER_BINLOG_CRASH_RECOVERY_MALFORMED_LOG is reported 
#      "Found invalid event sequence while recovering from binary log file."
# 6. Set debug points binlog_crash_between_close_and_open so that server is crashed
#    after binary log LOG_EVENT_BINLOG_IN_USE_F is set to false
# 7. Check error ER_BINLOG_CANT_OPEN_CRASHED_BINLOG is reported 
#      "Failed to open the crashed binlog file when source server is recovering it."
#
# === References ===
# 
# BUG #33658850 Binlog recovery not reporting all error states
#
--source include/have_debug.inc
--source include/have_binlog_format_mixed.inc

RESET MASTER;

--let $MYSQLD_DATADIR = `SELECT @@DATADIR`
--let $binlog = query_get_value(SHOW MASTER STATUS, File, 1)
--let $event_following_format_desc_start = query_get_value(SHOW BINLOG EVENTS IN '$binlog', Pos, 2)
--let $event_following_format_desc_stop = query_get_value(SHOW BINLOG EVENTS IN '$binlog', End_log_pos, 2)

--file_exists $MYSQLD_DATADIR/$binlog

#
# Use save_error_log_position.inc before the first call to assert_error_log.inc.
# The error log may contain errors from earlier test runs.
#
--source include/save_error_log_position.inc

#
# Shutdown server
#
--source include/shutdown_mysqld.inc

#
# Prepare binary log with header only
#
--echo Prepare binary log with header only

--let $in_filename = $MYSQLD_DATADIR/$binlog
--let $out_filename = $MYSQLD_DATADIR/$binlog.header
--let $file_start_pos = 0
--let $file_stop_pos = 4
--source include/copy_file_segment.inc

#
# Prepare binary log with truncated Format_desc event
#
--echo Prepare binary log without Format_desc event

--let $in_filename = $MYSQLD_DATADIR/$binlog
--let $out_filename = $MYSQLD_DATADIR/$binlog.truncformat
--let $file_start_pos = 0
--let $file_stop_pos = $event_following_format_desc_start
--dec $file_stop_pos
--source include/copy_file_segment.inc

#
# Prepare binary log without Format_desc event
#
--echo Prepare binary log without Format_desc event

--let $in_filename = $MYSQLD_DATADIR/$binlog
--let $out_filename = $MYSQLD_DATADIR/$binlog.formatless
--let $file_start_pos = 0
--let $file_stop_pos = 4
--source include/copy_file_segment.inc
--let $file_start_pos = $event_following_format_desc_start
--let $file_stop_pos = $event_following_format_desc_stop
--source include/copy_file_segment.inc

#
# Backup binlog file
#
--echo Backup binlog file

--copy_file $MYSQLD_DATADIR/$binlog $MYSQLD_DATADIR/$binlog.backup

--echo
--echo # 1. Test Error in Log_event::read_log_event() #
--echo ################################################

#
# Swap header only event
#
--remove_file $MYSQLD_DATADIR/$binlog
--copy_file $MYSQLD_DATADIR/$binlog.header $MYSQLD_DATADIR/$binlog

#
# Start server
#
--source include/start_mysqld.inc

RESET MASTER;

#
# Search for error message : 'arrived the end of the file'
#
--let $error_pattern = Error in Log_event::read_log_event().*
--source include/assert_error_log.inc

#
# Shutdown server
#
--source include/shutdown_mysqld.inc

--echo
--echo # 2. Truncated binary log
--echo ##############################################################################

#
# Swap header only event
#
--remove_file $MYSQLD_DATADIR/$binlog
--copy_file $MYSQLD_DATADIR/$binlog.truncformat $MYSQLD_DATADIR/$binlog

#
# Start server
#
--source include/start_mysqld.inc

RESET MASTER;

#
# Search for error message : 'binlog truncated in the middle of event; consider out of disk space'
#
let $error_pattern = Error in Log_event::read_log_event().*
  Error reading GTIDs from binary log.*
;
--source include/assert_error_log.inc

#
# Shutdown server
#
--source include/shutdown_mysqld.inc

--echo
--echo # 3. Test Found invalid event sequence while recovering from binary log file #
--echo ##############################################################################

#
# Swap format less binary log
#
--remove_file $MYSQLD_DATADIR/$binlog
--copy_file $MYSQLD_DATADIR/$binlog.formatless $MYSQLD_DATADIR/$binlog

#
# Start server
#
--source include/start_mysqld.inc

RESET MASTER;

#
# Search for error message
#
--let $error_pattern = Found invalid event sequence while recovering from binary log file.*
--source include/assert_error_log.inc

#
# Shutdown server
#
--source include/shutdown_mysqld.inc

#
# Restore binary log file
#
--remove_file $MYSQLD_DATADIR/$binlog
--copy_file $MYSQLD_DATADIR/$binlog.backup $MYSQLD_DATADIR/$binlog

#
# Now the server should start
#
--source include/start_mysqld.inc

--echo
--echo # 4. Test check !(ev->common_header->flags & LOG_EVENT_BINLOG_IN_USE_F) #
--echo #########################################################################

--let $debug_point = binlog_crash_between_close_and_open
--source include/add_debug_point.inc

--source include/expect_crash.inc
--error CR_SERVER_LOST
FLUSH BINARY LOGS;

#
# Start server
#
--source include/start_mysqld.inc

#
# Search for note message
#
--let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.1.err
--let SEARCH_PATTERN = \[Note\] \[[^]]*\] \[[^]]*\] Failed to open the crashed binlog file when source server is recovering it\.
--echo # Check for the "Failed to open the crashed binlog file when source server is recovering it\."
--source include/search_pattern.inc

#
# Cleanup
#
--remove_file $MYSQLD_DATADIR/$binlog.backup
--remove_file $MYSQLD_DATADIR/$binlog.header
--remove_file $MYSQLD_DATADIR/$binlog.truncformat
--remove_file $MYSQLD_DATADIR/$binlog.formatless