mariadb/mysql-test/include/search_pattern_in_file.inc
Kristian Nielsen 439f75f849 Fix test failures in rpl.rpl_checksum and rpl.rpl_gtid_errorlog.
These tests use search_pattern_in_file.inc to search the error log for
expected output. However, search_pattern_in_file.inc by default searched only
the first 50000 bytes, so if the error log grew too big the tests would fail.

This patch extends search_pattern_in_file.inc with an option to specify how
much of the file to search, and whether to search from the start of the file
or from the end. Then the rpl.rpl_checksum and rpl.rpl_gtid_errorlog test
cases are fixed to search the last 50000 bytes of the error log, which will
work no matter how large prior tests have made it.
2014-06-30 13:59:21 +02:00

81 lines
3.2 KiB
PHP

# Purpose:
# Simple search with Perl for a pattern in some file.
#
# The advantages compared to thinkable auxiliary constructs using the
# mysqltest language and SQL are:
# 1. We do not need a running MySQL server.
# 2. SQL causes "noise" during debugging and increases the size of logs.
# Perl code does not disturb at all.
#
# The environment variables SEARCH_FILE and SEARCH_PATTERN must be set
# before sourcing this routine.
#
# Optionally, SEARCH_RANGE can be set to the max number of bytes of the file
# to search. If negative, it will search that many bytes at the end of the
# file. The default is to search only the first 50000 bytes of the file.
#
# In case of
# - SEARCH_FILE and/or SEARCH_PATTERN is not set
# - SEARCH_FILE cannot be opened
# - SEARCH_FILE does not contain SEARCH_PATTERN
# the test will abort immediate.
# MTR will report something like
# ....
# worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 13000..13009
# main.1st [ pass ] 3
# innodb.innodb_page_size [ fail ]
# Test ended at 2011-11-11 18:15:58
#
# CURRENT_TEST: innodb.innodb_page_size
# # ERROR: The file '<name>' does not contain the expected pattern <pattern>
# mysqltest: In included file "./include/search_pattern_in_file.inc":
# included from ./include/search_pattern_in_file.inc at line 36:
# At line 25: command "perl" failed with error 255. my_errno=175
#
# The result from queries just before the failure was:
# ...
# - saving '<some path>' to '<some path>'
# main.1st [ pass ] 2
#
# Typical use case (check invalid server startup options):
# let $error_log= $MYSQLTEST_VARDIR/log/my_restart.err;
# --error 0,1
# --remove_file $error_log
# let SEARCH_FILE= $error_log;
# let SEARCH_RANGE= -50000;
# # Stop the server
# let $restart_file= $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
# --exec echo "wait" > $restart_file
# --shutdown_server 10
# --source include/wait_until_disconnected.inc
#
# --error 1
# --exec $MYSQLD_CMD <whatever wrong setting> > $error_log 2>&1
# # The server restart aborts
# let SEARCH_PATTERN= \[ERROR\] Aborting;
# --source include/search_pattern_in_file.inc
#
# Created: 2011-11-11 mleich
#
perl;
use strict;
my $search_file= $ENV{'SEARCH_FILE'} or die "SEARCH_FILE not set";
my $search_pattern= $ENV{'SEARCH_PATTERN'} or die "SEARCH_PATTERN not set";
my $search_range= $ENV{'SEARCH_RANGE'};
my $file_content;
$search_range= 50000 unless $search_range =~ /-?[0-9]+/;
open(FILE, "$search_file") or die("Unable to open '$search_file': $!\n");
if ($search_range >= 0) {
read(FILE, $file_content, $search_range, 0);
} else {
my $size= -s $search_file;
$search_range = -$size if $size > -$search_range;
seek(FILE, $search_range, 2);
read(FILE, $file_content, -$search_range, 0);
}
close(FILE);
if ( not $file_content =~ m{$search_pattern} ) {
die("# ERROR: The file '$search_file' does not contain the expected pattern $search_pattern\n->$file_content<-\n");
}
EOF