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PT-2052 - Tools should default to unbuffered stdout/stderr

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- Added test case
This commit is contained in:
Sveta Smirnova
2025-08-06 16:13:52 +03:00
parent 734d6231c2
commit 51f40f2cbb
1 changed files with 112 additions and 0 deletions
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112
t/pt-table-checksum/pt-2052.t Normal file
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#!/usr/bin/env perl
BEGIN {
die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
};
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Test::More;
use Time::Local;
use PerconaTest;
use Sandbox;
require "$trunk/bin/pt-table-checksum";
my $dp = new DSNParser(opts=>$dsn_opts);
my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
my $dbh = $sb->get_dbh_for('source');
my $output = `$trunk/bin/pt-table-checksum h=127.1,P=12345,u=msandbox,p=msandbox --set-vars innodb_lock_wait_timeout=3 --chunk-size=50 -d sakila --buffer-stdout 2>&1 | tee | ts '%m-%dT%H:%M:%S'`;
my @lines = split(/\n/, $output);
my @times = ( $lines[3] =~ m/\d\d-\d\dT\d\d:\d\d:\d\d/g );
is(
scalar(@times),
2,
"Expected number of timestamp values"
) or diag($output);
my ($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[0]);
my $time_ts = timelocal($sec, $min, $hour, $day, $month);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[1]);
my $time_tool = timelocal($sec, $min, $hour, $day, $month);
cmp_ok(
$time_ts - $time_tool, 'gt', 1,
"Print delay is expected for the buffered output"
) or diag($output);
$output = `$trunk/bin/pt-table-checksum h=127.1,P=12345,u=msandbox,p=msandbox --set-vars innodb_lock_wait_timeout=3 --chunk-size=50 -d sakila 2>&1 | tee | ts '%m-%dT%H:%M:%S'`;
@lines = split(/\n/, $output);
@times = ( $lines[3] =~ m/\d\d-\d\dT\d\d:\d\d:\d\d/g );
is(
scalar(@times),
2,
"Expected number of timestamp values"
) or diag($output);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[0]);
$time_ts = timelocal($sec, $min, $hour, $day, $month);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[1]);
$time_tool = timelocal($sec, $min, $hour, $day, $month);
cmp_ok(
$time_ts - $time_tool, 'gt', 1,
"STDOUT is buffered by default"
) or diag($output);
$output = `$trunk/bin/pt-table-checksum h=127.1,P=12345,u=msandbox,p=msandbox --set-vars innodb_lock_wait_timeout=3 --chunk-size=50 -d sakila --no-buffer-stdout 2>&1 | tee | ts '%m-%dT%H:%M:%S'`;
@lines = split(/\n/, $output);
@times = ( $lines[3] =~ m/\d\d-\d\dT\d\d:\d\d:\d\d/g );
is(
scalar(@times),
2,
"Expected number of timestamp values"
) or diag($output);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[0]);
$time_ts = timelocal($sec, $min, $hour, $day, $month);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[1]);
$time_tool = timelocal($sec, $min, $hour, $day, $month);
cmp_ok(
$time_ts - $time_tool, 'le', 1,
"Print delay is not expected when buffering is disabled"
) or diag($output);
$output = `$trunk/bin/pt-table-checksum h=127.1,P=12345,u=msandbox,p=msandbox --set-vars innodb_lock_wait_timeout=3 --chunk-size=50 -d sakila --nobuffer-stdout 2>&1 | tee | ts '%m-%dT%H:%M:%S'`;
@lines = split(/\n/, $output);
@times = ( $lines[3] =~ m/\d\d-\d\dT\d\d:\d\d:\d\d/g );
is(
scalar(@times),
2,
"Expected number of timestamp values"
) or diag($output);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[0]);
$time_ts = timelocal($sec, $min, $hour, $day, $month);
($month, $day, $hour, $min, $sec) = split(/[T:-]+/, $times[1]);
$time_tool = timelocal($sec, $min, $hour, $day, $month);
cmp_ok(
$time_ts - $time_tool, 'le', 1,
"Test 2: Print delay is not expected when buffering is disabled"
) or diag($output);
# #############################################################################
# Done.
# #############################################################################
$sb->wipe_clean($dbh);
ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
done_testing;