Files
percona-toolkit/t/pt-table-sync/float_precision.t

75 lines
2.4 KiB
Perl

#!/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 PerconaTest;
use Sandbox;
require "$trunk/bin/pt-table-sync";
my $output;
my $vp = new VersionParser();
my $dp = new DSNParser(opts=>$dsn_opts);
my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
my $master_dbh = $sb->get_dbh_for('master');
my $slave_dbh = $sb->get_dbh_for('slave1');
if ( !$master_dbh ) {
plan skip_all => 'Cannot connect to sandbox master';
}
elsif ( !$slave_dbh ) {
plan skip_all => 'Cannot connect to sandbox slave';
}
else {
plan tests => 2;
}
$sb->wipe_clean($master_dbh);
$sb->wipe_clean($slave_dbh);
$sb->create_dbs($master_dbh, ['test']);
# #############################################################################
# Issue 410: mk-table-sync doesn't have --float-precision
# #############################################################################
$master_dbh->do('create table test.fl (id int not null primary key, f float(12,10), d double)');
$master_dbh->do('insert into test.fl values (1, 1.0000012, 2.0000012)');
sleep 1;
$slave_dbh->do('update test.fl set d = 2.0000013 where id = 1');
# The columns really are different at this point so we should
# get a REPLACE without using --float-precision.
$output = `$trunk/bin/pt-table-sync --sync-to-master h=127.1,P=12346,u=msandbox,p=msandbox,D=test,t=fl --print 2>&1`;
$output = remove_traces($output);
is(
$output,
"REPLACE INTO `test`.`fl`(`id`, `f`, `d`) VALUES ('1', '1.0000011921', '2.0000012');
",
'No --float-precision so double col diff at high precision (issue 410)'
);
# Now use --float-precision to roundoff the differing columns.
# We have 2.0000012
# vs. 2.0000013, so if we round at 6 places, they should be the same.
$output = `$trunk/bin/pt-table-sync --sync-to-master h=127.1,P=12346,u=msandbox,p=msandbox,D=test,t=fl --print --float-precision 6 2>&1`;
is(
$output,
'',
'--float-precision so no more diff (issue 410)'
);
# #############################################################################
# Done.
# #############################################################################
$sb->wipe_clean($master_dbh);
$sb->wipe_clean($slave_dbh);
exit;