Add forked Maatkit tools in bin/ and their tests in t/.

t/pt-table-checksum/offset_modulo.t

@@ -0,0 +1,52 @@
+#!/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 MaatkitTest;
+use Sandbox;
+require "$trunk/bin/pt-table-checksum";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $master_dbh = $sb->get_dbh_for('master');
+
+if ( !$master_dbh ) {
+   plan skip_all => 'Cannot connect to sandbox master';
+}
+else {
+   plan tests => 3;
+}
+
+my $output;
+my $cnf='/tmp/12345/my.sandbox.cnf';
+my $cmd = "$trunk/bin/pt-table-checksum -F $cnf 127.0.0.1";
+
+# Check --offset with --modulo
+$output = `$cmd --databases mysql --chunk-size 5 --modulo 7 --offset 'weekday(now())' --tables help_relation --chunk-size-limit 0 2>&1`;
+like($output, qr/^mysql\s+help_relation\s+\d+/m, '--modulo --offset runs');
+my @chunks = $output =~ m/help_relation\s+(\d+)/g;
+my $chunks = scalar @chunks;
+ok($chunks, 'There are several chunks with --modulo');
+
+my %differences;
+my $first = shift @chunks;
+while ( my $chunk = shift @chunks ) {
+   $differences{$chunk - $first} ++;
+   $first = $chunk;
+}
+is($differences{7}, $chunks - 1, 'All chunks are 7 apart');
+
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($master_dbh);
+exit;