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

t/pt-online-schema-change/option_sanity.t

@@ -0,0 +1,50 @@
+#!/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 tests => 4;
+
+use MaatkitTest;
+
+my $output  = "";
+my $cmd     = "$trunk/bin/pt-online-schema-change";
+
+$output = `$cmd`;
+like(
+   $output,
+   qr/A DSN with a t part must be specified/,
+   "Must specify a DSN with t part"
+);
+
+$output = `$cmd h=127.1,P=12345,u=msandbox,p=msandbox`;
+like(
+   $output,
+   qr/The DSN must specify a t/,
+   "DSN must specify t part"
+);
+
+$output = `$cmd h=127.1,P=12345,u=msandbox,p=msandbox h=127.1`;
+like(
+   $output,
+   qr/Specify only one DSN/,
+   "Only 1 DSN allowed"
+);
+
+$output = `$cmd h=127.1,P=12345,t=tbl`;
+like(
+   $output,
+   qr/No database was specified/,
+   "Either DSN D part or --database required"
+);
+
+# #############################################################################
+# Done.
+# #############################################################################
+exit;