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

t/pt-show-grants/issue_445.t

@@ -0,0 +1,72 @@
+#!/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-show-grants";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $dbh = $sb->get_dbh_for('master');
+
+if ( !$dbh ) {
+   plan skip_all => 'Cannot connect to sandbox master';
+}
+else {
+   plan tests => 4;
+}
+
+$sb->wipe_clean($dbh);
+
+my $output;
+my $cnf = '/tmp/12345/my.sandbox.cnf';
+
+# #############################################################################
+# Issue 445: mk-show-grants --revoke crashes 
+# #############################################################################
+diag(`/tmp/12345/use -u root -e "GRANT USAGE ON *.* TO ''\@''"`);
+$output = `/tmp/12345/use -e "SELECT user FROM mysql.user WHERE user = ''"`;
+like(
+   $output,
+   qr/user/,
+   'Added anonymous user (issue 445)'
+);
+
+eval {
+   $output = output(
+      sub { mk_show_grants::main('-F', $cnf, '--revoke'); }
+   );
+};
+is(
+   $EVAL_ERROR,
+   '',
+   'Does not die on anonymous user (issue 445)',
+);
+like(
+   $output,
+   qr/REVOKE USAGE ON \*\.\* FROM ''\@'';/,
+   'Prints revoke for anonymous user (issue 445)'
+);
+
+diag(`/tmp/12345/use -u root -e "DROP USER ''\@''"`);
+$output = `/tmp/12345/use -e "SELECT user FROM mysql.user WHERE user = ''"`;
+is(
+   $output,
+   '',
+   'Removed anonymous user (issue 445)'
+);
+
+# #############################################################################
+# Done.
+# #############################################################################
+exit;