

           #!/usr/bin/perl
           use strict;
           print "1..1\n";

           if (!eval { require Socket; Socket::inet_aton('pgp.mit.edu') }) {
               print "ok 1 # skip - Cannot connect to the keyserver";
           }
           elsif (!eval { require Module::Signature; 1 }) {
               warn "# Next time around, consider install Module::Signature,\n".
                    "# so you can verify the integrity of this distribution.\n";
               print "ok 1 # skip - Module::Signature not installed\n";
           }
           else {
               (Module::Signature::verify() == Module::Signature::SIGNATURE_OK())
                   or print "not ";
               print "ok 1 # Valid signature\n";
           }

