+Test the L<Tie::Hash::SerializedString> interface.
+Test is skipped if L<JSON> module unavailable.
+Test cases are not very thorough.
+Toby Inkster E<lt>email@example.comE<gt>.
+=head1 COPYRIGHT AND LICENCE
+This software is copyright (c) 2013 by Toby Inkster.
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
-use Test::Requires qw/ JSON /;