See Testing and QA Tutorials, Test::XT, and see how these modules do tests, Plack, Dancer

Then think about what you're going to test about your module :)

Depending on what you're testing, you might mock use a live test server, that uses a few raw SOAP responses ... but I really don't know what you should test :)

See also PrePAN - Social Reviewing for Perl Modules and http://codereview.stackexchange.com/, but I expect, around christmas/holiday season, traffic to be equally as low as perlmonks :)