Testing WCF Services using groovyWS (Apache CXF)

I wanted to use groovyWS to test my WSDL-first .Net WCF web services. By default, WCF doesn't publish its WSDL, it doesn't publish a flat WSDL, and the recommended WsHttpBinding binding makes groovyWS unhappy. Once you work around these things, it is possible to very conveniently write independent dynamic tests for your services.

Since it took a while to collect all this information, I thought I would post my result: a WCF ping service that is interoperable with a groovyWS (i.e. Apache CXF) client.