How to unit test WCF services? Any 3rd Party tools available?
If you want to test the actual running service then SoapUI is free and has some excellent features. The only caveat is that I have only tried it with the Basic HTTP binding.
I have seen SOA Test used to evaluate performance and scalability tests on WCF services, if this is what you seek. I have no information on cost or liscencing.
In our case, we captured the messages from our UI in order to perform automated testing.