Unit Testing Web Services
From Doctor Dobb's Journal Oct 2008: Bringing Agile practices to service-oriented application development
For Agile developers, following best practices by doing Test-Driven Development of web service code can require extra work, but it's worth the effort.
Web services (WS) are becoming a key architectural aspect of large-scale distributed applications. Technology leaders are both launching service-centric applications, such as Google Earth, eBay Web Services, and Amazon's E-Commerce Service, and creating tools that enable other organizations to publish web services. The standards-based, fault-tolerant, self-describing nature of web services enable the creation of loosely coupled applications that run on heterogeneous systems. Web services also enable interoperability between different online applications and enable innovative, synergistic combinations: mashups. While the prime directive for developers once was "put it on the Internet", the main goal now is often to "make it a Service Oriented Architecture (SOA)." For Agile developers, following best practices by doing Test-Driven Development (TDD) of WS code can require extra effort, but is definitely feasible. In this article, I present techniques and patterns for unit testing WS applications to enable TDD as well as general-purpose testing.
For the rest: http://www.ddj.com/architect/211201695