A SCA composite application can help you to design a test scenario that provides a thorough test of your Custom Adapter's functionality.
If the Custom Adapter provides both inbound and outbound functionality, the test composite can employ the adapter within both an inbound and outbound (or "end-to-end" scenario.
If the Custom Adapter is unidirectional (for example. only outbound), the test composite can be triggered through a SOAP entry point by using the SOA test console.
http://java.net/projects/oraclesoasuite11g/downloads/download/Adapters/Custom/sca_project.zip