TIBCO supports a special XML message using RV. This message is structured differently than standard rv format messages. In tools such as the TIBCO Designer, XML format messages are created based on an XML Schema. In order to test messages that use this format use the xml file message format.
Currently each XML message must be defined in its own file and cannot be written in the test fixture inline. Rvtest will load the xml file and encode it to the TIBCO XML message format.