MActor is an extensible integration test tool. It can facilitate tests of any XML-based integration. Adapters for TIBCO Rendezvous, HTTP, SOAP, file system and IBM MQSeries are currently included. Tests are specified in XML using the Test Specification Language, and input data to the tests are specified in HTML (in a similar manner as utilized in the FitNesse testing Framework). Messages that are published from the tests are typically constructed based on template messages where the values of some elements/attributes are replaces using XPath, but a number of other approaches are possible .