The method invoked by the testrunner to perform the action node.
Parameters: context - contains information about the context of the test that mightbe useful (such as all messages sent/received so far in thetest) Parameters: params - the list of parameteres specifed for the given node in thetest-spec xml (after the ##{...} substitution has beenperformed) throws: MactorException - to indicate that the action failed for a functional ornon-funtional reason (this will case the test to fail)