std::cout 	<< "wfOutput:" << std::endl
			<< "\tisOk: " << wfOutput.isOk.getValue() << std::endl;
	if (!wfOutput.isOk.getValue()) {
		#include <sstream>
		std::stringstream ss;
		ss << "Test Failure: isOk [" << wfOutput.isOk.getValue() << "] is not true.";
		throw wfr::exception::wfr_fatal_error(ss.str());
	}