public final void requireWidgetsRenderToHeadTag(final String requireString)
throws ExpressionCompileException {
final Respond respond = RespondersForTesting.newRespond();
respond.require(requireString);
respond.require(requireString);
WidgetChain chain = new ProceedingWidgetChain();
final MvelEvaluatorCompiler compiler = new MvelEvaluatorCompiler(Object.class);
chain.addWidget(new HeaderWidget(new TerminalWidgetChain(),