}
        }.getChildUrlRules(null, null).map(v -> v.getFirst() + ":" + v.getSecond()).collect(Collectors.joining(",")));
    }

    public void test_convertChildUrlList() {
        final FessXpathTransformer fessXpathTransformer = new FessXpathTransformer() {
            protected PathMappingHelper getPathMappingHelper() {
                return new PathMappingHelper();