asciidoctor.renderFile(new File(
"target/test-classes/toc2sample.asciidoc"), options);
File renderedFile = new File(testFolder.getRoot(), "toc2sample.html");
Document doc = Jsoup.parse(renderedFile, "UTF-8");
Elements body = doc.select("body");
String classAttribute = body.attr("class");
String[] classAttributes = classAttribute.split(" ");
assertThat(classAttributes, hasItemInArray("toc2"));
assertThat(classAttributes, hasItemInArray("toc-right"));