new SlavePageRequest(properties, null, prefix, null);
CharArrayWriter writer = new CharArrayWriter();
final HtmlWriter htmlWriter = new HtmlWriter(writer, prefix);
page.render(htmlWriter, request);
String html = writer.toString();
String jsonFileInfo = new Gson().toJson(fileInfo.toFileSource(prefix, schemes));
assertTrue(jsonFileInfo + " is not found in " + html, html.contains(jsonFileInfo));
}
}