Loading xml document using Nokogiri and retrieving CDATA element

This is an extension of my last post (problems with REXML) which has me looking to Nokogiri again. The reason I am not using Nokogiri is I can not seem to find a way to get CDATA out of a Nokogiri document.

First, can you tell me if I am loading my document correctly, because when I call my_document.to_xml, I only get one line back:

(rdb:1) test_file = Nokogiri::XML(mismo_xml_file)
#<Nokogiri::XML::Document:0x5dd22 name=“document”>
(rdb:1) test_file.to_xml
“<?xml version=\"1.0\"?>\n”

So maybe this is the first step and if I get the full doc to load, my cdata will be there?!!

Alternatively, if you have a code snippet of loading a doc and successfully getting CDATA out, that would be a great help!

Thanks in advance,