ratom-with-xhtml.rb

require 'rubygems'
require 'atom'

xhtml = Atom::Content::Xhtml.new("<p>Some text</p>")

entry = Atom::Entry.new do |e|
  e.title   = "some title"
  e.updated = 12345
  e.content = xhtml
end

# both lines below raise exceptions
puts xhtml.to_xml
puts entry.to_xml