# File ext/libxml/tests/tc_xml_document_write3.rb, line 59
  def test_ruby_xml_document_write_set_doc_property()
    xml = "<?xml version=\"1.0\"?>\n"
    xml << "<rubynet xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n"
    xml << "  <pkg/>\n"
    xml << "</rubynet>\n"
    @doc['xmlns:xlink'] = "http://www.w3.org/1999/xlink"
    pkg = @doc.root.child = XML::Node.new('pkg')
    assert_equal(xml, @doc.to_s)
  end