require "xml"
require 'test/unit'


class TC_XML_Document < Test::Unit::TestCase
  def setup
    xp = XML::Parser.new
    assert_instance_of(XML::Parser, xp)
    str = '<ruby_array uga="booga" foo="bar"><fixnum>one</fixnum><fixnum>two</fixnum></ruby_array>'
    assert_equal(str, xp.string = str)
    @doc = xp.parse
    assert_instance_of(XML::Document, @doc)
  end

  def teardown
    @doc = nil
  end

  def test_libxml_document_find
    set = @doc.find('/ruby_array/fixnum')
    assert_instance_of(XML::XPath::Object, set)
    assert_raise(NoMethodError) {
      xpt = set.xpath
    }
  end

  # FIXME XML::Parser::enabled_zlib? zlib support
  # def test_ruby_xml_document_compression
  #   if XML::Parser::enabled_zlib?
  #     0.upto(9) do |i|
  #       assert_equal(i, @doc.compression = i)
  #       assert_equal(i, @doc.compression)
  #     end
  # 
  #     9.downto(0) do |i|
  #       assert_equal(i, @doc.compression = i)
  #       assert_equal(i, @doc.compression)
  #     end
  # 
  #     10.upto(20) do |i|
  #       # assert_equal(9, @doc.compression = i)
  #       assert_equal(i, @doc.compression = i) # This works around a bug in Ruby 1.8
  #       assert_equal(9, @doc.compression)
  #     end
  # 
  #     -1.downto(-10) do |i|
  #       # assert_equal(0, @doc.compression = i)
  #       assert_equal(i, @doc.compression = i) # FIXME This bug should get fixed ASAP
  #       assert_equal(0, @doc.compression)
  #     end
  #   end
  # end
  
# FIXME Document#save
#   def test_save
#     filename = 'test_write' 
#     bytes = @doc.save(filename)
#     assert_equal(110, bytes)
#     contents = File.read(filename)
#     
#     expected =<<-EOS
# <?xml version="1.0"?>
# <ruby_array uga="booga" foo="bar"><fixnum>one</fixnum><fixnum>two</fixnum></ruby_array>
# EOS
#     assert_equal(expected, contents)
#   ensure
#     File.delete(filename)    
#   end

# FIXME Document#save  
#   def test_save_formatted
#     filename = 'test_write' 
#     bytes = @doc.save(filename, true)
#     assert_equal(117, bytes)
#     contents = File.read(filename)
#     
#     expected =<<-EOS
# <?xml version="1.0"?>
# <ruby_array uga="booga" foo="bar">
#   <fixnum>one</fixnum>
#   <fixnum>two</fixnum>
# </ruby_array>
# EOS
#     assert_equal(expected, contents)
#   ensure
#     File.delete(filename)    
#   end
  
  # FIXME Document#save
  # def test_save_formatted_invalid
  #   filename = 'test_write' 
  #   
  #   assert_raise(ArgumentError) do
  #     @doc.save(filename, 1)
  #   end
  # end  
end