.">
  <!ENTITY % b "%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;">
  <!ENTITY % c "%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;">
  <!ENTITY % d "%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;">
  <!ENTITY % e "%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;">
  <!ENTITY % f "%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;">
  <!ENTITY % g "%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;">
  <!ENTITY test "test %g;">
]>
<cd></cd>
EOF

          assert_raise(REXML::ParseException) do
            REXML::Document.new(xml)
          end
          REXML::Security.entity_expansion_limit = 100
          assert_equal(100, REXML::Security.entity_expansion_limit)
          assert_raise(REXML::ParseException) do
            REXML::Document.new(xml)
          end
        end

        def test_empty_value
          xml = <<EOF
<!DOCTYPE root [
  <!ENTITY % a "">
  <!ENTITY % b "%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;%a;">
  <!ENTITY % c "%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;%b;">
  <!ENTITY % d "%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;%c;">
  <!ENTITY % e "%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;">
  <!ENTITY % f "%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;%e;">
  <!ENTITY % g "%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;%f;">
  <!ENTITY test "test %g;">
]>
<cd></cd>
EOF

          assert_raise(REXML::ParseException) do
            REXML::Document.new(xml)
          end
          REXML::Security.entity_expansion_limit = 100
          assert_equal(100, REXML::Security.entity_expansion_limit)
          assert_raise(REXML::ParseException) do
            REXML::Document.new(xml)
          end
        end
      end
    end

    def test_tag_in_cdata_with_not_ascii_only_but_ascii8bit_encoding_source
      tag = "<b>...</b>"
      message = "こんにちは、世界！" # Hello world! in Japanese
      xml = <<EOX
<?xml version="1.0" encoding="UTF-8"?>
<message><![CDATA[#{tag}#{message}]]></message>
EOX
      xml.force_encoding(Encoding::ASCII_8BIT)
      doc = REXML::Document.new(xml)
      assert_equal("#{tag}#{message}", doc.root.children.first.value)
    end

    def test_xml_declaration_standalone
      bug2539 = '[ruby-core:27345]'
      doc = REXML::Document.new('<?xml version="1.0" standalone="no"?>')
      assert_equal('no', doc.stand_alone?, bug2539)
      doc = REXML::Document.new('<?xml version="1.0" standalone= "no"?>')
      assert_equal('no', doc.stand_alone?, bug2539)
      doc = REXML::Document.new('<?xml version="1.0" standalone=  "no"?>')
      assert_equal('no', doc.stand_alone?, bug2539)
    end

    class WriteTest < Test::Unit::TestCase
      def setup
        @document = REXML::Document.new(<<-EOX)
<?xml version="1.0" encoding="UTF-8"?>
<message>Hello world!</message>
EOX
      end

      class ArgumentsTest < self
        def test_output
          output = ""
          @document.write(output)
          assert_equal(<<-EOX, output)
<?xml version='1.0' encoding='UTF-8'?>
<message>Hello world!</message>
EOX
        end

        def test_indent
          output = ""
          indent = 2
          @document.write(output, indent)
          assert_equal(<<-EOX.chomp, output)
<?xml version='1.0' encoding='UTF-8'?>
<message>
  Hello world!
</message>
EOX
        end

        def test_transitive
          output = ""
          indent = 2
          transitive = true
          @document.write(output, indent, transitive)
          assert_equal(<<-EOX, output)
<?xml version='1.0' encoding='UTF-8'?>
<message
>Hello world!</message
>
EOX
        end

        def test_ie_hack
          output = ""
          indent = -1
          transitive = false
          ie_hack = true
          document = REXML::Document.new("<empty/>")
          document.write(output, indent, transitive, ie_hack)
          assert_equal("<empty />", output)
        end

        def test_encoding
          output = ""
          indent = -1
          transitive = false
          ie_hack = false
          encoding = "Windows-31J"

          @document.xml_decl.encoding = "Shift_JIS"
          japanese_text = "こんにちは"
          @document.root.text = japanese_text
          @document.write(output, indent, transitive, ie_hack, encoding)
          assert_equal(<<-EOX.encode(encoding), output)
<?xml version='1.0' encoding='SHIFT_JIS'?>
<message>#{japanese_text}</message>
EOX
        end
      end

      class OptionsTest < self
        def test_output
          output = ""
          @document.write(:output => output)
          assert_equal(<<-EOX, output)
<?xml version='1.0' encoding='UTF-8'?>
<message>Hello world!</message>
EOX
        end

        def test_indent
          output = ""
          @document.write(:output => output, :indent => 2)
          assert_equal(<<-EOX.chomp, output)
<?xml version='1.0' encoding='UTF-8'?>
<message>
  Hello world!
</message>
EOX
        end

        def test_transitive
          output = ""
          @document.write(:output => output, :indent => 2, :transitive => true)
          assert_equal(<<-EOX, output)
<?xml version='1.0' encoding='UTF-8'?>
<message
>Hello world!</message
>
EOX
        end

        def test_ie_hack
          output = ""
          document = REXML::Document.new("<empty/>")
          document.write(:output => output, :ie_hack => true)
          assert_equal("<empty />", output)