# -*- coding: utf-8 -*-

require "rexml/document"
require "test/unit"

class REXML::TestDocument < Test::Unit::TestCase
  def test_version_attributes_to_s
    doc = REXML::Document.new(<<-eoxml)
      <?xml version="1.0" encoding="UTF-8" standalone="no"?>
      <svg  id="svg2"
            xmlns:sodipodi="foo"
            xmlns:inkscape="bar"
            sodipodi:version="0.32"
            inkscape:version="0.44.1"
      >
      </svg>
    eoxml

    string = doc.to_s
    assert_match('xmlns:sodipodi', string)
    assert_match('xmlns:inkscape', string)
    assert_match('sodipodi:version', string)
    assert_match('inkscape:version', string)
  end

  def test_new
    doc = REXML::Document.new(<<EOF)
<?xml version="1.0" encoding="UTF-8"?>
<message>Hello world!</message>
EOF
    assert_equal("Hello world!", doc.root.children.first.value)
  end

  XML_WITH_NESTED_ENTITY = <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE member [
  <!ENTITY a "&b;&b;&b;&b;&b;&b;&b;&b;&b;&b;">
  <!ENTITY b "&c;&c;&c;&c;&c;&c;&c;&c;&c;&c;">
  <!ENTITY c "&d;&d;&d;&d;&d;&d;&d;&d;&d;&d;">
  <!ENTITY d "&e;&e;&e;&e;&e;&e;&e;&e;&e;&e;">
  <!ENTITY e "&f;&f;&f;&f;&f;&f;&f;&f;&f;&f;">
  <!ENTITY f "&g;&g;&g;&g;&g;&g;&g;&g;&g;&g;">
  <!ENTITY g "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx">
]>
<member>
&a;
</member>
EOF

  XML_WITH_NESTED_EMPTY_ENTITY = <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE member [
  <!ENTITY a "&b;&b;&b;&b;&b;&b;&b;&b;&b;&b;">
  <!ENTITY b "&c;&c;&c;&c;&c;&c;&c;&c;&c;&c;">
  <!ENTITY c "&d;&d;&d;&d;&d;&d;&d;&d;&d;&d;">
  <!ENTITY d "&e;&e;&e;&e;&e;&e;&e;&e;&e;&e;">
  <!ENTITY e "&f;&f;&f;&f;&f;&f;&f;&f;&f;&f;">
  <!ENTITY f "&g;&g;&g;&g;&g;&g;&g;&g;&g;&g;">
  <!ENTITY g "">
]>
<member>
&a;
</member>
EOF

  XML_WITH_NESTED_PARAMETER_ENTITY = <<EOF
<!DOCTYPE root [
  <!ENTITY % a "BOOM.BOOM.BOOM.BOOM.BOOM.BOOM.BOOM.BOOM.BOOM.">
  <!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

  XML_WITH_NESTED_EMPTY_PARAMETER_ENTITY = <<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

  XML_WITH_4_ENTITY_EXPANSION = <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE member [
  <!ENTITY a "a">
  <!ENTITY a2 "&a; &a;">
]>
<member>
&a;
&a2;
&lt;
</member>
EOF

  def test_entity_expansion_limit
    doc = REXML::Document.new(XML_WITH_NESTED_ENTITY)
    assert_raise(RuntimeError) do
      doc.root.children.first.value
    end
    REXML::Security.entity_expansion_limit = 100
    assert_equal(100, REXML::Security.entity_expansion_limit)
    doc = REXML::Document.new(XML_WITH_NESTED_ENTITY)
    assert_raise(RuntimeError) do
      doc.root.children.first.value
    end
    assert_equal(101, doc.entity_expansion_count)

    doc = REXML::Document.new(XML_WITH_NESTED_EMPTY_ENTITY)
    assert_raise(RuntimeError) do
      doc.root.children.first.value
    end
    REXML::Security.entity_expansion_limit = 100
    assert_equal(100, REXML::Security.entity_expansion_limit)
    doc = REXML::Document.new(XML_WITH_NESTED_EMPTY_ENTITY)
    assert_raise(RuntimeError) do
      doc.root.children.first.value
    end
    assert_equal(101, doc.entity_expansion_count)

    REXML::Security.entity_expansion_limit = 4
    doc = REXML::Document.new(XML_WITH_4_ENTITY_EXPANSION)
    assert_equal("\na\na a\n<\n", doc.root.children.first.value)
    REXML::Security.entity_expansion_limit = 3
    doc = REXML::Document.new(XML_WITH_4_ENTITY_EXPANSION)
    assert_raise(RuntimeError) do
      doc.root.children.first.value
    end
  ensure
    REXML::Security.entity_expansion_limit = 10000
  end

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

    assert_raise(REXML::ParseException) do
      REXML::Document.new(XML_WITH_NESTED_EMPTY_PARAMETER_ENTITY)
    end
    REXML::Security.entity_expansion_limit = 100
    assert_equal(100, REXML::Security.entity_expansion_limit)
    assert_raise(REXML::ParseException) do
      REXML::Document.new(XML_WITH_NESTED_EMPTY_PARAMETER_ENTITY)
    end
  ensure
    REXML::Security.entity_expansion_limit = 10000
  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)
      end

      def test_encoding
        output = ""
        encoding = "Windows-31J"
        @document.xml_decl.encoding = "Shift_JIS"
        japanese_text = "こんにちは"
        @document.root.text = japanese_text
        @document.write(:output => output, :encoding => encoding)
        assert_equal(<<-EOX.encode(encoding), output)
<?xml version='1.0' encoding='SHIFT_JIS'?>
<message>#{japanese_text}</message>
EOX
      end
    end
  end

  class BomTest < self
    class HaveEncodingTest < self
      def test_utf_8
        xml = <<-EOX.force_encoding("ASCII-8BIT")
<?xml version="1.0" encoding="UTF-8"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-8", document.encoding)
      end

      def test_utf_16le
        xml = <<-EOX.encode("UTF-16LE").force_encoding("ASCII-8BIT")
<?xml version="1.0" encoding="UTF-16"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".encode("UTF-16LE").force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-16", document.encoding)
      end

      def test_utf_16be
        xml = <<-EOX.encode("UTF-16BE").force_encoding("ASCII-8BIT")
<?xml version="1.0" encoding="UTF-16"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".encode("UTF-16BE").force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-16", document.encoding)
      end
    end

    class NoEncodingTest < self
      def test_utf_8
        xml = <<-EOX.force_encoding("ASCII-8BIT")
<?xml version="1.0"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-8", document.encoding)
      end

      def test_utf_16le
        xml = <<-EOX.encode("UTF-16LE").force_encoding("ASCII-8BIT")
<?xml version="1.0"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".encode("UTF-16LE").force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-16", document.encoding)
      end

      def test_utf_16be
        xml = <<-EOX.encode("UTF-16BE").force_encoding("ASCII-8BIT")
<?xml version="1.0"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".encode("UTF-16BE").force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)
        assert_equal("UTF-16", document.encoding)
      end
    end

    class WriteTest < self
      def test_utf_16
        xml = <<-EOX.encode("UTF-16LE").force_encoding("ASCII-8BIT")
<?xml version="1.0"?>
<message>Hello world!</message>
EOX
        bom = "\ufeff".encode("UTF-16LE").force_encoding("ASCII-8BIT")
        document = REXML::Document.new(bom + xml)

        actual_xml = ""
        document.write(actual_xml)
        expected_xml = <<-EOX.encode("UTF-16BE")
\ufeff<?xml version='1.0' encoding='UTF-16'?>
<message>Hello world!</message>
EOX
        assert_equal(expected_xml, actual_xml)
      end
    end
  end
end
