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path: root/test/rexml/parse/test_document_type_declaration.rb
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# frozen_string_literal: false
require "test/unit"
require "rexml/document"

module REXMLTests
  class TestParseDocumentTypeDeclaration < Test::Unit::TestCase
    private
    def parse(doctype)
      REXML::Document.new(<<-XML).doctype
#{doctype}
<r/>
      XML
    end

    class TestName < self
      def test_valid
        doctype = parse(<<-DOCTYPE)
<!DOCTYPE r>
        DOCTYPE
        assert_equal("r", doctype.name)
      end

      def test_garbage_plus_before_name_at_line_start
        exception = assert_raise(REXML::ParseException) do
          parse(<<-DOCTYPE)
<!DOCTYPE +
r SYSTEM "urn:x-rexml:test" [
]>
          DOCTYPE
        end
        assert_equal(<<-DETAIL.chomp, exception.to_s)
Malformed DOCTYPE: invalid name
Line: 5
Position: 51
Last 80 unconsumed characters:
+ r SYSTEM "urn:x-rexml:test" [ ]>  <r/> 
        DETAIL
      end
    end

    class TestExternalID < self
      class TestSystem < self
        def test_left_bracket_in_system_literal
          doctype = parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM "urn:x-rexml:[test" [
]>
          DOCTYPE
          assert_equal([
                         "r",
                         "SYSTEM",
                         nil,
                         "urn:x-rexml:[test",
                       ],
                       [
                         doctype.name,
                         doctype.external_id,
                         doctype.public,
                         doctype.system,
                       ])
        end

        def test_greater_than_in_system_literal
          doctype = parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM "urn:x-rexml:>test" [
]>
          DOCTYPE
          assert_equal([
                         "r",
                         "SYSTEM",
                         nil,
                         "urn:x-rexml:>test",
                       ],
                       [
                         doctype.name,
                         doctype.external_id,
                         doctype.public,
                         doctype.system,
                       ])
        end

        def test_no_literal
          exception = assert_raise(REXML::ParseException) do
            parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM>
            DOCTYPE
          end
          assert_equal(<<-DETAIL.chomp, exception.to_s)
Malformed DOCTYPE: system literal is missing
Line: 3
Position: 26
Last 80 unconsumed characters:
 SYSTEM>  <r/> 
          DETAIL
        end

        def test_garbage_after_literal
          exception = assert_raise(REXML::ParseException) do
            parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM 'r.dtd'x'>
            DOCTYPE
          end
          assert_equal(<<-DETAIL.chomp, exception.to_s)
Malformed DOCTYPE: garbage after external ID
Line: 3
Position: 36
Last 80 unconsumed characters:
x'>  <r/> 
          DETAIL
        end

        def test_single_quote
          doctype = parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM 'r".dtd'>
          DOCTYPE
          assert_equal("r\".dtd", doctype.system)
        end

        def test_double_quote
          doctype = parse(<<-DOCTYPE)
<!DOCTYPE r SYSTEM "r'.dtd">
          DOCTYPE
          assert_equal("r'.dtd", doctype.system)
        end
      end

      class TestPublic < self
        class TestPublicIDLiteral < self
          def test_content_double_quote
            exception = assert_raise(REXML::ParseException) do
              parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC 'double quote " is invalid' "r.dtd">
              DOCTYPE
            end
            assert_equal(<<-DETAIL.chomp, exception.to_s)
Malformed DOCTYPE: invalid public ID literal
Line: 3
Position: 62
Last 80 unconsumed characters:
 PUBLIC 'double quote " is invalid' "r.dtd">  <r/> 
            DETAIL
          end

          def test_single_quote
            doctype = parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC 'public-id-literal' "r.dtd">
            DOCTYPE
            assert_equal("public-id-literal", doctype.public)
          end

          def test_double_quote
            doctype = parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC "public'-id-literal" "r.dtd">
            DOCTYPE
            assert_equal("public'-id-literal", doctype.public)
          end
        end

        class TestSystemLiteral < self
          def test_garbage_after_literal
            exception = assert_raise(REXML::ParseException) do
              parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC 'public-id-literal' 'system-literal'x'>
              DOCTYPE
            end
            assert_equal(<<-DETAIL.chomp, exception.to_s)
Malformed DOCTYPE: garbage after external ID
Line: 3
Position: 65
Last 80 unconsumed characters:
x'>  <r/> 
           DETAIL
          end

          def test_single_quote
            doctype = parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC "public-id-literal" 'system"-literal'>
            DOCTYPE
            assert_equal("system\"-literal", doctype.system)
          end

          def test_double_quote
            doctype = parse(<<-DOCTYPE)
<!DOCTYPE r PUBLIC "public-id-literal" "system'-literal">
            DOCTYPE
            assert_equal("system'-literal", doctype.system)
          end
        end
      end
    end

    class TestMixed < self
      def test_entity_element
        doctype = parse(<<-INTERNAL_SUBSET)
<!ENTITY entity-name "entity content">
<!ELEMENT element-name EMPTY>
        INTERNAL_SUBSET
        assert_equal([REXML::Entity, REXML::ElementDecl],
                     doctype.children.collect(&:class))
      end

      def test_attlist_entity
        doctype = parse(<<-INTERNAL_SUBSET)
<!ATTLIST attribute-list-name attribute-name CDATA #REQUIRED>
<!ENTITY entity-name "entity content">
        INTERNAL_SUBSET
        assert_equal([REXML::AttlistDecl, REXML::Entity],
                     doctype.children.collect(&:class))
      end

      def test_notation_attlist
        doctype = parse(<<-INTERNAL_SUBSET)
<!NOTATION notation-name SYSTEM "system-literal">
<!ATTLIST attribute-list-name attribute-name CDATA #REQUIRED>
        INTERNAL_SUBSET
        assert_equal([REXML::NotationDecl, REXML::AttlistDecl],
                     doctype.children.collect(&:class))
      end

      private
      def parse(internal_subset)
        super(<<-DOCTYPE)
<!DOCTYPE r SYSTEM "urn:x-rexml:test" [
#{internal_subset}
]>
        DOCTYPE
      end
    end
  end
end