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require 'test/unit/testcase'
require 'rexml/document'

module REXMLTests
  class AttributesTester < Test::Unit::TestCase
    include REXML
    def test_accessor
      doc = Document.new("<a xmlns:foo='a' xmlns:bar='b' foo:att='1' bar:att='2' att='3'/>")
      assert_equal '3', doc.root.attributes['att']
      assert_equal '2', doc.root.attributes['bar:att']
      doc.root.attributes['att'] = 5
      assert_equal '5', doc.root.attributes['att']
    end

    def test_each_attribute
      doc = Document.new('<a x="1" y="2"/>')
      doc.root.attributes.each_attribute {|attr|
        if attr.expanded_name == 'x'
          assert_equal '1', attr.value
        elsif attr.expanded_name == 'y'
          assert_equal '2', attr.value
        else
          assert_fail "No such attribute!!"
        end
      }
    end

    def test_each
      doc = Document.new('<a x="1" y="2"/>')
      doc.root.attributes.each {|name, value|
        if name == 'x'
          assert_equal '1', value
        elsif name == 'y'
          assert_equal '2', value
        else
          assert_fail "No such attribute!!"
        end
      }
    end

    def test_get_attribute
      doc = Document.new('<a xmlns:x="a" x:foo="1" foo="2" bar="3"/>')
      assert_equal '2', doc.root.attributes.get_attribute("foo").value
      assert_equal '1', doc.root.attributes.get_attribute("x:foo").value
    end

    def test_size
      doc = Document.new("<a xmlns:foo='a' x='1' y='2' foo:x='3'/>")
      assert_equal 4, doc.root.attributes.length
    end

    def test_setter
      doc = Document.new("<a xmlns:x='a' x:foo='1' foo='3'/>")
      doc.root.attributes['y:foo'] = '2'
      assert_equal '2', doc.root.attributes['y:foo']
      doc.root.attributes['foo'] = '4'
      assert_equal '4', doc.root.attributes['foo']
      doc.root.attributes['x:foo'] = nil
      assert_equal 3, doc.root.attributes.size
    end

    def test_delete
      doc = Document.new("<a xmlns:y='a' xmlns:x='b' xmlns:z='c' y:foo='0' x:foo='1' foo='3' z:foo='4'/>")
      doc.root.attributes.delete 'foo'
      assert_equal 6, doc.root.attributes.size
      assert_equal '1', doc.root.attributes['x:foo']

      doc.root.attributes.delete 'x:foo'
      assert_equal 5, doc.root.attributes.size

      attr = doc.root.attributes.get_attribute('y:foo')
      doc.root.attributes.delete attr
      assert_equal 4, doc.root.attributes.size

      assert_equal '4', doc.root.attributes['z:foo']
    end

    def test_prefixes
      doc = Document.new("<a xmlns='foo' xmlns:x='bar' xmlns:y='twee' z='glorp' x:k='gru'/>")
      prefixes = doc.root.attributes.prefixes
      assert_equal 2, prefixes.size
      assert_equal 0, (prefixes - ['x', 'y']).size
    end

    # Contributed by Mike Stok
    def test_values_with_apostrophes
      doc = Document.new(%q#<tag h1="1'2'" h2='1"2'/>#)
      s = doc.to_s
      assert(s =~ /h1='1&apos;2&apos;'/)
      assert(s =~ /h2='1"2'/)
    end

    # Submitted by Kou
    def test_namespace_conflict
      assert_raise( ParseException,
                    "Declaring two attributes with the same namespace should be an error" ) do
        REXML::Document.new <<-XML
        <x xmlns:n1="http://www.w3.org"
           xmlns:n2="http://www.w3.org" >
          <bad n1:a="1"  n2:a="2" />
        </x>
        XML
      end

      REXML::Document.new("<a xmlns:a='a' xmlns:b='a'></a>")
    end

    # Submitted by Kou
    def test_attribute_deletion
      e = REXML::Element.new
      e.add_namespace("a", "http://a/")
      e.add_namespace("b", "http://b/")
      e.add_attributes({"c" => "cc", "a:c" => "cC", "b:c" => "CC"})

      e.attributes.delete("c")
      assert_nil(e.attributes.get_attribute("c"))

      before_size = e.attributes.size
      e.attributes.delete("c")
      assert_nil(e.attributes.get_attribute("c"))
      assert_equal(before_size, e.attributes.size)

      e.attributes.delete(e.attributes.get_attribute("a:c"))
      assert_nil(e.attributes.get_attribute("a:c"))

      e.attributes.delete("b:c")
      assert_nil(e.attributes.get_attribute("b:c"))

      before_size = e.attributes.size
      e.attributes.delete(e.attributes.get_attribute("b:c"))
      assert_nil(e.attributes.get_attribute("b:c"))
      assert_equal(before_size, e.attributes.size)

      before_size = e.attributes.size
      e.attributes.delete("c")
      assert_nil(e.attributes.get_attribute("c"))
      assert_equal(before_size, e.attributes.size)

      e.add_attribute("c", "cc")

      e.attributes.delete(e.attributes.get_attribute("c"))
      assert_nil(e.attributes.get_attribute("c"))
    end

    # Submitted by Kou
    def test_element_usage
      attr = Attribute.new("name", "value")
      elem = Element.new("elem")
      a = Attribute.new(attr, elem)
      assert_equal(elem, a.element)
    end

    def attr_test(attr_name,attr_value)
      a1 = REXML::Attribute.new(attr_name,attr_value)

      s1 = a1.value
      s2 = a1.value

      #p s1
      #p s2
      assert_equal(s1,s2)

      a2 = REXML::Attribute.new(attr_name,attr_value)

      a2.to_s        # NB invocation of to_s
      s1 = a2.value
      s2 = a2.value

      #p s1
      #p s2
      assert_equal(s1,s2)
    end

    def test_amp_attributes
      attr_test('name','value with &amp; ampersand only')
    end

    def test_amp_and_lf_attributes
      attr_test('name','value with LF &#x000a; &amp; ampersand')
    end

    def test_quoting
      d = Document.new(%q{<a x='1' y="2"/>})
      assert_equal( %q{<a x='1' y='2'/>}, d.to_s )
      d.root.context[:attribute_quote] = :quote
      assert_equal( %q{<a x="1" y="2"/>}, d.to_s )

      d = Document.new(%q{<a x='1' y="2"><b z='3'/></a>})
      assert_equal( %q{<a x='1' y='2'><b z='3'/></a>}, d.to_s )
      d.root.context[:attribute_quote] = :quote
      assert_equal( %q{<a x="1" y="2"><b z="3"/></a>}, d.to_s )
    end

    def test_ticket_127
      doc = Document.new
      doc.add_element 'a', { 'v' => 'x & y' }
      assert doc.to_s.index(';')
    end

    def test_to_a_with_namespaces
      document = Document.new(<<-XML)
<root
  xmlns:ns1="http://example.org/ns1"
  xmlns:ns2="http://example.org/ns2">
  <child
    ns1:attribute="ns1"
    ns2:attribute="ns2"
        attribute="no-ns"
    other-attribute="other-value"/>
</root>
XML
      child = document.root.elements["child"]
      assert_equal([
                     "attribute='no-ns'",
                     "ns1:attribute='ns1'",
                     "ns2:attribute='ns2'",
                     "other-attribute='other-value'",
                   ],
                   child.attributes.to_a.collect(&:to_string).sort)
    end
  end
end