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path: root/jni/ruby/test/rexml/test_elements.rb
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require 'test/unit/testcase'
require 'rexml/document'

module REXMLTests
  class ElementsTester < Test::Unit::TestCase
    include REXML
    def test_accessor
      doc = Document.new '<a><b/><c id="1"/><c id="2"/><d/></a>'
      assert_equal 'b', doc.root.elements[1].name
      assert_equal '1', doc.root.elements['c'].attributes['id']
      assert_equal '2', doc.root.elements[2,'c'].attributes['id']
    end

    def test_indexing
      doc = Document.new '<a/>'
      doc.root.elements[10] = Element.new('b')
      assert_equal 'b', doc.root.elements[1].name
      doc.root.elements[1] = Element.new('c')
      assert_equal 'c', doc.root.elements[1].name
      doc.root.elements['c'] = Element.new('d')
      assert_equal 'd', doc.root.elements[1].name
    end

    def test_delete
      doc = Document.new '<a><b/><c/><c id="1"/></a>'
      block = proc { |str|
        out = ''
        doc.write out
        assert_equal str, out
      }
      b = doc.root.elements[1]
      doc.root.elements.delete b
      block.call( "<a><c/><c id='1'/></a>" )
      doc.elements.delete("a/c[@id='1']")
      block.call( '<a><c/></a>' )
      doc.root.elements.delete 1
      block.call( '<a/>' )
    end

    def test_delete_all
      doc = Document.new '<a><c/><c/><c/><c/></a>'
      deleted = doc.elements.delete_all 'a/c'
      assert_equal 4, deleted.size
    end

    def test_ticket_36
      doc = Document.new( "<a xmlns:xi='foo'><b><xi:c id='1'/></b><xi:c id='2'/></a>" )

      deleted = doc.root.elements.delete_all( "xi:c" )
      assert_equal( 1, deleted.size )

      doc = Document.new( "<a xmlns:xi='foo'><b><xi:c id='1'/></b><xi:c id='2'/></a>" )
      deleted = doc.root.elements.delete_all( "//xi:c" )
      assert_equal( 2, deleted.size )
    end

    def test_add
      a = Element.new 'a'
      a.elements.add Element.new('b')
      assert_equal 'b', a.elements[1].name
      a.elements.add 'c'
      assert_equal 'c', a.elements[2].name
    end

    def test_size
      doc = Document.new '<a>sean<b/>elliott<b/>russell<b/></a>'
      assert_equal 6, doc.root.size
      assert_equal 3, doc.root.elements.size
    end

    def test_each
      doc = Document.new '<a><b/><c/><d/>sean<b/><c/><d/></a>'
      count = 0
      block = proc {|e| count += 1}
      doc.root.elements.each(&block)
      assert_equal 6, count
      count = 0
      doc.root.elements.each('b', &block)
      assert_equal 2, count
      count = 0
      doc.root.elements.each('child::node()', &block)
      assert_equal 6, count
      count = 0
      XPath.each(doc.root, 'child::node()', &block)
      assert_equal 7, count
    end

    def test_each_with_frozen_condition
      doc = Document.new('<books><book name="Ruby"/><book name="XML"/></books>')
      names = []
      doc.root.elements.each('book'.freeze) do |element|
        names << element.attributes["name"]
      end
      assert_equal(["Ruby", "XML"], names)
    end

    def test_to_a
      doc = Document.new '<a>sean<b/>elliott<c/></a>'
      assert_equal 2, doc.root.elements.to_a.size
      assert_equal 2, doc.root.elements.to_a("child::node()").size
      assert_equal 4, XPath.match(doc.root, "child::node()").size
    end

    def test_collect
      doc = Document.new( "<a><b id='1'/><b id='2'/></a>" )
      r = doc.elements.collect( "/a/b" ) { |e| e.attributes["id"].to_i }
      assert_equal( [1,2], r )
    end

    def test_inject
      doc = Document.new( "<a><b id='1'/><b id='2'/></a>" )
      r = doc.elements.inject( "/a/b", 3 ) { |s, e|
        s + e.attributes["id"].to_i
      }
      assert_equal 6, r
    end
  end
end