root / test / test_elements.rb

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

class ElementsTester < Test::Unit::TestCase
        include REXML
        def test_elements_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_elements_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_elements_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_elements_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_elements_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_elements_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_elements_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_elements_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_elements_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_elements_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