JezK
Edit File: tc_traversal.rb
# encoding: UTF-8 require './test_helper' require 'test/unit' class TestTranversal < Test::Unit::TestCase ROOT_NODES_LENGTH = 27 ROOT_ELEMENTS_LENGTH = 13 def setup filename = File.join(File.dirname(__FILE__), 'model/books.xml') @doc = XML::Document.file(filename) end def teardown @doc = nil end def test_children # Includes text nodes and such assert_equal(ROOT_NODES_LENGTH, @doc.root.children.length) end def test_children_iteration # Includes text nodes and such nodes = @doc.root.children.inject([]) do |arr, node| arr << node arr end assert_equal(ROOT_NODES_LENGTH, nodes.length) end def test_no_children # Get a node with no children node = @doc.find_first('/catalog/book[@id="bk113"]/price') assert_equal(0, node.children.length) end def test_no_children_inner_xml # Get a node with no children node = @doc.find_first('/catalog/book[@id="bk113"]/price') assert_nil(node.inner_xml) end def test_each # Includes text nodes and such nodes = @doc.root.inject([]) do |arr, node| arr << node arr end assert_equal(ROOT_NODES_LENGTH, nodes.length) end def test_each_element # Includes text nodes and such nodes = [] @doc.root.each_element do |node| nodes << node end assert_equal(ROOT_ELEMENTS_LENGTH, nodes.length) end def test_next nodes = [] node = @doc.root.first while node nodes << node node = node.next end assert_equal(ROOT_NODES_LENGTH, nodes.length) end def test_next? first_node = @doc.root.first assert(first_node.next?) last_node = @doc.root.last assert(!last_node.next?) end def test_prev nodes = [] node = @doc.root.last while node nodes << node node = node.prev end assert_equal(ROOT_NODES_LENGTH, nodes.length) end def test_prev? first_node = @doc.root.first assert(!first_node.prev?) last_node = @doc.root.last assert(last_node.prev?) end def test_parent? assert(!@doc.parent?) assert(@doc.root.parent?) end def test_child? assert(@doc.child?) assert(!@doc.root.first.child?) end def test_next_prev_equivalence next_nodes = [] last_nodes = [] node = @doc.root.first while node next_nodes << node node = node.next end node = @doc.root.last while node last_nodes << node node = node.prev end assert_equal(next_nodes, last_nodes.reverse) end def test_next_children_equivalence next_nodes = [] node = @doc.root.first while node next_nodes << node node = node.next end assert_equal(@doc.root.children, next_nodes) end def test_doc_class assert_instance_of(XML::Document, @doc) end def test_root_class assert_instance_of(XML::Node, @doc.root) end end