require "helper" module Nokogiri module HTML class TestDocument < Nokogiri::TestCase def setup super @html = Nokogiri::HTML.parse(File.read(HTML_FILE)) end def test_nil_css # Behavior is undefined but shouldn't break assert @html.css(nil) assert @html.xpath(nil) end def test_exceptions_remove_newlines errors = @html.errors assert errors.length > 0, 'has errors' errors.each do |error| assert_equal(error.to_s.chomp, error.to_s) end end def test_fragment fragment = @html.fragment assert_equal 0, fragment.children.length end def test_document_takes_config_block options = nil Nokogiri::HTML(File.read(HTML_FILE), HTML_FILE) do |cfg| options = cfg options.nonet.nowarning.dtdattr end assert options.nonet? assert options.nowarning? assert options.dtdattr? end def test_parse_takes_config_block options = nil Nokogiri::HTML.parse(File.read(HTML_FILE), HTML_FILE) do |cfg| options = cfg options.nonet.nowarning.dtdattr end assert options.nonet? assert options.nowarning? assert options.dtdattr? end def test_subclass klass = Class.new(Nokogiri::HTML::Document) doc = klass.new assert_instance_of klass, doc end def test_subclass_initialize klass = Class.new(Nokogiri::HTML::Document) do attr_accessor :initialized_with def initialize(*args) @initialized_with = args end end doc = klass.new("uri", "external_id", 1) assert_equal ["uri", "external_id", 1], doc.initialized_with end def test_subclass_dup klass = Class.new(Nokogiri::HTML::Document) doc = klass.new.dup assert_instance_of klass, doc end def test_subclass_parse klass = Class.new(Nokogiri::HTML::Document) doc = klass.parse(File.read(HTML_FILE)) assert_equal @html.to_s, doc.to_s assert_instance_of klass, doc end def test_document_parse_method html = Nokogiri::HTML::Document.parse(File.read(HTML_FILE)) assert_equal @html.to_s, html.to_s end ### # Nokogiri::HTML returns an empty Document when given a blank string GH#11 def test_empty_string_returns_empty_doc doc = Nokogiri::HTML('') assert_instance_of Nokogiri::HTML::Document, doc assert_nil doc.root end unless Nokogiri.uses_libxml? && %w[2 6] === LIBXML_VERSION.split('.')[0..1] # FIXME: this is a hack around broken libxml versions def test_to_xhtml_with_indent doc = Nokogiri::HTML('foo') doc = Nokogiri::HTML(doc.to_xhtml(:indent => 2)) assert_indent 2, doc end def test_write_to_xhtml_with_indent io = StringIO.new doc = Nokogiri::HTML('foo') doc.write_xhtml_to io, :indent => 5 io.rewind doc = Nokogiri::HTML(io.read) assert_indent 5, doc end end def test_swap_should_not_exist assert_raises(NoMethodError) { @html.swap } end def test_namespace_should_not_exist assert_raises(NoMethodError) { @html.namespace } end def test_meta_encoding assert_equal 'UTF-8', @html.meta_encoding html = Nokogiri::HTML(<<-eohtml) foo eohtml assert_nil html.meta_encoding end def test_meta_encoding= @html.meta_encoding = 'EUC-JP' assert_equal 'EUC-JP', @html.meta_encoding end def test_title assert_equal 'Tender Lovemaking ', @html.title doc = Nokogiri::HTML('foo') assert_nil doc.title end def test_title=() doc = Nokogiri::HTML(< old foo eohtml doc.title = 'new' assert_equal 'new', doc.title doc = Nokogiri::HTML(< foo eohtml doc.title = 'new' assert_equal 'new', doc.title doc = Nokogiri::HTML(< foo eohtml doc.title = 'new' if Nokogiri.uses_libxml? assert_nil doc.title else assert_equal 'new', doc.title end end def test_meta_encoding_without_head html = Nokogiri::HTML('foo') assert_nil html.meta_encoding html.meta_encoding = 'EUC-JP' assert_nil html.meta_encoding end def test_meta_encoding_with_empty_content_type html = Nokogiri::HTML(<<-eohtml) foo eohtml assert_nil html.meta_encoding html = Nokogiri::HTML(<<-eohtml) foo eohtml assert_nil html.meta_encoding end def test_root_node_parent_is_document parent = @html.root.parent assert_equal @html, parent assert_instance_of Nokogiri::HTML::Document, parent end def test_parse_handles_nil_gracefully assert_nothing_raised do @doc = Nokogiri::HTML::Document.parse(nil) end assert_instance_of Nokogiri::HTML::Document, @doc end def test_parse_empty_document doc = Nokogiri::HTML("\n") assert_equal 0, doc.css('a').length assert_equal 0, doc.xpath('//a').length assert_equal 0, doc.search('//a').length end def test_HTML_function html = Nokogiri::HTML(File.read(HTML_FILE)) assert html.html? end def test_parse_io assert File.open(HTML_FILE, 'rb') { |f| Document.read_io(f, nil, 'UTF-8', XML::ParseOptions::NOERROR | XML::ParseOptions::NOWARNING ) } end def test_parse_temp_file temp_html_file = Tempfile.new("TEMP_HTML_FILE") File.open(HTML_FILE, 'rb') { |f| temp_html_file.write f.read } temp_html_file.close temp_html_file.open assert_equal Nokogiri::HTML.parse(File.read(HTML_FILE)).xpath('//div/a').length, Nokogiri::HTML.parse(temp_html_file).xpath('//div/a').length end def test_to_xhtml assert_match 'XHTML', @html.to_xhtml assert_match 'XHTML', @html.to_xhtml(:encoding => 'UTF-8') assert_match 'UTF-8', @html.to_xhtml(:encoding => 'UTF-8') end def test_no_xml_header html = Nokogiri::HTML(<<-eohtml) eohtml assert html.to_html.length > 0, 'html length is too short' assert_no_match(/^<\?xml/, html.to_html) end def test_document_has_error html = Nokogiri::HTML(<<-eohtml)
h1") found = @html.css("div[@id='header'] h1") # this blows up on commit 6fa0f6d329d9dbf1cc21c0ac72f7e627bb4c05fc assert_equal 1, found.length end def test_find_with_function assert @html.css("div:awesome() h1", Class.new { def awesome divs [divs.first] end }.new) end def test_dup_shallow found = @html.search('//div/a').first dup = found.dup(0) assert dup assert_equal '', dup.content end def test_search_can_handle_xpath_and_css found = @html.search('//div/a', 'div > p') length = @html.xpath('//div/a').length + @html.css('div > p').length assert_equal length, found.length end def test_dup_document assert dup = @html.dup assert_not_equal dup, @html assert @html.html? assert_instance_of Nokogiri::HTML::Document, dup assert dup.html?, 'duplicate should be html' assert_equal @html.to_s, dup.to_s end def test_dup_document_shallow assert dup = @html.dup(0) assert_not_equal dup, @html end def test_dup found = @html.search('//div/a').first dup = found.dup assert dup assert_equal found.content, dup.content assert_equal found.document, dup.document end def test_inner_html html = Nokogiri::HTML(<<-eohtml)

Hello world!

eohtml node = html.xpath('//div').first assert_equal('

Helloworld!

', node.inner_html.gsub(/\s/, '')) end def test_round_trip doc = Nokogiri::HTML(@html.inner_html) assert_equal @html.root.to_html, doc.root.to_html end def test_fragment_contains_text_node fragment = Nokogiri::HTML.fragment('fooo') assert_equal 1, fragment.children.length assert_equal 'fooo', fragment.inner_text end def test_fragment_includes_two_tags assert_equal 2, Nokogiri::HTML.fragment("
").children.length end def test_relative_css_finder doc = Nokogiri::HTML(<<-eohtml)

inside red

inside green

eohtml red_divs = doc.css('div.red') assert_equal 1, red_divs.length p_tags = red_divs.first.css('p') assert_equal 1, p_tags.length assert_equal 'inside red', p_tags.first.text.strip end def test_find_classes doc = Nokogiri::HTML(<<-eohtml)

RED

RED

GREEN

GREEN

eohtml list = doc.css('.red') assert_equal 2, list.length assert_equal %w{ RED RED }, list.map { |x| x.text } end def test_parse_can_take_io html = nil File.open(HTML_FILE, 'rb') { |f| html = Nokogiri::HTML(f) } assert html.html? end def test_html? assert !@html.xml? assert @html.html? end def test_serialize assert @html.serialize assert @html.to_html end end end end