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# frozen_string_literal: true
require "helper"
module Nokogiri
module HTML
class TestDocument < Nokogiri::TestCase
let(:html) { Nokogiri::HTML.parse(File.read(HTML_FILE)) }
def test_nil_css
# Behavior is undefined but shouldn't break
assert(html.css(nil))
assert(html.xpath(nil))
end
def test_does_not_fail_with_illformatted_html
doc = Nokogiri::HTML('"</html>";'.dup.force_encoding(Encoding::BINARY))
assert_not_nil(doc)
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
def test_document_parse_method_with_url
doc = Nokogiri::HTML("<html></html>", "http://foobar.example.com/", "UTF-8")
refute_empty(doc.to_s, "Document should not be empty")
assert_equal("http://foobar.example.com/", doc.url)
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?("~> 2.6.0")
def test_to_xhtml_with_indent
doc = Nokogiri::HTML("<html><body><a>foo</a></body></html>")
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("<html><body><a>foo</a></body></html>")
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) do
html.swap
end
end
def test_namespace_should_not_exist
assert_raises(NoMethodError) do
html.namespace
end
end
def test_meta_encoding
assert_equal("UTF-8", html.meta_encoding)
end
def test_meta_encoding_is_strict_about_http_equiv
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta http-equiv="X-Content-Type" content="text/html; charset=Shift_JIS">
</head>
<body>
foo
</body>
</html>
EOHTML
assert_nil(doc.meta_encoding)
end
def test_meta_encoding_handles_malformed_content_charset
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta http-equiv="Content-type" content="text/html; utf-8" />
</head>
<body>
foo
</body>
</html>
EOHTML
assert_nil(doc.meta_encoding)
end
def test_meta_encoding_checks_charset
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
foo
</body>
</html>
EOHTML
assert_equal("UTF-8", doc.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("<html><body>foo</body></html>")
assert_nil(doc.title)
end
def test_title=
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<title>old</title>
</head>
<body>
foo
</body>
</html>
EOHTML
doc.title = "new"
assert_equal(1, doc.css("title").size)
assert_equal("new", doc.title)
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
foo
</body>
</html>
EOHTML
doc.title = "new"
assert_equal("new", doc.title)
title = doc.at("/html/head/title")
assert_not_nil(title)
assert_equal("new", title.text)
assert_equal(-1, doc.at("meta[@http-equiv]") <=> title)
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
foo
</body>
</html>
EOHTML
doc.title = "new"
assert_equal("new", doc.title)
# <head> may or may not be added
title = doc.at("/html//title")
assert_not_nil(title)
assert_equal("new", title.text)
assert_equal(-1, title <=> doc.at("body"))
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<meta charset="UTF-8">
<body>
foo
</body>
</html>
EOHTML
doc.title = "new"
assert_equal("new", doc.title)
assert_equal(-1, doc.at("meta[@charset]") <=> doc.at("title"))
assert_equal(-1, doc.at("title") <=> doc.at("body"))
doc = Nokogiri::HTML("<!DOCTYPE html><p>hello")
doc.title = "new"
assert_equal("new", doc.title)
assert_instance_of(Nokogiri::XML::DTD, doc.children.first)
assert_equal(-1, doc.at("title") <=> doc.at("p"))
doc = Nokogiri::HTML("")
doc.title = "new"
assert_equal("new", doc.title)
assert_equal("new", doc.at("/html/head/title/text()").to_s)
end
def test_meta_encoding_without_head
encoding = "EUC-JP"
html = Nokogiri::HTML("<html><body>foo</body></html>", nil, encoding)
assert_nil(html.meta_encoding)
html.meta_encoding = encoding
assert_equal(encoding, html.meta_encoding)
meta = html.at("/html/head/meta[@http-equiv and boolean(@content)]")
assert(meta, "meta is in head")
assert(meta.at("./parent::head/following-sibling::body"), "meta is before body")
end
def test_html5_meta_encoding_without_head
encoding = "EUC-JP"
html = Nokogiri::HTML("<!DOCTYPE html><html><body>foo</body></html>", nil, encoding)
assert_nil(html.meta_encoding)
html.meta_encoding = encoding
assert_equal(encoding, html.meta_encoding)
meta = html.at("/html/head/meta[@charset]")
assert(meta, "meta is in head")
assert(meta.at("./parent::head/following-sibling::body"), "meta is before body")
end
def test_meta_encoding_with_empty_content_type
html = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta http-equiv="Content-Type" content="">
</head>
<body>
foo
</body>
</html>
EOHTML
assert_nil(html.meta_encoding)
html = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<meta http-equiv="Content-Type">
</head>
<body>
foo
</body>
</html>
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
@doc = Nokogiri::HTML::Document.parse(nil)
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_works_with_an_object_that_responds_to_read
klass = Class.new do
def initialize
@contents = StringIO.new("<div>foo</div>")
end
def read(*args)
@contents.read(*args)
end
end
doc = Nokogiri::HTML.parse(klass.new)
assert_equal("foo", doc.at_css("div").content)
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)
<html>
</html>
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)
<html>
<body>
<div awesome="asdf>
<p>inside div tag</p>
</div>
<p>outside div tag</p>
</body>
</html>
EOHTML
assert(html.errors.length > 0)
end
def test_relative_css
html = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
<div>
<p>inside div tag</p>
</div>
<p>outside div tag</p>
</body>
</html>
EOHTML
set = html.search("div").search("p")
assert_equal(1, set.length)
assert_equal("inside div tag", set.first.inner_text)
end
def test_multi_css
html = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
<div>
<p>p tag</p>
<a>a tag</a>
</div>
</body>
</html>
EOHTML
set = html.css("p, a")
assert_equal(2, set.length)
assert_equal(["a tag", "p tag"].sort, set.map(&:content).sort)
end
def test_inner_text
html = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
<div>
<p>
Hello world!
</p>
</div>
</body>
</html>
EOHTML
node = html.xpath("//div").first
assert_equal("Hello world!", node.inner_text.strip)
end
def test_doc_type
html = Nokogiri::HTML(<<~EOHTML)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<p>Rainbow Dash</p>
</body>
</html>
EOHTML
assert_equal("html", html.internal_subset.name)
assert_equal("-//W3C//DTD XHTML 1.1//EN", html.internal_subset.external_id)
assert_equal("http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd", html.internal_subset.system_id)
assert_equal("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">", html.to_s[0, 97])
end
def test_content_size
html = Nokogiri::HTML("<div>\n</div>")
assert_equal(1, html.content.size)
assert_equal(1, html.content.split("").size)
assert_equal("\n", html.content)
end
def test_find_by_xpath
found = html.xpath("//div/a")
assert_equal(3, found.length)
end
def test_find_by_css
found = html.css("div > a")
assert_equal(3, found.length)
end
def test_find_by_css_with_square_brackets
found = html.css("div[@id='header'] > h1")
found = html.css("div[@id='header'] h1") # this blows up on commit 6fa0f6d329d9dbf1cc21c0ac72f7e627bb4c05fc
assert_equal(1, found.length)
end
def test_find_by_css_with_escaped_characters
found_without_escape = html.css("div[@id='abc.123']")
found_by_id = html.css('#abc\.123')
found_by_class = html.css('.special\.character')
assert_equal(1, found_without_escape.length)
assert_equal(found_by_id, found_without_escape)
assert_equal(found_by_class, found_without_escape)
end
def test_find_with_function
assert(html.css("div:awesome() h1", Class.new do
def awesome(divs)
[divs.first]
end
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
# issue 1060
def test_node_ownership_after_dup
html = "<html><head></head><body><div>replace me</div></body></html>"
doc = Nokogiri::HTML::Document.parse(html)
dup = doc.dup
assert_same(dup, dup.at_css("div").document)
# should not raise an exception
dup.at_css("div").parse("<div>replaced</div>")
end
def test_inner_html
html = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
<div>
<p>
Hello world!
</p>
</div>
</body>
</html>
EOHTML
node = html.xpath("//div").first
assert_equal("<p>Helloworld!</p>", 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("<br/><hr/>").children.length)
end
def test_relative_css_finder
doc = Nokogiri::HTML(<<~EOHTML)
<html>
<body>
<div class="red">
<p>
inside red
</p>
</div>
<div class="green">
<p>
inside green
</p>
</div>
</body>
</html>
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)
<html>
<body>
<p class="red">RED</p>
<p class="awesome red">RED</p>
<p class="notred">GREEN</p>
<p class="green notred">GREEN</p>
</body>
</html>
EOHTML
list = doc.css(".red")
assert_equal(2, list.length)
assert_equal(%w{RED RED}, list.map(&:text))
end
def test_parse_can_take_io
html = nil
File.open(HTML_FILE, "rb") do |f|
html = Nokogiri::HTML(f)
end
assert(html.html?)
assert_equal(HTML_FILE, html.url)
end
def test_parse_works_with_an_object_that_responds_to_path
html = String.new("<html><body>hello</body></html>")
def html.path
"/i/should/be/the/document/url"
end
doc = Nokogiri::HTML.parse(html)
assert_equal("/i/should/be/the/document/url", doc.url)
end
# issue #1821, #2110
def test_parse_can_take_pathnames
assert(File.size(HTML_FILE) > 4096) # file must be big enough to trip the read callback more than once
doc = Nokogiri::HTML.parse(Pathname.new(HTML_FILE))
# an arbitrary assertion on the structure of the document
assert_equal(166, doc.css("a").length)
assert_equal(HTML_FILE, doc.url)
end
def test_html?
assert(!html.xml?)
assert(html.html?)
end
def test_serialize
assert(html.serialize)
assert(html.to_html)
end
def test_empty_document
# empty document should return "" #699
assert_equal("", Nokogiri::HTML.parse(nil).text)
assert_equal("", Nokogiri::HTML.parse("").text)
end
def test_capturing_nonparse_errors_during_document_clone
# see https://github.com/sparklemotion/nokogiri/issues/1196 for background
original = Nokogiri::HTML.parse("<div id='unique'></div><div id='unique'></div>")
original_errors = original.errors.dup
copy = original.dup
assert_equal(original_errors, copy.errors)
end
def test_capturing_nonparse_errors_during_node_copy_between_docs
# Errors should be emitted while parsing only, and should not change when moving nodes.
doc1 = Nokogiri::HTML("<html><body><diva id='unique'>one</diva></body></html>")
doc2 = Nokogiri::HTML("<html><body><dive id='unique'>two</dive></body></html>")
node1 = doc1.at_css("#unique")
node2 = doc2.at_css("#unique")
original_errors1 = doc1.errors.dup
original_errors2 = doc2.errors.dup
assert(original_errors1.any? { |e| e.to_s =~ /Tag diva invalid/ }, "it should complain about the tag name")
assert(original_errors2.any? { |e| e.to_s =~ /Tag dive invalid/ }, "it should complain about the tag name")
node1.add_child(node2)
assert_equal(original_errors1, doc1.errors)
assert_equal(original_errors2, doc2.errors)
end
def test_silencing_nonparse_errors_during_attribute_insertion_1262
# see https://github.com/sparklemotion/nokogiri/issues/1262
#
# libxml2 emits a warning when this happens; the JRuby
# implementation does not. so rather than capture the error in
# doc.errors in a platform-dependent way, I'm opting to have
# the error silenced.
#
# So this test doesn't look meaningful, but we want to avoid
# having `ID unique-issue-1262 already defined` emitted to
# stderr when running the test suite.
#
doc = Nokogiri::HTML::Document.new
Nokogiri::XML::Element.new("div", doc).set_attribute("id", "unique-issue-1262")
Nokogiri::XML::Element.new("div", doc).set_attribute("id", "unique-issue-1262")
assert_equal(0, doc.errors.length)
end
it "skips encoding for script tags" do
html = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<script>var isGreater = 4 > 5;</script>
</head>
<body></body>
</html>
EOHTML
node = html.xpath("//script").first
assert_equal("var isGreater = 4 > 5;", node.inner_html)
end
it "skips encoding for style tags" do
html = Nokogiri::HTML(<<~EOHTML)
<html>
<head>
<style>tr > div { display:block; }</style>
</head>
<body></body>
</html>
EOHTML
node = html.xpath("//style").first
assert_equal("tr > div { display:block; }", node.inner_html)
end
it "does not fail when converting to_html using explicit encoding" do
html_fragment = <<~EOHTML
<img width="16" height="16" src="images/icon.gif" border="0" alt="Inactive hide details for "User" ---19/05/2015 12:55:29---Provvediamo subito nell’integrare">
EOHTML
doc = Nokogiri::HTML(html_fragment, nil, "ISO-8859-1")
html = doc.to_html
assert html.index("src=\"images/icon.gif\"")
assert_equal "ISO-8859-1", html.encoding.name
end
def test_leaking_dtd_nodes_after_internal_subset_removal
# see https://github.com/sparklemotion/nokogiri/issues/1784
#
# just checking that this doesn't raise a valgrind error. we
# don't otherwise have any test coverage for removing DTDs.
#
100.times do |i|
Nokogiri::HTML::Document.new.internal_subset.remove
end
end
describe "HTML::Document.parse" do
let(:html_strict) do
Nokogiri::XML::ParseOptions.new(Nokogiri::XML::ParseOptions::DEFAULT_HTML).norecover
end
it "sets the test up correctly" do
assert(html_strict.strict?)
end
describe "read memory" do
let(:input) { "<html><body><div" }
describe "strict parsing" do
let(:parse_options) { html_strict }
it "raises exception on parse error" do
exception = assert_raises Nokogiri::SyntaxError do
Nokogiri::HTML.parse(input, nil, nil, parse_options)
end
assert_match(/Parser without recover option encountered error or warning/, exception.to_s)
end
end
describe "default options" do
it "does not raise exception on parse error" do
doc = Nokogiri::HTML.parse(input)
assert_operator(doc.errors.length, :>, 0)
end
end
end
describe "read io" do
let(:input) { StringIO.new("<html><body><div") }
describe "strict parsing" do
let(:parse_options) { html_strict }
it "raises exception on parse error" do
exception = assert_raises Nokogiri::SyntaxError do
Nokogiri::HTML.parse(input, nil, "UTF-8", parse_options)
end
assert_match(/Parser without recover option encountered error or warning/, exception.to_s)
end
end
describe "default options" do
it "does not raise exception on parse error" do
doc = Nokogiri::HTML.parse(input, nil, "UTF-8")
assert_operator(doc.errors.length, :>, 0)
end
end
end
end
end
end
end
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