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# -*- coding: utf-8 -*-
# frozen_string_literal: true
require "helper"
class TestNokogiriHtmlDocument < Nokogiri::TestCase
describe "Nokogiri::HTML::Document" do
describe "Encoding" do
def test_encoding
doc = Nokogiri::HTML(File.open(SHIFT_JIS_HTML, 'rb'))
hello = "こんにちは"
assert_match(doc.encoding, doc.to_html)
assert_match(hello.encode('Shift_JIS'), doc.to_html)
assert_equal('Shift_JIS', doc.to_html.encoding.name)
assert_match(hello, doc.to_html(encoding: 'UTF-8'))
assert_match('UTF-8', doc.to_html(encoding: 'UTF-8'))
assert_match('UTF-8', doc.to_html(encoding: 'UTF-8').encoding.name)
end
def test_encoding_without_charset
doc = Nokogiri::HTML(File.open(SHIFT_JIS_NO_CHARSET, 'r:Shift_JIS:Shift_JIS').read)
hello = "こんにちは"
assert_match(hello, doc.content)
assert_match(hello, doc.to_html(encoding: 'UTF-8'))
assert_match('UTF-8', doc.to_html(encoding: 'UTF-8').encoding.name)
end
def test_default_to_encoding_from_string
bad_charset = <<~eohtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=charset=UTF-8">
</head>
<body>
<a href="http://tenderlovemaking.com/">blah!</a>
</body>
</html>
eohtml
doc = Nokogiri::HTML(bad_charset)
assert_equal(bad_charset.encoding.name, doc.encoding)
doc = Nokogiri.parse(bad_charset)
assert_equal(bad_charset.encoding.name, doc.encoding)
end
def test_encoding_non_utf8
orig = '日本語が上手です'
bin = Encoding::ASCII_8BIT
[Encoding::Shift_JIS, Encoding::EUC_JP].each do |enc|
html = <<~eohtml.encode(enc)
<html>
<meta http-equiv="Content-Type" content="text/html; charset=#{enc.name}">
<title xml:lang="ja">#{orig}</title></html>
eohtml
text = Nokogiri::HTML.parse(html).at('title').inner_text
assert_equal(
orig.encode(enc).force_encoding(bin),
text.encode(enc).force_encoding(bin)
)
end
end
def test_encoding_with_a_bad_name
bad_charset = <<~eohtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=charset=UTF-8">
</head>
<body>
<a href="http://tenderlovemaking.com/">blah!</a>
</body>
</html>
eohtml
doc = Nokogiri::HTML(bad_charset, nil, 'askldjfhalsdfjhlkasdfjh')
assert_equal(['http://tenderlovemaking.com/'],
doc.css('a').map { |a| a['href'] })
end
def test_empty_doc_encoding
encoding = 'US-ASCII'
assert_equal(encoding, Nokogiri::HTML.parse(nil, nil, encoding).encoding)
end
describe "Detection" do
def binread(file)
IO.binread(file)
end
def binopen(file)
File.open(file, 'rb')
end
it "handles both memory and IO" do
from_stream = Nokogiri::HTML(binopen(NOENCODING_FILE))
from_string = Nokogiri::HTML(binread(NOENCODING_FILE))
assert_equal(from_string.to_s.size, from_stream.to_s.size)
assert_operator(from_string.to_s.size, :>, 0)
end
it "uses meta charset encoding when present" do
html = Nokogiri::HTML(binopen(METACHARSET_FILE))
assert_equal('iso-2022-jp', html.encoding)
assert_equal('たこ焼き仮面', html.title)
end
{"xhtml" => ENCODING_XHTML_FILE, "html" => ENCODING_HTML_FILE}.each do |flavor, file|
it "detects #{flavor} document encoding" do
doc_from_string_enc = Nokogiri::HTML(binread(file), nil, 'Shift_JIS')
ary_from_string_enc = doc_from_string_enc.xpath('//p/text()').map(&:text)
doc_from_string = Nokogiri::HTML(binread(file))
ary_from_string = doc_from_string.xpath('//p/text()').map(&:text)
doc_from_file_enc = Nokogiri::HTML(binopen(file), nil, 'Shift_JIS')
ary_from_file_enc = doc_from_file_enc.xpath('//p/text()').map(&:text)
doc_from_file = Nokogiri::HTML(binopen(file))
ary_from_file = doc_from_file.xpath('//p/text()').map(&:text)
title = 'たこ焼き仮面'
assert_equal(title, doc_from_string_enc.at('//title/text()').text)
assert_equal(title, doc_from_string.at('//title/text()').text)
assert_equal(title, doc_from_file_enc.at('//title/text()').text)
assert_equal(title, doc_from_file.at('//title/text()').text)
evil = (0..72).map { |i| '超' * i + '悪い事を構想中。' }
assert_equal(evil, ary_from_string_enc)
assert_equal(evil, ary_from_string)
next unless !Nokogiri.uses_libxml? || Nokogiri::VersionInfo.instance.libxml2_has_iconv?
# libxml2 without iconv does not pass this test
assert_equal(evil, ary_from_file_enc)
assert_equal(evil, ary_from_file)
end
end
describe "error handling" do
RAW = "<html><body><div"
{"read_memory" => RAW, "read_io" => StringIO.new(RAW)}.each do |flavor, input|
it "#{flavor} should handle errors" do
doc = Nokogiri::HTML.parse(input)
assert_operator(doc.errors.length, :>, 0)
end
end
end
end
end
end
end
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