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test_nokogumbo.rb
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test_nokogumbo.rb
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# encoding: utf-8
require 'nokogumbo'
require 'minitest/autorun'
class TestNokogumbo < Minitest::Test
def test_element_text
doc = Nokogiri::HTML5(buffer)
assert_equal "content", doc.at('span').text
end
def test_element_cdata_textarea
doc = Nokogiri::HTML5(buffer)
assert_equal "foo<x>bar", doc.at('textarea').text.strip
end
def test_element_cdata_script
doc = Nokogiri::HTML5.fragment(buffer)
assert_equal true, doc.document.html?
assert_equal "<script> if (a < b) alert(1) </script>", doc.at('script').to_s
end
def test_attr_value
doc = Nokogiri::HTML5(buffer)
assert_equal "utf-8", doc.at('meta')['charset']
end
def test_comment
doc = Nokogiri::HTML5(buffer)
assert_equal " test comment ", doc.xpath('//comment()').text
end
def test_unknown_element
doc = Nokogiri::HTML5(buffer)
assert_equal "main", doc.at('main').name
end
def test_IO
require 'stringio'
doc = Nokogiri::HTML5(StringIO.new(buffer))
assert_equal 'textarea', doc.at('form').element_children.first.name
end
def test_nil
doc = Nokogiri::HTML5(nil)
assert_equal 1, doc.search('body').count
end
def test_html5_doctype
doc = Nokogiri::HTML5.parse("<!DOCTYPE html><html></html>")
assert_match(/<!DOCTYPE html>/, doc.to_html)
end
def test_fragment_no_errors
doc = Nokogiri::HTML5.fragment("no missing DOCTYPE errors", max_errors: 10)
assert_equal 0, doc.errors.length
end
# This should be deleted when `:max_parse_errors` is removed.
def test_fragment_max_parse_errors
doc = Nokogiri::HTML5.fragment("testing deprecated :max_parse_errors", max_parse_errors: 10)
assert_equal 0, doc.errors.length
end
def test_fragment_head
doc = Nokogiri::HTML5.fragment(buffer[/<head>(.*?)<\/head>/m, 1])
assert_equal "hello world", doc.xpath('title').text
assert_equal "utf-8", doc.xpath('meta').first['charset']
end
def test_fragment_body
doc = Nokogiri::HTML5.fragment(buffer[/<body>(.*?)<\/body>/m, 1])
assert_equal '<span>content</span>', doc.xpath('main/span').to_xml
assert_equal " test comment ", doc.xpath('comment()').text
end
def test_xlink_attribute
source = <<-EOF.gsub(/^ {6}/, '')
<!DOCTYPE html>
<svg xmlns="http://www.w3.org/2000/svg">
<a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#s1"/>
</svg>
EOF
doc = Nokogiri::HTML5.parse(source)
a = doc.at_xpath('/html/body/svg:svg/svg:a')
refute_nil a
refute_nil a['xlink:href']
refute_nil a['xmlns:xlink']
end
def test_xlink_attribute_fragment
source = <<-EOF.gsub(/^ {6}/, '')
<svg xmlns="http://www.w3.org/2000/svg">
<a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#s1"/>
</svg>
EOF
doc = Nokogiri::HTML5.fragment(source)
a = doc.at_xpath('svg:svg/svg:a')
refute_nil a
refute_nil a['xlink:href']
refute_nil a['xmlns:xlink']
end
def test_template
source = <<-EOF.gsub(/^ {6}/, '')
<template id="productrow">
<tr>
<td class="record"></td>
<td></td>
</tr>
</template>
EOF
doc = Nokogiri::HTML5.fragment(source)
template = doc.at('template')
assert_equal "productrow", template['id']
assert_equal "record", template.at('td')['class']
end
def test_root_comments
doc = Nokogiri::HTML5("<!DOCTYPE html><!-- start --><html></html><!-- -->")
assert_equal ["html", "comment", "html", "comment"], doc.children.map(&:name)
end
def test_parse_errors
doc = Nokogiri::HTML5("<!DOCTYPE html><html><!-- -- --></a>", max_errors: 10)
assert_equal doc.errors.length, 2
doc = Nokogiri::HTML5("<!DOCTYPE html><html>", max_errors: 10)
assert_empty doc.errors
end
def test_max_errors
# This document contains 2 parse errors, but we force limit to 1.
doc = Nokogiri::HTML5("<!DOCTYPE html><html><!-- -- --></a>", max_errors: 1)
assert_equal 1, doc.errors.length
doc = Nokogiri::HTML5("<!DOCTYPE html><html>", max_errors: 1)
assert_empty doc.errors
end
def test_default_max_errors
# This document contains 200 parse errors, but default limit is 0.
doc = Nokogiri::HTML5("<!DOCTYPE html><html>" + "</p>" * 200)
assert_equal 0, doc.errors.length
end
def test_parse_fragment_errors
doc = Nokogiri::HTML5.fragment("<\r\n", max_errors: 10)
refute_empty doc.errors
end
def test_fragment_max_errors
# This fragment contains 3 parse errors, but we force limit to 1.
doc = Nokogiri::HTML5.fragment("<!-- -- --></a>", max_errors: 1)
assert_equal 1, doc.errors.length
end
def test_fragment_default_max_errors
# This fragment contains 200 parse errors, but default limit is 0.
doc = Nokogiri::HTML5.fragment("</p>" * 200)
assert_equal 0, Nokogumbo::DEFAULT_MAX_ERRORS
assert_equal 0, doc.errors.length
end
def test_default_max_depth_parse
assert_raises ArgumentError do
depth = Nokogumbo::DEFAULT_MAX_TREE_DEPTH + 1
Nokogiri::HTML5('<!DOCTYPE html><html><body>' + '<div>' * (depth - 2))
end
end
def test_default_max_depth_fragment
assert_raises ArgumentError do
depth = Nokogumbo::DEFAULT_MAX_TREE_DEPTH + 1
Nokogiri::HTML5.fragment('<div>' * depth)
end
end
def test_max_depth_parse
depth = 10
html = '<!DOCTYPE html><html><body>' + '<div>' * (depth - 2)
assert_raises ArgumentError do
Nokogiri::HTML5(html, max_tree_depth: depth - 1)
end
begin
Nokogiri::HTML5(html, max_tree_depth: depth)
pass
rescue ArgumentError
flunk "Expected document parse to succeed"
end
end
def test_max_depth_fragment
depth = 10
html = '<div>' * depth
assert_raises ArgumentError do
Nokogiri::HTML5.fragment(html, max_tree_depth: depth - 1)
end
begin
Nokogiri::HTML5.fragment(html, max_tree_depth: depth)
pass
rescue ArgumentError
flunk "Expected fragment parse to succeed"
end
end
def test_document_encoding
html = <<-TEXT
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
Кирилические символы
</body>
</html>
TEXT
doc = Nokogiri::HTML5.parse(html)
assert_equal "UTF-8", doc.encoding
assert_equal "Кирилические символы", doc.at('body').text.gsub(/\n\s+/,'')
end
def test_line_numbers
doc = Nokogiri::HTML5(buffer)
assert_includes [0, 8], doc.at('h1').line
assert_includes [0, 10], doc.at('span').line
end
private
def buffer
<<-EOF.gsub(/^ /, '')
<html>
<head>
<meta charset="utf-8"/>
<title>hello world</title>
<script> if (a < b) alert(1) </script>
</head>
<body>
<h1>hello world</h1>
<main>
<span>content</span>
</main>
<!-- test comment -->
<form>
<textarea>foo<x>bar</textarea>
</form>
</body>
</html>
EOF
end
end