# encoding: UTF-8
require './test_helper'
require 'stringio'
require 'test/unit'
class HTMLParserTest < Test::Unit::TestCase
def html_file
File.expand_path(File.join(File.dirname(__FILE__), 'model/ruby-lang.html'))
end
# ----- Sources ------
def test_file
xp = XML::HTMLParser.file(html_file)
assert_instance_of(XML::HTMLParser, xp)
doc = xp.parse
assert_not_nil(doc)
end
def test_noexistent_file
error = assert_raise(XML::Error) do
XML::HTMLParser.file('i_dont_exist.xml')
end
assert_equal('Warning: failed to load external entity "i_dont_exist.xml".', error.to_s)
end
def test_nil_file
error = assert_raise(TypeError) do
XML::HTMLParser.file(nil)
end
assert_equal("can't convert nil into String", error.to_s)
end
def test_io
File.open(html_file) do |io|
xp = XML::HTMLParser.io(io)
assert_instance_of(XML::HTMLParser, xp)
doc = xp.parse
assert_instance_of(XML::Document, doc)
end
end
def test_io_gc
# Test that the reader keeps a reference
# to the io object
file = File.open(html_file)
parser = XML::HTMLParser.io(file)
file = nil
GC.start
assert(parser.parse)
end
def test_nil_io
error = assert_raise(TypeError) do
XML::HTMLParser.io(nil)
end
assert_equal("Must pass in an IO object", error.to_s)
end
def test_string_io
data = File.read(html_file)
io = StringIO.new(data)
xp = XML::HTMLParser.io(io)
assert_instance_of(XML::HTMLParser, xp)
doc = xp.parse
assert_instance_of(XML::Document, doc)
end
def test_string
str = 'hi
'
xp = XML::HTMLParser.string(str)
assert_instance_of(XML::HTMLParser, xp)
assert_instance_of(XML::HTMLParser, xp)
doc = xp.parse
assert_instance_of(XML::Document, doc)
end
def test_nil_string
error = assert_raise(TypeError) do
XML::HTMLParser.string(nil)
end
assert_equal("wrong argument type nil (expected String)", error.to_s)
end
def test_parse
html = <<-EOS
Hello
World
EOS
parser = XML::HTMLParser.string(html)
doc = parser.parse
assert_instance_of XML::Document, doc
root = doc.root
assert_instance_of XML::Node, root
assert_equal 'html', root.name
head = root.child
assert_instance_of XML::Node, head
assert_equal 'head', head.name
meta = head.child
assert_instance_of XML::Node, meta
assert_equal 'meta', meta.name
assert_equal 'keywords', meta[:name]
assert_equal 'nasty', meta[:content]
body = head.next
assert_instance_of XML::Node, body
assert_equal 'body', body.name
hello = body.child
# It appears that some versions of libxml2 add a layer of
# cant figure our why or how, so this skips it if there
hello = hello.child if hello.name == "p"
assert_instance_of XML::Node, hello
assert_equal 'Hello', hello.content
br = hello.next
assert_instance_of XML::Node, br
assert_equal 'br', br.name
world = br.next
assert_instance_of XML::Node, world
assert_equal 'World', world.content
end
end