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"""
Selectors tests, specific for lxml backend
"""
from scrapy.http import TextResponse, XmlResponse
has_lxml = True
try:
from scrapy.selector.lxmlsel import XmlXPathSelector, HtmlXPathSelector, \
XPathSelector
except ImportError:
has_lxml = False
from scrapy.utils.test import libxml2debug
from scrapy.tests import test_selector
class LxmlXPathSelectorTestCase(test_selector.XPathSelectorTestCase):
if has_lxml:
xs_cls = XPathSelector
hxs_cls = HtmlXPathSelector
xxs_cls = XmlXPathSelector
else:
skip = "lxml not available"
# XXX: this test was disabled because lxml behaves inconsistently when
# handling null bytes between different 2.2.x versions, but it may be due
# to differences in libxml2 too. it's also unclear what should be the
# proper behaviour (pablo - 26 oct 2010)
#@libxml2debug
#def test_null_bytes(self):
# hxs = HtmlXPathSelector(text='<root>la\x00la</root>')
# self.assertEqual(hxs.extract(),
# u'<html><body><root>la</root></body></html>')
#
# xxs = XmlXPathSelector(text='<root>la\x00la</root>')
# self.assertEqual(xxs.extract(),
# u'<root>la</root>')
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