import unittest, sys
from lxml.tests.common_imports import make_doctest
from lxml.etree import LIBXML_VERSION
import lxml.html
from lxml.html.clean import Cleaner, clean_html
class CleanerTest(unittest.TestCase):
def test_allow_tags(self):
html = """
some text
![]()
"""
html_root = lxml.html.document_fromstring(html)
cleaner = Cleaner(
remove_unknown_tags = False,
allow_tags = ['table', 'tr', 'td'])
result = cleaner.clean_html(html_root)
self.assertEqual(12-5+1, len(list(result.iter())))
def test_safe_attrs_included(self):
html = """Cyan
"""
safe_attrs=set(lxml.html.defs.safe_attrs)
safe_attrs.add('style')
cleaner = Cleaner(
safe_attrs_only=True,
safe_attrs=safe_attrs)
result = cleaner.clean_html(html)
self.assertEqual(html, result)
def test_safe_attrs_excluded(self):
html = """Cyan
"""
expected = """Cyan
"""
safe_attrs=set()
cleaner = Cleaner(
safe_attrs_only=True,
safe_attrs=safe_attrs)
result = cleaner.clean_html(html)
self.assertEqual(expected, result)
def test_clean_invalid_root_tag(self):
# only testing that cleaning with invalid root tags works at all
s = lxml.html.fromstring('parent child')
self.assertEqual('parent child', clean_html(s).text_content())
s = lxml.html.fromstring('child')
self.assertEqual('child', clean_html(s).text_content())
def test_suite():
suite = unittest.TestSuite()
if sys.version_info >= (2,4):
suite.addTests([make_doctest('test_clean.txt')])
if LIBXML_VERSION >= (2,6,31):
suite.addTests([make_doctest('test_clean_embed.txt')])
suite.addTests(unittest.makeSuite(CleanerTest))
return suite