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import sys
import unittest
from lxml.tests.common_imports import make_doctest, doctest
from lxml import html
class TestBasicFeatures(unittest.TestCase):
def test_various_mixins(self):
base_url = "http://example.org"
doc = html.fromstring("""
<root>
<!-- comment -->
<?pi contents ?>
&entity;
<el/>
</root>
""", base_url=base_url)
self.assertEqual(doc.getroottree().docinfo.URL, base_url)
self.assertEqual(len(doc), 3)
self.assertIsInstance(doc[0], html.HtmlComment)
self.assertIsInstance(doc[1], html.HtmlProcessingInstruction)
self.assertIsInstance(doc[2], html.HtmlElement)
for child in doc:
# base_url makes sense on all nodes (kinda) whereas `classes` or
# `get_rel_links` not really
self.assertEqual(child.base_url, base_url)
def test_set_empty_attribute(self):
e = html.Element('e')
e.set('a')
e.set('b', None)
e.set('c', '')
self.assertEqual(
html.tostring(e),
b'<e a b c=""></e>',
"Attributes set to `None` should yield empty attributes"
)
self.assertEqual(e.get('a'), '', "getting the empty attribute results in an empty string")
self.assertEqual(e.attrib, {
'a': '',
'b': '',
'c': '',
})
def test_suite():
suite = unittest.TestSuite()
suite.addTests([make_doctest('test_basic.txt')])
suite.addTests([doctest.DocTestSuite(html)])
suite.addTest(unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]))
return suite
if __name__ == '__main__':
unittest.main()
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