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# -*- coding: utf-8 -*-
"""
Tests that ElementMaker works properly.
"""
from __future__ import absolute_import
import unittest
from lxml import etree
from lxml.builder import E, ElementMaker
from lxml.html.builder import E as HE
from .common_imports import HelperTestCase, _bytes
class BuilderTestCase(HelperTestCase):
etree = etree
def test_build_from_xpath_result(self):
class StringSubclass(str): pass
wrapped = E.b(StringSubclass('Hello'))
self.assertEqual(_bytes('<b>Hello</b>'), etree.tostring(wrapped))
def test_unknown_type_raises(self):
class UnknownType(object):
pass
self.assertRaises(TypeError, E.b, UnknownType())
def test_cdata(self):
wrapped = E.b(etree.CDATA('Hello'))
self.assertEqual(_bytes('<b><![CDATA[Hello]]></b>'), etree.tostring(wrapped))
def test_cdata_solo(self):
self.assertRaises(ValueError, E.b, 'Hello', etree.CDATA('World'))
def test_html_builder(self):
html = HE.html(
HE.head(HE.title("H-T-M-L!")),
HE.body(HE.p("TexT"))
)
self.assertEqual("TexT", html.findtext(".//p"))
def test_qname_tag(self):
p = E(etree.QName("http://lxml.de/nsp", "p"), "xyz")
self.assertEqual(p.tag, "{http://lxml.de/nsp}p")
def test_qname_tag_default_namespace(self):
em = ElementMaker(namespace="http://python.org")
p = em(etree.QName("http://lxml.de/nsp", "p"), "xyz")
self.assertEqual(p.tag, "{http://lxml.de/nsp}p")
p = em("{http://lxml.de/nsp}p", "xyz")
self.assertEqual(p.tag, "{http://lxml.de/nsp}p")
# safety check
p = em("p", "xyz")
self.assertEqual(p.tag, "{http://python.org}p")
def test_suite():
suite = unittest.TestSuite()
suite.addTests([unittest.makeSuite(BuilderTestCase)])
return suite
if __name__ == '__main__':
print('to test use test.py %s' % __file__)
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