Method test_extend_mutable_list

Lib/test/test_xml_etree.py:2809–2826

(self)

class BadElementTest(ElementTestCase, unittest.TestCase):

    def test_extend_mutable_list(self):
        class X:
            @property
            def __class__(self):
                L[:] = [ET.Element('baz')]
                return ET.Element
        L = [X()]
        e = ET.Element('foo')
        try:
            e.extend(L)
        except TypeError:
            pass

        class Y(X, ET.Element):
            pass
        L = [Y('x')]
        e = ET.Element('foo')
        e.extend(L)

    def test_extend_mutable_list2(self):
        class X: