test_etree.py 文件源码

def test_iterancestors(self):
        Element    = self.etree.Element
        SubElement = self.etree.SubElement

        a = Element('a')
        b = SubElement(a, 'b')
        c = SubElement(a, 'c')
        d = SubElement(b, 'd')
        self.assertEqual(
            [],
            list(a.iterancestors()))
        self.assertEqual(
            [a],
            list(b.iterancestors()))
        self.assertEqual(
            [a],
            list(c.iterancestors()))
        self.assertEqual(
            [b, a],
            list(d.iterancestors()))