def test_ancestors_and_parent(self):
parsed = parse('{{a|{{#if:{{b{{c<!---->}}}}}}}}')
self.assertEqual(parsed.parent(), None)
self.assertEqual(parsed.ancestors(), [])
c = parsed.comments[0]
c_parent = c.parent()
self.assertEqual(c_parent.string, '{{c<!---->}}')
self.assertEqual(c_parent.parent().string, '{{b{{c<!---->}}}}')
self.assertEqual(len(c.ancestors()), 4)
self.assertEqual(len(c.ancestors(type_='Template')), 3)
self.assertEqual(len(c.ancestors(type_='ParserFunction')), 1)
t = Template('{{a}}')
self.assertEqual(t.ancestors(), [])
self.assertIsNone(t.parent())
def test_ancestors_and_parent():
parsed = parse('{{a|{{#if:{{b{{c<!---->}}}}}}}}')
assert parsed.parent() is None
assert parsed.ancestors() == []
c = parsed.comments[0]
c_parent = c.parent()
assert c_parent.string == '{{c<!---->}}'
assert c_parent.parent().string == '{{b{{c<!---->}}}}'
assert len(c.ancestors()) == 4
assert len(c.ancestors(type_='Template')) == 3
assert len(c.ancestors(type_='ParserFunction')) == 1
t = Template('{{a}}')
assert t.ancestors() == []
assert t.parent() is None
