Method test_MARK_PUSH_macro_bug

Lib/test/test_re.py:2429–2435

(self)

                          {'tag': 'foo', 'text': None}])

    def test_MARK_PUSH_macro_bug(self):
        # issue35859, MARK_PUSH() macro didn't protect MARK-0 if it
        # was the only available mark.
        self.assertEqual(re.match(r'(ab|a)*?b', 'ab').groups(), ('a',))
        self.assertEqual(re.match(r'(ab|a)+?b', 'ab').groups(), ('a',))
        self.assertEqual(re.match(r'(ab|a){0,2}?b', 'ab').groups(), ('a',))
        self.assertEqual(re.match(r'(.b|a)*?b', 'ab').groups(), ('a',))

    def test_MIN_UNTIL_mark_bug(self):
        # Fixed in issue35859, reported in issue9134.