Method is_valid_id

Lib/idlelib/idle_test/test_hyperparser.py:204–214

(candidate)

    def test_eat_identifier(self):
        def is_valid_id(candidate):
            result = HyperParser._eat_identifier(candidate, 0, len(candidate))
            if result == len(candidate):
                return True
            elif result == 0:
                return False
            else:
                err_msg = "Unexpected result: {} (expected 0 or {}".format(
                    result, len(candidate)
                )
                raise Exception(err_msg)

        # invalid first character which is valid elsewhere in an identifier
        self.assertFalse(is_valid_id('2notid'))