Method expect_failure

Lib/test/test_sqlite3/test_cli.py:42–47

(self, *args)

        return out

    def expect_failure(self, *args):
        out, err, code = self._do_test(*args, expect_success=False)
        self.assertNotEqual(code, 0,
                            "\n".join([f"Unexpected failure: {args=}", out, err]))
        self.assertEqual(out, "")
        return err

    def test_cli_help(self):
        out = self.expect_success("-h")