| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| /// @assertion abstract int codeUnitAt(int index) |
| /// Throws ArgumentError if [index] is null |
| /// @description Tries to pass null as argument and expects an ArgumentError |
| /// @author msyabro |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Expect.throws(() {"string".codeUnitAt(null);}, (e) => e is ArgumentError); |
| } |
