| // Copyright (c) 2013, 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. |
| |
| import "package:expect/expect.dart"; |
| |
| main() { |
| List list = [1, 2]; |
| list.add(list); |
| |
| List list2 = new List(4); |
| list2[0] = 1; |
| list2[1] = 2; |
| list2[2] = list2; |
| list2[3] = list; |
| |
| Expect.equals("[1, 2, [...]]", list.toString()); |
| Expect.equals("[1, 2, [...], [1, 2, [...]]]", list2.toString()); |
| |
| // Throwing in the middle of a toString does not leave the |
| // list as being visited. |
| List list3 = [1, 2, new ThrowOnToString(), 4]; |
| Expect.throws(list3.toString, (e) => e == "Bad!"); |
| list3[2] = 3; |
| Expect.equals("[1, 2, 3, 4]", list3.toString()); |
| } |
| |
| class ThrowOnToString { |
| |
| String toString() { |
| throw "Bad!"; |
| } |
| } |