| // 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. | 
 |  | 
 | void main() { | 
 |   var l = [new MyTest(1), new MyTest(5), new MyTest(3)]; | 
 |   l.sort(); | 
 |   if (l.toString() != "[d{1}, d{3}, d{5}]") throw 'Wrong result!'; | 
 | } | 
 |  | 
 | class MyTest implements Comparable<MyTest> { | 
 |   final int a; | 
 |   MyTest(this.a); | 
 |   int compareTo(MyTest b) => this.a - b.a; | 
 |   String toString() => "d{$a}"; | 
 | } |