|  | // Copyright (c) 2012, 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. | 
|  |  | 
|  | library timer_cancel1_test; | 
|  |  | 
|  | import 'dart:async'; | 
|  |  | 
|  | import 'package:async_helper/async_minitest.dart'; | 
|  |  | 
|  | main() { | 
|  | // Test that a timeout handler can cancel another. | 
|  | test("timer cancel1 test", () { | 
|  | var canceleeTimer; | 
|  | var cancelerTimer; | 
|  |  | 
|  | void unreachable() { | 
|  | fail("A canceled timeout handler should be unreachable."); | 
|  | } | 
|  |  | 
|  | void handler() { | 
|  | canceleeTimer.cancel(); | 
|  | } | 
|  |  | 
|  | cancelerTimer = | 
|  | new Timer(const Duration(milliseconds: 1), expectAsync(handler)); | 
|  | canceleeTimer = new Timer( | 
|  | const Duration(milliseconds: 1000), expectAsync(unreachable, count: 0)); | 
|  | }); | 
|  | } |