|  | // Copyright (c) 2015, 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 'dart:developer'; | 
|  | import 'package:expect/expect.dart'; | 
|  |  | 
|  | void testUnbalancedStartFinish() { | 
|  | Timeline.startSync('A'); | 
|  | Timeline.finishSync(); | 
|  |  | 
|  | bool exceptionCaught = false; | 
|  | try { | 
|  | Timeline.finishSync(); | 
|  | } catch (e) { | 
|  | exceptionCaught = true; | 
|  | } | 
|  | Expect.isTrue(exceptionCaught); | 
|  | } | 
|  |  | 
|  | void main() { | 
|  | testUnbalancedStartFinish(); | 
|  | } |