| // 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 "package:expect/expect.dart"; |
| import "package:async_helper/async_helper.dart"; |
| import "dart:async"; |
| |
| void main() { |
| StackTrace stack; |
| try { |
| throw 0; |
| } catch (e, s) { |
| stack = s; |
| } |
| var string = "$stack"; |
| StackTrace stringTrace = new StackTrace.fromString(string); |
| Expect.isTrue(stringTrace is StackTrace); |
| Expect.equals(stack.toString(), stringTrace.toString()); |
| |
| string = "some random string, nothing like a StackTrace"; |
| stringTrace = new StackTrace.fromString(string); |
| Expect.isTrue(stringTrace is StackTrace); |
| Expect.equals(string, stringTrace.toString()); |
| |
| // Use stacktrace asynchronously. |
| asyncStart(); |
| var c = new Completer(); |
| c.completeError(0, stringTrace); |
| c.future.then<Null>((v) { |
| throw "Unexpected value: $v"; |
| }, onError: (e, s) { |
| Expect.equals(string, s.toString()); |
| }).then((_) { |
| var c = new StreamController(); |
| c.stream.listen((v) { |
| throw "Unexpected value: $v"; |
| }, onError: (e, s) { |
| Expect.equals(string, s.toString()); |
| asyncEnd(); |
| }); |
| c.addError(0, stringTrace); |
| c.close(); |
| }); |
| } |