mirror of
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4150349c7c
Closes #41156 Change-Id: I6f5360ccf3f05c2f59de5db703d90431e0d61e7c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141100 Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
46 lines
1.3 KiB
Dart
46 lines
1.3 KiB
Dart
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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import "package:async_helper/async_helper.dart";
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import "dart:async";
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void main() {
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StackTrace stack;
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try {
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throw 0;
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} catch (e, s) {
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stack = s;
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}
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var string = "$stack";
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StackTrace stringTrace = new StackTrace.fromString(string);
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Expect.isTrue(stringTrace is StackTrace);
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Expect.equals(stack.toString(), stringTrace.toString());
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string = "some random string, nothing like a StackTrace";
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stringTrace = new StackTrace.fromString(string);
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Expect.isTrue(stringTrace is StackTrace);
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Expect.equals(string, stringTrace.toString());
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// Use stacktrace asynchronously.
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asyncStart();
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var c = new Completer();
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c.completeError(0, stringTrace);
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c.future.then<Null>((v) {
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throw "Unexpected value: $v";
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}, onError: (e, s) {
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Expect.equals(string, s.toString());
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}).then((_) {
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var c = new StreamController();
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c.stream.listen((v) {
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throw "Unexpected value: $v";
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}, onError: (e, s) {
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Expect.equals(string, s.toString());
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asyncEnd();
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});
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c.addError(0, stringTrace);
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c.close();
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});
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}
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