dart-sdk/tests/lib/async/stack_trace10_test.dart
Robert Nystrom a2b556b937 Migrate lib_2/async to NNBD.
Change-Id: Ia5c41dda6503e1fbb8cc6099835d07588425e2ba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/128310
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
2020-01-09 22:04:37 +00:00

33 lines
832 B
Dart

// 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.
import 'package:expect/expect.dart';
import 'package:async_helper/async_helper.dart';
import 'dart:async';
StackTrace captureStackTrace() {
try {
throw 0;
} catch (e, st) {
return st;
}
}
main() {
StackTrace trace = captureStackTrace();
var controller;
controller = new StreamController(onListen: () {
controller.addError("error", trace);
controller.close();
});
asyncStart();
controller.stream.listen(null).asFuture().then((_) {
throw "should never be reached";
}, onError: (e, st) {
Expect.equals("error", e);
Expect.identical(trace, st);
asyncEnd();
});
}