mirror of
https://github.com/dart-lang/sdk
synced 2024-09-16 04:37:12 +00:00
a2b556b937
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>
61 lines
1.6 KiB
Dart
61 lines
1.6 KiB
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';
|
|
import 'event_helper.dart';
|
|
|
|
get currentStackTrace {
|
|
try {
|
|
throw 0;
|
|
} catch (e, st) {
|
|
return st;
|
|
}
|
|
}
|
|
|
|
// In most cases the callback will be 'asyncEnd'. Errors are reported
|
|
// asynchronously. We want to give them time to surface before reporting
|
|
// asynchronous tests as done.
|
|
void delayCycles(callback, int nbCycles) {
|
|
if (nbCycles == 0) {
|
|
callback();
|
|
return;
|
|
}
|
|
Timer.run(() {
|
|
delayCycles(callback, nbCycles - 1);
|
|
});
|
|
}
|
|
|
|
main() {
|
|
// Make sure the generic types are correct.
|
|
asyncStart();
|
|
var stackTrace = currentStackTrace;
|
|
var events = [];
|
|
var controller;
|
|
controller = new StreamController<int>(onListen: () {
|
|
controller.add(499);
|
|
controller.addError(42, stackTrace);
|
|
controller.close();
|
|
});
|
|
controller.stream
|
|
.transform(new StreamTransformer<int, String>.fromHandlers(
|
|
handleData: (int data, EventSink<String> sink) {
|
|
sink.add(data.toString());
|
|
}, handleError: (e, st, EventSink<String> sink) {
|
|
sink.add(e.toString());
|
|
sink.addError(e, st);
|
|
}, handleDone: (EventSink<String> sink) {
|
|
sink.add("done");
|
|
sink.close();
|
|
}))
|
|
.listen((data) => events.add(data), onError: (e, st) {
|
|
events.add(e);
|
|
events.add(st);
|
|
}, onDone: () {
|
|
Expect.listEquals(["499", "42", 42, stackTrace, "done"], events);
|
|
delayCycles(asyncEnd, 3);
|
|
});
|
|
}
|