blob: f5b37a1b2b93e39526cc351caeed3a558d3e3075 [file] [log] [blame]
// 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:async_helper/async_helper.dart';
import "package:expect/expect.dart";
import 'dart:async';
import 'catch_errors.dart';
main() {
asyncStart();
Completer done = new Completer();
var events = [];
Stream stream =
new Stream.periodic(const Duration(milliseconds: 20), (x) => x);
// Test that asynchronous callbacks in the done-handler of streams (here
// the `catchErrors`-stream) keep a zone alive.
catchErrors(() {
var subscription;
subscription = stream.take(5).listen((x) {
events.add(x);
}, onDone: () {
new Future.delayed(const Duration(milliseconds: 30), () {
events.add(499);
done.complete(true);
});
});
}).listen((x) {
events.add("outer: $x");
}, onDone: () {
Expect.fail("Unexpected callback");
});
done.future.whenComplete(() {
// Give handlers time to run.
Timer.run(() {
Expect.listEquals([0, 1, 2, 3, 4, 499], events);
asyncEnd();
});
});
}