blob: 3f1b7c8f4be5cef013a943bed967aa509cda247a [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() {
Completer done = new Completer();
var events = [];
StreamController controller;
Stream stream;
// Test that errors are not traversing zone boundaries.
// Note that the first listener of `asBroadcastStream` determines in which
// zone the subscription lives.
catchErrors(() {
catchErrors(() {
controller = new StreamController();
// Assign to "global" `stream`.
stream =
.map((x) {
events.add("map $x");
return x + 100;
.transform(new StreamTransformer.fromHandlers(
handleError: (e, st, sink) { sink.add("error $e"); }))
// Listen to `stream` in the inner zone.
stream.listen((x) { events.add("stream $x"); });
}).listen((x) { events.add(x); })
.asFuture().then((_) {"Unexpected callback"); });
// Listen to `stream` in the outer zone.
stream.listen((x) { events.add("stream2 $x"); });
// Feed the controller from the outer zone.
// `addError` does not count as zone-traversal. It should be caught by
// the inner error handler.
controller.addError("inner error");
new Future.error("caught by outer");
}).listen((x) {
events.add("outer: $x");
if (x == "caught by outer") done.complete(true);
onDone: () {"Unexpected callback"); });
done.future.whenComplete(() {
// Give handlers time to run. {
Expect.listEquals(["map 1",
"stream 101",
"stream2 101",
"stream error inner error",
"stream2 error inner error",
"outer: caught by outer",