floitsch@google.com
dc9c5f42ed
Since this involved a breaking change I cleaned up more of the StreamTransformer API. This CL also deprecates the getAttachedStackTrace method. R=ajohnsen@google.com, lrn@google.com, nweiz@google.com, rnystrom@google.com Review URL: https://codereview.chromium.org//25354003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@28562 260f80e4-7a28-3924-810f-c04153c831b5
59 lines
1.9 KiB
Dart
59 lines
1.9 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: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 = [];
|
|
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();
|
|
stream = controller.stream
|
|
.map((x) {
|
|
events.add("map $x");
|
|
return x + 100;
|
|
})
|
|
.transform(new StreamTransformer.fromHandlers(
|
|
handleError: (e, st, sink) { sink.add("error $e"); }))
|
|
.asBroadcastStream();
|
|
stream.listen((x) { events.add("stream $x"); });
|
|
}).listen((x) { events.add(x); })
|
|
.asFuture().then((_) { Expect.fail("Unexpected callback"); });
|
|
stream.listen((x) { events.add("stream2 $x"); });
|
|
controller.add(1);
|
|
// Errors are not allowed to traverse boundaries. This error should be
|
|
// caught by the outer catchErrors.
|
|
controller.addError(2);
|
|
controller.close();
|
|
}).listen((x) {
|
|
events.add("outer: $x");
|
|
if (x == 2) done.complete(true);
|
|
},
|
|
onDone: () { Expect.fail("Unexpected callback"); });
|
|
|
|
done.future.whenComplete(() {
|
|
// Give handlers time to run.
|
|
Timer.run(() {
|
|
Expect.listEquals(["map 1",
|
|
"stream 101",
|
|
"stream2 101",
|
|
"outer: 2",
|
|
],
|
|
events);
|
|
asyncEnd();
|
|
});
|
|
});
|
|
}
|