Files
sdk/tests/lib/async/catch_errors27_test.dart
T
Jacob Richman 2dcd56ef43 Format all tests.
There are far too many files here to review everyone carefully.
Spot checking most of the diffs look good as test code is generally written
with less care than application code so lots of ugly formatting get through.
If people notice files where the automated formatting bothers them feel free
to comment indicating file names and I'll move spaces within comments to make
the formatting cleaner and use comments to force block formatting as I have
done for other case where formatting looked bad.

BUG=
R=efortuna@google.com

Review-Url: https://codereview.chromium.org/2771453003 .
2017-04-17 14:53:02 -07:00

80 lines
2.1 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 streams live in the zone they have been listened too.
// It doesn't matter how many zone-boundaries the stream traverses. What
// counts is the zone where `listen` was invoked.
catchErrors(() {
catchErrors(() {
controller = new StreamController();
// Assignment to "global" `stream`.
stream = controller.stream.map((x) {
events.add("map $x");
return x + 100;
}).asBroadcastStream();
// Consume stream in the nested zone.
stream.transform(
new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
sink.add("error $e");
})).listen((x) {
events.add("stream $x");
});
// Feed the controller in the nested zone.
scheduleMicrotask(() {
controller.add(1);
controller.addError(2);
controller.close();
new Future.error("done");
});
})
.listen((x) {
events.add("listen: $x");
if (x == "done") done.complete(true);
})
.asFuture()
.then((_) {
Expect.fail("Unexpected callback");
});
// Listen to stream in outer zone.
stream.listen((x) {
events.add("stream2 $x");
});
}).listen((x) {
events.add("outer: $x");
}, onDone: () {
Expect.fail("Unexpected callback");
});
done.future.whenComplete(() {
// Give handlers time to run.
Timer.run(() {
Expect.listEquals([
"map 1",
"stream 101",
"stream2 101",
"stream error 2",
"listen: done",
"outer: 2",
], events);
asyncEnd();
});
});
}