Florian Loitsch
38bf70d7ac
Migrated from https://chromiumcodereview.appspot.com/2893893002/ Change-Id: I0bd6dc1438eb1e6762e7760a08b5a760b07d4b10 Reviewed-on: https://dart-review.googlesource.com/4942 Reviewed-by: Florian Loitsch <floitsch@google.com> Commit-Queue: Florian Loitsch <floitsch@google.com>
95 lines
2.4 KiB
Dart
95 lines
2.4 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:expect/expect.dart';
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import 'package:async_helper/async_helper.dart';
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import 'dart:async';
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main() {
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Completer done = new Completer();
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List events = [];
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bool shouldForward = true;
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Expect.identical(Zone.ROOT, Zone.current);
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Zone forked = Zone.current.fork(specification: new ZoneSpecification(
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run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
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// The zone is still the same as when origin.run was invoked, which
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// is the root zone. (The origin zone hasn't been set yet).
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Expect.identical(Zone.ROOT, Zone.current);
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events.add("forked.run");
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if (shouldForward) return parent.run(origin, f);
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return 42 as R;
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}));
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events.add("zone forked");
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Zone expectedZone = forked;
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var result = forked.run(() {
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Expect.identical(expectedZone, Zone.current);
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events.add("run closure");
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return 499;
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});
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Expect.equals(499, result);
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events.add("executed run");
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shouldForward = false;
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result = forked.run(() {
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Expect.fail("should not be invoked");
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});
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Expect.equals(42, result);
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events.add("executed run2");
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asyncStart();
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shouldForward = true;
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result = forked.run(() {
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Expect.identical(forked, Zone.current);
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events.add("run closure 2");
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forked.scheduleMicrotask(() {
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events.add("run closure 3");
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Expect.identical(forked, Zone.current);
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done.complete(true);
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});
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return 1234;
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});
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events.add("after nested scheduleMicrotask");
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Expect.equals(1234, result);
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done.future.whenComplete(() {
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Expect.listEquals([
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"zone forked",
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"forked.run",
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"run closure",
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"executed run",
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"forked.run",
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"executed run2",
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"forked.run",
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"run closure 2",
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"after nested scheduleMicrotask",
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"forked.run",
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"run closure 3"
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], events);
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asyncEnd();
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});
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var zone1 = Zone.ROOT.fork();
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var zone2 = Zone.ROOT.fork();
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var zone3 = Zone.ROOT.fork();
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asyncStart();
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asyncStart();
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zone1.run(() {
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var future = new Future.value();
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zone2.run(() {
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future.then((_) {
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Expect.identical(zone2, Zone.current);
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asyncEnd();
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});
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});
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zone3.run(() {
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future.then((_) {
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Expect.identical(zone3, Zone.current);
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asyncEnd();
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});
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});
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});
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}
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