blob: e7a752090e2243d449bff5750ffb5053008c0ec7 [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:expect/expect.dart';
import 'package:async_helper/async_helper.dart';
import 'dart:async';
main() {
Completer done = new Completer();
List events = [];
// runGuarded calls run, captures the synchronous error (if any) and
// gives that one to handleUncaughtError.
Expect.identical(Zone.ROOT, Zone.current);
Zone forked;
forked = Zone.current.fork(
specification: new ZoneSpecification(
run: (Zone self, ZoneDelegate parent, Zone origin, f()) {
// The zone is still the same as when origin.run was invoked, which
// is the root zone. (The origin zone hasn't been set yet).
Expect.identical(Zone.ROOT, Zone.current);
events.add("forked.run");
return parent.run(origin, f);
}, handleUncaughtError:
(Zone self, ZoneDelegate parent, Zone origin, error, stackTrace) {
Expect.identical(Zone.ROOT, Zone.current);
Expect.identical(forked, origin);
events.add("forked.handleUncaught $error");
return 499;
}));
var result = forked.runGuarded(() {
events.add("runGuarded 1");
Expect.identical(forked, Zone.current);
return 42;
});
Expect.identical(Zone.ROOT, Zone.current);
Expect.equals(42, result);
events.add("after runGuarded 1");
result = forked.runGuarded(() {
events.add("runGuarded 2");
Expect.identical(forked, Zone.current);
throw 42;
});
Expect.equals(499, result);
Expect.listEquals([
"forked.run",
"runGuarded 1",
"after runGuarded 1",
"forked.run",
"runGuarded 2",
"forked.handleUncaught 42"
], events);
events.clear();
asyncStart();
result = forked.runGuarded(() {
Expect.identical(forked, Zone.current);
events.add("run closure");
forked.scheduleMicrotask(() {
events.add("run closure 2");
Expect.identical(forked, Zone.current);
done.complete(true);
throw 88;
});
throw 1234;
});
events.add("after nested scheduleMicrotask");
Expect.equals(499, result);
done.future.whenComplete(() {
Expect.listEquals([
"forked.run",
"run closure",
"forked.handleUncaught 1234",
"after nested scheduleMicrotask",
"forked.run",
"run closure 2",
"forked.handleUncaught 88"
], events);
asyncEnd();
});
}