blob: 7fe1c86de2da4fee1c54731dc75ae956e369bc07 [file] [log] [blame]
// Copyright (c) 2012, 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.
library isolate_unhandled_exception_test2;
import 'dart:isolate';
// Tests that an isolate's keeps message handling working after
// throwing an unhandled exception, if there is a top level callback
// method that returns whether to continue handling messages or not.
// This test verifies that a default-named callback function is called
// when no callback is specified in Isolate.spawnFunction.
// Note: this test will hang if an uncaught exception isn't handled,
// either by an error in the callback or it returning false.
void entry() {
port.receive((message, replyTo) {
if (message == 'throw exception') {'throwing exception');
throw new UnsupportedError('ignore this exception');
bool _unhandledExceptionCallback(IsolateUnhandledException e) {
return e.source.message == 'ignore this exception';
void main() {
var isolate_port = spawnFunction(entry);
// Send a message that will cause an ignorable exception to be thrown.
Future f ='throw exception');
f.onComplete((future) {
// Exception wasn't ignored as it was supposed to be.
Expect.equals(null, future.exception);
// Verify that isolate can still handle messages.'hi').onComplete((future) {
Expect.equals(null, future.exception);
Expect.equals('hello', future.value);