// Copyright (c) 2015, 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 error_at_spawn; import "dart:isolate"; import "dart:async"; import "package:expect/async_helper.dart"; import "package:expect/expect.dart"; isomain(args) { throw new ArgumentError("fast error"); } main() { asyncStart(); // Capture errors from other isolate as raw messages. RawReceivePort errorPort = new RawReceivePort(); errorPort.handler = (message) { String error = message[0]; String stack = message[1]; Expect.equals(new ArgumentError("fast error").toString(), "$error"); errorPort.close(); asyncEnd(); }; Isolate.spawn( isomain, null, // Setup handler as part of spawn. errorsAreFatal: false, onError: errorPort.sendPort, ); }