tests/lib/async/catch_errors_test.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:expect/expect.dart";
import 'dart:async';
import 'dart:isolate';
import 'catch_errors.dart';

main() {
  // We keep a ReceivePort open until all tests are done. This way the VM will
  // hang if the callbacks are not invoked and the test will time out.
  var port = new ReceivePort();
  // Make sure `catchErrors` shuts down the error stream when the synchronous
  // operation is done and there isn't any asynchronous pending callback.
  catchErrors(() {
    return 'allDone';
  }).listen((x) {
      Expect.fail("Unexpected callback");
    },
    onDone: () {
      port.close();
    });
}