tests/lib_2/async/catch_errors7_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:async_helper/async_helper.dart';
import "package:expect/expect.dart";
import 'dart:async';
import 'catch_errors.dart';

main() {
  asyncStart();
  Completer done = new Completer();

  var events = [];
  // Test that asynchronous errors are caught.
  catchErrors(() {
    events.add("catch error entry");
    var futures = [
      new Future.error("future error"),
      new Future.error("future error2"),
      new Future.value(499).then((x) => throw x),
    ];
    int completedCount = 0;
    for (var future in futures) {
      future.whenComplete(() {
        completedCount++;
        if (completedCount == 3) done.complete(true);
      });
    }
    throw "catch error";
  }).listen((x) {
    events.add(x);
  }, onDone: () {
    Expect.fail("Unexpected callback");
  });

  done.future.whenComplete(() {
    // Give handlers time to execute.
    Timer.run(() {
      Expect.listEquals([
        "catch error entry",
        "main exit",
        "catch error",
        "future error",
        "future error2",
        499,
      ], events);
      asyncEnd();
    });
  });
  events.add("main exit");
}