tests/lib_2/async/catch_errors28_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.

// @dart = 2.9

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 periodic Timers are handled correctly by `catchErrors`.
  catchErrors(() {
    int counter = 0;
    new Timer.periodic(const Duration(milliseconds: 50), (timer) {
      if (counter == 5) {
        timer.cancel();
        done.complete(true);
      }
      counter++;
      events.add(counter);
    });
  }).listen((x) {
    events.add(x);
  }, onDone: () {
    Expect.fail("Unexpected callback");
  });

  done.future.whenComplete(() {
    // Give handlers time to run.
    Timer.run(() {
      Expect.listEquals([
        "main exit",
        1,
        2,
        3,
        4,
        5,
        6,
      ], events);
      asyncEnd();
    });
  });

  events.add("main exit");
}