LibTest/io/IOSink/done_A01_t01.dart

// Copyright (c) 2017, 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

/// @assertion Future done
/// Get a future that will complete when the consumer closes, or when an error
/// occurs.
/// @description Checks that [done] will complete after the consumer closes
/// @author iarkh@unipro.ru

import "../../../Utils/expect.dart";
import "dart:io";
import "dart:async";

test() async {
  StreamController<List<int>> controller = new StreamController<List<int>>();
  dynamic sink = new IOSink(controller);
  int isDone = 0;

  sink.done.then((addresses) {
    Expect.isTrue(controller.isClosed);
    isDone++;
  }, onError: (e) { Expect.fail("Unexpected error appeared: $e"); });

  await controller.close();
  Expect.equals(1, isDone);
}

main() {
  test();
}