LibTest/io/Stdout/close_A02_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.

/// @assertion Future close()
/// NOTE: Writes to the [IOSink] may be buffered, and may not be flushed by a
/// call to close().
/// @description Checks that target consumer cannot be closed while stream is
/// being added to the consumer.
/// @author iarkh@unipro.ru

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

test(Stdout sink) {
  Stream<List<int>> stream =
      new Stream<List<int>>.fromIterable([[1, 2], [12], [3, 22]]);
  sink.addStream(stream).then((x) {
    new Future.delayed(new Duration(seconds: 3));
  });
  Expect.throws(() { sink.close(); }, (e) => e is StateError);
}

main(List<String> args) {
  test(stdout);
  test(stderr);
}