LibTest/async/StreamController/stream_all_A01_t02.dart

// Copyright (c) 2011, 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 Stream<T> stream
/// The stream that this controller is controlling.
/// @description Checks Stream interface implementation
/// @author a.semenov@unipro.ru

import "dart:async";
import "../Stream/allTests_A02.lib.dart";

Stream<T> create<T>(Iterable<T> data, {bool isError(T element)?, T? defVal}) {
  StreamController<T> sc = new StreamController<T>();
  for (T e in data) {
    if (isError != null && isError(e)) {
      sc.addError(e as Object);
    } else {
      sc.add(e);
    }
  }
  new Future(() => sc.close()); // close stream controller later
  return sc.stream;
}

main() {
  test(create);
}