LibTest/async/Future/asStream_A02_t01.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 abstract Stream<T> asStream()
/// The stream will produce single data or error event containing the completion
/// result of this future, and then it will close with a done event.
/// @description Checks that the stream is closed after the completion value is
/// send.
/// @author kaigorodov

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

String output1 = "";

main() {
  var value = 99;
  Future future = new Future.sync(()=>value);
  Stream stream = future.asStream();
  int count = 1;

  asyncStart();
  stream.listen(
    (var event){  // should be invoked first
    	count = count + 1;
    },
    onDone: () {
	    Expect.equals(2, count);
      asyncEnd();
    }   // should be invoked second
  );
}