LibTest/async/Completer/complete_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 void complete([T value])
 * Completes future with the supplied values.
 * The value must be either a value of type T or a future of type Future<T>.
 * If the value is itself a future, the completer will wait for that future to
 * complete, and complete with the same result, whether it is a success or an
 * error.
 * All listeners on the future are informed about the value.
 * @description Checks that after [complete] is called without arguments, a value
 * in corresponding future is available and is equal to null.
 * @author kaigorodov
 */
import "../../../Utils/expect.dart";

import "dart:async";

main() {
  var completer = new Completer();
  var future = completer.future;

  completer.complete();

  asyncStart();
  future.then((fValue) {
    Expect.equals(fValue, null);
    asyncEnd();
  });
}