LibTest/async/StreamController/done_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 Future done
/// Return a future which is completed when the StreamSink is finished.
///
/// If the StreamSink fails with an error, perhaps in response to adding events
/// using add, addError or close, the done future will complete with that error.
///
/// Otherwise, the returned future will complete when either:
///  - all events have been processed and the sink has been closed, or
///  - the sink has otherwise been stopped from handling more events (for
///    example by cancelling a stream subscription).
///
/// @description Checks that if synchronous methods resulted in no errors,
/// done completes with the same value as close().
/// @author ilya

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

main() {
  var c = new StreamController();

  asyncStart();
  var sync = new Sync2((x, y) {
    Expect.identical(x, y);
    asyncEnd();
  });

  c.done.then((x) {
    sync.put1(x);
  });

  c.add(1);

  c.close().then((x) {
    sync.put2(x);
  });

  c.stream.listen(null);
}