LibTest/isolate/ReceivePort/last_A01_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 final Future<T> last
/// Returns the last element of the stream.
/// @description Checks that the last element is returned.
/// @author kaigorodov

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

const VAL = 123;

void check(Stream s) {
  asyncStart();
  s.last.then((value) {
    Expect.equals(VAL, value);
    asyncEnd();
  });
}

main() {
  check(IsolateStream.fromIterable([VAL]));
  check(IsolateStream.fromIterable([VAL / 2, VAL]));
  check(
      IsolateStream.fromIterable(new Iterable.generate(1, (int index) => VAL)));
  check(IsolateStream.fromIterable(
      new Iterable.generate(2, (int index) => VAL * index)));
}