Language/Statements/Yield_and_Yield_Each/Yield/syntax_t04.dart

// Copyright (c) 2016, 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 The yield statement adds an element to the result of a generator
/// function.
///  yieldStatement:
///    yield expression ‘;’
///   ;
///
/// @description Check correct usage of yield statement in asynchronous
/// generator function
///
/// @author a.semenov@unipro.ru


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

Stream<int> test() async* {
  yield 1;
}

main() {
  asyncStart();
  int k = 0;
  test().forEach((int i) => k = k + i).then(
      (_) {
        Expect.equals(1, k);
        asyncEnd();
      }
  );
}