Language/Statements/Yield_and_Yield_Each/Yield/execution_sync_t03.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 Execution of a statement s of the form yield e; proceeds as
/// follows:
///    First, the expression e is evaluated to an object o. If the enclosing
///  function m is marked async* and the stream u associated with m has been
///  paused, then execution of m is suspended until u is resumed or canceled.
///    Next, o is added to the iterable or stream associated with the immediately
///  enclosing function.
/// ...
/// If the enclosing function m is marked sync*  then:
///   - Execution of the function m immediately enclosing s is suspended until
///   the nullary method moveNext() is invoked upon the iterator used to initiate
///   the current invocation of m.
///   - The current call to moveNext() returns true.
///
/// @description Check that call to moveNext() upon the iterator, used to
/// initiate the current invocation of m,  returns true
///
/// @author a.semenov@unipro.ru

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

Iterable<int> generator() sync* {
  yield 1;
}

main() {
  Iterable<int> iterable = generator();
  Iterator<int> it = iterable.iterator;
  Expect.equals(true, it.moveNext());
}