// 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 final bool isNotEmpty
/// Returns true if there is at least one element in this collection.
/// @description Checks that isNotEmpty is read-only property and cannot be
/// changed.
/// @author iarkh@unipro.ru

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

main() {
  dynamic queue = new DoubleLinkedQueue();
  Expect.throws(() { queue.isNotEmpty = 1; }, (e) => e is NoSuchMethodError);
}