LibTest/collection/DoubleLinkedQueue/first_A01_t02.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 final E first
/// @description Checks that E is final and cannot be changed
/// @author iarkh@unipro.ru

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

main() {
  dynamic queue = new DoubleLinkedQueue();
  queue.add(1);
  queue.add(2);
  Expect.throws(() { queue.first = 1; }, (e) => e is NoSuchMethodError);
}