// Copyright (c) 2012, 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. library queue.first.test; import "package:expect/expect.dart"; import 'dart:collection' show Queue; main() { Queue queue1 = new Queue(); queue1..add(11)..add(12)..add(13); Queue queue2 = new Queue(); Expect.equals(11, queue1.first); Expect.throws(() => queue2.first, (e) => e is StateError); }