blob: c2ea06c79e33058dfbca776003f8f8237fb7a223 [file] [log] [blame]
// Copyright (c) 2011, 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 void addFirst(E value)
/// Adds [value] at the beginning of the queue.
/// @description Checks that method does not affect other content of the queue
/// @author kaigorodov
import "../../../Utils/expect.dart";
import "dart:collection";
check(List expected, DoubleLinkedQueue actual) {
Expect.equals(expected.length, actual.length);
int i = 0;
actual.forEach((var element) {
Expect.equals(expected[i++], element);
main() {
DoubleLinkedQueue queue = new DoubleLinkedQueue();
Expect.isTrue(queue.length == 0);
check([null], queue);
check([0, null], queue);
check(["1", 0, null], queue);