| /* |
| * 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 final bool isEmpty |
| * Returns [true] if there is no element in this collection. |
| * @description Checks various lists, that the method returns [true] if there is |
| * no elements in the list, [alse] otherwise. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "LinkedList.lib.dart"; |
| |
| main() { |
| Expect.isTrue(toLinkedList([]).isEmpty); |
| Expect.isFalse(toLinkedList([null]).isEmpty); |
| Expect.isFalse(toLinkedList(const[0, 1, 2, 3, 4]).isEmpty); |
| Expect.isFalse(toLinkedList([[]]).isEmpty); |
| |
| Expect.isTrue(toLinkedList(new List.from([])).isEmpty); |
| Expect.isFalse(toLinkedList(new List.from([[]])).isEmpty); |
| |
| List a = new List(0); |
| Expect.isTrue(toLinkedList(a).isEmpty); |
| a = new List(469); |
| Expect.isFalse(toLinkedList(a).isEmpty); |
| } |