| /* |
| * 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 Iterable expand(Iterable f(E element)) |
| * The resulting Iterable runs through the elements returned by f for each element of this, in order. |
| * @description Checks that the resulting Iterable runs through the elements |
| * returned by f for each element of this, in order. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| Iterable f(int element) { |
| List<int> res=new List<int>(element); |
| for (int k=0; k<element; k++) { |
| res[k]=element; |
| } |
| return res; |
| } |
| |
| main() { |
| DoubleLinkedQueue<int> queue = new DoubleLinkedQueue<int>(); |
| |
| for (int k=0; k<10; k++) { |
| queue.add(k); |
| } |
| |
| Iterator expanded=queue.expand(f).iterator; |
| int expected=1; |
| while (expanded.moveNext()) { |
| Expect.equals(expected, expanded.current); |
| for (int k=1; k<expected; k++) { |
| Expect.isTrue(expanded.moveNext()); |
| Expect.equals(expected, expanded.current); |
| } |
| expected++; |
| } |
| |
| } |