| /* |
| * 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 map(f(E element)) |
| * The transformed elements will not be cached. Iterating multiple times over the the returned |
| * Iterable will invoke the supplied function f multiple times on the same element. |
| * @description Checks that iterating multiple times over the the |
| * returned Iterable will invoke the supplied function f multiple times on the same element. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| import "LinkedList.lib.dart"; |
| |
| List<int> visited=new List<int>(200); |
| |
| int f(MyLinkedListEntry<int> entry) { |
| int element=entry.value; |
| visited[element]++; |
| return element; |
| } |
| |
| void checkResult(List<int> a, int expected) { |
| LinkedList<MyLinkedListEntry<int>> llist = toLinkedList(a); |
| int count=0; |
| Iterable<int> mapIter=llist.map(f); |
| for (int el in mapIter) { |
| count++; |
| } |
| Expect.equals(a.length, count); |
| for (int k=0; k<200; k++) { |
| Expect.equals(expected, visited[k]); |
| } |
| } |
| |
| main() { |
| List<int> a=new List<int>(); |
| for (int k=0; k<200; k++) { |
| a.add(k); |
| visited[k]=0; |
| } |
| checkResult(a, 1); |
| checkResult(a, 2); |
| checkResult(a, 3); |
| } |