| /* |
| * 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<E> where(bool f(E element)) |
| * Returns a lazy Iterable with all elements that satisfy the predicate f. |
| * This method returns a view of the mapped elements. |
| * As long as the returned Iterable is not iterated over, the supplied function f will not be invoked. |
| * Iterating will not cache results, and thus iterating multiple times over the the returned Iterable |
| * will invoke the supplied function f multiple times on the same element. |
| * @description Checks that as long as the resulting collection is iterated over to the end, |
| * the target collection is too. |
| * @author msyabro |
| * @reviewer varlax |
| */ |
| library where_A01_t06; |
| |
| import "../../../Utils/expect.dart"; |
| |
| test(Iterable create([Iterable content]), {bool isSet:false}) { |
| List list = new List(); |
| |
| for(int i = 0; i < 100; i++) { |
| list.add(i); |
| } |
| |
| Iterable res = create(list).where((var element) { |
| return true; |
| }); |
| |
| Expect.isTrue(res.length == 100); |
| int i = 0; |
| Iterator it = res.iterator; |
| while(it.moveNext()) { |
| Expect.equals(i, it.current); |
| i++; |
| } |
| } |