| /* |
| * Copyright (c) 2013, 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> takeWhile(bool test(E value)) |
| * ... |
| * Every new iterator of the returned iterable starts iterating over the |
| * elements of [this]. |
| * @description Checks that every new [Iterator] of the returned [Iterable] |
| * iterates over all elements of [this]. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| int count = 0; |
| |
| bool test(var e) { |
| ++count; |
| return e < 3.0; |
| } |
| |
| Float32List list = new Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0]); |
| var res = list.takeWhile(test); |
| Expect.equals(0, count); |
| res.elementAt(0); |
| Expect.equals(1, count); |
| |
| res.elementAt(0); |
| Expect.equals(2, count); |
| |
| var it = res.iterator; |
| it.moveNext(); |
| Expect.equals(3, count); |
| |
| it.moveNext(); |
| Expect.equals(4, count); |
| } |