| // 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 Future forEach(Iterable input, dynamic f(element)) |
| /// Perform an async operation for each element of the iterable, in turn. |
| /// Runs f for each element in input in order, moving to the next element |
| /// only when the Future returned by f completes. |
| /// @description Checks that [f] is executed for each element in input with |
| /// respect to input order. |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List input) { |
| List log = []; |
| |
| dynamic f(element) { |
| log.add(element); |
| return new Future.value(null); |
| } |
| |
| asyncStart(); |
| Future.forEach(input, f).then((_) { |
| Expect.listEquals(input, log); |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| check([0, 1, 2, 3, 4]); |
| check(["a", "b", "c", "d"]); |
| check([]); |
| check([0, null, "a", 3.14, true, false]); |
| } |
| |