| /* |
| * 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 abstract E reduce(E combine(E value, E element)) |
| * Reduces a collection to a single value by iteratively combining elements of |
| * the collection using the provided function. |
| * @description Checks that the result is correct for simple functions. |
| * @author kaigorodov |
| */ |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| |
| check(List a, combine, num expected) { |
| num actual=a.reduce(combine); |
| Expect.equals(expected, actual); |
| } |
| |
| main() { |
| check([1,2,-3], (value, element) => value+element, 0); |
| check([1,2,-3], (value, element) => value*element, -6); |
| check([0,2,-3], (value, element) => value*element, 0); |
| check(const[1,2,-5,-6], (value, element) => max(value,element), 2); |
| } |
