| // Copyright (c) 2016, 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 |
| /// HashMap.fromIterable(Iterable iterable, {K key(element), V value(element)}) |
| /// For each element of the iterable this constructor computes a key/value pair, |
| /// by applying key and value respectively. |
| /// @description Checks that created hash map contains all elements of the |
| /// iteratable with key/values according functions specified |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| main() { |
| DoubleLinkedQueue queue = new DoubleLinkedQueue(); |
| queue.add(1); |
| queue.add(2); |
| queue.add(3); |
| queue.add('a'); |
| queue.add('b'); |
| queue.add('c'); |
| queue.add(null); |
| |
| HashMap map = new HashMap.fromIterable( |
| queue, key: (el) => 'key' + el.toString(), |
| value: (el) => 'val' + el.toString()); |
| Expect.equals(queue.length, map.length); |
| queue.forEach((el) { |
| Expect.equals('val' + el.toString(), map['key' + el.toString()]); |
| }); |
| } |