| // 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 LinkedHashMap.fromIterables(Iterable<K> keys, Iterable<V> values) |
| /// Creates a [LinkedHashMap] associating the given [keys] to [values]. |
| /// |
| /// This constructor iterates over [keys] and [values] and maps each element of |
| /// [keys] to the corresponding element of [values]. |
| /// @description Checks that created hash map contains all elements of the given |
| /// [keys] and [values]. |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| check(Iterable keys, Iterable values) { |
| LinkedHashMap m = new LinkedHashMap.fromIterables(keys, values); |
| Expect.equals(keys.length, m.length); |
| for (int i = 0; i < keys.length; i++) { |
| Expect.equals(values.elementAt(i), m[keys.elementAt(i)]); |
| } |
| } |
| |
| main() { |
| check([1, 2, 3, 4, "5", 6, null, 7], [1, 2, 3, 4, 5, 6, 7, 8]); |
| check([-1, 2.2, new Object(), "", "5", null, 0], [0, 0, 0, 0, 0, 0, 0]); |
| check([], []); |
| } |