| // 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. |
| |
| import "package:expect/expect.dart"; |
| |
| void testListMapCorrespondence(List list, Map map) { |
| Expect.equals(list.length, map.length); |
| for (int i = 0; i < list.length; i++) { |
| Expect.equals(list[i], map[i]); |
| } |
| Expect.isNull(map[list.length]); |
| Expect.isNull(map[-1]); |
| |
| Iterable keys = map.keys; |
| Iterable values = map.values; |
| Expect.isFalse(keys is List); |
| Expect.isFalse(values is List); |
| Expect.equals(list.length, keys.length); |
| Expect.equals(list.length, values.length); |
| for (int i = 0; i < list.length; i++) { |
| Expect.equals(i, keys.elementAt(i)); |
| Expect.equals(list[i], values.elementAt(i)); |
| } |
| |
| int forEachCount = 0; |
| map.forEach((key, value) { |
| Expect.equals(forEachCount, key); |
| Expect.equals(list[key], value); |
| forEachCount++; |
| }); |
| |
| for (int i = 0; i < list.length; i++) { |
| Expect.isTrue(map.containsKey(i)); |
| Expect.isTrue(map.containsValue(list[i])); |
| } |
| Expect.isFalse(map.containsKey(-1)); |
| Expect.isFalse(map.containsKey(list.length)); |
| |
| Expect.equals(list.length, forEachCount); |
| |
| Expect.equals(list.isEmpty, map.isEmpty); |
| } |
| |
| void testConstAsMap(List list) { |
| Map<int, dynamic> map = list.asMap(); |
| |
| testListMapCorrespondence(list, map); |
| |
| Expect.throwsUnsupportedError(() => map[0] = 499); |
| Expect.throwsUnsupportedError(() => map.putIfAbsent(0, () => 499)); |
| Expect.throwsUnsupportedError(() => map.clear()); |
| } |
| |
| void testFixedAsMap(List list) { |
| testConstAsMap(list); |
| |
| Map<int, dynamic> map = list.asMap(); |
| |
| if (!list.isEmpty) { |
| list[0] = 499; |
| // Check again to make sure the map is backed by the list. |
| testListMapCorrespondence(list, map); |
| } |
| } |
| |
| void testAsMap(List list) { |
| testFixedAsMap(list); |
| |
| Map<int, dynamic> map = list.asMap(); |
| |
| Iterable keys = map.keys; |
| Iterable values = map.values; |
| |
| list.add(42); |
| // Check again to make sure the map is backed by the list and that the |
| // length is not cached. |
| testListMapCorrespondence(list, map); |
| // Also check that the keys and values iterable from the map are backed by |
| // the list. |
| Expect.equals(list.length, keys.length); |
| Expect.equals(values.length, values.length); |
| } |
| |
| main() { |
| testConstAsMap(const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| testAsMap([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| List list = new List(10); |
| for (int i = 0; i < 10; i++) list[i] = i + 1; |
| testFixedAsMap(list); |
| |
| testConstAsMap(const []); |
| testAsMap([]); |
| testFixedAsMap(new List(0)); |
| } |