| // 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. |
| |
| import "package:expect/expect.dart"; |
| import 'dart:collection'; |
| |
| main() { |
| defaultFunctionValuesTest(); |
| defaultKeyFunctionTest(); |
| defaultValueFunctionTest(); |
| noDefaultValuesTest(); |
| emptyIterableTest(); |
| equalElementsTest(); |
| genericTypeTest(); |
| } |
| |
| void defaultFunctionValuesTest() { |
| var map = new LinkedHashMap.fromIterable([1, 2, 3]); |
| |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(3, map.length); |
| Expect.equals(3, map.keys.length); |
| Expect.equals(3, map.values.length); |
| |
| Expect.equals(1, map[1]); |
| Expect.equals(2, map[2]); |
| Expect.equals(3, map[3]); |
| } |
| |
| void defaultKeyFunctionTest() { |
| var map = new LinkedHashMap.fromIterable([1, 2, 3], value: (x) => x + 1); |
| |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(3, map.length); |
| Expect.equals(3, map.keys.length); |
| Expect.equals(3, map.values.length); |
| |
| Expect.equals(2, map[1]); |
| Expect.equals(3, map[2]); |
| Expect.equals(4, map[3]); |
| } |
| |
| void defaultValueFunctionTest() { |
| var map = new LinkedHashMap.fromIterable([1, 2, 3], key: (x) => x + 1); |
| |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(3, map.length); |
| Expect.equals(3, map.keys.length); |
| Expect.equals(3, map.values.length); |
| |
| Expect.equals(1, map[2]); |
| Expect.equals(2, map[3]); |
| Expect.equals(3, map[4]); |
| } |
| |
| void noDefaultValuesTest() { |
| var map = new LinkedHashMap.fromIterable([1, 2, 3], |
| key: (x) => x + 1, value: (x) => x - 1); |
| |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(3, map.length); |
| Expect.equals(3, map.keys.length); |
| Expect.equals(3, map.values.length); |
| |
| Expect.equals(0, map[2]); |
| Expect.equals(1, map[3]); |
| Expect.equals(2, map[4]); |
| } |
| |
| void emptyIterableTest() { |
| var map = new LinkedHashMap.fromIterable([]); |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(0, map.length); |
| Expect.equals(0, map.keys.length); |
| Expect.equals(0, map.values.length); |
| } |
| |
| void equalElementsTest() { |
| var map = new LinkedHashMap.fromIterable([1, 2, 2], key: (x) => x + 1); |
| |
| Expect.isTrue(map is Map); |
| Expect.isTrue(map is LinkedHashMap); |
| |
| Expect.equals(2, map.length); |
| Expect.equals(2, map.keys.length); |
| Expect.equals(2, map.values.length); |
| |
| Expect.equals(1, map[2]); |
| Expect.equals(2, map[3]); |
| } |
| |
| void genericTypeTest() { |
| var map = new LinkedHashMap<int, String>.fromIterable(<int>[1, 2, 3], |
| value: (x) => '$x'); |
| Expect.isTrue(map is Map<int, String>); |
| Expect.isTrue(map is LinkedHashMap<int, String>); |
| |
| map = new LinkedHashMap<String, String>.fromIterable(<int>[1, 2, 3], |
| key: (x) => '$x', value: (x) => '$x'); |
| Expect.isTrue(map is Map<String, String>); |
| Expect.isTrue(map is LinkedHashMap<String, String>); |
| |
| // Make sure it is not just LinkedHashMap<dynamic, dynamic>. |
| Expect.isFalse(map is LinkedHashMap<int, dynamic>); |
| Expect.isFalse(map is LinkedHashMap<dynamic, int>); |
| } |