blob: ed348e76e47a740aab19f99dda161e517dffa4f4 [file] [log] [blame]
// 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() {
dynamic 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>);
}