blob: 91849a8c9d42fddfe310ea540c957aac408227a2 [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.
library maps_test;
import "package:expect/expect.dart";
import 'dart:collection';
main() {
final key1 = "key1";
final key2 = "key2";
final key3 = "key3";
final key4 = "key4";
final key5 = "key5";
final key6 = "key6";
final key7 = "key7";
final key8 = "key8";
final value1 = 10;
final value2 = 20;
final value3 = 30;
final value4 = 40;
final value5 = 50;
final value6 = 60;
final value7 = 70;
final value8 = 80;
Map map = new Map();
map[key1] = value1;
map[key1] = value2;
Expect.equals(false, Maps.containsKey(map, key2));
Expect.equals(1, Maps.length(map));
map[key1] = value1;
// Add enough entries to make sure the table grows.
map[key2] = value2;
Expect.equals(2, Maps.length(map));
map[key3] = value3;
map[key4] = value4;
map[key5] = value5;
map[key6] = value6;
map[key7] = value7;
map[key8] = value8;
Expect.equals(8, Maps.length(map));
map.remove(key4);
Expect.equals(false, Maps.containsKey(map, key4));
Expect.equals(7, Maps.length(map));
// Test clearing the table.
Maps.clear(map);
Expect.equals(0, Maps.length(map));
Expect.equals(false, Maps.containsKey(map, key1));
Expect.equals(false, map.containsKey(key1));
Expect.equals(false, Maps.containsKey(map, key2));
Expect.equals(false, map.containsKey(key2));
Expect.equals(false, Maps.containsKey(map, key3));
Expect.equals(false, map.containsKey(key3));
Expect.equals(false, Maps.containsKey(map, key4));
Expect.equals(false, map.containsKey(key4));
Expect.equals(false, Maps.containsKey(map, key5));
Expect.equals(false, map.containsKey(key5));
Expect.equals(false, Maps.containsKey(map, key6));
Expect.equals(false, map.containsKey(key6));
Expect.equals(false, Maps.containsKey(map, key7));
Expect.equals(false, map.containsKey(key7));
Expect.equals(false, Maps.containsKey(map, key8));
Expect.equals(false, map.containsKey(key8));
// Test adding and removing again.
map[key1] = value1;
Expect.equals(1, Maps.length(map));
map[key2] = value2;
Expect.equals(2, Maps.length(map));
map[key3] = value3;
map.remove(key3);
Expect.equals(2, Maps.length(map));
map[key4] = value4;
map.remove(key4);
Expect.equals(2, Maps.length(map));
map[key5] = value5;
map.remove(key5);
Expect.equals(2, Maps.length(map));
map[key6] = value6;
map.remove(key6);
Expect.equals(2, Maps.length(map));
map[key7] = value7;
map.remove(key7);
Expect.equals(2, Maps.length(map));
map[key8] = value8;
map.remove(key8);
Expect.equals(2, Maps.length(map));
Expect.equals(true, Maps.containsKey(map, key1));
Expect.equals(true, Maps.containsValue(map, value1));
// Test Map.forEach.
Map other_map = new Map();
void testForEachMap(key, value) {
other_map[key] = value;
}
Maps.forEach(map, testForEachMap);
Expect.equals(true, other_map.containsKey(key1));
Expect.equals(true, other_map.containsKey(key2));
Expect.equals(true, other_map.containsValue(value1));
Expect.equals(true, other_map.containsValue(value2));
Expect.equals(2, Maps.length(other_map));
// Test Collection.values.
void testForEachCollection(value) {
other_map[value] = value;
}
Iterable values = Maps.getValues(map);
other_map = new Map();
values.forEach(testForEachCollection);
Expect.equals(true, !other_map.containsKey(key1));
Expect.equals(true, !other_map.containsKey(key2));
Expect.equals(true, !other_map.containsValue(key1));
Expect.equals(true, !other_map.containsValue(key2));
Expect.equals(true, other_map.containsKey(value1));
Expect.equals(true, other_map.containsKey(value2));
Expect.equals(true, other_map.containsValue(value1));
Expect.equals(true, other_map.containsValue(value2));
Expect.equals(2, other_map.length);
other_map.clear();
// Test Map.putIfAbsent.
map.clear();
Expect.equals(false, Maps.containsKey(map, key1));
Maps.putIfAbsent(map, key1, () => 10);
Expect.equals(true, map.containsKey(key1));
Expect.equals(10, map[key1]);
Expect.equals(10, Maps.putIfAbsent(map, key1, () => 11));
}