1/* Copyright JS Foundation and other contributors, http://js.foundation
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16var set = new Set();
17var int = 1;
18assert (set.size === 0);
19assert (set.add (int) === set);
20assert (set.has (int));
21assert (set.size === 1);
22
23var str = "foobar"
24assert (set.add (str) === set);
25assert (set.has (str));
26assert (set.size === 2);
27
28var number = 5.78;
29assert (set.add (number) === set);
30assert (set.has (number));
31assert (set.size === 3);
32
33var object = { a : 2, b : 4};
34assert (set.add (object) === set);
35assert (set.has (object));
36assert (set.size === 4);
37
38var func = function () {};
39assert (set.add (func) === set);
40assert (set.has (func));
41assert (set.size === 5);
42
43var symbol = Symbol ("foo");
44assert (set.add (symbol) === set);
45assert (set.has (symbol));
46assert (set.size === 6);
47
48assert (!set.has(5));
49assert (!set.has("foo"));
50assert (!set.has({ a : 2, b : 4}));
51assert (!set.has(function () {}));
52assert (!set.has(Symbol ("foo")));
53
54var elements = [int, str, number, object, func, symbol];
55
56var i = 0;
57set.forEach (function (value, key) {
58  assert (key === elements[i]);
59  assert (value === elements[i]);
60  i++;
61});
62
63assert (set.delete (int));
64assert (set.size === 5);
65assert (set.delete (str));
66assert (set.size === 4);
67assert (set.delete (number));
68assert (set.size === 3);
69assert (set.delete (object));
70assert (set.size === 2);
71assert (set.delete (func));
72assert (set.size === 1);
73assert (set.delete (symbol));
74assert (set.size === 0);
75
76set = new Set([1, 2, 3, 4]);
77assert (set.has(1));
78assert (set.has(2));
79assert (set.has(3));
80assert (set.has(4));
81
82assert (set.size === 4);
83assert (set.add (2) === set);
84assert (set.size === 4);
85assert (set.delete (2));
86assert (set.size === 3);
87
88set.clear();
89assert(set.size === 0);
90
91set.add(3);
92assert(set.delete(3));
93assert(!set.delete(3));
94
95function createIterable(arr, methods = {}) {
96  let iterable = function *() {
97    let idx = 0;
98    while (idx < arr.length) {
99      yield arr[idx];
100      idx++;
101    }
102  }();
103  iterable['return'] = methods['return'];
104  iterable['throw'] = methods['throw'];
105
106  return iterable;
107};
108
109var closed = false;
110var iter = createIterable([1, 2, 3], {
111  'return': function(){ closed = true; return {}; }
112});
113var add = Set.prototype.add;
114Set.prototype.add = function(){ throw 0 };
115try {
116  new Set(iter);
117} catch(e){}
118Set.prototype.add = add;
119
120assert(closed === true);
121
122/* Test third argument of callback */
123var s = new Set([1, 2, 3]);
124
125s.forEach(function(value, key, thisArg) {
126  assert (typeof thisArg === "object");
127  assert(thisArg === s);
128});
129
130var set = new Set();
131set.add(-0);
132var k;
133set.forEach(function (value) {
134  k = 1 / value;
135});
136
137assert(k === Infinity);
138assert(set.has(+0) === true);
139