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
16try {
17  Symbol.for (Symbol('foo'));
18  assert (false);
19} catch (e) {
20  assert (e instanceof TypeError)
21}
22
23var a = Symbol.for ('foo');
24var b = Symbol.for ('foo');
25
26assert (a === b);
27assert (a == b);
28
29assert (Symbol.keyFor (a) === 'foo');
30assert (Symbol.keyFor (b) === 'foo');
31
32// Test non-string arguments
33var c = Symbol.for (5);
34var d = Symbol.for (5.58);
35var e = Symbol.for ({});
36
37assert (Symbol.keyFor (c) === '5');
38assert (Symbol.keyFor (d) === '5.58');
39assert (Symbol.keyFor (e) === '[object Object]');
40
41// Test global symbol table
42var array = [];
43for (var i = 0; i < 15; i++) {
44  array[i] = Symbol.for ('foo' + i);
45
46  for (var j = 0; j < i; j++) {
47    assert (array[j] !== array[i]);
48  }
49}
50
51try {
52  Symbol.keyFor ('NonSymbolValue');
53  assert (false);
54} catch (e) {
55  assert (e instanceof TypeError);
56}
57
58for (var i = 0; i < 15; i++) {
59  assert (Symbol.keyFor (array[i]) === ('foo' + i));
60}
61