js/src/tests/test262/built-ins/Symbol/keyFor/arg-symbol-registry-miss.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-symbol.keyfor
description: >
    Called with Symbol value that does not exist in the global symbol registry
info: |
    1. If Type(sym) is not Symbol, throw a TypeError exception.
    2. For each element e of the GlobalSymbolRegistry List (see 19.4.2.1),
       a. If SameValue(e.[[Symbol]], sym) is true, return e.[[Key]].
    3. Assert: GlobalSymbolRegistry does not currently contain an entry for
       sym.
    4. Return undefined. 
features: [Symbol.iterator, Symbol]
---*/

var constructed = Symbol('Symbol.iterator');
assert.sameValue(Symbol.keyFor(constructed), undefined, 'constructed symbol');

assert.sameValue(
  Symbol.keyFor(Symbol.iterator), undefined, 'well-known symbol'
);

reportCompare(0, 0);