1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=688277
-->
<head>
<meta charset="utf-8">
<title>Tests for nondeterministicGetWeakMapKeys</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 688277 **/
/* Fail gracefully if junk is passed in. */
is(SpecialPowers.nondeterministicGetWeakMapKeys(11), undefined,
"nondeterministicGetWeakMapKeys should return undefined for non-objects");
is(SpecialPowers.nondeterministicGetWeakMapKeys({}), undefined,
"nondeterministicGetWeakMapKeys should return undefined for non-weakmap objects");
is(SpecialPowers.nondeterministicGetWeakMapKeys(null), undefined,
"nondeterministicGetWeakMapKeys should return undefined for null");
/* return an empty array for an empty WeakMap */
let mempty = new WeakMap();
is(SpecialPowers.nondeterministicGetWeakMapKeys(mempty).length, 0,
"nondeterministicGetWeakMapKeys should return empty array for empty weakmap");
/* Test freeing/nonfreeing. */
let m = new WeakMap();
let liveKeys = new Array();
let add_elements = function () {
let k1 = {};
m.set(k1, "live1");
liveKeys.push(k1);
let k2 = {};
m.set(k2, "dead1");
let k = {};
m.set(k, k); /* simple cycle */
};
add_elements();
SpecialPowers.exactGC(function () {
let keys = SpecialPowers.nondeterministicGetWeakMapKeys(m);
is(liveKeys.length, 1, "Wrong number of live keys.");
is(keys.length, 1, "Should have one weak map key.");
is(m.get(keys[0]), "live1", "live1 should be live");
SimpleTest.finish();
});
SimpleTest.waitForExplicitFinish();
</script>
</head>
<body>
<p id="display"></p>
</body>
</html>
|
