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<title>Test for SpecialPowers.nondeterministicGetWeakMapKeys</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<div id="content" class="testbody">
<script type="text/javascript">
var emptyMap = new WeakMap;
is(SpecialPowers.nondeterministicGetWeakMapKeys(emptyMap).length, 0, "Empty map has no keys");
var twoMap = new WeakMap;
var x = {};
var y = {};
twoMap.set(x, 1);
twoMap.set(y, 2);
var twoMapKeys = SpecialPowers.nondeterministicGetWeakMapKeys(twoMap);
is(twoMapKeys.length, 2, "Map with two things should have two keys");
ok(twoMapKeys[0] == x || twoMapKeys[1] == x, "One of the keys should be x");
ok(twoMapKeys[0] == y || twoMapKeys[1] == y, "One of the keys should be y");