LayoutTests/crypto/crypto-key-algorithm-gc.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="../resources/js-test-pre.js"></script>
<script src="resources/common.js"></script>
</head>
<body>
<script>

description("Test that CryptoKey.algorithm preserves custom properties.");
jsTestIsAsync = true;

debug("\nGenerating a HMAC key with default length...");
crypto.subtle.generateKey({name: "hmac", hash: "sha-1"}, true, ["sign", "verify"]).then(function(result) {
    key = result;
    startTest();
});

function startTest()
{
    shouldBeTrue("key.algorithm === key.algorithm");
    key.algorithm.foo = "bar";
    gc();
    setTimeout(continueTest, 10);
}

function continueTest()
{
    gc();
    setTimeout(finishTest, 10);
}

function finishTest()
{
    gc();
    shouldBeEqualToString('key.algorithm.foo', 'bar');
    finishJSTest();
}

</script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>