chromium/third_party/blink/web_tests/external/wpt/infrastructure/channels/test_serialize.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>object serialization</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/channel.sub.js"></script>
<script src="serialize-data.js"></script>

<script>
setup(() => {
    remote = new RemoteGlobal();

    let url = `serialize_child.html?uuid=${remote.uuid}`;
    win = window.open(url);
});

for (let [name, obj] of Object.entries(objects)) {
    promise_test(async t => {
        let result = await remote.call(
            (name, inputValue) => compareResult(name, inputValue),
            name,
            obj.input);
        assert_true(result);
    }, `Serialize ${name}`);
}

promise_test(async t => {
    let remoteValue = RemoteObject.from(document.head);
    let result = await remote.call(inputValue => {
        if (!(inputValue instanceof RemoteObject)) {
            throw new AssertionError(`Expected RemoteObject`);
        }
        return inputValue;
    }, remoteValue);
    assert_equals(result, document.head);
}, "Serialize RemoteObject");

</script>