LayoutTests/model-element/model-element.html

<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script>

test(() => {
    assert_own_property(window, "HTMLModelElement");
}, "HTMLModelElement is exposed on Window.");

test(() => {
    const model = document.createElement("model");
    assert_true(model instanceof HTMLModelElement);
    assert_class_string(model, "HTMLModelElement");
}, "document.createElement('model') returns an HTMLModelElement object.");

</script>
</body>
</html>