<!DOCTYPE html>
<html>
<body>
<div id="container"></div>
<script src="../../../resources/js-test-pre.js"></script>
<script><!--
(function()
{
    if (!window.internals)
        return;

    // Parser should build HTMLUnknownElement for <webkitShadowContent>.
    container = document.getElementById("container");
    container.innerHTML = "<div><webkitShadowContent id='shouldBeUnknown'></webkitShadowContent></div>";
    parsedElementShouldBeUnknown = document.getElementById("shouldBeUnknown");
    shouldBe("parsedElementShouldBeUnknown.tagName", "'WEBKITSHADOWCONTENT'");
    shouldBeTrue("0 < parsedElementShouldBeUnknown.constructor.toString().indexOf('HTMLUnknownElement')");

    container.innerHTML = "<details id='details'><summary></summary></details>";
    details = document.getElementById("details");

    // The user agent shadow for <details> has HTMLContentElement with tagName "webkitShadowContent".
    // This element should be wrapped as an HTMLElement because it isn't HTMLUnknownElement and
    // HTMLContentElement wrapper is unavailable unless SHADOW_DOM is enabled.
    shadow = internals.shadowRoot(details);
    contentInuserAgentShadow = shadow.firstChild;
    shouldBe("contentInuserAgentShadow.tagName", "'WEBKITSHADOWCONTENT'");
    shouldBeTrue("0 < contentInuserAgentShadow.constructor.toString().indexOf('HTMLElement')");
})();
--></script>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>