LayoutTests/fast/parser/fragment-foreign-content-context.html

<div>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=56380">https://bugs.webkit.org/show_bug.cgi?id=56380</a>. Verify that WebKit does not ASSERT when a fragment with a foreign content context element is parsed.</div>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
    document.body.appendChild(svgElement);
    svgElement.appendChild(document.createElement("div")).insertAdjacentHTML("beforeBegin", "<div>");
</script>