<!DOCTYPE>
<html>
<head>
<script src="../../../resources/js-test-pre.js"></script>
<script>
description("Checks that Range.deleteContents() is able to delete a docType");
jsTestIsAsync = true;

function runTest() {
    testDocument = document.getElementById("testFrame").contentDocument;
    shouldNotBe("testDocument.doctype", "null");

    range = testDocument.createRange();
    range.setStart(testDocument, 0);
    range.setEnd(testDocument, 2);

    shouldNotThrow("range.deleteContents()");
    shouldBe("testDocument.doctype", "null");
    finishJSTest();
}
</script>
</head>
<body>
<iframe id="testFrame" src="resources/frame-with-doctype.html" onload="runTest()"></iframe>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>