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<!DOCTYPE html>
<meta charset="utf-8">
<title>Cloning of a document with a doctype</title>
<link rel="help" href="https://dom.spec.whatwg.org/#dom-node-clonenode">
<link rel="help" href="https://dom.spec.whatwg.org/#concept-node-clone">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
"use strict";
test(() => {
const doctype = document.implementation.createDocumentType("name", "publicId", "systemId");
const doc = document.implementation.createDocument("namespace", "", doctype);
const clone = doc.cloneNode(true);
assert_equals(clone.childNodes.length, 1, "Only one child node");
assert_equals(clone.childNodes[0].nodeType, Node.DOCUMENT_TYPE_NODE, "Is a document fragment");
assert_equals(clone.childNodes[0].name, "name");
assert_equals(clone.childNodes[0].publicId, "publicId");
assert_equals(clone.childNodes[0].systemId, "systemId");
}, "Created with the createDocument/createDocumentType");
test(() => {
const doc = document.implementation.createHTMLDocument();
const clone = doc.cloneNode(true);
assert_equals(clone.childNodes.length, 2, "Two child nodes");
assert_equals(clone.childNodes[0].nodeType, Node.DOCUMENT_TYPE_NODE, "Is a document fragment");
assert_equals(clone.childNodes[0].name, "html");
assert_equals(clone.childNodes[0].publicId, "");
assert_equals(clone.childNodes[0].systemId, "");
}, "Created with the createHTMLDocument");
test(() => {
const parser = new window.DOMParser();
const doc = parser.parseFromString("<!DOCTYPE html><html></html>", "text/html");
const clone = doc.cloneNode(true);
assert_equals(clone.childNodes.length, 2, "Two child nodes");
assert_equals(clone.childNodes[0].nodeType, Node.DOCUMENT_TYPE_NODE, "Is a document fragment");
assert_equals(clone.childNodes[0].name, "html");
assert_equals(clone.childNodes[0].publicId, "");
assert_equals(clone.childNodes[0].systemId, "");
}, "Created with DOMParser");
</script>
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