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<!DOCTYPE html>
<title>Parsing and serialization of doctype internal subset</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function () {
// https://www.w3.org/TR/xml11/#sec-prolog-dtd has intSubset as part of the
// syntax, which is not represented in the DocumentType interface. Check that
// publicId and systemId are not affected.
var doc = new DOMParser().parseFromString('<!DOCTYPE foo [ <!ENTITY x "y"> ]><foo>&x;</foo>', 'text/xml');
var doctype = doc.doctype;
assert_equals(doctype.name, 'foo', 'doctype name');
assert_equals(doctype.publicId, '', 'doctype publicId');
assert_equals(doctype.systemId, '', 'doctype systemId');
// Check that document itself was parsed correctly.
var documentElementString = new XMLSerializer().serializeToString(doc.documentElement);
assert_equals(documentElementString, '<foo>y</foo>', 'serialized document element');
// https://w3c.github.io/DOM-Parsing/#xml-serializing-a-documenttype-node also
// does not have any notion of the internal subset, so also check that it
// isn't serialized by XMLSerializer.
var doctypeString = new XMLSerializer().serializeToString(doctype);
assert_equals(doctypeString, '<!DOCTYPE foo>', 'serialized doctype');
});
</script>
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