DOMParser-parseFromString-xml-internal-subset.html

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This WPT test may be referenced by the following Test IDs:
- /domparsing/DOMParser-parseFromString-xml-internal-subset.html - WPT Dashboard Interop Dashboard

<!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>