annotation-xml-fragment-parsing.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/webappapis/dynamic-markup-insertion/the-innerhtml-property/annotation-xml-fragment-parsing.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<title>mathml:annotation-xml and fragment parsing</title>

<link rel="help" href="https://issues.chromium.org/513859894">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<math>

  <annotation-xml id="noenc"></annotation-xml>

  <annotation-xml id="enchtml" encoding="application/xhtml+xml"></annotation-xml>

</math>

<script>

  "use strict";

  const noenc = document.getElementById("noenc");

  const enchtml = document.getElementById("enchtml");

  const HTML_NS = "http://www.w3.org/1999/xhtml";

  const MATH_NS = "http://www.w3.org/1998/Math/MathML";

  test(() => {

    noenc.innerHTML = "<style><img></style>";

    assert_equals(noenc.namespaceURI, MATH_NS, "<annotation-xml> namespace");

    assert_equals(noenc.childNodes.length, 2, "<annotation-xml> child count");

    assert_equals(noenc.firstChild.namespaceURI, MATH_NS, "<annotation-xml> first child namespace");

    assert_equals(noenc.firstChild.localName, "style", "<annotation-xml> first child localName");

    assert_equals(noenc.firstChild.childNodes.length, 0, "<annotation-xml> first child child count");

    assert_equals(noenc.firstChild.nextSibling.namespaceURI, HTML_NS, "<annotation-xml> second child namespace");

    assert_equals(noenc.firstChild.nextSibling.localName, "img", "<annotation-xml> second child localName");

    assert_equals(noenc.firstChild.nextSibling.childNodes.length, 0, "<annotation-xml> second child child count");

  }, `HTML parsing doesn't apply in <annotation-xml> without encoding attribute`);

  test(() => {

    enchtml.innerHTML = "<style><img></style>";

    assert_equals(enchtml.namespaceURI, MATH_NS, "<annotation-xml> namespace");

    assert_equals(enchtml.childNodes.length, 1, "<annotation-xml> child count");

    assert_equals(enchtml.firstChild.namespaceURI, HTML_NS, "<annotation-xml> child namespace");

    assert_equals(enchtml.firstChild.childNodes.length, 1, "<annotation-xml> child's child count");

    assert_equals(enchtml.firstChild.childNodes[0].nodeType, Node.TEXT_NODE, "<annotation-xml> grandchild node type");

  }, `HTML parsing does apply in <annotation-xml encoding="application/xhtml+xml">`);

</script>