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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1173199
-->
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="testnodes"><span>hi</span> there <!-- mon ami --></div>
<script type="application/javascript">
const mathmlNS = "http://www.w3.org/1998/Math/MathML";
let t = document.getElementById('testnodes');
test(function() {
t.innerHTML = null;
t.appendChild(document.createElementNS(mathmlNS, "math:math"));
assert_equals(t.firstChild.namespaceURI, mathmlNS);
t.firstChild.textContent = "<foo>";
assert_equals(t.innerHTML, "<math:math><foo></math:math>");
}, "Writing '<foo>' element in a dynamically created MathML element.");
test(function() {
t.innerHTML = null;
t.appendChild(document.createElementNS(mathmlNS, "math"));
assert_equals(t.firstChild.namespaceURI, mathmlNS);
t.firstChild.appendChild(document.createElementNS(mathmlNS, "script"));
assert_equals(t.firstChild.firstChild.namespaceURI, mathmlNS);
t.firstChild.firstChild.textContent = "1&2<3>4\xA0";
assert_equals(t.innerHTML,
'<math><script>1&2<3>4 \u003C/script></math>');
}, "Writing '<script>' element in a dynamically created MathML element.");
test(function() {
t.innerHTML = null;
t.appendChild(document.createElementNS(mathmlNS, "math"));
assert_equals(t.firstChild.namespaceURI, mathmlNS);
t.firstChild.appendChild(document.createElementNS(mathmlNS, "style"));
assert_equals(t.firstChild.firstChild.namespaceURI, mathmlNS);
t.firstChild.firstChild.textContent = "1&2<3>4\xA0";
assert_equals(t.innerHTML,
'<math><style>1&2<3>4 \u003C/style></math>');
}, "Writing '<style>' element in a dynamically created MathML element.");
</script>
</body>
</html>
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