1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html b/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html
new file mode 100644
index 0000000000..d39ff45f62
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>mfenced element</title>
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mfenced">
+    <link rel="help" href="https://w3c.github.io/mathml-core/#new-display-math-value">
+    <link rel="help" href="https://w3c.github.io/mathml-core/#mathml-elements">
+    <link rel="help" href="https://w3c.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
+    <meta name="assert" content="Verify that the mfenced element is not supported.">
+    <link rel="match" href="legacy-mfenced-element-001-ref.html">
+  </head>
+  <body>
+    <p>Test passes if you see 6 green squares and no red.</p>
+    <p>
+      <math style="color: red">
+        <mfenced>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+        </mfenced>
+        <mfenced open="{" close="]" separators="?!">
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+        </mfenced>
+      </math>
+    </p>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");
+    </script>
+  </body>
+</html>