1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mathml/presentation-markup/operators/mo-lspace-rspace-dynamic-ref.html b/testing/web-platform/tests/mathml/presentation-markup/operators/mo-lspace-rspace-dynamic-ref.html
new file mode 100644
index 0000000000..85cabd287d
--- /dev/null
+++ b/testing/web-platform/tests/mathml/presentation-markup/operators/mo-lspace-rspace-dynamic-ref.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>&lt;mo&gt; dynamic lspace rspace (reference)</title>
+    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+    <style>
+      math, math * {
+          font: 60px/1 Ahem;
+      }
+      mo {
+          color: blue;
+      }
+    </style>
+  </head>
+  <body>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_attach_lspace" lspace="2em">X</mo><mn>2</mn>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_attach_rspace" rspace="3em">X</mo><mn>2</mn>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_modify_lspace" lspace="4em" rspace="1em">X</mo><mn>2</mn>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_modify_rspace" lspace="1em" rspace="5em">X</mo><mn>2</mn>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_remove_lspace" rspace="1em">X</mo><mn>2</mn>
+      </math>
+    </p>
+    <p>
+      <math>
+        <mn>1</mn><mo id="mo_remove_rspace" lspace="1em">X</mo><mn>2</mn>
+      </math>
+    </p>
+  </body>
+</html>