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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Test Script and Limit Schemata</title>
+<link rel="help" href="https://w3c.github.io/mathml-core/#script-and-limit-schemata">
+<meta name="assert" content="Script and Limit Schemata should not render anything when empty.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/mathml/support/feature-detection.js"></script>
+<script src="/mathml/support/fonts.js"></script>
+<script>
+ var epsilon = 1;
+
+ function getBox(aId) {
+ return document.getElementById(aId).getBoundingClientRect();
+ }
+
+ setup({ explicit_done: true });
+ window.addEventListener("load", () => { loadAllFonts().then(runTests); });
+
+ function runTests() {
+ test(function() {
+ ["over", "under", "underover", "sub", "sup", "subsup", "multiscripts"].forEach(function(name) {
+ assert_true(MathMLFeatureDetection.has_mspace());
+ assert_approx_equals(getBox(name).width, 0, epsilon, "width of empty " + name);
+ assert_approx_equals(getBox(name).height, 0, epsilon, "height of empty " + name);
+ });
+ }, "Size of empty script elements");
+
+ done();
+ }
+</script>
+</head>
+<body>
+ <div id="log"></div>
+ <p>
+ <math>
+ <munderover id="underover">
+ </munderover>
+ </math>
+ <math>
+ <munder id="under">
+ </munder>
+ </math>
+ <math>
+ <mover id="over">
+ </mover>
+ </math>
+ <math>
+ <msub id="sub">
+ </msub>
+ </math>
+ <math>
+ <msup id="sup">
+ </msup>
+ </math>
+ <math>
+ <msubsup id="subsup">
+ </msubsup>
+ </math>
+ <math>
+ <mmultiscripts id="multiscripts">
+ </mmultiscripts>
+ </math>
+ </p>
+</body>
+</html>