<!doctype html>
<html>
  <head>
    <title>Large Operator Munderover</title>
    <meta charset="utf-8"/>
    <style type="text/css">
      /* This font is taken from Mozilla's test suite. */
      @font-face {
      font-family: stretchy;
        src: url("stretchy.woff");
      }
      math {
        font-family: stretchy;
      }
    </style>
    <script src="../../resources/testharness.js"></script>
    <script src="../../resources/testharnessreport.js"></script>
    <script>
      var epsilon = 1;
      setup({ "explicit_done": true });
      function run() {
        // font em is 1024, size of glyph L8 is 8389 and font-size is 16px
        var largeop = document.getElementById("largeop").getBoundingClientRect();
        var green = document.getElementById("green").getBoundingClientRect();
        var red = document.getElementById("red").getBoundingClientRect();
        var size = (8389/1024)*16;

        test(function() {
          assert_approx_equals(largeop.width, size, epsilon);
        }, "largeop width");
        test(function() {
          assert_approx_equals(largeop.height, size, epsilon);
        }, "largeop height");
        test(function() {
          assert_less_than_equal(green.bottom, largeop.top);
        }, "green bar is above");
        test(function() {
          assert_greater_than_equal(red.top, largeop.bottom);
        }, "red bar is below");
        done();
      }
    </script>
  </head>
  <body onload="run()">
    <p>This test passes if you see a large black square with a green bar overscript and a red bar underscript.</p>
    <math display="block">
      <munderover>
        <mo id="largeop" lspace="0px" rspace="0px" style="font-size: 16px;" >&#x2A1C;</mo>
        <mspace id="red" width="200px" height="10px" depth="10px" mathbackground="red"/>
        <mspace id="green" width="250px" height="10px" depth="10px" mathbackground="green"/>
      </munderover>
    </math>
  </body>
</html>