dom/bindings/test/test_domProxyArrayLengthGetter.html

   1 <!DOCTYPE html>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=1221421
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 1221421</title>
   9   <script src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  11   <script type="text/javascript">
  12
  13   var x = document.documentElement.style;
  14   x.__proto__ = [1, 2, 3];
  15
  16   var res = 0;
  17   for (var h = 0; h < 5000; ++h) {
  18     res += x.length;
  19   }
  20   is(res, 15000, "length getter should return array length");
  21
  22   </script>
  23 </head>
  24
  25 <body>
  26   <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1221421">Mozilla Bug 1221421</a>
  27 </body>
  28 </html>