dom/bindings/test/test_bug1457051.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=1457051
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 1457051</title>
   9   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
  11   <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
  12   <script type="application/javascript">
  13
  14   /** Test for Bug 1457051 **/
  15   ok(Element.isInstance(document.documentElement), "Basic isInstance works");
  16   ok(!Element.isInstance(null),
  17      "Passing null should return false without throwing");
  18   ok(!Element.isInstance(5), "Passing 5 should return false without throwing");
  19   var obj = Object.create(Element.prototype);
  20   ok(obj instanceof Element, "instanceof should walk the proto chain");
  21   ok(!Element.isInstance(obj), "isInstance should be a pure brand check");
  22
  23   </script>
  24 </head>
  25 <body>
  26 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1457051">Mozilla Bug 1457051</a>
  27 <p id="display"></p>
  28 <div id="content" style="display: none">
  29
  30 </div>
  31 <pre id="test">
  32 </pre>
  33 </body>
  34 </html>