dom/bindings/test/test_lenientThis.html

   1 <!doctype html>
   2 <meta charset=utf-8>
   3 <title>[LenientThis]</title>
   4 <script src=/resources/testharness.js></script>
   5 <script src=/resources/testharnessreport.js></script>
   6 <div id=log></div>
   7 <script>
   8 /* global test, assert_equals */
   9 function noop1() { }
  10 function noop2() { }
  11
  12 test(function() {
  13   var desc = Object.getOwnPropertyDescriptor(Document.prototype, "onreadystatechange");
  14
  15   document.onreadystatechange = noop1;
  16   assert_equals(document.onreadystatechange, noop1, "document.onreadystatechange == noop1");
  17   assert_equals(desc.get.call({ }), undefined, "document.onreadystatechange getter.call({}) == undefined");
  18 }, "invoking Document.onreadystatechange's getter with an invalid this object returns undefined");
  19
  20 test(function() {
  21   var desc = Object.getOwnPropertyDescriptor(Document.prototype, "onreadystatechange");
  22
  23   document.onreadystatechange = noop1;
  24   assert_equals(document.onreadystatechange, noop1, "document.onreadystatechange == noop1");
  25   assert_equals(desc.set.call({ }, noop2), undefined, "document.onreadystatechange setter.call({}) == undefined");
  26   assert_equals(document.onreadystatechange, noop1, "document.onreadystatechange == noop1 (still)");
  27 }, "invoking Document.onreadystatechange's setter with an invalid this object does nothing and returns undefined");
  28 </script>