third_party/WebKit/LayoutTests/fast/dom/custom/document-register-svg-extends.html

   1 <!DOCTYPE html>
   2 <script src="../../../resources/testharness.js"></script>
   3 <script src="../../../resources/testharnessreport.js"></script>
   4 <body>
   5 <script>
   6 test(function () {
   7     var proto = Object.create(SVGGElement.prototype);
   8
   9     assert_throws('NOT_SUPPORTED_ERR', function() {
  10         document.registerElement('x-foo', {prototype: proto});
  11     }, 'register of an SVG element requires the extends parameter');
  12
  13     var XFoo = document.registerElement('x-foo', {prototype: proto, extends: 'g'});
  14
  15     var created = new XFoo();
  16     assert_true(created instanceof SVGGElement, 'created element should be an SVG element');
  17
  18 }, 'registration of SVG types');
  19 </script>