| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>If element interface for name doesn't exists then error must be thrown</title> |
| <meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru"> |
| <meta name="assert" content="If NAME was provided and is not null and if element interface for the name and namespace does not exist or is an interface for a custom element, set ERROR to InvalidName and stop"> |
| <link rel="help" href="http://www.w3.org/TR/custom-elements/#registering-custom-elements"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../testcommon.js"></script> |
| <link rel="stylesheet" href="/resources/testharness.css"> |
| </head> |
| <body> |
| <div id="log"></div> |
| <script> |
| test(function() { |
| var doc = newHTMLDocument(); |
| doc.registerElement('x-a'); |
| assert_throws('NotSupportedError', function() { |
| doc.registerElement('x-b', {extends: 'x-a'}); |
| }, 'Exception should be thrown in case of attempt to register ' + |
| 'a custom element which extends another custom element'); |
| }, 'Exception should be thrown in case of attempt to register ' + |
| 'a custom element which extends another custom element'); |
| </script> |
| </body> |
| </html> |
