| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>If prototype is already an interface prototype object, Document.registerElement() throws a NotSupportedError</title> |
| <meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru"> |
| <meta name="assert" content="If PROTOTYPE is already an interface prototype object for any interface object, throw a NotSupportedError and stop"> |
| <link rel="help" href="http://www.w3.org/TR/custom-elements/#instantiating-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(); |
| HTML5_ELEMENTS.forEach(function(tagName) { |
| var obj = doc.createElement(tagName); |
| var name = 'x-a-' + tagName; |
| assert_throws('NotSupportedError', function() { |
| doc.registerElement(name, {prototype: obj.constructor.prototype}); |
| }, 'Exception should be thrown in case of attempt to register element ' + |
| 'if prototype is already an interface prototype object (' + name + ')'); |
| }); |
| }, 'Test Document.registerElement() throws NotSupportedError ' + |
| 'if prototype is already an interface prototype object'); |
| |
| |
| test(function() { |
| var doc = newHTMLDocument(); |
| var proto = Object.create(HTMLElement.prototype); |
| doc.registerElement('x-b', { |
| prototype: proto |
| }); |
| assert_throws('NotSupportedError', function() { |
| doc.registerElement('x-b', { |
| prototype: proto |
| }); |
| }, 'Exception should be thrown if registring custom element type with already used prototype'); |
| }, 'Test Document.registerElement() throws NotSupportedError ' + |
| 'if prototype is already used for another custom element type'); |
| </script> |
| </body> |
| </html> |
