Index: LayoutTests/imported/web-platform-tests/custom-elements/instantiating-custom-elements/non-configurable-constructor-property.html |
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+++ b/LayoutTests/imported/web-platform-tests/custom-elements/instantiating-custom-elements/non-configurable-constructor-property.html |
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+<!DOCTYPE html> |
+<html> |
+<head> |
+<title>If prototype has a non-configurable property named constructor, Document.registerElement() throws NotSupportedError</title> |
+<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru"> |
+<meta name="assert" content="If PROTOTYPE has a non-configurable property named constructor, 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(); |
+ var proto = Object.create(HTMLElement.prototype); |
+ Object.defineProperty(proto, 'constructor', {configurable: false}); |
+ assert_throws('NotSupportedError', function() { |
+ doc.registerElement('x-a', {prototype: proto}); |
+ }, 'Exception should be thrown in case of attempt to register element ' + |
+ 'with a non-configurable property named constructor'); |
+}, 'Test Document.registerElement() throws NotSupportedError ' + |
+ 'if prototype has a non-configurable property named constructor'); |
+ |
+ |
+test(function() { |
+ var doc = newHTMLDocument(); |
+ var proto = Object.create(HTMLElement.prototype); |
+ Object.defineProperty(proto, 'constructor', {configurable: true}); |
+ try { |
+ doc.registerElement('x-b', {prototype: proto}); |
+ } catch (e) { |
+ assert_unreached('Exception should not be thrown in case of attempt to register ' + |
+ 'element with a configurable property named constructor'); |
+ } |
+}, 'Test Document.registerElement() accepts prototype with a configurable ' + |
+ 'property named constructor without throwing errors'); |
+</script> |
+</body> |
+</html> |