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42 lines
1.8 KiB
HTML
42 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>If prototype has a non-configurable property named constructor, Document.registerElement() throws NotSupportedError</title>
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<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
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<meta name="assert" content="If PROTOTYPE has a non-configurable property named constructor, throw a NotSupportedError and stop">
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<link rel="help" href="http://www.w3.org/TR/custom-elements/#instantiating-custom-elements">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="../testcommon.js"></script>
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<link rel="stylesheet" href="/resources/testharness.css">
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</head>
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<body>
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<div id="log"></div>
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<script>
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test(function() {
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var doc = newHTMLDocument();
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var proto = Object.create(HTMLElement.prototype);
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Object.defineProperty(proto, 'constructor', {configurable: false});
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assert_throws('NotSupportedError', function() {
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doc.registerElement('x-a', {prototype: proto});
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}, 'Exception should be thrown in case of attempt to register element ' +
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'with a non-configurable property named constructor');
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}, 'Test Document.registerElement() throws NotSupportedError ' +
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'if prototype has a non-configurable property named constructor');
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test(function() {
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var doc = newHTMLDocument();
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var proto = Object.create(HTMLElement.prototype);
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Object.defineProperty(proto, 'constructor', {configurable: true});
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try {
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doc.registerElement('x-b', {prototype: proto});
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} catch (e) {
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assert_unreached('Exception should not be thrown in case of attempt to register ' +
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'element with a configurable property named constructor');
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}
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}, 'Test Document.registerElement() accepts prototype with a configurable ' +
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'property named constructor without throwing errors');
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</script>
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</body>
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</html>
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