42 lines
1.7 KiB
HTML
42 lines
1.7 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>Custom Elements: document.implementation.createElement must not instantiate a custom element</title>
|
|
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
|
|
<meta name="assert" content="document.implementation.createElement must not instantiate a custom element">
|
|
<link rel="help" content="https://dom.spec.whatwg.org/#dom-domimplementation-createdocument">
|
|
<link rel="help" content="https://html.spec.whatwg.org/#look-up-a-custom-element-definition">
|
|
<script src="../../resources/testharness.js"></script>
|
|
<script src="../../resources/testharnessreport.js"></script>
|
|
<script src="resources/custom-elements-helpers.js"></script>
|
|
</head>
|
|
<body>
|
|
<div id="log"></div>
|
|
<script>
|
|
|
|
const xhtmlNamespaceURI = 'http://www.w3.org/1999/xhtml';
|
|
|
|
test_with_window((contentWindow, contentDocument) => {
|
|
let constructorCount = 0;
|
|
class MyCustomElement extends contentWindow.HTMLElement {
|
|
constructor() {
|
|
super();
|
|
constructorCount++;
|
|
}
|
|
}
|
|
contentWindow.customElements.define('my-custom-element', MyCustomElement);
|
|
const instance = contentDocument.createElement('my-custom-element');
|
|
assert_true(instance instanceof MyCustomElement);
|
|
assert_equals(constructorCount, 1);
|
|
|
|
const newDocument = contentDocument.implementation.createDocument(xhtmlNamespaceURI, 'my-custom-element', null);
|
|
assert_equals(constructorCount, 1);
|
|
assert_true(newDocument.documentElement instanceof contentWindow.HTMLElement);
|
|
assert_equals(newDocument.documentElement.localName, 'my-custom-element');
|
|
assert_false(newDocument.documentElement instanceof MyCustomElement);
|
|
}, 'document.createElement invoke a custom element constructor with no arguments');
|
|
|
|
</script>
|
|
</body>
|
|
</html>
|