32 lines
1.2 KiB
HTML
32 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<link rel="help" href="https://dom.spec.whatwg.org/#dom-document-importnode">
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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="../resources/custom-elements-helpers.js"></script>
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<body>
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<script>
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test_with_window((w, doc) => {
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class MyDiv extends HTMLDivElement {}
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class MyDiv2 extends w.HTMLDivElement {}
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customElements.define('my-div', MyDiv, { extends: 'div' });
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w.customElements.define('my-div', MyDiv2, { extends: 'div' });
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let original = document.createElement('div', { is: 'my-div' });
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assert_true(original instanceof MyDiv);
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let imported = doc.importNode(original);
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assert_true(imported instanceof MyDiv2);
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}, 'built-in: document.importNode() should import custom elements successfully');
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test_with_window((w, doc) => {
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class MyDiv2 extends w.HTMLDivElement {}
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w.customElements.define('my-div2', MyDiv2, { extends: 'div' });
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let original = document.createElement('div', { is: 'my-div2' });
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assert_equals(original.constructor, HTMLDivElement);
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let imported = doc.importNode(original);
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assert_true(imported instanceof MyDiv2);
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}, 'built-in: document.importNode() should import "undefined" custom elements successfully');
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</script>
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</body>
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