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Test Info: Warnings
- This test has a WPT meta file that expects 10 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /custom-elements/revamped-scoped-registry/Element-customElements.tentative.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="host-window"><template shadowrootmode="open" shadowrootclonable="true"><a-b></a-b></template></div>
<div id="host-null"><template shadowrootmode="open" shadowrootclonable="true" shadowrootcustomelements=""><a-b></a-b></template></div>
<script>
test(() => {
assert_equals(document.createElement('div').customElements, window.customElements);
}, 'customElements on a newly constrcuted element should return window.customElements by default');
test(() => {
const sr = document.getElementById('host-window').shadowRoot;
const ab = sr.querySelector('a-b');
assert_equals(sr.customElements, window.customElements);
assert_equals(ab.customElements, window.customElements);
}, 'customElements on an element inside a declarative shadow DOM should return window.customElements by default');
test(() => {
const sr = document.getElementById('host-null').shadowRoot;
const ab = sr.querySelector('a-b');
assert_equals(sr.customElements, null);
assert_equals(ab.customElements, null);
}, 'customElements on an element inside a declarative shadow DOM with shadowrootcustomelements should return null');
test(() => {
const clone = document.getElementById('host-null').cloneNode(true);
const sr = clone.shadowRoot;
const ab = sr.querySelector('a-b');
assert_equals(sr.customElements, null);
assert_equals(ab.customElements, null);
}, 'customElements on a clone of a declarative shadow tree with shadowrootcustomelements should return null');
test((t) => {
const clone = document.getElementById('host-null').cloneNode(true);
const ab = clone.shadowRoot.querySelector('a-b');
document.body.appendChild(ab);
assert_equals(ab.customElements, window.customElements);
const frame = document.createElement('iframe');
t.add_cleanup(() => frame.remove());
document.body.appendChild(frame);
frame.contentDocument.body.append(ab);
assert_equals(ab.customElements, frame.contentWindow.customElements);
}, 'customElements on a clone of a declarative shadow tree with shadowrootcustomelements should return the global registry after getting inserted into a document');
test(() => {
const sr = document.getElementById('host-null').shadowRoot;
const ab = sr.querySelector('a-b');
const registry = new CustomElementRegistry;
registry.initialize(sr);
assert_equals(sr.customElements, registry);
assert_equals(ab.customElements, registry);
}, 'customElements on an element inside a declarative shadow DOM with shadowrootcustomelements should return the scoped registry after calling initialize');
test(() => {
const registry = new CustomElementRegistry;
element = document.createElement('div', {customElements: registry});
assert_equals(element.customElements, registry);
}, 'customElements on a builtin element created by calling createElement on CustomElementRegistry should return the registry');
test(() => {
const registry = new CustomElementRegistry;
element = document.createElement('non-existent', {customElements: registry});
assert_equals(element.customElements, registry);
}, 'customElements on an upgarde candidate created by calling createElement on CustomElementRegistry should return the registry');
test(() => {
const registry = new CustomElementRegistry;
element = document.createElement('nonexistent', {customElements: registry});
assert_equals(element.customElements, registry);
}, 'customElements on an unknown element created by calling createElement on CustomElementRegistry should return the registry');
test(() => {
const registry = new CustomElementRegistry;
registry.define('custom-element', class extends HTMLElement { })
element = document.createElement('custom-element', {customElements: registry});
assert_equals(element.customElements, registry);
}, 'customElements on a defined custom element created by calling createElement on CustomElementRegistry should return the registry');
</script>
</body>
</html>