commit fdb97be043d89c37bbc0edd23ec97c3dfc11a877
parent becd9b31be634f6d0f6492b574a5dd4540c60a51
Author: Anne van Kesteren <annevk@annevk.nl>
Date: Fri, 10 Oct 2025 07:49:50 +0000
Bug 1992958 [wpt PR 55248] - DOM: attachShadow()'s custom element registry, a=testonly
Automatic update from web-platform-tests
DOM: attachShadow()'s custom element registry
See https://github.com/whatwg/dom/issues/1407 for context.
--
wpt-commits: de9ff543b0f74812be3609be8db4f4fa7bbfac31
wpt-pr: 55248
Diffstat:
2 files changed, 32 insertions(+), 3 deletions(-)
diff --git a/testing/web-platform/tests/custom-elements/registries/ShadowRoot-init-customElementRegistry.html b/testing/web-platform/tests/custom-elements/registries/ShadowRoot-init-customElementRegistry.html
@@ -37,14 +37,14 @@ test(() => {
const host = document.body.appendChild(document.createElement('div'));
const shadowRoot = host.attachShadow({mode: 'closed', customElementRegistry: null});
assert_equals(shadowRoot.customElementRegistry, window.customElements);
-}, 'attachShadow() should use the global registry when customElementRegistry is null');
+}, 'attachShadow() should use the global registry when customElementRegistry is null (host uses global registry)');
test(() => {
const registry = new CustomElementRegistry;
const host = document.body.appendChild(document.createElement('div', {customElementRegistry: registry}));
const shadowRoot = host.attachShadow({mode: 'closed', customElementRegistry: null});
- assert_equals(shadowRoot.customElementRegistry, registry);
-}, 'attachShadow() should use the shadow host\'s registry when customElementRegistry is null');
+ assert_equals(shadowRoot.customElementRegistry, window.customElements);
+}, 'attachShadow() should use the global registry when customElementRegistry is null (host uses custom registry)');
test(() => {
const registry = new CustomElementRegistry;
diff --git a/testing/web-platform/tests/custom-elements/registries/ShadowRoot-init-declarative.html b/testing/web-platform/tests/custom-elements/registries/ShadowRoot-init-declarative.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<title>Scoped Custom Element Registries: declarative shadow root</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="host">
+ <template shadowrootmode="open" shadowrootcustomelementregistry>
+ <custom-element></custom-element>
+ <div></div>
+ </template>
+</div>
+<script>
+test(() => {
+ const customElement = host.shadowRoot.firstElementChild;
+ assert_equals(customElement.customElementRegistry, null);
+ customElement.attachShadow({
+ mode: "open"
+ });
+ assert_equals(customElement.shadowRoot.customElementRegistry, null);
+}, "Custom element inside 'shadowrootcustomelementregistry' declarative shadow root");
+
+test(() => {
+ const divElement = host.shadowRoot.lastElementChild;
+ assert_equals(divElement.customElementRegistry, null);
+ divElement.attachShadow({
+ mode: "open"
+ });
+ assert_equals(divElement.shadowRoot.customElementRegistry, null);
+}, "Built-in element inside 'shadowrootcustomelementregistry' declarative shadow root");
+</script>
