tor-browser

commit efbe6ee298ade5997775202a41eec601f1c46fc1
parent 581d1d970c8f9b257f84ea5d83686b4033822f4a
Author: Anne van Kesteren <annevk@annevk.nl>
Date:   Thu,  4 Dec 2025 16:55:39 +0000

Bug 2003644 [wpt PR 56419] - Serializing scoped registry ShadowRoot with scoped registry host, a=testonly

Automatic update from web-platform-tests
Serializing scoped registry ShadowRoot with scoped registry host

None of the current tests were actually able to fail the strategy of comparing the host's registry with the shadow root's registry.

Also replace the inner div element with span to improve readability.

--

wpt-commits: b347ee4fb0402d94569bb7d7a545ceb71f9c5851
wpt-pr: 56419

Diffstat:
M
testing/web-platform/tests/custom-elements/registries/template.window.js
 | 
46
++++++++++++++++++++++++++++++----------------

1 file changed, 30 insertions(+), 16 deletions(-)
diff --git a/testing/web-platform/tests/custom-elements/registries/template.window.js b/testing/web-platform/tests/custom-elements/registries/template.window.js
@@ -10,45 +10,45 @@ test(() => {
 
 test(() => {
   const div = document.createElement("div");
-  div.setHTMLUnsafe(`<div><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></div>`);
+  div.setHTMLUnsafe(`<span><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></span>`);
   assert_equals(div.firstChild.firstChild, null);
-  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<div><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></div>");
-}, "Serializing a ShadowRoot with a null registry");
+  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<span><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></span>");
+}, "Serializing a null registry ShadowRoot with a global registry host (document)");
 
 test(() => {
   const div = document.createElement("div");
-  div.setHTMLUnsafe(`<div><template shadowrootmode=open shadowrootserializable></template></div>`);
+  div.setHTMLUnsafe(`<span><template shadowrootmode=open shadowrootserializable></template></span>`);
   assert_equals(div.firstChild.firstChild, null);
   assert_equals(div.firstChild.shadowRoot.customElementRegistry, customElements);
-  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<div><template shadowrootmode=\"open\" shadowrootserializable=\"\"></template></div>");
-}, "Serializing a ShadowRoot with a global registry");
+  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<span><template shadowrootmode=\"open\" shadowrootserializable=\"\"></template></span>");
+}, "Serializing a global registry ShadowRoot with a global registry host (document)");
 
 test(() => {
   const div = document.createElement("div");
-  div.setHTMLUnsafe(`<div><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></div>`);
+  div.setHTMLUnsafe(`<span><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></span>`);
   const registry = new CustomElementRegistry();
   registry.initialize(div.firstChild.shadowRoot);
   assert_equals(div.firstChild.shadowRoot.customElementRegistry, registry);
-  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<div><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></div>");
-}, "Serializing a ShadowRoot with a registry that differs from its host document");
+  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<span><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></span>");
+}, "Serializing a scoped registry ShadowRoot with a global registry host (document)");
 
 test(() => {
   const div = document.implementation.createHTMLDocument().createElement("div");
   assert_equals(div.customElementRegistry, null);
-  div.setHTMLUnsafe(`<div><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></div>`);
+  div.setHTMLUnsafe(`<span><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></span>`);
   assert_equals(div.firstChild.shadowRoot.customElementRegistry, null);
-  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<div><template shadowrootmode=\"open\" shadowrootserializable=\"\"></template></div>");
-}, "Serializing a ShadowRoot with a null registry with a null registry host document");
+  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<span><template shadowrootmode=\"open\" shadowrootserializable=\"\"></template></span>");
+}, "Serializing a null registry ShadowRoot with a null registry host (document)");
 
 test(() => {
   const div = document.implementation.createHTMLDocument().createElement("div");
   assert_equals(div.customElementRegistry, null);
-  div.setHTMLUnsafe(`<div><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></div>`);
+  div.setHTMLUnsafe(`<span><template shadowrootmode=open shadowrootcustomelementregistry shadowrootserializable></template></span>`);
   const registry = new CustomElementRegistry();
   registry.initialize(div.firstChild.shadowRoot);
   assert_equals(div.firstChild.shadowRoot.customElementRegistry, registry);
-  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<div><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></div>");
-}, "Serializing a ShadowRoot with a registry with a null registry host document");
+  assert_equals(div.getHTML({ serializableShadowRoots: true }), "<span><template shadowrootmode=\"open\" shadowrootserializable=\"\" shadowrootcustomelementregistry=\"\"></template></span>");
+}, "Serializing a scoped registry ShadowRoot with a null registry host (document)");
 
 test(() => {
   const registry = new CustomElementRegistry();
@@ -56,9 +56,23 @@ test(() => {
   registry.initialize(hostDocument);
   assert_equals(hostDocument.customElementRegistry, registry);
   const host = hostDocument.createElement('div');
+  assert_equals(host.customElementRegistry, registry);
   const shadow = host.attachShadow({ mode: "closed", serializable: true, customElementRegistry: null });
+  assert_equals(shadow.customElementRegistry, null);
   assert_equals(host.getHTML({ serializableShadowRoots: true }), `<template shadowrootmode="closed" shadowrootserializable="" shadowrootcustomelementregistry=""></template>`);
-}, "Serializing a ShadowRoot with a null registry with a scoped registry host document");
+}, "Serializing a null registry ShadowRoot with a scoped registry host (document)");
+
+test(() => {
+  const registry = new CustomElementRegistry();
+  const hostDocument = document.implementation.createHTMLDocument();
+  registry.initialize(hostDocument);
+  assert_equals(hostDocument.customElementRegistry, registry);
+  const host = hostDocument.createElement('div');
+  assert_equals(host.customElementRegistry, registry);
+  const shadow = host.attachShadow({ mode: "closed", serializable: true, customElementRegistry: registry });
+  assert_equals(shadow.customElementRegistry, registry);
+  assert_equals(host.getHTML({ serializableShadowRoots: true }), `<template shadowrootmode="closed" shadowrootserializable="" shadowrootcustomelementregistry=""></template>`);
+}, "Serializing a scoped registry ShadowRoot with a scoped registry host (document)");
 
 test(() => {
   const registry = new CustomElementRegistry();