tor-browser

commit 6e1ef36f5c6e54f49d0effca7db4c0d7fec97a9d
parent 2d6e07bdf0ea001d5fdd3dbf1946b31cf964627a
Author: Stalgia Grigg <stalgia@bocoup.com>
Date:   Fri, 19 Dec 2025 09:19:16 +0000

Bug 2006705 [wpt PR 56818] - Map `mutationobserver` web-feature, a=testonly

Automatic update from web-platform-tests
Map `mutationobserver` web-feature

Feature: `mutationobserver`
Reference: https://github.com/web-platform-dx/web-features/blob/main/features/mutationobserver.yml

Notable exclusions

1. CSSOM Integration Tests
    - `css/cssom/cssstyledeclaration-mutationrecord-*.html`
    - These tests verify that CSSOM operations queue mutation records. While they verify an interaction with MutationObserver, the primary focus is on the CSSOM behavior (specifying when records are queued).

2. Cross-cutting concerns
    - `custom-elements/*`: Custom element reactions and microtasks.
    - `shadow-dom/*`: Shadow DOM slot changes and declarative shadow DOM.
    - `trusted-types/*`: Trusted Types assignment.
    - `web-animations/*`: Animation commitStyles.
    - `webdriver/*`: WebDriver BiDi tests.
    - `html/webappapis/*`: Microtask queuing and execution order.

Notable inclusions

1. `css/cssom/MutationObserver-style.html`
    - Explicitly tests "Observer notifications when updating styles", which is testing the observer's ability to observe style attribute mutations.

--

wpt-commits: a7d98ceb3d588912683d532c96e9117021d5feed
wpt-pr: 56818

Diffstat:
M
testing/web-platform/tests/css/cssom/WEB_FEATURES.yml
 | 
3
+++
A
testing/web-platform/tests/dom/nodes/WEB_FEATURES.yml
 | 
4
++++

2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/testing/web-platform/tests/css/cssom/WEB_FEATURES.yml b/testing/web-platform/tests/css/cssom/WEB_FEATURES.yml
@@ -28,3 +28,6 @@ features:
 - name: font-variant
   files:
   - font-variant-shorthand-serialization.html
+- name: mutationobserver
+  files:
+  - MutationObserver-style.html
diff --git a/testing/web-platform/tests/dom/nodes/WEB_FEATURES.yml b/testing/web-platform/tests/dom/nodes/WEB_FEATURES.yml
@@ -0,0 +1,4 @@
+features:
+- name: mutationobserver
+  files:
+  - MutationObserver-*