Bug 1936820 [wpt PR 49653] - moveBefore: fail when moving across root…

…s, a=testonly

Automatic update from web-platform-tests
moveBefore: fail when moving across roots

This applies the recent spec conversation in
whatwg/dom#1307 (comment)
where the moved & parent node have to be in the same
shadow-including root, not only in the same document.

Bug: 40150299
Change-Id: Ic4daa6e863a8e96061ad9bebad2264202d87f722
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6088082
Commit-Queue: Noam Rosenthal <[email protected]>
Reviewed-by: Dominic Farolino <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1395407}

--

wpt-commits: e26600a08505dbdf907bce572f97c2f560b3bc29
wpt-pr: 49653

testing/web-platform/tests/dom/nodes/moveBefore/tentative/Node-moveBefore.html

@@ -253,10 +253,34 @@
   const disconnectedDestination = document.createElement('div');
   const p = disconnectedOrigin.appendChild(document.createElement('p'));
 
+  assert_throws_dom("HIERARCHY_REQUEST_ERR", () => {
+    disconnectedDestination.moveBefore(p, null);
+  });
+}, "Moving a node from a disconnected container to a disconnected new parent " +
+   "without a shared ancestor throws a HIERARCHY_REQUEST_ERR");
+
+test(() => {
+  const disconnectedOrigin = document.createElement('div');
+  const disconnectedDestination = disconnectedOrigin.appendChild(document.createElement('div'));
+  const p = disconnectedOrigin.appendChild(document.createElement('p'));
+
+  disconnectedDestination.moveBefore(p, null);
+
+  assert_equals(disconnectedDestination.firstChild, p, "<p> Was successfully moved");
+}, "Moving a node from a disconnected container to a disconnected new parent in the same tree succeeds");
+
+test(() => {
+  const disconnectedOrigin = document.createElement('div');
+  const disconnectedHost = disconnectedOrigin.appendChild(document.createElement('div'));
+  const p = disconnectedOrigin.appendChild(document.createElement('p'));
+  const shadow = disconnectedHost.attachShadow({mode: "closed"});
+  const disconnectedDestination = shadow.appendChild(document.createElement('div'));
+
   disconnectedDestination.moveBefore(p, null);
 
   assert_equals(disconnectedDestination.firstChild, p, "<p> Was successfully moved");
-}, "Moving a node from a disconnected container to a disconnected new parent succeeds");
+}, "Moving a node from a disconnected container to a disconnected new parent in the same tree succeeds," +
+   "also across shadow-roots");
 
 test(() => {
   const disconnectedOrigin = document.createElement('div');
@@ -285,7 +309,7 @@
     });
 
   const oldParent = document.createElement('div');
-  const newParent = document.createElement('div');
+  const newParent = oldParent.appendChild(document.createElement('div'));
   const element = oldParent.appendChild(document.createElement(element_name));
   t.add_cleanup(() => {
     element.remove();