CustomElements: adoptedCallback should be invoked in tree order
3.3 For each inclusiveDescendant in node’s shadow-including inclusive
descendants, in shadow-including tree order, run the adopting steps
with inclusiveDescendant and oldDocument.
BUG=594918
Review-Url: https://codereview.chromium.org/2247663002
Cr-Commit-Position: refs/heads/master@{#412167}
diff --git a/third_party/WebKit/LayoutTests/custom-elements/spec/adopt-node.html b/third_party/WebKit/LayoutTests/custom-elements/spec/adopt-node.html
index 4ef1a13..023fb83 100644
--- a/third_party/WebKit/LayoutTests/custom-elements/spec/adopt-node.html
+++ b/third_party/WebKit/LayoutTests/custom-elements/spec/adopt-node.html
@@ -8,7 +8,7 @@
<script>
'use strict'
-// 3.2 For each inclusiveDescendant in node’s shadow-including inclusive descendants that is a custom
+// 3.2 For each inclusiveDescendant in node’s shadow-including inclusive descendants that is a custom
// element, enqueue a custom element callback reaction with inclusiveDescendant,
// callback name "adoptedCallback", and an empty argument list.
promise_test((t) => {
@@ -26,5 +26,32 @@
assert_array_equals_callback_invocations(invocations, [ ['adopted', a, []] ]);
});
}, 'adopting a custom element to the different document should enqueue an adoptedCallback reaction');
+
+// 3.3 For each inclusiveDescendant in node’s shadow-including inclusive descendants, in
+// shadow-including tree order, run the adopting steps with inclusiveDescendant and oldDocument.
+promise_test((t) => {
+ return Promise.all([
+ create_window_in_test(t),
+ create_window_in_test(t)])
+ .then(([w1, w2]) => {
+ w1.document.body.innerHTML = `
+ <a-a id="a">
+ <p>
+ <a-a id="b"></a-a>
+ <a-a id="c"></a-a>
+ </p>
+ <a-a id="d"></a-a>
+ </a-a>`;
+ let invocations = [];
+ class X extends w1.HTMLElement {
+ adoptedCallback() { invocations.push(this); }
+ }
+ w1.customElements.define('a-a', X);
+ let a = w1.document.getElementById("a");
+ w2.document.adoptNode(a);
+ assert_array_equals(['a', 'b', 'c', 'd'], invocations.map((e) => e.id),
+ 'four elements should have been removed in doc order');
+ });
+}, 'shadow-including inclusive descendants should be adopted in shadow-including tree order');
</script>
</body>
