Fix incorrect tree construction by the AAA

shimashimashi · chromium-wpt-export-bot · commit d965d8bf7067 · 2021-09-16T10:43:11.000-07:00
Prior to this CL, the following code: <code some-attribute> <div> <code> <code> <code> <code> </code> </code> </code> </code> parsed to this: <code some-attribute></code> <div> <code some-attribute> <code> <code> <code> <code> </code> </code> </code> </code> </code> </div> The adoption agency algorithm reparented the div tag though code tags were properly nested. A step was added to the spec[1] in order to fix this, but not implemented in Chromium. This CL implements it. [1] https://www.w3.org/Bugs/Public/show_bug.cgi?id=24833 Fixed: 1217523 Change-Id: I2ce1ada69d37305041468b9c10f59e6238e9a209 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3162497 Commit-Queue: Mason Freed <masonf@chromium.org> Reviewed-by: Mason Freed <masonf@chromium.org> Cr-Commit-Position: refs/heads/main@{#922189}
diff --git a/html/syntax/parsing/adoption_agency_check_the_end_tag_name.html b/html/syntax/parsing/adoption_agency_check_the_end_tag_name.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>The adoption agency algorithm should check the end tag's name</title>
+<link rel="author" href="mailto:n4ag3a2sh1i@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/parsing.html#adoption-agency-algorithm">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+
+<script>
+'use strict';
+
+// This is a regression test for https://crbug.com/1217523.
+test(() => {
+  const wrapper = document.createElement('div');
+  const html = '<code some-attribute=""><div><code><code><code><code></code></code></code></code></div></code>';
+  wrapper.innerHTML = html;
+  assert_equals(wrapper.innerHTML, html);
+}, 'The algorithm should not reparent properly nested tags');
+
+</script>
