From 42adf2e1ecce64f052ff4594cb975076dbc04b0f Mon Sep 17 00:00:00 2001
From: Dan Clark <daniec@microsoft.com>
Date: Wed, 1 Sep 2021 14:03:56 +0000
Subject: [PATCH] Bug 1727160 [wpt PR 30130] - [selectmenu] Handle synthetic
 keyboard event, a=testonly

Automatic update from web-platform-tests
[selectmenu] Handle synthetic keyboard event

An event created with createEvent can trigger selectmenu's keydown
handlers, but will fail the cast to a KeyboardEvent. Check for this
case and bail out to prevent a crash.

Bug: 1242148
Change-Id: I5fc1aa430f89fdb76b270f0aaffdbe2eb358b86b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3114727
Reviewed-by: Mason Freed <masonf@chromium.org>
Reviewed-by: Ionel Popescu <iopopesc@microsoft.com>
Commit-Queue: Dan Clark <daniec@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#914506}

--

wpt-commits: ea4b3c2a066761983830175df7f9312d2baf8c1e
wpt-pr: 30130
---
 .../selectmenu-keyboard.tentative.html                     | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/testing/web-platform/tests/html/semantics/forms/the-selectmenu-element/selectmenu-keyboard.tentative.html b/testing/web-platform/tests/html/semantics/forms/the-selectmenu-element/selectmenu-keyboard.tentative.html
index bb69c3555129..9f8debc3ea28 100644
--- a/testing/web-platform/tests/html/semantics/forms/the-selectmenu-element/selectmenu-keyboard.tentative.html
+++ b/testing/web-platform/tests/html/semantics/forms/the-selectmenu-element/selectmenu-keyboard.tentative.html
@@ -5,14 +5,17 @@
 <script src="/resources/testdriver.js"></script>
 <script src="/resources/testdriver-actions.js"></script>
 <script src="/resources/testdriver-vendor.js"></script>
-<selectmenu id="selectMenu0">
+  <selectmenu id="selectMenu0">
     <div id="selectMenu0-button0" slot="button" part="button" tabindex="0">button</div>
     <option>one</option>
     <option>two</option>
     <option>three</option>
   </selectmenu>
-<script>
 
+  <selectmenu id="selectMenu1">
+    <option id="selectMenu1-child0">one</option>
+  </selectmenu>
+<script>
 // See https://w3c.github.io/webdriver/#keyboard-actions
 const KEY_CODE_MAP = {
   'Enter':      '\uE007',
@@ -70,4 +73,11 @@ promise_test(async t => {
   await test_driver.send_keys(selectMenu, KEY_CODE_MAP.Enter);
   assert_false(selectMenu.open, "Enter key should close selectmenu");
 }, "Validate Enter, Up/Down Arrow, and Space keyboard accessibility support for <selecmenu>");
+
+promise_test(async t => {
+  const selectMenuOption = document.getElementById("selectMenu1-child0");
+  const event = document.createEvent("Event");
+  event.initEvent("keydown");
+  selectMenuOption.dispatchEvent(event);
+}, "Firing a synthetic event at a selectmenu's option doesn't crash");
 </script>
-- 
2.11.4.GIT