1 files changed, 39 insertions, 0 deletions
diff --git a/accessible/tests/browser/e10s/browser_treeupdate_removal.js b/accessible/tests/browser/e10s/browser_treeupdate_removal.js
new file mode 100644
index 000000000..9892bbcd6
--- /dev/null
+++ b/accessible/tests/browser/e10s/browser_treeupdate_removal.js
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+/* global EVENT_REORDER */
+
+loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
+
+addAccessibleTask('doc_treeupdate_removal.xhtml', function*(browser, accDoc) {
+  ok(isAccessible(findAccessibleChildByID(accDoc, 'the_table')),
+    'table should be accessible');
+
+  // Move the_table element into hidden subtree.
+  let onReorder = waitForEvent(EVENT_REORDER, 'body');
+  yield ContentTask.spawn(browser, {}, () => content.document.getElementById(
+    'the_displaynone').appendChild(content.document.getElementById(
+      'the_table')));
+  yield onReorder;
+
+  ok(!isAccessible(findAccessibleChildByID(accDoc, 'the_table')),
+    'table in display none tree shouldn\'t be accessible');
+  ok(!isAccessible(findAccessibleChildByID(accDoc, 'the_row')),
+    'row shouldn\'t be accessible');
+
+  // Remove the_row element (since it did not have accessible, no event needed).
+  yield ContentTask.spawn(browser, {}, () =>
+    content.document.body.removeChild(
+      content.document.getElementById('the_row')));
+
+  // make sure no accessibles have stuck around.
+  ok(!isAccessible(findAccessibleChildByID(accDoc, 'the_row')),
+    'row shouldn\'t be accessible');
+  ok(!isAccessible(findAccessibleChildByID(accDoc, 'the_table')),
+    'table shouldn\'t be accessible');
+  ok(!isAccessible(findAccessibleChildByID(accDoc, 'the_displayNone')),
+    'display none things shouldn\'t be accessible');
+});