1 files changed, 30 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_892956_destroyWidget_defaultPlacements.js b/browser/components/customizableui/test/browser_892956_destroyWidget_defaultPlacements.js
new file mode 100644
index 0000000000..7ad68e16d0
--- /dev/null
+++ b/browser/components/customizableui/test/browser_892956_destroyWidget_defaultPlacements.js
@@ -0,0 +1,30 @@
+/* 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";
+
+const kWidgetId = "test-892956-destroyWidget-defaultPlacement";
+
+// destroyWidget should clean up defaultPlacements if the widget had a defaultArea
+add_task(async function () {
+  ok(
+    CustomizableUI.inDefaultState,
+    "Should be in the default state when we start"
+  );
+
+  let widgetSpec = {
+    id: kWidgetId,
+    defaultArea: CustomizableUI.AREA_NAVBAR,
+  };
+  CustomizableUI.createWidget(widgetSpec);
+  CustomizableUI.destroyWidget(kWidgetId);
+  ok(
+    CustomizableUI.inDefaultState,
+    "Should be in the default state when we finish"
+  );
+});
+
+add_task(async function asyncCleanup() {
+  await resetCustomization();
+});