1 files changed, 49 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_941083_invalidate_wrapper_cache_createWidget.js b/browser/components/customizableui/test/browser_941083_invalidate_wrapper_cache_createWidget.js
new file mode 100644
index 0000000000..6df5084849
--- /dev/null
+++ b/browser/components/customizableui/test/browser_941083_invalidate_wrapper_cache_createWidget.js
@@ -0,0 +1,49 @@
+/* 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";
+
+// See https://bugzilla.mozilla.org/show_bug.cgi?id=941083
+
+const kWidgetId = "test-invalidate-wrapper-cache";
+
+// Check createWidget invalidates the widget cache
+add_task(function () {
+  let groupWrapper = CustomizableUI.getWidget(kWidgetId);
+  ok(groupWrapper, "Should get group wrapper.");
+  let singleWrapper = groupWrapper.forWindow(window);
+  ok(singleWrapper, "Should get single wrapper.");
+
+  CustomizableUI.createWidget({
+    id: kWidgetId,
+    label: "Test invalidating widgets caching",
+  });
+
+  let newGroupWrapper = CustomizableUI.getWidget(kWidgetId);
+  ok(newGroupWrapper, "Should get a group wrapper again.");
+  isnot(newGroupWrapper, groupWrapper, "Wrappers shouldn't be the same.");
+  isnot(
+    newGroupWrapper.provider,
+    groupWrapper.provider,
+    "Wrapper providers shouldn't be the same."
+  );
+
+  let newSingleWrapper = newGroupWrapper.forWindow(window);
+  isnot(
+    newSingleWrapper,
+    singleWrapper,
+    "Single wrappers shouldn't be the same."
+  );
+  isnot(
+    newSingleWrapper.provider,
+    singleWrapper.provider,
+    "Single wrapper providers shouldn't be the same."
+  );
+
+  CustomizableUI.destroyWidget(kWidgetId);
+  ok(
+    !CustomizableUI.getWidget(kWidgetId),
+    "Shouldn't get a wrapper after destroying the widget."
+  );
+});