1 files changed, 24 insertions, 0 deletions
diff --git a/browser/components/places/tests/unit/test_invalid_defaultLocation.js b/browser/components/places/tests/unit/test_invalid_defaultLocation.js
new file mode 100644
index 0000000000..e533d051d0
--- /dev/null
+++ b/browser/components/places/tests/unit/test_invalid_defaultLocation.js
@@ -0,0 +1,24 @@
+/* Any copyright is dedicated to the Public Domain.
+ * https://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Test that if browser.bookmarks.defaultLocation contains an invalid GUID,
+ * PlacesUIUtils.defaultParentGuid will return a proper default value.
+ */
+
+add_task(async function () {
+  Services.prefs.setCharPref(
+    "browser.bookmarks.defaultLocation",
+    "useOtherBookmarks"
+  );
+
+  info(
+    "Checking that default parent guid was set back to the toolbar because of invalid preferable guid"
+  );
+  Assert.equal(
+    await PlacesUIUtils.defaultParentGuid,
+    PlacesUtils.bookmarks.toolbarGuid,
+    "Default parent guid is a toolbar guid"
+  );
+});