1 files changed, 20 insertions, 0 deletions
diff --git a/browser/components/installerprefs/test/unit/test_empty_prefs_list.js b/browser/components/installerprefs/test/unit/test_empty_prefs_list.js
new file mode 100644
index 0000000000..e9807546a9
--- /dev/null
+++ b/browser/components/installerprefs/test/unit/test_empty_prefs_list.js
@@ -0,0 +1,20 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+/**
+ * Test passing an empty list of pref names to the module.
+ */
+
+add_task(function () {
+  const PREFS_LIST = [];
+
+  startModule(PREFS_LIST);
+
+  Assert.throws(
+    getRegistryKey,
+    /NS_ERROR_FAILURE/,
+    "The registry key shouldn't have been created, so opening it should fail"
+  );
+});