1 files changed, 15 insertions, 0 deletions
diff --git a/testing/xpcshell/example/unit/test_prefs_no_defaults.js b/testing/xpcshell/example/unit/test_prefs_no_defaults.js
new file mode 100644
index 0000000000..f4516158b3
--- /dev/null
+++ b/testing/xpcshell/example/unit/test_prefs_no_defaults.js
@@ -0,0 +1,15 @@
+/* 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/. */
+
+function run_test() {
+  /* import-globals-from prefs_test_common.js */
+  load("prefs_test_common.js");
+
+  check_common_xpcshell_without_prefs();
+
+  Assert.ok(
+    !has_pref_from_manifest_file_section(),
+    "Should not have pref that was only assigned to a different test"
+  );
+}