diff -r 000000000000 -r 6474c204b198 services/sync/tests/unit/test_utils_lazyStrings.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/services/sync/tests/unit/test_utils_lazyStrings.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+Cu.import("resource://services-common/stringbundle.js");
+Cu.import("resource://services-sync/util.js");
+
+function run_test() {
+    let fn = Utils.lazyStrings("sync");
+    do_check_eq(typeof fn, "function");
+    let bundle = fn();
+    do_check_true(bundle instanceof StringBundle);
+    let url = bundle.url;
+    do_check_eq(url, "chrome://weave/locale/services/sync.properties");
+}