diff -r 000000000000 -r 6474c204b198 browser/devtools/tilt/test/browser_tilt_utils02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/tilt/test/browser_tilt_utils02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,21 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+function test() {
+  let l10 = TiltUtils.L10n;
+  ok(l10, "The TiltUtils.L10n wasn't found.");
+
+
+  ok(l10.stringBundle,
+    "The necessary string bundle wasn't found.");
+  is(l10.get(), null,
+    "The get() function shouldn't work if no params are passed.");
+  is(l10.format(), null,
+    "The format() function shouldn't work if no params are passed.");
+
+  is(typeof l10.get("initWebGL.error"), "string",
+    "No valid string was returned from a corect name in the bundle.");
+  is(typeof l10.format("linkProgram.error", ["error"]), "string",
+    "No valid formatted string was returned from a name in the bundle.");
+}