diff --git a/test/strings.js b/test/strings.js
index c454e808..1c740a8a 100644
--- a/test/strings.js
+++ b/test/strings.js
@@ -1,6 +1,12 @@
+/* global module, asyncTest, $, ok, equal, notEqual, start, test, Util, testLog */
+
 (function() {
 
-    module("strings");
+    module("strings", {
+        setup: function () {
+            testLog.reset();
+        }
+    });
 
     test("getSubString", function() {
         equal(OpenSeadragon.getString("Errors.Dzi"),
@@ -15,10 +21,13 @@
     });
 
     test("getInvalidString", function() {
-        equal(OpenSeadragon.getString("Greeting"), "",
-            "Handled unset string key");
-        equal(OpenSeadragon.getString("Errors"), "",
-            "Handled requesting parent key");
+        equal(OpenSeadragon.getString("Greeting"), "", "Handled unset string key");
+        ok(testLog.debug.contains('["Untranslated source string:","Greeting"]'),
+                                  'Invalid string keys are logged');
+
+        equal(OpenSeadragon.getString("Errors"), "", "Handled requesting parent key");
+        ok(testLog.debug.contains('["Untranslated source string:","Errors"]'),
+                                  'Invalid string parent keys are logged');
     });
 
     test("setString", function() {