diff --git a/test/strings.js b/test/strings.js
index 61a12d93..c454e808 100644
--- a/test/strings.js
+++ b/test/strings.js
@@ -1,12 +1,19 @@
 (function() {
 
     module("strings");
+
     test("getSubString", function() {
         equal(OpenSeadragon.getString("Errors.Dzi"),
             "Hmm, this doesn't appear to be a valid Deep Zoom Image.",
             "Read sub-string");
     });
 
+    test("getStringWithPlaceholders", function() {
+        equal(OpenSeadragon.getString("Errors.Open-Failed", "foo", "bar"),
+              "Unable to open foo: bar",
+              "String placeholder replacement");
+    });
+
     test("getInvalidString", function() {
         equal(OpenSeadragon.getString("Greeting"), "",
             "Handled unset string key");