diff --git a/tests/util/ktutil/testAddQueryString.php b/tests/util/ktutil/testAddQueryString.php
new file mode 100644
index 0000000..9876f8e
--- /dev/null
+++ b/tests/util/ktutil/testAddQueryString.php
@@ -0,0 +1,21 @@
+<?php
+
+require_once("../../../config/dmsDefaults.php");
+require_once(KT_LIB_DIR . "/util/ktutil.inc");
+
+$aTestVals = array(
+    "http://foo.bar/foo.php?foo=bar" => array("http://foo.bar/foo.php", "foo=bar"),
+    "http://foo.bar/foo.php?foo=bar&bar=baz" => array("http://foo.bar/foo.php?foo=bar", "bar=baz"),
+    "http://foo.bar/foo.php?foo=bar&bar=baz&baz=quux" => array("http://foo.bar/foo.php?foo=bar", "bar=baz&baz=quux"),
+    "http://foo.bar/foo.php" => array("http://foo.bar/foo.php", ""),
+);
+
+foreach ($aTestVals as $sExpected => $aArgs) {
+    $sResult = KTUtil::addQueryString($aArgs[0], $aArgs[1]);
+    if ($sResult !== $sExpected) {
+        print "FAIL!\n";
+        print "Expected: $sExpected\n";
+        print "Received: $sResult\n";
+    }
+}
+