diff --git a/tests/PHPUnit_Smarty.php b/tests/PHPUnit_Smarty.php
index 88cec7dd..825e957b 100644
--- a/tests/PHPUnit_Smarty.php
+++ b/tests/PHPUnit_Smarty.php
@@ -557,6 +557,20 @@ KEY `expire` (`expire`)
         }
     }
 
+    /**
+     * prefilter to insert test number
+     *
+     * @param  string                   $source
+     * @param \Smarty_Internal_Template $tpl
+     *
+     * @return string
+     */
+    public function prefilterTest($source, Smarty_Internal_Template $tpl)
+    {
+        return str_replace('#test#', "test:{\$test nocache} compiled:{$tpl->getTemplateVars('test')} rendered:{\$test}",
+                           $source);
+    }
+
     /**
      * Tears down the fixture
      * This method is called after a test is executed.