diff --git a/modules/system/system.test b/modules/system/system.test
index 0542adf..a6c8e32 100644
--- a/modules/system/system.test
+++ b/modules/system/system.test
@@ -1247,6 +1247,7 @@ class DateTimeFunctionalTest extends DrupalWebTestCase {
   }
 
   function setUp() {
+    throw new Exception('This is a test exception during setup.');
     parent::setUp(array('locale'));
 
     // Create admin user and log in admin user.