Index: modules/simpletest/tests/session_test.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/tests/session_test.module,v
retrieving revision 1.15
diff -u -p -r1.15 session_test.module
--- modules/simpletest/tests/session_test.module	4 Dec 2009 16:49:47 -0000	1.15
+++ modules/simpletest/tests/session_test.module	18 Apr 2010 22:06:32 -0000
@@ -165,3 +165,11 @@ function session_test_drupal_goto_alter(
     $path = $base_insecure_url . '/' . $path;
   }
 }
+
+/**
+ * Implementation of hook_exit().
+ */
+function session_test_exit() {
+  // This will run on logout when hook_exit is called by drupal_exit. 
+  $_SESSION['session_test_exit'] = 'test';
+}