Index: modules/simpletest/drupal_web_test_case.php
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/drupal_web_test_case.php,v
retrieving revision 1.98
diff -u -r1.98 drupal_web_test_case.php
--- modules/simpletest/drupal_web_test_case.php	25 Apr 2009 22:35:49 -0000	1.98
+++ modules/simpletest/drupal_web_test_case.php	28 Apr 2009 02:45:34 -0000
@@ -671,9 +671,9 @@
    *   A fully loaded user object with pass_raw property, or FALSE if account
    *   creation fails.
    */
-  protected function drupalCreateUser($permissions = NULL) {
+  protected function drupalCreateUser($permissions = array('access comments', 'access content', 'post comments', 'post comments without approval')) {
     // Create a role with the given permission set.
-    if (!($rid = $this->_drupalCreateRole($permissions))) {
+    if (!($rid = $this->drupalCreateRole($permissions))) {
       return FALSE;
     }
 
@@ -705,12 +705,7 @@
    * @return
    *   Role ID of newly created role, or FALSE if role creation failed.
    */
-  protected function _drupalCreateRole(array $permissions = NULL) {
-    // Generate string version of permissions list.
-    if ($permissions === NULL) {
-      $permissions = array('access comments', 'access content', 'post comments', 'post comments without approval');
-    }
-
+  protected function drupalCreateRole(array $permissions) {
     if (!$this->checkPermissions($permissions)) {
       return FALSE;
     }