only in patch2:
unchanged:
--- a/modules/simpletest/drupal_web_test_case.php
+++ b/modules/simpletest/drupal_web_test_case.php
@@ -1458,10 +1458,16 @@ class DrupalWebTestCase extends DrupalTestCase {
 
     // Include the testing profile.
     variable_set('install_profile', $this->profile);
-    $profile_details = install_profile_info($this->profile, 'en');
 
     // Install the modules specified by the testing profile.
-    module_enable($profile_details['dependencies'], FALSE);
+    $profiles = drupal_get_profiles($this->profile);
+    $profile_dependencies = array();
+
+    foreach ($profiles as $profile) {
+      $info = install_profile_info($profile);
+      $profile_dependencies = array_unique(array_merge($profile_dependencies, $info['dependencies']));
+    }
+    module_enable($profile_dependencies);
 
     // Install modules needed for this test. This could have been passed in as
     // either a single array argument or a variable number of string arguments.