When an unexpected exception occurs, it is not clear what the type of the exception is.

Suggestion:

Index: tests/DoctrineTest/GroupTest.php
===================================================================
--- tests/DoctrineTest/GroupTest.php    (revision 5109)
+++ tests/DoctrineTest/GroupTest.php    (working copy)
@@ -49,7 +49,7 @@
                 $testCase->run();
             } catch(Exception $e) {
                 $this->_failed += 1;
-                $this->_messages[] = 'Unexpected exception thrown in [' . get_class($testCase) . '] with message [' . $e->getMessage() . '] in ' . $e->getFile() . ' on line ' . $e->getLine() . "

Trace
-------------

" . $e->getTraceAsString();;
+                $this->_messages[] = 'Unexpected ' . get_class($e) . ' thrown in [' . get_class($testCase) . '] with message [' . $e->getMessage() . '] in ' . $e->getFile() . ' on line ' . $e->getLine() . "

Trace
-------------

" . $e->getTraceAsString();;

             }
             $this->_passed += $testCase->getPassCount();