diff --git a/tests/DoctrineTest/Doctrine_UnitTestCase.php b/tests/DoctrineTest/Doctrine_UnitTestCase.php
index 4657c7ba..c9b891c0 100644
--- a/tests/DoctrineTest/Doctrine_UnitTestCase.php
+++ b/tests/DoctrineTest/Doctrine_UnitTestCase.php
@@ -228,12 +228,7 @@ public function prepareTables() {
             }
         }
 
-        foreach ($this->tables as $table) {
-            try {
-                $this->conn->export->exportClasses(array($table));
-            } catch (Doctrine_Export_Exception $e) {
-            }
-        }
+        $this->conn->export->exportClasses($this->tables);
 
         $this->objTable = $this->connection->getTable('User');
     }
@@ -319,6 +314,12 @@ protected function openAndBindMysqlConnection()
         $this->dbh = new PDO(getenv('MYSQL_DSN'));
 
         $this->conn = $this->connection = $this->openAdditionalConnection($this->dbh);
+
+        $this->exc = new Doctrine_Connection_Mysql_Exception();
+
+        $this->unitOfWork = $this->connection->unitOfWork;
+        $this->connection->setListener(new Doctrine_EventListener());
+        $this->query = new Doctrine_Query($this->connection);
     }
 
     protected function openAdditionalConnection($adapter = null, $name = null)
diff --git a/tests/MigrationTestCase.php b/tests/MigrationTestCase.php
index 4bb3dbe9..31641d7d 100644
--- a/tests/MigrationTestCase.php
+++ b/tests/MigrationTestCase.php
@@ -32,13 +32,11 @@
  */
 class Doctrine_Migration_TestCase extends Doctrine_UnitTestCase
 {
-    public function prepareTables()
-    {
-        $this->tables[] = 'MigrationPhonenumber';
-        $this->tables[] = 'MigrationUser';
-        $this->tables[] = 'MigrationProfile';
-        parent::prepareTables();
-    }
+    protected $tables = array(
+        'MigrationPhonenumber',
+        'MigrationUser',
+        'MigrationProfile',
+    );
 
     public function testMigration()
     {