diff --git a/tests/model/MySQLiDriverTest.php b/tests/model/MySQLiDriverTest.php
index 878ded8..b9c9acb 100644
--- a/tests/model/MySQLiDriverTest.php
+++ b/tests/model/MySQLiDriverTest.php
@@ -22,6 +22,8 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
 
     private $conn = null;
 
+    private $conf = array();
+
     protected function getConnection()
     {
         if ($this->conn === null) {
@@ -31,6 +33,8 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             $this->conn = $this->createDefaultDBConnection(self::$pdo, $GLOBALS['DB_DBNAME']);
         }
 
+        $this->conf = array('hostname' => 'localhost', 'database' => $GLOBALS['DB_DBNAME'], 'username' => $GLOBALS['DB_USER'], 'password' => $GLOBALS['DB_PASSWD']);
+
         return $this->conn;
     }
 
@@ -51,8 +55,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
 
         $queryTable = $this->getConnection()->createQueryTable(
             'table', 'SELECT * FROM `table`'
@@ -71,8 +74,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
         $this->assertInstanceOf('mysqli', $driver->getConnection());
         $this->assertTrue($driver->isConnected());
     }
@@ -98,8 +100,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
 
         $driver->disconnect();
         $this->assertAttributeEquals(null, 'connection', $driver);
@@ -116,8 +117,8 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
+        
         $this->assertEquals(1, $driver->insert('table', array('id' => 3, 'user' => 'tony', 'content' => 'some test content', 'created' => '2011-11-07 11:35:20')));
         $this->assertEquals(3, $driver->getInsertId());
         $this->assertEquals(1, $driver->insert('table', array('id' => null, 'user' => 'tony', 'content' => 'some test content', 'created' => '2011-11-07 11:35:20')));
@@ -137,8 +138,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
 
         $this->assertEquals(1, $driver->insert('table', array('id' => 3, 'user' => 'tony', 'content' => 'some test content', 'created' => '2011-11-07 11:35:20')));
         $this->assertEquals(3, $driver->getInsertId());
@@ -150,8 +150,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
 
         $queryTable = $this->getConnection()->createQueryTable(
             'table', 'SELECT * FROM `table`'
@@ -182,8 +181,7 @@ class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
             define('DEBUG', false);
         }
 
-        $conf = array('hostname' => 'localhost', 'database' => 'testdb', 'username' => 'root', 'password' => '1234');
-        $driver = new MySQLiDriver($conf);
+        $driver = new MySQLiDriver($this->conf);
 
         $queryTable = $this->getConnection()->createQueryTable(
             'table', 'SELECT * FROM `table`'