public function testModifyConfig()
{
$db = new MockDatabase(array('host' => '127.0.0.1', 'login' => 'bob'));
$expected = array('persistent' => true, 'host' => '127.0.0.1', 'login' => 'bob', 'password' => '', 'database' => null, 'autoConnect' => true, 'init' => true);
$result = $db->testConfig();
$this->assertEqual($expected, $result);
}