thanks! finally 
my MAMP config can be found here: http://stackoverflow.com/questions/4232084/phpunit-xdebug-codecoverage-not-working-in-console-mac-mamp-1-9-pro
protected/config/main.php
<?php
// uncomment the following to define a path alias
// Yii::setPathOfAlias('local','path/to/local-folder');
// This is the main Web application configuration. Any writable
// CWebApplication properties can be configured here.
return array(
'basePath'=>dirname(__FILE__).DIRECTORY_SEPARATOR.'..',
'name'=>'My Web Application',
// preloading 'log' component
'preload'=>array('log'),
// autoloading model and component classes
'import'=>array(
'application.models.*',
'application.components.*',
),
'modules'=>array(
'gii'=>array(
'class'=>'system.gii.GiiModule', 'password'=>'1234qwer',
),
),
// application components
'components'=>array(
'user'=>array(
// enable cookie-based authentication
'allowAutoLogin'=>true,
),
// uncomment the following to enable URLs in path-format
/*
'urlManager'=>array(
'urlFormat'=>'path',
'rules'=>array(
'<controller:\w+>/<id:\d+>'=>'<controller>/view',
'<controller:\w+>/<action:\w+>/<id:\d+>'=>'<controller>/<action>',
'<controller:\w+>/<action:\w+>'=>'<controller>/<action>',
),
),
*/
'db'=>array(
//'class'=>'CDbConnection',
'connectionString' => 'mysql:host=localhost;dbname=yii_trackstar_dev;port=8889;',
'emulatePrepare' => true,
'username' => 'root',
'password' => 'root',
'charset' => 'utf8',
),
/*
'db'=>array(
'connectionString' => 'sqlite:'.dirname(__FILE__).'/../data/testdrive.db',
),
*/
// uncomment the following to use a MySQL database
'errorHandler'=>array(
// use 'site/error' action to display errors
'errorAction'=>'site/error',
),
'log'=>array(
'class'=>'CLogRouter',
'routes'=>array(
array(
'class'=>'CFileLogRoute',
'levels'=>'error, warning',
),
// uncomment the following to show log messages on web pages
/*
array(
'class'=>'CWebLogRoute',
),
*/
),
),
),
// application-level parameters that can be accessed
// using Yii::app()->params['paramName']
'params'=>array(
// this is used in contact page
'adminEmail'=>'test@test.no',
),
);
protected/config/test.php
<?php
return CMap::mergeArray(
require(dirname(__FILE__).'/main.php'),
array(
'components'=>array(
'fixture'=>array(
'class'=>'system.test.CDbFixtureManager',
),
'db'=>array(
'connectionString' => 'mysql:host=localhost;dbname=yii_trackstar_dev;port=8889;',
'emulatePrepare' => true,
'username' => 'root',
'password' => 'root',
'charset' => 'utf8',
),
),
)
);
DbTest.php
<?php
class DbTest extends CTestCase
{
/*
* Test if we have database driver active
*/
public function testConnection()
{
$this->assertNotEquals(NULL, Yii::app()->db);
}
}
