protected function getEnvironmentSetUp($app)
{
$app['config']->set('database.default', 'testing');
$app['config']->set('database.connections.testing', ['driver' => 'sqlite', 'database' => ':memory:', 'prefix' => '']);
$app['config']->set('defender.user_model', 'Artesaos\\Defender\\Testing\\User');
$app['config']->set('defender.role_model', 'Artesaos\\Defender\\Role');
$app['config']->set('defender.permission_model', 'Artesaos\\Defender\\Permission');
$app['config']->set('auth.model', $app['config']->get('defender.user_model'));
}