public function testGetCurrentLanguage()
{
$configModel = new Config($this->container);
$this->assertEquals('en_US', $configModel->getCurrentLanguage());
$this->container['sessionStorage']->user = array('language' => 'fr_FR');
$this->assertEquals('fr_FR', $configModel->getCurrentLanguage());
$this->container['sessionStorage']->user = array('language' => 'xx_XX');
$this->assertEquals('xx_XX', $configModel->getCurrentLanguage());
}