public function testSetGetLang()
{
$oLang = new oxLang();
$oLang->setBaseLanguage(0);
$oPayPalIPNRequestValidator = new oePayPalIPNPaymentValidator();
$oPayPalIPNRequestValidator->setLang($oLang);
$this->assertEquals($oLang, $oPayPalIPNRequestValidator->getLang(), 'Getter should return same as set in setter.');
}