public function case_to_lower()
{
$this->given($string = new LUT('Σ \'ΑΓΑΠΏ'))->when($result = $string->toLowerCase())->then->object($result)->isIdenticalTo($string)->string((string) $result)->isEqualTo('σ \'αγαπώ')->given($string = new LUT('JE T\'AIME'))->when($result = $string->toLowerCase())->then->object($result)->isIdenticalTo($string)->string((string) $result)->isEqualTo('je t\'aime');
}
