/**
  * @dataProvider arabicExceptionProvider
  * @expectedException \InvalidArgumentException
  *
  * @param $number
  */
 public function test_statically_throw_exception_when_converting_roman_number_is_invalid($number)
 {
     Number::fromRoman($number);
 }
 public function getFilters()
 {
     return [new Twig_SimpleFilter('binarySuffix', function ($number) {
         return Number::binarySuffix($number);
     })];
 }