/**
* @dataProvider isHexadecimalProvider()
*/
public function testIsHexadecimal($expected, $str, $encoding = null)
{
$result = S::isHexadecimal($str, $encoding);
$this->assertInternalType('boolean', $result);
$this->assertEquals($expected, $result);
}
public function isHexadecimal($string)
{
return Stringy::isHexadecimal($string);
}