public function testMehtod()
{
$code = 'class Sample {static function sample($a) {}} Sample::sample();';
$this->assertNotSpot($code);
$code = 'class Sample {static function sample($a, $b) {}} Sample::sample(1, 2);';
$this->assertNotSpot($code);
$code = 'class Sample {static function sample($a, &$b) {}} Sample::sample(1, 2);';
$this->assertHasSpot($code);
$code = 'class Sample {static function sample($a, &$b) {}} sAMPLE::saMPLe(1, 2);';
$this->assertHasSpot($code);
}