/**
* test_naturalNumber method
*
* @return void
*/
public function test_naturalNumber()
{
$this->assertTrue(ApollonValidation::naturalNumber('12345'));
$this->assertTrue(ApollonValidation::naturalNumber('2147483647'));
$this->assertFalse(ApollonValidation::naturalNumber('-2147483647'));
$this->assertFalse(ApollonValidation::naturalNumber('2147483648'));
$this->assertFalse(ApollonValidation::naturalNumber('-2147483648'));
$this->assertTrue(ApollonValidation::naturalNumber('12345', false, '20000'));
$this->assertFalse(ApollonValidation::naturalNumber('12345', false, '12344'));
}
