public function testLocalIpv4()
{
$this->assertNotFalse(filter_var(Internet::localIpv4(), FILTER_VALIDATE_IP, FILTER_FLAG_IPV4));
}
public function testLocalIpv4()
{
$range1 = '(10)(\\.(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])|[1][0-9][0-9]|[1-9][0-9]|[0-9])){3}';
$range2 = '(192)\\.(168)(\\.(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])|[1][0-9][0-9]|[1-9][0-9]|[0-9])){2}';
$this->assertRegExp('/^' . $range1 . '|' . $range2 . '$/', Internet::localIpv4());
}
