public function getPortTestCases()
{
return [['http', null, true], ['http', 80, true], ['http', 8080, false], ['https', null, true], ['https', 443, true], ['https', 444, false], ['ftp', 21, true], ['gopher', 70, true], ['nntp', 119, true], ['news', 119, true], ['telnet', 23, true], ['tn3270', 23, true], ['imap', 143, true], ['pop', 110, true], ['ldap', 389, true]];
}