public function testDefaultPorts()
 {
     $uri = new PhutilURI('http://www.example.com');
     $this->assertEqual('80', $uri->getPortWithProtocolDefault());
     $uri = new PhutilURI('https://www.example.com');
     $this->assertEqual('443', $uri->getPortWithProtocolDefault());
     $uri = new PhutilURI('ssh://git@example.com/example/example.git');
     $this->assertEqual('22', $uri->getPortWithProtocolDefault());
     $uri = new PhutilURI('unknown://www.example.com');
     $this->assertEqual('', $uri->getPortWithProtocolDefault());
 }