public function testListAddressesByNetwork()
 {
     if (empty(self::$serverId)) {
         $this->markTestSkipped('The server ID is empty');
     }
     $addresses = $this->compute->listAddressesByNetwork(self::$serverId, 'public');
     $this->assertTrue(is_array($addresses));
     $this->assertTrue(isset($addresses['public']));
 }