main.go

// Mock TCP communication using rathena models to test behavior and to
// benchmark performance of key operations.
//
// While most settings are configurable via cli flags, there is currently
// no change in behavior when changing the Packet Version used, whereas  in
// the future we may need flags to validate alternative command structures and
// permutations of request/response model to support various client versions.
package integration

import (
	"flag"
	"math/rand"
	"time"
)

// Constant set of accepted characters for RO names.
const AcceptedNameCharacters = "abcdefghijklmnopqrstuvwxyz0123456789"

// Client type sane default is 0.
const ClientType uint8 = 0

// Configurable options for running tests and benchmarks.
var packetVerInput = flag.Int("packetVer", 55, "numeric packet version in clientinfo.xml")
var clientVerInput = flag.Int("clientVer", 20151029, "date format packet version used by rathena at compile time")
var loginAddress = flag.String("loginAddress", "127.0.0.1:6900", "address for the login server")
var charAddress = flag.String("charAddress", "127.0.0.1:6121", "address for the char server")
var charCredentials = flag.String("charCredentials", "ragnarok:ragnarok", "colon separated credentials for a mock char server")
var mapAddress = flag.String("mapAddress", "127.0.0.1:5121", "address for the map server")

// The packet version is required as uint8.
var packetVer uint32 = uint32(*packetVerInput)

// The username is randomly generated by init, and password is static.
var password string = "secret"
var username string

// Preseed random and generate a username from accepted characters
func init() {
	rand.Seed(time.Now().UTC().UnixNano())
	username = randomName()
}

// Create a random name between 4 and 14 characters
// using only alphanumeric characters.
func randomName() string {
	max := rand.Intn(10) + 4
	name := make([]byte, max)
	for i := 0; i < max; i++ {
		name[i] = AcceptedNameCharacters[rand.Intn(len(AcceptedNameCharacters))]
	}
	return string(name)
}