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package tests
import (
"io/ioutil"
"math/rand"
"os"
"testing"
"time"
"github.com/la5nta/wl2k-go/fbb"
"github.com/la5nta/wl2k-go/mailbox"
"github.com/la5nta/wl2k-go/transport/telnet"
)
type Station struct {
Callsign string
MBox *mailbox.DirHandler
path string
}
func (s *Station) Cleanup() {
os.Remove(s.path)
}
func (s *Station) ListenTelnet() (string, <-chan error, error) {
errors := make(chan error, 10)
ln, err := telnet.Listen("localhost:0")
if err != nil {
return "", nil, err
}
go func() {
defer ln.Close()
conn, err := ln.Accept()
if err != nil {
errors <- err
return
}
defer conn.Close()
conn.SetDeadline(time.Now().Add(time.Minute))
s := fbb.NewSession(s.Callsign, conn.(*telnet.Conn).RemoteCall(), "", s.MBox)
s.IsMaster(true)
if _, err := s.Exchange(conn); err != nil {
errors <- err
return
}
close(errors)
}()
return ln.Addr().String(), errors, nil
}
func NewTempStation(callsign string) (*Station, error) {
path, err := ioutil.TempDir("", callsign)
if err != nil {
return nil, err
}
mbox := mailbox.NewDirHandler(path, false)
mbox.Prepare()
return &Station{
Callsign: callsign,
MBox: mbox,
path: path,
}, nil
}
func TestMultiBlockAllDeferred(t *testing.T) {
alice, _ := NewTempStation("N0DE1")
defer alice.Cleanup()
bob, _ := NewTempStation("N0DE2")
defer bob.Cleanup()
// Add 6 outbound messages
msgs := NewRandomMessages(6, alice.Callsign, bob.Callsign)
for _, msg := range msgs {
alice.MBox.AddOut(msg)
}
// Fake msgs already delivered
bob.MBox.ProcessInbound(msgs...)
// Start alice as telnet listener
addr, errors, err := alice.ListenTelnet()
if err != nil {
t.Fatalf("Unable to start listener: %s", err)
}
// Connect to alice from bob via telnet
conn, err := telnet.Dial(addr, bob.Callsign, "")
if err != nil {
t.Fatalf("Unable to connect to listener: %s", err)
}
defer conn.Close()
conn.SetDeadline(time.Now().Add(time.Minute))
s := fbb.NewSession(bob.Callsign, bob.Callsign, "", bob.MBox)
if _, err := s.Exchange(conn); err != nil {
t.Fatalf("Exchange failed at connecting node: %s", err)
}
select {
case err, ok := <-errors:
if !ok {
break // No error occurred
}
t.Fatalf("Exchange failed at listening node: %s", err)
case <-time.After(time.Minute):
t.Fatalf("Test timeout!")
}
if alice.MBox.OutboxCount() != 0 {
t.Errorf("Unexpected QTC in %s's mailbox. Expected 0.", alice.Callsign)
}
}
func NewRandomMessages(n int, from, to string) []*fbb.Message {
msgs := make([]*fbb.Message, n)
for i := 0; i < n; i++ {
msgs[i] = NewRandomMessage(from, to)
}
return msgs
}
func NewRandomMessage(from, to string) *fbb.Message {
msg := fbb.NewMessage(fbb.Private, from)
msg.AddTo(to)
msg.SetSubject(RandStringRunes(10))
msg.SetBody(RandStringRunes(100))
return msg
}
func init() {
rand.Seed(time.Now().UnixNano())
}
var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
func RandStringRunes(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letterRunes[rand.Intn(len(letterRunes))]
}
return string(b)
}
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