func TestNats4(t *testing.T) {
//t.SkipNow()
// Connection
nc, _ := nats.Connect(nats.DefaultURL)
defer nc.Close()
// Replies
nc.Subscribe("help", func(m *nats.Msg) {
nc.Publish(m.Reply, []byte("I can help!"))
})
wg := &sync.WaitGroup{}
wg.Add(1)
// Requests
go func() {
count := 0
for {
msg, err := nc.Request("help", []byte("help me"), 10*time.Millisecond)
if err == nil {
lg.Debugf("message is %s", msg.Data)
}
count++
if count == 100 {
wg.Done()
break
}
}
}()
//wait
wg.Wait()
}
func TestNats3(t *testing.T) {
t.SkipNow()
var msg *nats.Msg
//msg := &nats.Msg{}
// Connection
nc, _ := nats.Connect(nats.DefaultURL)
defer nc.Close()
// Channel Subscriber
ch := make(chan *nats.Msg, 64)
sub, err := nc.ChanSubscribe(subjectName3, ch)
if err != nil {
t.Errorf("ChanSubscribe() error: %s", err)
}
wg := &sync.WaitGroup{}
wg.Add(1)
// Publisher
go func() {
count := 0
for {
nc.Publish(subjectName3, []byte("Hello World"))
count++
if count == 100 {
lg.Debug("finished publish")
break
}
}
}()
// Subscriber
go func() {
count := 0
for {
//invalid operation: msg <- ch (send to non-chan type *"github.com/nats-io/nats".Msg)
msg = <-ch
lg.Debugf("message is %s", msg.Data)
count++
if count == 100 {
wg.Done()
break
}
}
}()
//wait
wg.Wait()
// Unsubscribe
sub.Unsubscribe()
}
func TestNats2(t *testing.T) {
t.SkipNow()
// Connection
nc, _ := nats.Connect(nats.DefaultURL)
defer nc.Close()
// Sync Subscriber
sub, err := nc.SubscribeSync(subjectName2)
if err != nil {
t.Errorf("SubscribeSync() error: %s", err)
}
wg := &sync.WaitGroup{}
wg.Add(1)
// Publisher
go func() {
count := 0
for {
nc.Publish(subjectName2, []byte("Hello World"))
count++
if count == 100 {
break
}
}
}()
// Subscriber
go func() {
count := 0
for {
m, err := sub.NextMsg(time.Second * 1)
if err == nil {
lg.Debugf("message is %s", m.Data)
count++
if count == 100 {
wg.Done()
break
}
}
}
}()
//wait
wg.Wait()
}