func startNATSServer(context *cli.Context) (e *stand.StanServer, err error) {
eventsURL, err := url.Parse(context.GlobalString("events-address"))
if err != nil {
return nil, err
}
no := stand.DefaultNatsServerOptions
nOpts := &no
nOpts.NoSigs = true
parts := strings.Split(eventsURL.Host, ":")
nOpts.Host = parts[0]
if len(parts) == 2 {
nOpts.Port, err = strconv.Atoi(parts[1])
} else {
nOpts.Port = nats.DefaultPort
}
defer func() {
if r := recover(); r != nil {
e = nil
if _, ok := r.(error); !ok {
err = fmt.Errorf("failed to start NATS server: %v", r)
} else {
err = r.(error)
}
}
}()
s := stand.RunServerWithOpts(nil, nOpts)
return s, nil
}
func TestMaxChannels(t *testing.T) {
// Set a small number of max channels
opts := server.GetDefaultOptions()
opts.ID = clusterName
opts.MaxChannels = 10
// Run a NATS Streaming server
s := server.RunServerWithOpts(opts, nil)
defer s.Shutdown()
sc := NewDefaultConnection(t)
defer sc.Close()
hw := []byte("Hello World")
var subject string
// These all should work fine
for i := 0; i < opts.MaxChannels; i++ {
subject = fmt.Sprintf("CHAN-%d", i)
sc.PublishAsync(subject, hw, nil)
}
// This one should error
if err := sc.Publish("CHAN_MAX", hw); err == nil {
t.Fatalf("Expected an error signalling too many channels\n")
}
}