Add base

internal/testutil/testutil.go

@@ -0,0 +1,27 @@
+package testutil
+
+import (
+	"os"
+
+	"github.com/nats-io/nats-server/v2/server"
+	natsserver "github.com/nats-io/nats-server/v2/test"
+)
+
+func NewNatsServer(port int) *server.Server {
+	opts := natsserver.DefaultTestOptions
+	opts.Port = port
+	opts.JetStream = true
+	return natsserver.RunServer(&opts)
+}
+
+func ShutdownNatsServer(s *server.Server) {
+	var sd string
+	if config := s.JetStreamConfig(); config != nil {
+		sd = config.StoreDir
+	}
+	s.Shutdown()
+	if sd != "" {
+		os.RemoveAll(sd)
+	}
+	s.WaitForShutdown()
+}