diff --git a/api/service/manager_test.go b/api/service/manager_test.go
index dee7facaa..8574e11df 100644
--- a/api/service/manager_test.go
+++ b/api/service/manager_test.go
@@ -8,7 +8,9 @@ import (
 	msg_pb "github.com/harmony-one/harmony/api/proto/message"
 )
 
-type SupportSyncingTest struct{}
+type SupportSyncingTest struct {
+	msgChan chan *msg_pb.Message
+}
 
 func (s *SupportSyncingTest) StartService() {
 	fmt.Println("SupportSyncingTest starting")
@@ -19,9 +21,14 @@ func (s *SupportSyncingTest) StopService() {
 }
 
 func (s *SupportSyncingTest) NotifyService(data map[string]interface{}) {
-	fmt.Println("SupportSyncingTest being notified")
+	t := data["test"].(*testing.T)
+
+	if s.msgChan != data["chan"].(chan *msg_pb.Message) {
+		t.Error("message chan is not equal to the one from the passing params")
+	}
 }
 func (s *SupportSyncingTest) SetMessageChan(msgChan chan *msg_pb.Message) {
+	s.msgChan = msgChan
 }
 
 // Test TakeAction.
@@ -39,3 +46,22 @@ func TestTakeAction(t *testing.T) {
 
 	m.SendAction(&Action{ServiceType: Done})
 }
+
+func TestMessageChan(t *testing.T) {
+	m := &Manager{}
+	m.SetupServiceManager()
+	m.RegisterService(SupportSyncing, &SupportSyncingTest{})
+	msgChans := make(map[Type]chan *msg_pb.Message)
+	m.SetupServiceMessageChan(msgChans)
+
+	m.SendAction(&Action{
+		Action:      Notify,
+		ServiceType: SupportSyncing,
+		Params: map[string]interface{}{
+			"chan": msgChans[SupportSyncing],
+			"test": t,
+		},
+	})
+
+	m.SendAction(&Action{ServiceType: Done})
+}