diff --git a/core/grpc/server/server.go b/core/grpc/server/server.go
index 404116c7..cc1e4953 100644
--- a/core/grpc/server/server.go
+++ b/core/grpc/server/server.go
@@ -173,3 +173,7 @@ func GetGrpcServer() *GrpcServer {
 	})
 	return _server
 }
+
+func NewGrpcServer() *GrpcServer {
+	return newGrpcServer()
+}
diff --git a/core/models/client/model_service_test.go b/core/models/client/model_service_test.go
index d1c5c2a8..950a14ea 100644
--- a/core/models/client/model_service_test.go
+++ b/core/models/client/model_service_test.go
@@ -45,7 +45,7 @@ func stopSvr(svr *server.GrpcServer) {
 func TestModelService_GetById(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -72,7 +72,7 @@ func TestModelService_GetById(t *testing.T) {
 func TestModelService_GetOne(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -99,7 +99,7 @@ func TestModelService_GetOne(t *testing.T) {
 func TestModelService_GetMany(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -127,7 +127,7 @@ func TestModelService_GetMany(t *testing.T) {
 func TestModelService_DeleteById(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -156,7 +156,7 @@ func TestModelService_DeleteById(t *testing.T) {
 func TestModelService_DeleteOne(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -185,7 +185,7 @@ func TestModelService_DeleteOne(t *testing.T) {
 func TestModelService_DeleteMany(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -214,7 +214,7 @@ func TestModelService_DeleteMany(t *testing.T) {
 func TestModelService_UpdateById(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -243,7 +243,7 @@ func TestModelService_UpdateById(t *testing.T) {
 func TestModelService_UpdateOne(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -272,7 +272,7 @@ func TestModelService_UpdateOne(t *testing.T) {
 func TestModelService_UpdateMany(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -305,7 +305,7 @@ func TestModelService_UpdateMany(t *testing.T) {
 func TestModelService_ReplaceById(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -335,7 +335,7 @@ func TestModelService_ReplaceById(t *testing.T) {
 func TestModelService_ReplaceOne(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -365,7 +365,7 @@ func TestModelService_ReplaceOne(t *testing.T) {
 func TestModelService_InsertOne(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -388,7 +388,7 @@ func TestModelService_InsertOne(t *testing.T) {
 func TestModelService_InsertMany(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)
 
@@ -414,7 +414,7 @@ func TestModelService_InsertMany(t *testing.T) {
 func TestModelService_Count(t *testing.T) {
 	setupTestDB()
 	defer teardownTestDB()
-	svr := server.GetGrpcServer()
+	svr := server.NewGrpcServer()
 	go startSvr(svr)
 	defer stopSvr(svr)