diff --git a/middleware/singleflight/singleflight.go b/middleware/singleflight/singleflight.go
index 50199927d..08359fc30 100644
--- a/middleware/singleflight/singleflight.go
+++ b/middleware/singleflight/singleflight.go
@@ -3,9 +3,9 @@ package singleflight
 import (
 	"context"
 	"fmt"
-	"github.com/go-kratos/kratos/v2/transport"
 
 	"github.com/go-kratos/kratos/v2/middleware"
+	"github.com/go-kratos/kratos/v2/transport"
 	"golang.org/x/sync/singleflight"
 )
 
diff --git a/middleware/singleflight/singleflight_test.go b/middleware/singleflight/singleflight_test.go
index 0627342cf..9e54703f8 100644
--- a/middleware/singleflight/singleflight_test.go
+++ b/middleware/singleflight/singleflight_test.go
@@ -2,12 +2,13 @@ package singleflight
 
 import (
 	"context"
-	"github.com/go-kratos/kratos/v2/middleware"
-	"github.com/go-kratos/kratos/v2/transport"
-	"github.com/go-kratos/kratos/v2/transport/grpc"
 	"sync"
 	"testing"
 	"time"
+
+	"github.com/go-kratos/kratos/v2/middleware"
+	"github.com/go-kratos/kratos/v2/transport"
+	"github.com/go-kratos/kratos/v2/transport/grpc"
 )
 
 type testVali struct {
@@ -20,13 +21,13 @@ type Transport2 struct {
 	op string
 }
 
-func (t Transport2) Operation()string{
+func (t Transport2) Operation() string {
 	return t.op
 }
 
-//测试使用单飞时
+// 测试使用单飞时
 func TestUse(t *testing.T) {
-	var mu    sync.Mutex
+	var mu sync.Mutex
 	var callNum int
 
 	var mock middleware.Handler = func(ctx context.Context, req interface{}) (interface{}, error) {
@@ -34,32 +35,32 @@ func TestUse(t *testing.T) {
 		mu.Lock()
 		callNum++
 		mu.Unlock()
-		time.Sleep(1*time.Second)
+		time.Sleep(1 * time.Second)
 		return in.out, nil
 	}
 
 	tests := []testVali{
-		{"1",1},
-		{"2",2},
-		{"2",2},
-		{"3",3},
-		{"3",3},
-		{"3",3},
+		{"1", 1},
+		{"2", 2},
+		{"2", 2},
+		{"3", 3},
+		{"3", 3},
+		{"3", 3},
 	}
 	var wg sync.WaitGroup
 	for _, test := range tests {
 		wg.Add(1)
 		go func(te testVali) {
 			t.Run(te.in, func(t *testing.T) {
-				v := SingleFlight("test")(mock)//注册
-				tr := &Transport2{op:"test"}
-				ctx:=transport.NewServerContext(context.Background(),tr)
+				v := SingleFlight("test")(mock) //注册
+				tr := &Transport2{op: "test"}
+				ctx := transport.NewServerContext(context.Background(), tr)
 				re, err := v(ctx, te)
-				if err!=nil{
+				if err != nil {
 					t.Error(err)
 				}
-				if re!=te.out{
-					t.Errorf("err: %v",te)
+				if re != te.out {
+					t.Errorf("err: %v", te)
 				}
 				wg.Done()
 			})
@@ -70,16 +71,15 @@ func TestUse(t *testing.T) {
 
 	//最后计算总调用次数
 	t.Run("callNum", func(t *testing.T) {
-		if callNum!=3{
-			t.Errorf("callNum err: %v",callNum)
+		if callNum != 3 {
+			t.Errorf("callNum err: %v", callNum)
 		}
 	})
 }
 
-
-//测试不使用单飞时
+// 测试不使用单飞时
 func TestNoUse(t *testing.T) {
-	var mu    sync.Mutex
+	var mu sync.Mutex
 	var callNum int
 
 	var mock middleware.Handler = func(ctx context.Context, req interface{}) (interface{}, error) {
@@ -87,32 +87,32 @@ func TestNoUse(t *testing.T) {
 		mu.Lock()
 		callNum++
 		mu.Unlock()
-		time.Sleep(1*time.Second)
+		time.Sleep(1 * time.Second)
 		return in.out, nil
 	}
 
 	tests := []testVali{
-		{"1",1},
-		{"2",2},
-		{"2",2},
-		{"3",3},
-		{"3",3},
-		{"3",3},
+		{"1", 1},
+		{"2", 2},
+		{"2", 2},
+		{"3", 3},
+		{"3", 3},
+		{"3", 3},
 	}
 	var wg sync.WaitGroup
 	for _, test := range tests {
 		wg.Add(1)
 		go func(te testVali) {
 			t.Run(te.in, func(t *testing.T) {
-				v := SingleFlight()(mock)//移除注册
-				tr := &Transport2{op:"test"}
-				ctx:=transport.NewServerContext(context.Background(),tr)
+				v := SingleFlight()(mock) //移除注册
+				tr := &Transport2{op: "test"}
+				ctx := transport.NewServerContext(context.Background(), tr)
 				re, err := v(ctx, te)
-				if err!=nil{
+				if err != nil {
 					t.Error(err)
 				}
-				if re!=te.out{
-					t.Errorf("err: %v",te)
+				if re != te.out {
+					t.Errorf("err: %v", te)
 				}
 				wg.Done()
 			})
@@ -123,8 +123,8 @@ func TestNoUse(t *testing.T) {
 
 	//最后计算总调用次数
 	t.Run("callNum", func(t *testing.T) {
-		if callNum!=6{
-			t.Errorf("callNum err: %v",callNum)
+		if callNum != 6 {
+			t.Errorf("callNum err: %v", callNum)
 		}
 	})
-}
\ No newline at end of file
+}