diff --git a/Makefile b/Makefile
index 77ee21a82..79e6cda2e 100644
--- a/Makefile
+++ b/Makefile
@@ -89,7 +89,7 @@ test:
 .PHONY: test-coverage
 test-coverage:
 	@${TOOLS_SHELL} test_coverage
-	@echo "go test with coverage finished"	
+	@echo "go test with coverage finished"
 
 .PHONY: lint
 lint: $(LINTER)
diff --git a/transport/http/client_test.go b/transport/http/client_test.go
index 9a0dd7829..119c8c0bf 100644
--- a/transport/http/client_test.go
+++ b/transport/http/client_test.go
@@ -10,13 +10,12 @@ import (
 	"io"
 	"log"
 	"net/http"
-	nethttp "net/http"
 	"reflect"
 	"strconv"
 	"testing"
 	"time"
 
-	kratosErrors "github.com/go-kratos/kratos/v2/errors"
+	kratoserrors "github.com/go-kratos/kratos/v2/errors"
 	"github.com/go-kratos/kratos/v2/middleware"
 	"github.com/go-kratos/kratos/v2/registry"
 	"github.com/go-kratos/kratos/v2/selector"
@@ -24,7 +23,7 @@ import (
 
 type mockRoundTripper struct{}
 
-func (rt *mockRoundTripper) RoundTrip(req *nethttp.Request) (resp *nethttp.Response, err error) {
+func (rt *mockRoundTripper) RoundTrip(req *http.Request) (resp *http.Response, err error) {
 	return
 }
 
@@ -129,7 +128,7 @@ func TestWithRequestEncoder(t *testing.T) {
 
 func TestWithResponseDecoder(t *testing.T) {
 	o := &clientOptions{}
-	v := func(ctx context.Context, res *nethttp.Response, out interface{}) error { return nil }
+	v := func(ctx context.Context, res *http.Response, out interface{}) error { return nil }
 	WithResponseDecoder(v)(o)
 	if o.decoder == nil {
 		t.Errorf("expected encoder to be not nil")
@@ -138,7 +137,7 @@ func TestWithResponseDecoder(t *testing.T) {
 
 func TestWithErrorDecoder(t *testing.T) {
 	o := &clientOptions{}
-	v := func(ctx context.Context, res *nethttp.Response) error { return nil }
+	v := func(ctx context.Context, res *http.Response) error { return nil }
 	WithErrorDecoder(v)(o)
 	if o.errorDecoder == nil {
 		t.Errorf("expected encoder to be not nil")
@@ -199,27 +198,24 @@ func TestWithNodeFilter(t *testing.T) {
 }
 
 func TestDefaultRequestEncoder(t *testing.T) {
-	req1 := &nethttp.Request{
-		Header: make(nethttp.Header),
-		Body:   io.NopCloser(bytes.NewBufferString("{\"a\":\"1\", \"b\": 2}")),
-	}
-	req1.Header.Set("Content-Type", "application/xml")
+	r, _ := http.NewRequest(http.MethodPost, "", io.NopCloser(bytes.NewBufferString(`{"a":"1", "b": 2}`)))
+	r.Header.Set("Content-Type", "application/xml")
 
 	v1 := &struct {
 		A string `json:"a"`
 		B int64  `json:"b"`
 	}{"a", 1}
-	b, err1 := DefaultRequestEncoder(context.TODO(), "application/json", v1)
-	if err1 != nil {
-		t.Errorf("expected no error, got %v", err1)
+	b, err := DefaultRequestEncoder(context.TODO(), "application/json", v1)
+	if err != nil {
+		t.Fatal(err)
 	}
 	v1b := &struct {
 		A string `json:"a"`
 		B int64  `json:"b"`
 	}{}
-	err1 = json.Unmarshal(b, v1b)
-	if err1 != nil {
-		t.Errorf("expected no error, got %v", err1)
+	err = json.Unmarshal(b, v1b)
+	if err != nil {
+		t.Fatal(err)
 	}
 	if !reflect.DeepEqual(v1b, v1) {
 		t.Errorf("expected %v, got %v", v1, v1b)
@@ -227,8 +223,8 @@ func TestDefaultRequestEncoder(t *testing.T) {
 }
 
 func TestDefaultResponseDecoder(t *testing.T) {
-	resp1 := &nethttp.Response{
-		Header:     make(nethttp.Header),
+	resp1 := &http.Response{
+		Header:     make(http.Header),
 		StatusCode: 200,
 		Body:       io.NopCloser(bytes.NewBufferString("{\"a\":\"1\", \"b\": 2}")),
 	}
@@ -236,19 +232,19 @@ func TestDefaultResponseDecoder(t *testing.T) {
 		A string `json:"a"`
 		B int64  `json:"b"`
 	}{}
-	err1 := DefaultResponseDecoder(context.TODO(), resp1, &v1)
-	if err1 != nil {
-		t.Errorf("expected no error, got %v", err1)
+	err := DefaultResponseDecoder(context.TODO(), resp1, &v1)
+	if err != nil {
+		t.Fatal(err)
 	}
-	if !reflect.DeepEqual("1", v1.A) {
+	if v1.A != "1" {
 		t.Errorf("expected %v, got %v", "1", v1.A)
 	}
-	if !reflect.DeepEqual(int64(2), v1.B) {
+	if v1.B != int64(2) {
 		t.Errorf("expected %v, got %v", 2, v1.B)
 	}
 
-	resp2 := &nethttp.Response{
-		Header:     make(nethttp.Header),
+	resp2 := &http.Response{
+		Header:     make(http.Header),
 		StatusCode: 200,
 		Body:       io.NopCloser(bytes.NewBufferString("{badjson}")),
 	}
@@ -256,22 +252,22 @@ func TestDefaultResponseDecoder(t *testing.T) {
 		A string `json:"a"`
 		B int64  `json:"b"`
 	}{}
-	err2 := DefaultResponseDecoder(context.TODO(), resp2, &v2)
-	terr1 := &json.SyntaxError{}
-	if !errors.As(err2, &terr1) {
-		t.Errorf("expected %v, got %v", terr1, err2)
+	err = DefaultResponseDecoder(context.TODO(), resp2, &v2)
+	syntaxErr := &json.SyntaxError{}
+	if !errors.As(err, &syntaxErr) {
+		t.Errorf("expected %v, got %v", syntaxErr, err)
 	}
 }
 
 func TestDefaultErrorDecoder(t *testing.T) {
 	for i := 200; i < 300; i++ {
-		resp := &nethttp.Response{Header: make(nethttp.Header), StatusCode: i}
+		resp := &http.Response{Header: make(http.Header), StatusCode: i}
 		if DefaultErrorDecoder(context.TODO(), resp) != nil {
 			t.Errorf("expected no error, got %v", DefaultErrorDecoder(context.TODO(), resp))
 		}
 	}
-	resp1 := &nethttp.Response{
-		Header:     make(nethttp.Header),
+	resp1 := &http.Response{
+		Header:     make(http.Header),
 		StatusCode: 300,
 		Body:       io.NopCloser(bytes.NewBufferString("{\"foo\":\"bar\"}")),
 	}
@@ -279,28 +275,28 @@ func TestDefaultErrorDecoder(t *testing.T) {
 		t.Errorf("expected error, got nil")
 	}
 
-	resp2 := &nethttp.Response{
-		Header:     make(nethttp.Header),
+	resp2 := &http.Response{
+		Header:     make(http.Header),
 		StatusCode: 500,
 		Body:       io.NopCloser(bytes.NewBufferString("{\"code\":54321, \"message\": \"hi\", \"reason\": \"FOO\"}")),
 	}
-	err2 := DefaultErrorDecoder(context.TODO(), resp2)
-	if err2 == nil {
+	err := DefaultErrorDecoder(context.TODO(), resp2)
+	if err == nil {
 		t.Errorf("expected error, got nil")
 	}
-	if !reflect.DeepEqual(int32(500), err2.(*kratosErrors.Error).Code) {
-		t.Errorf("expected %v, got %v", 500, err2.(*kratosErrors.Error).Code)
+	if err.(*kratoserrors.Error).Code != int32(500) {
+		t.Errorf("expected %v, got %v", 500, err.(*kratoserrors.Error).Code)
 	}
-	if !reflect.DeepEqual("hi", err2.(*kratosErrors.Error).Message) {
-		t.Errorf("expected %v, got %v", "hi", err2.(*kratosErrors.Error).Message)
+	if err.(*kratoserrors.Error).Message != "hi" {
+		t.Errorf("expected %v, got %v", "hi", err.(*kratoserrors.Error).Message)
 	}
-	if !reflect.DeepEqual("FOO", err2.(*kratosErrors.Error).Reason) {
-		t.Errorf("expected %v, got %v", "FOO", err2.(*kratosErrors.Error).Reason)
+	if err.(*kratoserrors.Error).Reason != "FOO" {
+		t.Errorf("expected %v, got %v", "FOO", err.(*kratoserrors.Error).Reason)
 	}
 }
 
 func TestCodecForResponse(t *testing.T) {
-	resp := &nethttp.Response{Header: make(nethttp.Header)}
+	resp := &http.Response{Header: make(http.Header)}
 	resp.Header.Set("Content-Type", "application/xml")
 	c := CodecForResponse(resp)
 	if !reflect.DeepEqual("xml", c.Name()) {
@@ -346,7 +342,7 @@ func TestNewClient(t *testing.T) {
 		}),
 	)
 	if err != nil {
-		t.Error(err)
+		t.Fatal(err)
 	}
 
 	err = client.Invoke(context.Background(), http.MethodPost, "/go", map[string]string{"name": "kratos"}, nil, EmptyCallOption{}, &mockCallOption{})
diff --git a/transport/http/codec_test.go b/transport/http/codec_test.go
index b701b70fc..8efd23322 100644
--- a/transport/http/codec_test.go
+++ b/transport/http/codec_test.go
@@ -3,53 +3,50 @@ package http
 import (
 	"bytes"
 	"io"
-	nethttp "net/http"
-	"reflect"
+	"net/http"
 	"testing"
 
 	"github.com/go-kratos/kratos/v2/errors"
 )
 
 func TestDefaultRequestDecoder(t *testing.T) {
-	bodyString := "{\"a\":\"1\", \"b\": 2}"
-
-	req1 := &nethttp.Request{
-		Header: make(nethttp.Header),
-		Body:   io.NopCloser(bytes.NewBufferString(bodyString)),
-	}
-	req1.Header.Set("Content-Type", "application/json")
+	var (
+		bodyStr = `{"a":"1", "b": 2}`
+		r, _    = http.NewRequest(http.MethodPost, "", io.NopCloser(bytes.NewBufferString(bodyStr)))
+	)
+	r.Header.Set("Content-Type", "application/json")
 
 	v1 := &struct {
 		A string `json:"a"`
 		B int64  `json:"b"`
 	}{}
-	err1 := DefaultRequestDecoder(req1, &v1)
-	if err1 != nil {
-		t.Errorf("expected no error, got %v", err1)
+	err := DefaultRequestDecoder(r, &v1)
+	if err != nil {
+		t.Fatal(err)
 	}
-	if !reflect.DeepEqual("1", v1.A) {
+	if v1.A != "1" {
 		t.Errorf("expected %v, got %v", "1", v1.A)
 	}
-	if !reflect.DeepEqual(int64(2), v1.B) {
+	if v1.B != int64(2) {
 		t.Errorf("expected %v, got %v", 2, v1.B)
 	}
 
-	data, err := io.ReadAll(req1.Body)
+	data, err := io.ReadAll(r.Body)
 	if err != nil {
-		t.Errorf("expected no error, got %v", err1)
+		t.Fatal(err)
 	}
-	if !reflect.DeepEqual([]byte(bodyString), data) {
-		t.Errorf("expected %v, got %v", bodyString, data)
+	if bodyStr != string(data) {
+		t.Errorf("expected %v, got %v", bodyStr, string(data))
 	}
 }
 
 type mockResponseWriter struct {
 	StatusCode int
 	Data       []byte
-	header     nethttp.Header
+	header     http.Header
 }
 
-func (w *mockResponseWriter) Header() nethttp.Header {
+func (w *mockResponseWriter) Header() http.Header {
 	return w.header
 }
 
@@ -62,27 +59,28 @@ func (w *mockResponseWriter) WriteHeader(statusCode int) {
 	w.StatusCode = statusCode
 }
 
-type dataWithStatusCode struct {
-	A string `json:"a"`
-	B int64  `json:"b"`
-}
-
 func TestDefaultResponseEncoder(t *testing.T) {
-	w := &mockResponseWriter{StatusCode: 200, header: make(nethttp.Header)}
-	req1 := &nethttp.Request{
-		Header: make(nethttp.Header),
-	}
-	req1.Header.Set("Content-Type", "application/json")
-
-	v1 := &dataWithStatusCode{A: "1", B: 2}
-	err := DefaultResponseEncoder(w, req1, v1)
+	var (
+		w    = &mockResponseWriter{StatusCode: 200, header: make(http.Header)}
+		r, _ = http.NewRequest(http.MethodPost, "", nil)
+		v    = &struct {
+			A string `json:"a"`
+			B int64  `json:"b"`
+		}{
+			A: "1",
+			B: 2,
+		}
+	)
+	r.Header.Set("Content-Type", "application/json")
+
+	err := DefaultResponseEncoder(w, r, v)
 	if err != nil {
-		t.Errorf("expected no error, got %v", err)
+		t.Fatal(err)
 	}
-	if !reflect.DeepEqual("application/json", w.Header().Get("Content-Type")) {
+	if w.Header().Get("Content-Type") != "application/json" {
 		t.Errorf("expected %v, got %v", "application/json", w.Header().Get("Content-Type"))
 	}
-	if !reflect.DeepEqual(200, w.StatusCode) {
+	if w.StatusCode != 200 {
 		t.Errorf("expected %v, got %v", 200, w.StatusCode)
 	}
 	if w.Data == nil {
@@ -90,19 +88,19 @@ func TestDefaultResponseEncoder(t *testing.T) {
 	}
 }
 
-func TestDefaultResponseEncoderWithError(t *testing.T) {
-	w := &mockResponseWriter{header: make(nethttp.Header)}
-	req := &nethttp.Request{
-		Header: make(nethttp.Header),
-	}
-	req.Header.Set("Content-Type", "application/json")
+func TestDefaultErrorEncoder(t *testing.T) {
+	var (
+		w    = &mockResponseWriter{header: make(http.Header)}
+		r, _ = http.NewRequest(http.MethodPost, "", nil)
+		err  = errors.New(511, "", "")
+	)
+	r.Header.Set("Content-Type", "application/json")
 
-	se := errors.New(511, "", "")
-	DefaultErrorEncoder(w, req, se)
-	if !reflect.DeepEqual("application/json", w.Header().Get("Content-Type")) {
+	DefaultErrorEncoder(w, r, err)
+	if w.Header().Get("Content-Type") != "application/json" {
 		t.Errorf("expected %v, got %v", "application/json", w.Header().Get("Content-Type"))
 	}
-	if !reflect.DeepEqual(511, w.StatusCode) {
+	if w.StatusCode != 511 {
 		t.Errorf("expected %v, got %v", 511, w.StatusCode)
 	}
 	if w.Data == nil {
@@ -111,20 +109,20 @@ func TestDefaultResponseEncoderWithError(t *testing.T) {
 }
 
 func TestDefaultResponseEncoderEncodeNil(t *testing.T) {
-	w := &mockResponseWriter{StatusCode: 204, header: make(nethttp.Header)}
-	req1 := &nethttp.Request{
-		Header: make(nethttp.Header),
-	}
-	req1.Header.Set("Content-Type", "application/json")
+	var (
+		w    = &mockResponseWriter{StatusCode: 204, header: make(http.Header)}
+		r, _ = http.NewRequest(http.MethodPost, "", io.NopCloser(bytes.NewBufferString("<xml></xml>")))
+	)
+	r.Header.Set("Content-Type", "application/json")
 
-	err := DefaultResponseEncoder(w, req1, nil)
+	err := DefaultResponseEncoder(w, r, nil)
 	if err != nil {
-		t.Errorf("expected no error, got %v", err)
+		t.Fatal(err)
 	}
-	if !reflect.DeepEqual("", w.Header().Get("Content-Type")) {
+	if w.Header().Get("Content-Type") != "" {
 		t.Errorf("expected empty string, got %v", w.Header().Get("Content-Type"))
 	}
-	if !reflect.DeepEqual(204, w.StatusCode) {
+	if w.StatusCode != 204 {
 		t.Errorf("expected %v, got %v", 204, w.StatusCode)
 	}
 	if w.Data != nil {
@@ -133,31 +131,23 @@ func TestDefaultResponseEncoderEncodeNil(t *testing.T) {
 }
 
 func TestCodecForRequest(t *testing.T) {
-	req1 := &nethttp.Request{
-		Header: make(nethttp.Header),
-		Body:   io.NopCloser(bytes.NewBufferString("<xml></xml>")),
-	}
-	req1.Header.Set("Content-Type", "application/xml")
-
-	c, ok := CodecForRequest(req1, "Content-Type")
+	r, _ := http.NewRequest(http.MethodPost, "", io.NopCloser(bytes.NewBufferString("<xml></xml>")))
+	r.Header.Set("Content-Type", "application/xml")
+	c, ok := CodecForRequest(r, "Content-Type")
 	if !ok {
-		t.Errorf("expected true, got %v", ok)
+		t.Fatalf("expected true, got %v", ok)
 	}
-	if !reflect.DeepEqual("xml", c.Name()) {
+	if c.Name() != "xml" {
 		t.Errorf("expected %v, got %v", "xml", c.Name())
 	}
 
-	req2 := &nethttp.Request{
-		Header: make(nethttp.Header),
-		Body:   io.NopCloser(bytes.NewBufferString("{\"a\":\"1\", \"b\": 2}")),
-	}
-	req2.Header.Set("Content-Type", "blablablabla")
-
-	c, ok = CodecForRequest(req2, "Content-Type")
+	r, _ = http.NewRequest(http.MethodPost, "", io.NopCloser(bytes.NewBufferString(`{"a":"1", "b": 2}`)))
+	r.Header.Set("Content-Type", "blablablabla")
+	c, ok = CodecForRequest(r, "Content-Type")
 	if ok {
-		t.Errorf("expected false, got %v", ok)
+		t.Fatalf("expected false, got %v", ok)
 	}
-	if !reflect.DeepEqual("json", c.Name()) {
+	if c.Name() != "json" {
 		t.Errorf("expected %v, got %v", "json", c.Name())
 	}
 }