diff --git a/pkg/filesystem/hooks_test.go b/pkg/filesystem/hooks_test.go
index 231c790..ece638e 100644
--- a/pkg/filesystem/hooks_test.go
+++ b/pkg/filesystem/hooks_test.go
@@ -9,11 +9,16 @@ import (
 	"github.com/HFO4/cloudreve/pkg/conf"
 	"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
 	"github.com/HFO4/cloudreve/pkg/filesystem/local"
+	"github.com/HFO4/cloudreve/pkg/request"
 	"github.com/HFO4/cloudreve/pkg/serializer"
 	"github.com/jinzhu/gorm"
 	"github.com/stretchr/testify/assert"
 	testMock "github.com/stretchr/testify/mock"
+	"io"
+	"io/ioutil"
+	"net/http"
 	"os"
+	"strings"
 	"testing"
 )
 
@@ -540,3 +545,51 @@ func TestHookSlaveUploadValidate(t *testing.T) {
 	}
 
 }
+
+type ClientMock struct {
+	testMock.Mock
+}
+
+func (m ClientMock) Request(method, target string, body io.Reader, opts ...request.Option) request.Response {
+	args := m.Called(method, target, body, opts)
+	return args.Get(0).(request.Response)
+}
+
+func TestSlaveAfterUpload(t *testing.T) {
+	asserts := assert.New(t)
+	conf.SystemConfig.Mode = "slave"
+	fs, err := NewAnonymousFileSystem()
+	conf.SystemConfig.Mode = "master"
+	asserts.NoError(err)
+
+	// 成功
+	{
+		clientMock := ClientMock{}
+		clientMock.On(
+			"Request",
+			"POST",
+			"http://test/callbakc",
+			testMock.Anything,
+			testMock.Anything,
+		).Return(request.Response{
+			Err: nil,
+			Response: &http.Response{
+				StatusCode: 200,
+				Body:       ioutil.NopCloser(strings.NewReader(`{"code":0}`)),
+			},
+		})
+		request.GeneralClient = clientMock
+		ctx := context.WithValue(context.Background(), fsctx.FileHeaderCtx, local.FileStream{
+			Size:        10,
+			VirtualPath: "/my",
+			Name:        "test.txt",
+		})
+		ctx = context.WithValue(ctx, fsctx.UploadPolicyCtx, serializer.UploadPolicy{
+			CallbackURL: "http://test/callbakc",
+		})
+		ctx = context.WithValue(ctx, fsctx.SavePathCtx, "/not_exist")
+		err := SlaveAfterUpload(ctx, fs)
+		clientMock.AssertExpectations(t)
+		asserts.NoError(err)
+	}
+}
diff --git a/pkg/request/callback.go b/pkg/request/callback.go
index 24ac229..d438832 100644
--- a/pkg/request/callback.go
+++ b/pkg/request/callback.go
@@ -19,7 +19,7 @@ func RemoteCallback(url string, body serializer.UploadCallback) error {
 		return serializer.NewError(serializer.CodeCallbackError, "无法编码回调正文", err)
 	}
 
-	resp := generalClient.Request(
+	resp := GeneralClient.Request(
 		"POST",
 		url,
 		bytes.NewReader(callbackBody),
diff --git a/pkg/request/callback_test.go b/pkg/request/callback_test.go
index b8e527c..67e4d99 100644
--- a/pkg/request/callback_test.go
+++ b/pkg/request/callback_test.go
@@ -33,7 +33,7 @@ func TestRemoteCallback(t *testing.T) {
 				Body:       ioutil.NopCloser(bytes.NewReader(mockResp)),
 			},
 		})
-		generalClient = clientMock
+		GeneralClient = clientMock
 		resp := RemoteCallback("http://test/test/url", serializer.UploadCallback{
 			SourceName: "source",
 		})
@@ -58,7 +58,7 @@ func TestRemoteCallback(t *testing.T) {
 				Body:       ioutil.NopCloser(bytes.NewReader(mockResp)),
 			},
 		})
-		generalClient = clientMock
+		GeneralClient = clientMock
 		resp := RemoteCallback("http://test/test/url", serializer.UploadCallback{
 			SourceName: "source",
 		})
@@ -82,7 +82,7 @@ func TestRemoteCallback(t *testing.T) {
 				Body:       ioutil.NopCloser(strings.NewReader("mockResp")),
 			},
 		})
-		generalClient = clientMock
+		GeneralClient = clientMock
 		resp := RemoteCallback("http://test/test/url", serializer.UploadCallback{
 			SourceName: "source",
 		})
@@ -106,7 +106,7 @@ func TestRemoteCallback(t *testing.T) {
 				Body:       ioutil.NopCloser(strings.NewReader("mockResp")),
 			},
 		})
-		generalClient = clientMock
+		GeneralClient = clientMock
 		resp := RemoteCallback("http://test/test/url", serializer.UploadCallback{
 			SourceName: "source",
 		})
@@ -126,7 +126,7 @@ func TestRemoteCallback(t *testing.T) {
 		).Return(Response{
 			Err: errors.New("error"),
 		})
-		generalClient = clientMock
+		GeneralClient = clientMock
 		resp := RemoteCallback("http://test/test/url", serializer.UploadCallback{
 			SourceName: "source",
 		})
diff --git a/pkg/request/request.go b/pkg/request/request.go
index fc4e9e1..e25585c 100644
--- a/pkg/request/request.go
+++ b/pkg/request/request.go
@@ -7,7 +7,7 @@ import (
 	"time"
 )
 
-var generalClient Client = HTTPClient{}
+var GeneralClient Client = HTTPClient{}
 
 // Response 请求的响应或错误信息
 type Response struct {