diff --git a/storage/dao/stringx_test.go b/storage/dao/stringx_test.go
index 5e53c21..e2d9b4f 100644
--- a/storage/dao/stringx_test.go
+++ b/storage/dao/stringx_test.go
@@ -1,6 +1,7 @@
 package dao
 
 import (
+	// "reflect"
 	"testing"
 
 	"gitee.com/wheat-os/wheatCache/pkg/lru"
@@ -74,9 +75,92 @@ func TestDao_Reduce(t *testing.T) {
 	require.Error(t, err)
 }
 
-// func TestDao_SetBit_GetBit(t *testing.T) {
-// 	baseKey := proto.NewBaseKey("test")
-// 	lru := lru.NewLRUCache()
-// 	dao := NewDao(lru)
+func TestDao_SetBit_GitBit(t *testing.T) {
+	baseKey := proto.NewBaseKey("s")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
 
-// }
+	_, err := dao.GetBit(baseKey, 8)
+	require.Error(t, err)
+
+	_, err = dao.SetBit(baseKey, true, 8)
+	require.NoError(t, err)
+	resp, err := dao.GetBit(baseKey, 8)
+	require.NoError(t, err)
+	require.Equal(t, resp.Val, true)
+
+	resp, err = dao.GetBit(baseKey, 7)
+	require.NoError(t, err)
+	require.Equal(t, resp.Val, false)
+
+	resp, err = dao.GetBit(baseKey, 9)
+	require.NoError(t, err)
+	require.Equal(t, resp.Val, false)
+}
+
+func TestDao_GetRange(t *testing.T) {
+	baseKey := proto.NewBaseKey("s")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	_, err := dao.GetRange(baseKey, 0, 5)
+	require.Error(t, err)
+
+	_, err = dao.Set(baseKey, "abcdef")
+	require.NoError(t, err)
+	resp, err := dao.GetRange(baseKey, 0, 3)
+	require.NoError(t, err)
+	require.Equal(t, resp.Result, "abc")
+
+	resp, err = dao.GetRange(baseKey, 0, 7)
+	require.Error(t, err)
+
+}
+
+func TestDao_GetSet(t *testing.T) {
+	baseKey := proto.NewBaseKey("s")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	_, err := dao.Set(baseKey, "a")
+	require.NoError(t, err)
+	resp, err := dao.GetSet(baseKey, "a")
+	require.NoError(t, err)
+	require.Equal(t, resp.Result, "a")
+
+	// TODO 这个测试有问题，等待修复，问题详情: https://gitee.com/wheat-os/wheat-cache/issues/I4IV41
+	resp, err = dao.GetSet(baseKey, "s")
+	require.NoError(t, err)
+	require.Equal(t, resp.Result, nil)
+}
+
+func TestDao_StrLen(t *testing.T) {
+	baseKey := proto.NewBaseKey("s")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	_, err := dao.StrLen(baseKey)
+	require.Error(t, err)
+
+	_, err = dao.Set(baseKey, "abc")
+	require.NoError(t, err)
+	resp, err := dao.StrLen(baseKey)
+	require.NoError(t, err)
+	require.Equal(t, resp.Length, int32(3))
+
+}
+
+func TestDao_Setnx(t *testing.T) {
+	baseKey := proto.NewBaseKey("s")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	_, err := dao.Setnx(baseKey, "abc")
+	require.NoError(t, err)
+	resp, err := dao.Get(baseKey)
+	require.NoError(t, err)
+	require.Equal(t, resp.Result, "abc")
+
+	_, err = dao.Setnx(baseKey, "abc")
+	require.Error(t, err)
+}