diff --git a/storage/dao/dao_test.go b/storage/dao/dao_test.go
deleted file mode 100644
index 1909f2d..0000000
--- a/storage/dao/dao_test.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package dao
-
-import (
-	_ "gitee.com/wheat-os/wheatCache/conf"
-)
diff --git a/storage/dao/stringx_test.go b/storage/dao/stringx_test.go
new file mode 100644
index 0000000..5e53c21
--- /dev/null
+++ b/storage/dao/stringx_test.go
@@ -0,0 +1,82 @@
+package dao
+
+import (
+	"testing"
+
+	"gitee.com/wheat-os/wheatCache/pkg/lru"
+	"gitee.com/wheat-os/wheatCache/pkg/proto"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDao_Set_Get(t *testing.T) {
+	baseKey := proto.NewBaseKey("abbs")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	_, err := dao.Set(baseKey, "bbq")
+	require.NoError(t, err)
+	resp, err := dao.Get(baseKey)
+	require.NoError(t, err)
+	require.Equal(t, resp.Result, "bbq")
+}
+
+func TestDao_Add(t *testing.T) {
+	baseKey := proto.NewBaseKey("test")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	// 整数 add
+	dao.Set(baseKey, "1")
+	dao.Add(baseKey, 2)
+	resp, err := dao.Get(baseKey)
+	require.NoError(t, err)
+
+	require.Equal(t, resp.Result, "3")
+
+	// 浮点数
+	dao.Set(baseKey, "1.1")
+	dao.Add(baseKey, 2)
+	resp, err = dao.Get(baseKey)
+	require.NoError(t, err)
+
+	require.Equal(t, resp.Result, "3.10")
+
+	// 字符串
+	dao.Set(baseKey, "1awd.1")
+	_, err = dao.Add(baseKey, 2)
+	require.Error(t, err)
+}
+
+func TestDao_Reduce(t *testing.T) {
+	baseKey := proto.NewBaseKey("test")
+	lru := lru.NewLRUCache()
+	dao := NewDao(lru)
+
+	// 整数 add
+	dao.Set(baseKey, "1")
+	dao.Reduce(baseKey, 2)
+	resp, err := dao.Get(baseKey)
+	require.NoError(t, err)
+
+	require.Equal(t, resp.Result, "-1")
+
+	// 浮点数
+	dao.Set(baseKey, "1.1")
+	dao.Reduce(baseKey, 2)
+	resp, err = dao.Get(baseKey)
+	require.NoError(t, err)
+
+	require.Equal(t, resp.Result, "-0.90")
+
+	// 字符串
+	dao.Set(baseKey, "1awd.1")
+	_, err = dao.Reduce(baseKey, 2)
+	require.Error(t, err)
+}
+
+// func TestDao_SetBit_GetBit(t *testing.T) {
+// 	baseKey := proto.NewBaseKey("test")
+// 	lru := lru.NewLRUCache()
+// 	dao := NewDao(lru)
+
+// }