diff --git a/tests/http_test.cc b/tests/http_test.cc
index 2c757beb..d8170fd0 100644
--- a/tests/http_test.cc
+++ b/tests/http_test.cc
@@ -58,7 +58,7 @@ TEST(HTTPTest, http_get_param)
     nng_url_parse(&url, "http://127.0.0.1");
     nng_http_req_alloc(&req, url);
 
-    for (int i = 0; i < sizeof(data) / sizeof(query_param_data_t); ++i) {
+    for (uint64_t i = 0; i < sizeof(data) / sizeof(query_param_data_t); ++i) {
         nng_http_req_set_uri(req, (char *) data[i].uri);
         nng_aio_set_input(aio, 0, req);
         len             = 0;
@@ -135,7 +135,7 @@ TEST(HTTPTest, http_get_param_node_id)
     nng_url_parse(&url, "http://127.0.0.1");
     nng_http_req_alloc(&req, url);
 
-    for (int i = 0; i < sizeof(data) / sizeof(query_node_id_data_t); ++i) {
+    for (uint64_t i = 0; i < sizeof(data) / sizeof(query_node_id_data_t); ++i) {
         neu_node_id_t prev_node_id = node_id;
         nng_http_req_set_uri(req, (char *) data[i].uri);
         nng_aio_set_input(aio, 0, req);
diff --git a/tests/jwt_test.cc b/tests/jwt_test.cc
index d451e84f..da4e1c13 100644
--- a/tests/jwt_test.cc
+++ b/tests/jwt_test.cc
@@ -10,9 +10,7 @@
 zlog_category_t *neuron = NULL;
 TEST(JwtTest, SetJwt)
 {
-    char *        token            = NULL;
-    unsigned char public_key[4096] = { 0 };
-    size_t        pub_key_len      = 0;
+    char *token = NULL;
 
     EXPECT_EQ(0, neu_jwt_init((char *) "./config"));
 
@@ -24,11 +22,8 @@ TEST(JwtTest, SetJwt)
 
 TEST(JwtTest, JwtValidate)
 {
-    char *         token            = NULL;
-    char           b_token[1024]    = { 0 };
-    unsigned char  public_key[4096] = { 0 };
-    size_t         pub_key_len      = 0;
-    struct timeval expire_tv        = { 0 };
+    char *token         = NULL;
+    char  b_token[1024] = { 0 };
 
     EXPECT_EQ(0, neu_jwt_init((char *) "./config"));
     EXPECT_EQ(0, neu_jwt_new(&token));