fix unittest failure

core/src/server/Config.cpp

@@ -307,6 +307,7 @@ Config::ResetDefaultConfig() {
         return s;
     }
 
+#ifdef MILVUS_GPU_VERSION
     s = SetCacheConfigGpuCacheCapacity(CONFIG_CACHE_GPU_CACHE_CAPACITY_DEFAULT);
     if (!s.ok()) {
         return s;
@@ -316,6 +317,7 @@ Config::ResetDefaultConfig() {
     if (!s.ok()) {
         return s;
     }
+#endif
 
     s = SetCacheConfigCacheInsertData(CONFIG_CACHE_CACHE_INSERT_DATA_DEFAULT);
     if (!s.ok()) {

core/unittest/server/test_config.cpp

@@ -216,6 +216,7 @@ TEST_F(ConfigTest, SERVER_CONFIG_VALID_TEST) {
     s = config.GetCacheConfigCpuCacheThreshold(float_val);
     ASSERT_TRUE(float_val == cache_cpu_cache_threshold);
 
+#ifdef MILVUS_GPU_VERSION
     int64_t cache_gpu_cache_capacity = 1;
     s = config.SetCacheConfigGpuCacheCapacity(std::to_string(cache_gpu_cache_capacity));
     ASSERT_TRUE(s.ok());
@@ -228,6 +229,7 @@ TEST_F(ConfigTest, SERVER_CONFIG_VALID_TEST) {
     ASSERT_TRUE(s.ok());
     s = config.GetCacheConfigGpuCacheThreshold(float_val);
     ASSERT_TRUE(float_val == cache_gpu_cache_threshold);
+#endif
 
     bool cache_insert_data = true;
     s = config.SetCacheConfigCacheInsertData(std::to_string(cache_insert_data));