diff --git a/cpp/src/core/test/CMakeLists.txt b/cpp/src/core/test/CMakeLists.txt
index 5b8dca2e4b01cf32b5eee2759e92205fd95fb357..d70007229b68b04890b9d3b94b69214c3b55eb68 100644
--- a/cpp/src/core/test/CMakeLists.txt
+++ b/cpp/src/core/test/CMakeLists.txt
@@ -22,6 +22,9 @@ set(basic_libs
         gomp gfortran pthread
         )
 
+set(util_srcs
+        ${MILVUS_ENGINE_SRC}/utils/easylogging++.cc
+        )
 
 #<IVF-TEST>
 set(ivf_srcs
@@ -35,7 +38,7 @@ set(ivf_srcs
         utils.cpp
         )
 if(NOT TARGET test_ivf)
-    add_executable(test_ivf test_ivf.cpp ${ivf_srcs})
+    add_executable(test_ivf test_ivf.cpp ${ivf_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_ivf ${depend_libs} ${unittest_libs} ${basic_libs})
 
@@ -51,7 +54,7 @@ set(idmap_srcs
         utils.cpp
         )
 if(NOT TARGET test_idmap)
-    add_executable(test_idmap test_idmap.cpp ${idmap_srcs})
+    add_executable(test_idmap test_idmap.cpp ${idmap_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_idmap ${depend_libs} ${unittest_libs} ${basic_libs})
 
@@ -68,7 +71,7 @@ set(kdt_srcs
         utils.cpp
         )
 if(NOT TARGET test_kdt)
-    add_executable(test_kdt test_kdt.cpp ${kdt_srcs})
+    add_executable(test_kdt test_kdt.cpp ${kdt_srcs} ${util_srcs})
 endif()
 target_link_libraries(test_kdt
         SPTAGLibStatic
diff --git a/cpp/src/core/test/test_nsg/CMakeLists.txt b/cpp/src/core/test/test_nsg/CMakeLists.txt
index 9ee8e765255105b445815dfd8e736ddf076e7d12..17b62cd40ddd4de8ea09d345be840e4d7c447a47 100644
--- a/cpp/src/core/test/test_nsg/CMakeLists.txt
+++ b/cpp/src/core/test/test_nsg/CMakeLists.txt
@@ -34,6 +34,7 @@ if(NOT TARGET test_nsg)
             test_nsg.cpp
             ${interface_src}
             ${nsg_src}
+            ${util_srcs}
             )
 endif()
 
diff --git a/cpp/src/core/test/utils.cpp b/cpp/src/core/test/utils.cpp
index 97f4600ca74092d118967cde4f7839c855d3a599..4e240f5f74d4288843513ded37c894b82b657e9d 100644
--- a/cpp/src/core/test/utils.cpp
+++ b/cpp/src/core/test/utils.cpp
@@ -18,6 +18,15 @@
 
 #include "utils.h"
 
+INITIALIZE_EASYLOGGINGPP
+
+void InitLog() {
+    el::Configurations defaultConf;
+    defaultConf.setToDefault();
+    defaultConf.set(el::Level::Debug,
+                    el::ConfigurationType::Format, "[%thread-%datetime-%level]: %msg (%fbase:%line)");
+    el::Loggers::reconfigureLogger("default", defaultConf);
+}
 
 void DataGen::Init_with_default() {
     Generate(dim, nb, nq);
diff --git a/cpp/src/core/test/utils.h b/cpp/src/core/test/utils.h
index b9db01de51df1fb8c41ef4c1a88f7ab709befdce..df7f11d68952b500894056dfeb7a2ea29335a689 100644
--- a/cpp/src/core/test/utils.h
+++ b/cpp/src/core/test/utils.h
@@ -24,6 +24,7 @@
 #include <fstream>
 
 #include "knowhere/adapter/structure.h"
+#include "knowhere/common/Log.h"
 
 class DataGen  {
  protected:
@@ -65,6 +66,8 @@ extern void GenBase(const int64_t &dim,
                     float *xb,
                     int64_t *ids);
 
+extern void InitLog();
+
 zilliz::knowhere::DatasetPtr
 generate_dataset(int64_t nb, int64_t dim, float *xb, long *ids);