diff --git a/src/core_test/cases/all_cases.cc b/src/core_test/cases/all_cases.cc
index 734a200..001c2ae 100644
--- a/src/core_test/cases/all_cases.cc
+++ b/src/core_test/cases/all_cases.cc
@@ -23,8 +23,8 @@ static constexpr std::array<uint64_t, 16> ALL_CASES_XXH3 = {
 };
 
 /// Forcibly modify private variables to reset state.
-PRIVATE_ACCESS(AllCases, available_, bool)
-PRIVATE_ACCESS(BasicRanges, available_, bool)
+FORCIBLY_ACCESS(AllCases, available_, bool)
+FORCIBLY_ACCESS(BasicRanges, available_, bool)
 
 class BR_Test final {
 public:
@@ -36,7 +36,7 @@ public:
 
     /// Reset basic ranges build state, note it is thread-unsafe.
     static void reset() {
-        access_BasicRanges_available_(BasicRanges::instance()) = false;
+        exposer::BasicRanges_available_(BasicRanges::instance()) = false;
     }
 
     /// Verify that whether basic ranges data is correct.
@@ -55,7 +55,7 @@ public:
 
     /// Reset all cases build state, note it is thread-unsafe.
     static void reset() {
-        access_AllCases_available_(AllCases::instance()) = false;
+        exposer::AllCases_available_(AllCases::instance()) = false;
     }
 
     /// Verify that whether all cases data is correct.
diff --git a/src/core_test/codec/short_code.cc b/src/core_test/codec/short_code.cc
index b504b15..cf2ab22 100644
--- a/src/core_test/codec/short_code.cc
+++ b/src/core_test/codec/short_code.cc
@@ -21,17 +21,17 @@ using klotski::codec::SHORT_CODE_LIMIT;
 static const auto TEST_THREAD_NUM = 256;
 
 /// Forcibly modify private variables to reset state.
-PRIVATE_ACCESS(AllCases, available_, bool)
-PRIVATE_ACCESS(BasicRanges, available_, bool)
+FORCIBLY_ACCESS(AllCases, available_, bool)
+FORCIBLY_ACCESS(BasicRanges, available_, bool)
 
 /// Reset basic ranges build state, note it is thread-unsafe.
 void basic_ranges_reset() {
-    access_BasicRanges_available_(BasicRanges::instance()) = false;
+    exposer::BasicRanges_available_(BasicRanges::instance()) = false;
 }
 
 /// Reset all cases build state, note it is thread-unsafe.
 void all_cases_reset() {
-    access_AllCases_available_(AllCases::instance()) = false;
+    exposer::AllCases_available_(AllCases::instance()) = false;
 }
 
 TEST(ShortCode, limit) {
diff --git a/src/core_test/ffi/all_cases.cc b/src/core_test/ffi/all_cases.cc
index 5a4638b..bdd0a2c 100644
--- a/src/core_test/ffi/all_cases.cc
+++ b/src/core_test/ffi/all_cases.cc
@@ -18,17 +18,17 @@ using klotski::cases::ALL_CASES_NUM;
 static const std::string ALL_CASES_MD5 = "3888e9fab8d3cbb50908b12b147cfb23";
 
 /// Forcibly modify private variables to reset state.
-PRIVATE_ACCESS(AllCases, available_, bool)
-PRIVATE_ACCESS(BasicRanges, available_, bool)
+FORCIBLY_ACCESS(AllCases, available_, bool)
+FORCIBLY_ACCESS(BasicRanges, available_, bool)
 
 /// Reset basic ranges build state, note it is thread-unsafe.
 void basic_ranges_reset() {
-    access_BasicRanges_available_(BasicRanges::instance()) = false;
+    exposer::BasicRanges_available_(BasicRanges::instance()) = false;
 }
 
 /// Reset all cases build state, note it is thread-unsafe.
 void all_cases_reset() {
-    access_AllCases_available_(AllCases::instance()) = false;
+    exposer::AllCases_available_(AllCases::instance()) = false;
 }
 
 TEST(AllCases, all_cases_prebuild) {
diff --git a/src/core_test/utility/exposer.h b/src/core_test/utility/exposer.h
index e7ad736..474110f 100644
--- a/src/core_test/utility/exposer.h
+++ b/src/core_test/utility/exposer.h
@@ -26,8 +26,10 @@ typename ExposerImpl<T, Ptr>::Factory ExposerImpl<T, Ptr>::factory;
 
 } // namespace exposer
 
-#define PRIVATE_ACCESS(Class, Member, Type)                                           \
-    template struct ::exposer::ExposerImpl<decltype(&Class::Member), &Class::Member>; \
-    Type& access_##Class##_##Member(Class &T) {                                       \
-        return T.*exposer::Exposer<Type Class::*>::ptr;                               \
+#define FORCIBLY_ACCESS(Class, Member, Type)                                   \
+    namespace exposer {                                                        \
+        template struct ExposerImpl<decltype(&Class::Member), &Class::Member>; \
+        inline auto& Class##_##Member(Class &T) {                              \
+            return T.*exposer::Exposer<Type Class::*>::ptr;                    \
+        }                                                                      \
     }