diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index ff59666..5903c99 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -2,8 +2,7 @@ set(CMAKE_CXX_STANDARD 98)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_executable(ulib_test
-        src/ulib/sigslot/sigslot_test.cpp)
-
+        src/ulib/base/types_test.cpp)
 target_link_libraries(ulib_test PRIVATE
         ulib
         gtest
diff --git a/tests/src/ulib/base/types_test.cpp b/tests/src/ulib/base/types_test.cpp
new file mode 100644
index 0000000..4189275
--- /dev/null
+++ b/tests/src/ulib/base/types_test.cpp
@@ -0,0 +1,27 @@
+//
+// Created by tqcq on 2023/12/5.
+//
+
+#include <ulib/base/types.h>
+#include <gtest/gtest.h>
+
+TEST(ULIB_BASE_TYPES, SIZE_OF)
+{
+    EXPECT_EQ(sizeof(ulib::int8_t), sizeof(char));
+    EXPECT_EQ(sizeof(ulib::int16_t), sizeof(short));
+    EXPECT_EQ(sizeof(ulib::int32_t), sizeof(int));
+    EXPECT_EQ(sizeof(ulib::int64_t), sizeof(long long));
+    EXPECT_EQ(sizeof(ulib::uint8_t), sizeof(unsigned char));
+    EXPECT_EQ(sizeof(ulib::uint16_t), sizeof(unsigned short));
+    EXPECT_EQ(sizeof(ulib::uint32_t), sizeof(unsigned int));
+    EXPECT_EQ(sizeof(ulib::uint64_t), sizeof(unsigned long long));
+
+    EXPECT_EQ(sizeof(ulib::int8_t), 1);
+    EXPECT_EQ(sizeof(ulib::int16_t), 2);
+    EXPECT_EQ(sizeof(ulib::int32_t), 4);
+    EXPECT_EQ(sizeof(ulib::int64_t), 8);
+    EXPECT_EQ(sizeof(ulib::uint8_t), 1);
+    EXPECT_EQ(sizeof(ulib::uint16_t), 2);
+    EXPECT_EQ(sizeof(ulib::uint32_t), 4);
+    EXPECT_EQ(sizeof(ulib::uint64_t), 8);
+}
\ No newline at end of file