diff --git a/unit_test/hardware/hardware_test.cpp b/unit_test/hardware/hardware_test.cpp
new file mode 100644
index 0000000..612c2fc
--- /dev/null
+++ b/unit_test/hardware/hardware_test.cpp
@@ -0,0 +1,20 @@
+//
+// Created by dongwenzhe on 2023/3/16.
+//
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "hardware.h"
+#include "doctest.h"
+
+TEST_SUITE("Hardware functions") {
+    TEST_CASE("CPU") {
+        PCPU_INFO cpuInfo;
+        memset(cpuInfo, 0, sizeof(CPU_INFO));
+
+        cpu_watch_init();
+
+        get_cpu_info(cpuInfo);
+        CHECK_NE(cpuInfo->nCores,  0);
+        CHECK_NE(cpuInfo->cpuUsed, 0);
+        CHECK_NE(cpuInfo->cpuCoreDesc.cpuName, nullptr);
+    }
+}
diff --git a/unit_test/uthash/utarray_test.cpp b/unit_test/uthash/utarray_test.cpp
new file mode 100644
index 0000000..89e358a
--- /dev/null
+++ b/unit_test/uthash/utarray_test.cpp
@@ -0,0 +1,49 @@
+//
+// Created by dongwenzhe on 2023/3/21.
+//
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "uthash/utarray.h"
+#include "doctest.h"
+
+typedef struct {
+    int   a;
+    char *b;
+} COMBO,*PCOMBO;
+
+UT_icd ut_combo_icd = {sizeof(COMBO), nullptr, nullptr, nullptr};
+
+TEST_SUITE("UTArray") {
+    UT_array *nums;
+    COMBO     t_combo;
+
+    TEST_CASE("PUSH") {
+        PCOMBO p_combo;
+
+        utarray_new(nums, &ut_combo_icd);
+
+        t_combo.a = 1;
+        t_combo.b = "hello ";
+        utarray_push_back(nums, &t_combo);
+        t_combo.a = 2;
+        t_combo.b = "world";
+        utarray_push_back(nums, &t_combo);
+
+        while((PCOMBO)utarray_next(nums, p_combo) != nullptr) {
+            p_combo = (PCOMBO)utarray_next(nums, p_combo);
+            MESSAGE("COMBO:", p_combo->a);
+            MESSAGE(doctest::String(p_combo->b));
+        }
+    }
+
+    TEST_CASE("POP") {
+        PCOMBO p_combo;
+        MESSAGE("original len: ", utarray_len(nums));
+        while(utarray_len(nums) != 0) {
+            p_combo = (PCOMBO)utarray_next(nums, p_combo);
+            utarray_pop_back(nums);
+            MESSAGE("len: ", utarray_len(nums));
+        }
+
+        utarray_free(nums);
+    }
+}
\ No newline at end of file
diff --git a/unit_test/uthash/utstring_test.cpp b/unit_test/uthash/utstring_test.cpp
new file mode 100644
index 0000000..3a789ee
--- /dev/null
+++ b/unit_test/uthash/utstring_test.cpp
@@ -0,0 +1,46 @@
+//
+// Created by dongwenzhe on 2023/3/21.
+//
+
+//#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "uthash/utstring.h"
+#include "doctest.h"
+
+TEST_SUITE("UTString") {
+
+    TEST_CASE("Append") {
+        UT_string *s;
+        UT_string *t;
+
+        utstring_new(s);
+        utstring_new(t);
+        utstring_printf(s, "hello ");
+        utstring_printf(t, "world");
+
+        utstring_concat(s, t);
+        char *body = utstring_body(s);
+
+        MESSAGE(doctest::String(body));
+        CHECK(doctest::String(body) == "hello world");
+
+        utstring_free(s);
+        utstring_free(t);
+    }
+
+    TEST_CASE("Binary") {
+        UT_string *s;
+        utstring_new(s);
+        utstring_printf(s, "hello world");
+        MESSAGE(utstring_len(s));
+
+        char binary[] = "\xff\xff";
+        utstring_bincpy(s, binary, sizeof(binary));
+        MESSAGE(utstring_len(s));
+        char *body = utstring_body(s);
+        MESSAGE(doctest::String(body));
+
+        utstring_clear(s);
+
+        utstring_free(s);
+    }
+}
\ No newline at end of file