重构代码的架构设计，增加测试单元，提高代码可靠性

tests/tests_smoke.c

@@ -0,0 +1,10 @@
+#include "test_common.h"
+
+int main(void)
+{
+    ASSERT_TRUE(1);
+    ASSERT_EQ_INT(4, 2 + 2);
+    ASSERT_EQ_U32(0x12345678, 0x12345678);
+    ASSERT_STREQ("Hello, World!", "Hello, World!");
+    return 0;
+}