diff --git a/main.c b/main.c
index 092b0e3..8c5f1d0 100644
--- a/main.c
+++ b/main.c
@@ -3,46 +3,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "list.h"
-#include "config.h"
 
-void list_demo(void)
-{
-    struct list_t list;
-    list_init(&list);
-    for(uint32_t i = 0; i < 10; ++i)
-    {
-        list_add(&list, i);
-    }
-    list_print(&list);
-}
+
 
 int main(int argc, char *argv[])
 {
-    printf("----- Version = %s -----\n", VERSION);
 
-    if(argc != 1)
-    {
-        printf("# Program = [%s]\n", argv[0]);
-        for(uint32_t i = 1; i < argc; i++)
-        {
-            printf("# Param[%d] = %s\n", i ,argv[i]);
-        }
-    }
-
-#ifndef USE_DEMO
-    printf("list test!\n");
-    struct list_t list;
-    list_init(&list);
-    
-    list_add(&list, 1);
-    list_add(&list, 2);
-    list_add(&list, 3);
-    list_add(&list, 4);
-
-    list_print(&list);
-#else
-    printf("list demo!\n");
-    list_demo();
-#endif
+    return 0;
 }
diff --git a/test/test_list.c b/test/test_list.c
new file mode 100644
index 0000000..092b0e3
--- /dev/null
+++ b/test/test_list.c
@@ -0,0 +1,48 @@
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "list.h"
+#include "config.h"
+
+void list_demo(void)
+{
+    struct list_t list;
+    list_init(&list);
+    for(uint32_t i = 0; i < 10; ++i)
+    {
+        list_add(&list, i);
+    }
+    list_print(&list);
+}
+
+int main(int argc, char *argv[])
+{
+    printf("----- Version = %s -----\n", VERSION);
+
+    if(argc != 1)
+    {
+        printf("# Program = [%s]\n", argv[0]);
+        for(uint32_t i = 1; i < argc; i++)
+        {
+            printf("# Param[%d] = %s\n", i ,argv[i]);
+        }
+    }
+
+#ifndef USE_DEMO
+    printf("list test!\n");
+    struct list_t list;
+    list_init(&list);
+    
+    list_add(&list, 1);
+    list_add(&list, 2);
+    list_add(&list, 3);
+    list_add(&list, 4);
+
+    list_print(&list);
+#else
+    printf("list demo!\n");
+    list_demo();
+#endif
+}