feat: implement main.c test file

tests/main.c

@@ -0,0 +1,34 @@
+/**
+ * @file main.c
+ * @author your name ([email protected])
+ * @brief 
+ * @version 0.1
+ * @date 2024-04-28
+ * 
+ * @copyright Copyright (c) 2024
+ * 
+ */
+
+#include <stdio.h>
+#include "unity.h"
+
+void test_ciot_decoder();
+void test_ciot_decoder_slip();
+void test_ciot_decoder_s();
+
+void setUp(void) {
+    // set stuff up here
+}
+
+void tearDown(void) {
+    // clean stuff up here
+}
+
+int app_main(void)
+{
+    UNITY_BEGIN();
+    test_ciot_decoder();
+    test_ciot_decoder_slip();
+    test_ciot_decoder_s();
+    return UNITY_END();
+}