tests MAINTENANCE source code formatting
diff --git a/tests/utests/test_json.c b/tests/utests/test_json.c
index 1883980..e36a47a 100644
--- a/tests/utests/test_json.c
+++ b/tests/utests/test_json.c
@@ -15,18 +15,10 @@
 #define _DEFAULT_SOURCE
 #define _GNU_SOURCE
 
-#include <stdarg.h>
-#include <stddef.h>
-#include <setjmp.h>
-#include <cmocka.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "json.h"
 #include "context.h"
 #include "in_internal.h"
+#include "json.h"
+#include "utests.h"
 
 void *testfunc = NULL;
 
@@ -99,8 +91,6 @@
 #   define logbuf_assert(str)
 #endif
 
-
-
 static void
 test_general(void **state)
 {
@@ -565,7 +555,8 @@
     testfunc = NULL;
 }
 
-int main(void)
+int
+main(void)
 {
     const struct CMUnitTest tests[] = {
         cmocka_unit_test_setup_teardown(test_general, logger_setup, logger_teardown),