diff --git a/tests/ft_strlen/00_launcher.c b/tests/ft_strlen/00_launcher.c
index 0155bdd..3b5be9b 100644
--- a/tests/ft_strlen/00_launcher.c
+++ b/tests/ft_strlen/00_launcher.c
@@ -13,16 +13,15 @@
 #include "../../util_unit.h"
 #include "../tests.h"
 
-int strlen_launcher(void) {
-  t_unit_test *testlist;
-  size_t      res;
+int	strlen_launcher(void)
+{
+	t_unit_test	*testlist;
+	size_t		res;
 
-  testlist = NULL;
-  load_test(&testlist, "null test", &test_null);
-  load_test(&testlist, "basic test", &test_basic);
-
-  res = launch_tests(testlist, "strlen");
-  clear_tests(&testlist);
-
-  return (res);
+	testlist = NULL;
+	load_test(&testlist, "null test", &test_null);
+	load_test(&testlist, "basic test", &test_basic);
+	res = launch_tests(testlist, "strlen");
+	clear_tests(&testlist);
+	return (res);
 }
diff --git a/tests/ft_strlen/01_basic_test.c b/tests/ft_strlen/01_basic_test.c
index f9ffda6..9ffa4c5 100644
--- a/tests/ft_strlen/01_basic_test.c
+++ b/tests/ft_strlen/01_basic_test.c
@@ -12,6 +12,7 @@
 
 #include "libft.h"
 
-int test_basic(void) {
-  return (ft_strlen("hello, world") == 12);
+int	test_basic(void)
+{
+	return (ft_strlen("hello, world") == 12);
 }
diff --git a/tests/ft_strlen/02_null_test.c b/tests/ft_strlen/02_null_test.c
index 753154e..6af63d4 100644
--- a/tests/ft_strlen/02_null_test.c
+++ b/tests/ft_strlen/02_null_test.c
@@ -12,6 +12,7 @@
 
 #include "libft.h"
 
-int test_null(void) {
-  return (ft_strlen(NULL) == 0);
+int	test_null(void)
+{
+	return (ft_strlen(NULL) == 0);
 }
diff --git a/tests/main.c b/tests/main.c
index dc43521..d7e9509 100644
--- a/tests/main.c
+++ b/tests/main.c
@@ -12,7 +12,7 @@
 
 #include "tests.h"
 
-int main(void)
+int	main(void)
 {
-  strlen_launcher();
+	strlen_launcher();
 }
diff --git a/tests/tests.h b/tests/tests.h
index 4c20501..15fa308 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -14,10 +14,10 @@
 # define TESTS_H
 
 // LAUNCHERS
-int strlen_launcher(void);
+int	strlen_launcher(void);
 
 // strlen
-int test_basic(void);
-int test_null(void);
+int	test_basic(void);
+int	test_null(void);
 
 #endif // !TESTS_H
diff --git a/util_unit.c b/util_unit.c
index cf81cf8..3534581 100644
--- a/util_unit.c
+++ b/util_unit.c
@@ -90,5 +90,5 @@ void	clear_tests(t_unit_test **head_ptr)
 		head->func = NULL;
 		head = next;
 	}
-  *head_ptr = NULL;
+	*head_ptr = NULL;
 }
diff --git a/util_unit2.c b/util_unit2.c
index 50963e0..fc9b9b0 100644
--- a/util_unit2.c
+++ b/util_unit2.c
@@ -1,3 +1,15 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   util_unit2.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: elagouch <elagouch@student.42lyon.fr>      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/01/24 15:46:43 by elagouch          #+#    #+#             */
+/*   Updated: 2026/01/24 15:46:44 by elagouch         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
 #include "util_unit.h"
 
 /* we loop over instead of shifting the pointer to make sure we don't skip