remove test_file.tmp and make test.c remove it after using it

test.c

@@ -6,7 +6,7 @@
 /*   By: tomoron <tomoron@student.42angouleme.fr>   +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/03/29 19:53:58 by tomoron           #+#    #+#             */
-/*   Updated: 2025/03/29 19:54:24 by tomoron          ###   ########.fr       */
+/*   Updated: 2025/03/30 15:55:13 by tomoron          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -145,6 +145,7 @@ int test_read(void)
 	TEST("read to null pointer, return", ft_read(fd, NULL, 4) == (size_t)-1)
 	TEST("read to null pointer, errno", errno == 14)
 	close(fd);
+	unlink("test_file.tmp");
 
 	return(nb_tests == passed);
 }