ft_strjoin()

Makefile

@@ -6,7 +6,7 @@
 #    By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2025/10/03 18:03:12 by lalgarra          #+#    #+#              #
-#    Updated: 2025/10/08 19:27:12 by lalgarra         ###   ########.fr        #
+#    Updated: 2025/10/08 20:35:23 by lalgarra         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -22,7 +22,7 @@ TESTS := ft_isalpha_test ft_isdigit_test ft_isalnum_test ft_isascii_test \
 	ft_memset_test ft_bzero_test ft_memcpy_test ft_calloc_test \
 	ft_memmove_test ft_strlcpy_test ft_strlcat_test ft_strchr_test \
 	ft_strrchr_test ft_strncmp_test ft_memcmp_test ft_strnstr_test \
-	ft_atoi_test ft_substr_test
+	ft_atoi_test ft_substr_test ft_strjoin_test
 
 %_test : %_test.c
 	$(CC) $(CFLAGS) $*_test.c -L$(LIBDIR) -lft -o $*_test

ft_strjoin_expected.output

@@ -0,0 +1,4 @@
+test 1: str1:[Lorem], str2:[ ipsum], result:[Lorem ipsum]
+test 2: str1:[], str2:[ ipsum], result:[ ipsum]
+test 3: str1:[Lorem], str2:[], result:[Lorem]
+test 4: str1:[Lorem], str2:[-NULL-], result:[Lorem]

ft_strjoin_test.c

@@ -0,0 +1,72 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strjoin_test.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lalgarra <lalgarra@student.42madrid.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/10/08 20:21:32 by lalgarra          #+#    #+#             */
+/*   Updated: 2025/10/08 20:41:28 by lalgarra         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+
+
+#include "libft.h"
+#include <stdio.h>
+#include <string.h>
+
+static void ft_putstr_fd1(char *res, int fd)
+{
+	if (res == NULL)
+		ft_putstr_fd("-NULL-", fd);
+	else
+		ft_putstr_fd(res, fd);
+}
+
+static void	test(char *prefix, char *str1, char *str2)
+{
+	char	*res;
+	int		fd;
+
+	fd = STDOUT_FILENO;
+	ft_putstr_fd(prefix, fd);
+	ft_putstr_fd("str1:[", fd);
+	ft_putstr_fd1(str1, fd);
+	ft_putstr_fd("], str2:[", fd);
+	ft_putstr_fd1(str2, fd);
+	res = ft_strjoin(str1, str2);
+	ft_putstr_fd("], result:[", fd);
+	ft_putstr_fd1(res, fd);
+	free(res);
+	ft_putendl_fd("]", fd);
+}
+
+static void	do_test1(void)
+{
+	test("test 1: ", "Lorem", " ipsum");
+}
+
+static void	do_test2(void)
+{
+	test("test 2: ", "", " ipsum");
+}
+
+static void	do_test3(void)
+{
+	test("test 3: ", "Lorem", "");
+}
+
+static void	do_test4(void)
+{
+	test("test 4: ", "Lorem", (char *)0);
+}
+
+int	main(void)
+{
+	do_test1();
+	do_test2();
+	do_test3();
+	do_test4();
+	return (0);
+}