42-libft-test/srcs/putnbr_fd.cpp at master · Kjur0/42-libft-test · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   putnbr_fd.cpp                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kjurkows <kjurkows@student.42warsaw.pl>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2026/06/18 21:32:51 by kjurkows          #+#    #+#             */
/*   Updated: 2026/07/03 13:54:54 by kjurkows         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "_main.hpp"
#include <fcntl.h>
#include <unistd.h>

TEST(putnbr_fd, 42)
{
	int		n = 42;
	int		fd = open("/tmp/tests/putnbr_fd_42.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[10] = {0};
	fd = open("/tmp/tests/putnbr_fd_42.txt", O_RDONLY);
	read(fd, out, 9);
	close(fd);
	ASSERT_STREQ(out, "42");
}

TEST(putnbr_fd, 0)
{
	int		n = 0;
	int		fd = open("/tmp/tests/putnbr_fd_0.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[10] = {0};
	fd = open("/tmp/tests/putnbr_fd_0.txt", O_RDONLY);
	read(fd, out, 9);
	close(fd);
	ASSERT_STREQ(out, "0");
}

TEST(putnbr_fd, neg1)
{
	int		n = -1;
	int		fd = open("/tmp/tests/putnbr_fd_neg.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[10] = {0};
	fd = open("/tmp/tests/putnbr_fd_neg.txt", O_RDONLY);
	read(fd, out, 9);
	close(fd);
	ASSERT_STREQ(out, "-1");
}

TEST(putnbr_fd, neg42)
{
	int		n = -42;
	int		fd = open("/tmp/tests/putnbr_fd_neg42.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[10] = {0};
	fd = open("/tmp/tests/putnbr_fd_neg42.txt", O_RDONLY);
	read(fd, out, 9);
	close(fd);
	ASSERT_STREQ(out, "-42");
}

TEST(putnbr_fd, int_min)
{
	int		n = -2147483648;
	int		fd = open("/tmp/tests/putnbr_fd_int_min.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[20] = {0};
	fd = open("/tmp/tests/putnbr_fd_int_min.txt", O_RDONLY);
	read(fd, out, 19);
	close(fd);
	ASSERT_STREQ(out, "-2147483648");
}

TEST(putnbr_fd, int_max)
{
	int		n = 2147483647;
	int		fd = open("/tmp/tests/putnbr_fd_int_max.txt", O_WRONLY | O_CREAT | O_TRUNC, 0644);

	ft_putnbr_fd(n, fd);

	close(fd);
	char	out[20] = {0};
	fd = open("/tmp/tests/putnbr_fd_int_max.txt", O_RDONLY);
	read(fd, out, 19);
	close(fd);
	ASSERT_STREQ(out, "2147483647");
}