errno checking example

Author: cacharle

libasm_test.h

@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/08 03:07:19 by cacharle          #+#    #+#             */
-/*   Updated: 2020/04/13 14:41:40 by charles          ###   ########.fr       */
+/*   Updated: 2020/05/01 10:06:45 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -22,6 +22,7 @@
 # include <sys/wait.h>
 # include <limits.h>
 # include <stddef.h>
+# include <errno.h>
 
 # define TO_STRING(x) #x
 

test/ft_read_test.c

@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/08 03:07:44 by cacharle          #+#    #+#             */
-/*   Updated: 2020/04/13 14:52:41 by charles          ###   ########.fr       */
+/*   Updated: 2020/05/01 10:10:10 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -70,7 +70,7 @@ void ft_read_test_compare(void)
 	FT_READ_EXPECT("");
 	FT_READ_EXPECT("bon");
 	FT_READ_EXPECT("bonjour");
-	FT_READ_EXPECT("%c%s%p%x%X%e%f%g");
+	FT_READ_EXPECT("#c#s#p#x#X#e#f#g");
 	FT_READ_EXPECT("the\0hidden");
 	FT_READ_EXPECT("Lorem ipsum dolor sit amet, consectetur adipiscing\
 elit. Sed in malesuada purus. Etiam a scelerisque massa. Ut non euismod elit. Aliquam\

test/ft_write_test.c

@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/08 03:07:48 by cacharle          #+#    #+#             */
-/*   Updated: 2020/04/13 14:51:39 by charles          ###   ########.fr       */
+/*   Updated: 2020/05/01 10:09:41 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,16 +17,28 @@
 static int ft_write_pipe[2];
 static char buf[FT_WRITE_BUF_SIZE] = {0};
 static unsigned long write_ret;
+static unsigned long write_origin_ret;
+static unsigned long write_errno;
+static unsigned long write_origin_errno;
 static int ret;
 
 #define FT_WRITE_EXPECT(str) do {                                           \
 	if (pipe(ft_write_pipe) < 0)                                            \
 		exit(EXIT_FAILURE);                                                 \
 	fcntl(ft_write_pipe[0], F_SETFL, O_NONBLOCK);                           \
+	write_origin_errno = 0;                                                 \
+	write_origin_ret = write(ft_write_pipe[1], str, strlen(str));           \
+	write_origin_errno = errno;                                             \
+	ret = read(ft_write_pipe[0], buf, FT_WRITE_BUF_SIZE);                   \
+	write_errno = 0;                                                        \
 	write_ret = ft_write(ft_write_pipe[1], str, strlen(str));               \
+	write_errno = errno;                                                    \
 	ret = read(ft_write_pipe[0], buf, FT_WRITE_BUF_SIZE);                   \
 	buf[ret] = '\0';                                                        \
-	if (strcmp(buf, str) != 0 || write_ret != strlen(str))                  \
+	if (write_errno != write_origin_errno)                                  \
+		printf("KO: [COMPARE]: %s: expected: errno %ld got: errno %ld with: "#str"\n", \
+				test_name, write_origin_errno, write_errno);                           \
+	else if (strcmp(buf, str) != 0 || write_ret != strlen(str))             \
 		printf("KO: [COMPARE]: %s: expected: %lu \"%s\" got: %lu \"%s\" with: %d, \"%s\", %zu \n", \
 				test_name, strlen(str), str, write_ret, buf, ft_write_pipe[0], buf, strlen(str));  \
 	else                                                                    \
@@ -36,10 +48,18 @@ static int ret;
 } while (0);
 
 #define FT_WRITE_EXPECT_ERROR(fd, str, size) do {             \
+	write_errno = 0;                                          \
 	write_ret = ft_write(fd, str, size);                      \
+	write_errno = errno;                                      \
+	write_origin_errno = 0;                                   \
+	write_origin_ret = write(fd, str, size);                  \
+	write_origin_errno = errno;                               \
 	if ((long)write_ret != -1)                                \
 		printf("KO: [COMPARE]: %s: expected: %ld got: %ld with: %d "#str", %d\n", \
 				test_name, -1l, (long)write_ret, fd, size);                       \
+	else if (write_errno != write_origin_errno)               \
+		printf("KO: [COMPARE]: %s: expected: errno %ld got: errno %ld with: %d "#str", %d\n", \
+				test_name, write_origin_errno, write_errno, fd, size);                        \
 	else                                                      \
 		print_ok();                                           \
 } while (0);
@@ -71,7 +91,7 @@ void ft_write_test_compare(void)
 	FT_WRITE_EXPECT("");
 	FT_WRITE_EXPECT("bon");
 	FT_WRITE_EXPECT("bonjour");
-	FT_WRITE_EXPECT("%c%s%p%x%X%e%f%g");
+	FT_WRITE_EXPECT("#c#s#p#x#X#e#f#g");
 	FT_WRITE_EXPECT("the\0hidden");
 	FT_WRITE_EXPECT("Lorem ipsum dolor sit amet, consectetur adipiscing\
 elit. Sed in malesuada purus. Etiam a scelerisque massa. Ut non euismod elit. Aliquam\