unit-test-master.c
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/*
* Copyright (C) 2001-2008 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <modbus/modbus.h>
#include "unit-test.h"
/* Tests based on PI-MBUS-300 documentation */
#define SLAVE 0x11
int main(void)
{
uint8_t *tab_rp_status;
uint16_t *tab_rp_registers;
modbus_param_t mb_param;
int i;
uint8_t value;
uint16_t address;
uint16_t nb_points;
int ret;
/* RTU parity : none, even, odd */
/* modbus_init_rtu(&mb_param, "/dev/ttyS0", 19200, "none", 8, 1); */
/* TCP */
modbus_init_tcp(&mb_param, "127.0.0.1", 1502);
/* modbus_set_debug(&mb_param, TRUE);*/
modbus_connect(&mb_param);
/* Allocate and initialize the memory to store the status */
nb_points = (UT_COIL_STATUS_NB_POINTS > UT_INPUT_STATUS_NB_POINTS) ?
UT_COIL_STATUS_NB_POINTS : UT_INPUT_STATUS_NB_POINTS;
tab_rp_status = (uint8_t *) malloc(nb_points * sizeof(uint8_t));
memset(tab_rp_status, 0, nb_points * sizeof(uint8_t));
/* Allocate and initialize the memory to store the registers */
nb_points = (UT_HOLDING_REGISTERS_NB_POINTS > UT_INPUT_REGISTERS_NB_POINTS) ?
UT_HOLDING_REGISTERS_NB_POINTS : UT_INPUT_REGISTERS_NB_POINTS;
tab_rp_registers = (uint16_t *) malloc(nb_points * sizeof(uint16_t));
memset(tab_rp_registers, 0, nb_points * sizeof(uint16_t));
printf("UNIT TESTING\n");
printf("Test read functions:\n");
/** COIL STATUS **/
ret = read_coil_status(&mb_param, SLAVE, UT_COIL_STATUS_ADDRESS,
UT_COIL_STATUS_NB_POINTS, tab_rp_status);
printf("* coil status: ");
if (ret != UT_COIL_STATUS_NB_POINTS) {
printf("FAILED (nb points %d)\n", ret);
goto close;
}
i = 0;
address = UT_COIL_STATUS_ADDRESS;
nb_points = UT_COIL_STATUS_NB_POINTS;
while (nb_points > 0) {
int nb_bits = (nb_points > 8) ? 8 : nb_points;
value = get_byte_from_bits(tab_rp_status, i*8, nb_bits);
if (value != UT_COIL_STATUS_TAB[i]) {
printf("FAILED (%0X != %0X)\n",
value, UT_COIL_STATUS_TAB[i]);
goto close;
}
nb_points -= nb_bits;
i++;
}
printf("OK\n");
/** INPUT STATUS **/
ret = read_input_status(&mb_param, SLAVE, UT_INPUT_STATUS_ADDRESS,
UT_INPUT_STATUS_NB_POINTS, tab_rp_status);
printf("* input status :");
if (ret != UT_INPUT_STATUS_NB_POINTS) {
printf("FAILED (nb points %d)\n", ret);
goto close;
}
i = 0;
address = UT_INPUT_STATUS_ADDRESS;
nb_points = UT_INPUT_STATUS_NB_POINTS;
while (nb_points > 0) {
int nb_bits = (nb_points > 8) ? 8 : nb_points;
value = get_byte_from_bits(tab_rp_status, i*8, nb_bits);
if (value != UT_INPUT_STATUS_TAB[i]) {
printf("FAILED (%0X != %0X)\n",
value, UT_INPUT_STATUS_TAB[i]);
goto close;
}
nb_points -= nb_bits;
i++;
}
printf("OK\n");
/** HOLDING REGISTERS **/
ret = read_holding_registers(&mb_param, SLAVE, UT_HOLDING_REGISTERS_ADDRESS,
UT_HOLDING_REGISTERS_NB_POINTS, tab_rp_registers);
printf("* holding registers: ");
if (ret != UT_HOLDING_REGISTERS_NB_POINTS) {
printf("FAILED (nb points %d)\n", ret);
goto close;
}
for (i=0; i < UT_HOLDING_REGISTERS_NB_POINTS; i++) {
if (tab_rp_registers[i] != UT_HOLDING_REGISTERS_TAB[i]) {
printf("FAILED (%0X != %0X)\n",
tab_rp_registers[i], UT_HOLDING_REGISTERS_TAB[i]);
goto close;
}
}
printf("OK\n");
/** INPUT REGISTERS **/
ret = read_input_registers(&mb_param, SLAVE, UT_INPUT_REGISTERS_ADDRESS,
UT_INPUT_REGISTERS_NB_POINTS, tab_rp_registers);
printf("* input registers: ");
if (ret != UT_INPUT_REGISTERS_NB_POINTS) {
printf("FAILED (nb points %d)\n", ret);
goto close;
}
for (i=0; i < UT_INPUT_REGISTERS_NB_POINTS; i++) {
if (tab_rp_registers[i] != UT_INPUT_REGISTERS_TAB[i]) {
printf("FAILED (%0X != %0X)\n",
tab_rp_registers[i], UT_INPUT_REGISTERS_TAB[i]);
goto close;
}
}
printf("OK\n");
/** WRITE FUNCTIONS **/
printf("\nTest write functions:\n");
ret = force_single_coil(&mb_param, SLAVE, UT_COIL_STATUS_ADDRESS, ON);
printf("* force single coil: ");
if (ret == 1) {
printf("OK\n");
} else {
printf("FAILED\n");
goto close;
}
ret = preset_single_register(&mb_param, SLAVE, 0x01, 0x03);
printf("* preset_single_register: ");
if (ret == 1) {
printf("OK\n");
} else {
printf("FAILED\n");
goto close;
}
{
int nb_points = 0x0A;
uint8_t tab_value[] = { ON, OFF, ON, ON, OFF, OFF, ON, ON, ON, OFF };
ret = force_multiple_coils(&mb_param, SLAVE, 0x13, nb_points, tab_value);
printf("* force_multiple_coils: ");
if (ret == nb_points) {
printf("OK\n");
} else {
printf("FAILED\n");
goto close;
}
}
{
int nb_points = 2;
uint16_t tab_value[] = { 0x000A, 0x0102 };
ret = preset_multiple_registers(&mb_param, SLAVE, 0x01, nb_points, tab_value);
printf("* preset_multiple_registers: ");
if (ret == nb_points) {
printf("OK\n");
} else {
printf("FAILED\n");
goto close;
}
}
/** ILLEGAL DATA ADDRESS */
printf("\nTest illegal data address:");
/* The mapping begins at 0 and end at adresse + nb_points so
* the adresses above are not valid. */
ret = read_coil_status(&mb_param, SLAVE, UT_COIL_STATUS_ADDRESS,
UT_COIL_STATUS_NB_POINTS + 1, tab_rp_status);
printf("* coil status: ");
if (ret == ILLEGAL_DATA_ADDRESS)
printf("OK");
else
printf("FAILED");
ret = read_input_status(&mb_param, SLAVE, UT_INPUT_STATUS_ADDRESS,
UT_INPUT_STATUS_NB_POINTS + 1, tab_rp_status);
printf("* input status: ");
if (ret == ILLEGAL_DATA_ADDRESS)
printf("OK");
else
printf("FAILED");
ret = read_holding_registers(&mb_param, SLAVE, UT_HOLDING_REGISTERS_ADDRESS,
UT_HOLDING_REGISTERS_NB_POINTS + 1, tab_rp_registers);
printf("* holding registers: ");
if (ret == ILLEGAL_DATA_ADDRESS)
printf("OK");
else
printf("FAILED");
ret = read_input_registers(&mb_param, SLAVE, UT_INPUT_REGISTERS_ADDRESS,
UT_INPUT_REGISTERS_NB_POINTS + 1, tab_rp_registers);
printf("* input registers: ");
if (ret == ILLEGAL_DATA_ADDRESS)
printf("OK");
else
printf("FAILED");
ret = force_single_coil(&mb_param, SLAVE,
UT_COIL_STATUS_ADDRESS + UT_COIL_STATUS_NB_POINTS, ON);
printf("* force single coil: ");
if (ret == ILLEGAL_DATA_ADDRESS) {
printf("OK");
} else {
printf("FAILED");
}
ret = force_multiple_coils(&mb_param, SLAVE, UT_COIL_STATUS_ADDRESS,
UT_COIL_STATUS_NB_POINTS + 1, tab_rp_status);
printf("* force multipls coils: ");
if (ret == ILLEGAL_DATA_ADDRESS) {
printf("OK");
} else {
printf("FAILED");
}
ret = preset_multiple_registers(&mb_param, SLAVE, UT_HOLDING_REGISTERS_ADDRESS,
UT_HOLDING_REGISTERS_NB_POINTS + 1, tab_rp_registers);
printf("* preset multiple registers: ");
if (ret == ILLEGAL_DATA_ADDRESS) {
printf("OK");
} else {
printf("FAILED");
}
printf("\n");
close:
/* Free the memory */
free(tab_rp_status);
free(tab_rp_registers);
/* Close the connection */
modbus_close(&mb_param);
return 0;
}