diff options
Diffstat (limited to '')
| -rwxr-xr-x | tests/unit-test-client | 225 | ||||
| -rw-r--r-- | tests/unit-test-client.c | 690 | ||||
| -rw-r--r-- | tests/unit-test-client.o | bin | 0 -> 43688 bytes |
3 files changed, 915 insertions, 0 deletions
diff --git a/tests/unit-test-client b/tests/unit-test-client new file mode 100755 index 0000000..4e2b561 --- /dev/null +++ b/tests/unit-test-client @@ -0,0 +1,225 @@ +#! /bin/bash + +# unit-test-client - temporary wrapper script for .libs/unit-test-client +# Generated by libtool (GNU libtool) 2.4 Debian-2.4-3 +# +# The unit-test-client program cannot be directly executed until all the libtool +# libraries that it depends on are installed. +# +# This wrapper script should never be moved out of the build directory. +# If it is, it will not operate correctly. + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='s/\([`"$\\]\)/\\\1/g' + +# Be Bourne compatible +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +relink_command="(cd /home/jmccrohan/bin/libmodbus/tests; { test -z \"\${LIBRARY_PATH+set}\" || unset LIBRARY_PATH || { LIBRARY_PATH=; export LIBRARY_PATH; }; }; { test -z \"\${COMPILER_PATH+set}\" || unset COMPILER_PATH || { COMPILER_PATH=; export COMPILER_PATH; }; }; { test -z \"\${GCC_EXEC_PREFIX+set}\" || unset GCC_EXEC_PREFIX || { GCC_EXEC_PREFIX=; export GCC_EXEC_PREFIX; }; }; { test -z \"\${LD_RUN_PATH+set}\" || unset LD_RUN_PATH || { LD_RUN_PATH=; export LD_RUN_PATH; }; }; { test -z \"\${LD_LIBRARY_PATH+set}\" || unset LD_LIBRARY_PATH || { LD_LIBRARY_PATH=; export LD_LIBRARY_PATH; }; }; PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11; export PATH; gcc -g -O2 -g -O2 -Wall -Werror -o \$progdir/\$file unit-test-client.o ../src/.libs/libmodbus.so -Wl,-rpath -Wl,/home/jmccrohan/bin/libmodbus/src/.libs)" + +# This environment variable determines our operation mode. +if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then + # install mode needs the following variables: + generated_by_libtool_version='2.4' + notinst_deplibs=' ../src/libmodbus.la' +else + # When we are sourced in execute mode, $file and $ECHO are already set. + if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then + file="$0" + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' +} + ECHO="printf %s\\n" + fi + +# Very basic option parsing. These options are (a) specific to +# the libtool wrapper, (b) are identical between the wrapper +# /script/ and the wrapper /executable/ which is used only on +# windows platforms, and (c) all begin with the string --lt- +# (application programs are unlikely to have options which match +# this pattern). +# +# There are only two supported options: --lt-debug and +# --lt-dump-script. There is, deliberately, no --lt-help. +# +# The first argument to this parsing function should be the +# script's ../libtool value, followed by no. +lt_option_debug= +func_parse_lt_options () +{ + lt_script_arg0=$0 + shift + for lt_opt + do + case "$lt_opt" in + --lt-debug) lt_option_debug=1 ;; + --lt-dump-script) + lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'` + test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=. + lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'` + cat "$lt_dump_D/$lt_dump_F" + exit 0 + ;; + --lt-*) + $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2 + exit 1 + ;; + esac + done + + # Print the debug banner immediately: + if test -n "$lt_option_debug"; then + echo "unit-test-client:unit-test-client:${LINENO}: libtool wrapper (GNU libtool) 2.4 Debian-2.4-3" 1>&2 + fi +} + +# Used when --lt-debug. Prints its arguments to stdout +# (redirection is the responsibility of the caller) +func_lt_dump_args () +{ + lt_dump_args_N=1; + for lt_arg + do + $ECHO "unit-test-client:unit-test-client:${LINENO}: newargv[$lt_dump_args_N]: $lt_arg" + lt_dump_args_N=`expr $lt_dump_args_N + 1` + done +} + +# Core function for launching the target application +func_exec_program_core () +{ + + if test -n "$lt_option_debug"; then + $ECHO "unit-test-client:unit-test-client:${LINENO}: newargv[0]: $progdir/$program" 1>&2 + func_lt_dump_args ${1+"$@"} 1>&2 + fi + exec "$progdir/$program" ${1+"$@"} + + $ECHO "$0: cannot exec $program $*" 1>&2 + exit 1 +} + +# A function to encapsulate launching the target application +# Strips options in the --lt-* namespace from $@ and +# launches target application with the remaining arguments. +func_exec_program () +{ + for lt_wr_arg + do + case $lt_wr_arg in + --lt-*) ;; + *) set x "$@" "$lt_wr_arg"; shift;; + esac + shift + done + func_exec_program_core ${1+"$@"} +} + + # Parse options + func_parse_lt_options "$0" ${1+"$@"} + + # Find the directory that this script lives in. + thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'` + test "x$thisdir" = "x$file" && thisdir=. + + # Follow symbolic links until we get to the real thisdir. + file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'` + while test -n "$file"; do + destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'` + + # If there was a directory component, then change thisdir. + if test "x$destdir" != "x$file"; then + case "$destdir" in + [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;; + *) thisdir="$thisdir/$destdir" ;; + esac + fi + + file=`$ECHO "$file" | /bin/sed 's%^.*/%%'` + file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'` + done + + # Usually 'no', except on cygwin/mingw when embedded into + # the cwrapper. + WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no + if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then + # special case for '.' + if test "$thisdir" = "."; then + thisdir=`pwd` + fi + # remove .libs from thisdir + case "$thisdir" in + *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;; + .libs ) thisdir=. ;; + esac + fi + + # Try to get the absolute directory name. + absdir=`cd "$thisdir" && pwd` + test -n "$absdir" && thisdir="$absdir" + + program=lt-'unit-test-client' + progdir="$thisdir/.libs" + + if test ! -f "$progdir/$program" || + { file=`ls -1dt "$progdir/$program" "$progdir/../$program" 2>/dev/null | /bin/sed 1q`; \ + test "X$file" != "X$progdir/$program"; }; then + + file="$$-$program" + + if test ! -d "$progdir"; then + mkdir "$progdir" + else + rm -f "$progdir/$file" + fi + + # relink executable if necessary + if test -n "$relink_command"; then + if relink_command_output=`eval $relink_command 2>&1`; then : + else + printf %s\n "$relink_command_output" >&2 + rm -f "$progdir/$file" + exit 1 + fi + fi + + mv -f "$progdir/$file" "$progdir/$program" 2>/dev/null || + { rm -f "$progdir/$program"; + mv -f "$progdir/$file" "$progdir/$program"; } + rm -f "$progdir/$file" + fi + + if test -f "$progdir/$program"; then + if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then + # Run the actual program with our arguments. + func_exec_program ${1+"$@"} + fi + else + # The program doesn't exist. + $ECHO "$0: error: \`$progdir/$program' does not exist" 1>&2 + $ECHO "This script is just a wrapper for $program." 1>&2 + $ECHO "See the libtool documentation for more information." 1>&2 + exit 1 + fi +fi diff --git a/tests/unit-test-client.c b/tests/unit-test-client.c new file mode 100644 index 0000000..533e6a7 --- /dev/null +++ b/tests/unit-test-client.c @@ -0,0 +1,690 @@ +/* + * Copyright © 2008-2010 Stéphane Raimbault <stephane.raimbault@gmail.com> + * + * 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 3 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 <errno.h> +#include <modbus.h> + +#include "unit-test.h" + +enum { + TCP, + TCP_PI, + RTU +}; + +int main(int argc, char *argv[]) +{ + uint8_t *tab_rp_bits; + uint16_t *tab_rp_registers; + uint16_t *tab_rp_registers_bad; + modbus_t *ctx; + int i; + uint8_t value; + int nb_points; + int rc; + float real; + struct timeval old_response_timeout; + struct timeval response_timeout; + int use_backend; + + if (argc > 1) { + if (strcmp(argv[1], "tcp") == 0) { + use_backend = TCP; + } else if (strcmp(argv[1], "tcppi") == 0) { + use_backend = TCP_PI; + } else if (strcmp(argv[1], "rtu") == 0) { + use_backend = RTU; + } else { + printf("Usage:\n %s [tcp|tcppi|rtu] - Modbus client for unit testing\n\n", argv[0]); + exit(1); + } + } else { + /* By default */ + use_backend = TCP; + } + + if (use_backend == TCP) { + ctx = modbus_new_tcp("127.0.0.1", 1502); + } else if (use_backend == TCP_PI) { + ctx = modbus_new_tcp_pi("::1", "1502"); + } else { + ctx = modbus_new_rtu("/dev/ttyUSB1", 115200, 'N', 8, 1); + } + if (ctx == NULL) { + fprintf(stderr, "Unable to allocate libmodbus context\n"); + return -1; + } + modbus_set_debug(ctx, TRUE); + modbus_set_error_recovery(ctx, + MODBUS_ERROR_RECOVERY_LINK | + MODBUS_ERROR_RECOVERY_PROTOCOL); + + if (use_backend == RTU) { + modbus_set_slave(ctx, SERVER_ID); + } + + if (modbus_connect(ctx) == -1) { + fprintf(stderr, "Connection failed: %s\n", + modbus_strerror(errno)); + modbus_free(ctx); + return -1; + } + + /* Allocate and initialize the memory to store the bits */ + nb_points = (UT_BITS_NB > UT_INPUT_BITS_NB) ? UT_BITS_NB : UT_INPUT_BITS_NB; + tab_rp_bits = (uint8_t *) malloc(nb_points * sizeof(uint8_t)); + memset(tab_rp_bits, 0, nb_points * sizeof(uint8_t)); + + /* Allocate and initialize the memory to store the registers */ + nb_points = (UT_REGISTERS_NB > UT_INPUT_REGISTERS_NB) ? + UT_REGISTERS_NB : UT_INPUT_REGISTERS_NB; + 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("\nTEST WRITE/READ:\n"); + + /** COIL BITS **/ + + /* Single */ + rc = modbus_write_bit(ctx, UT_BITS_ADDRESS, ON); + printf("1/2 modbus_write_bit: "); + if (rc == 1) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_bits(ctx, UT_BITS_ADDRESS, 1, tab_rp_bits); + printf("2/2 modbus_read_bits: "); + if (rc != 1) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + if (tab_rp_bits[0] != ON) { + printf("FAILED (%0X = != %0X)\n", tab_rp_bits[0], ON); + goto close; + } + printf("OK\n"); + /* End single */ + + /* Multiple bits */ + { + uint8_t tab_value[UT_BITS_NB]; + + modbus_set_bits_from_bytes(tab_value, 0, UT_BITS_NB, UT_BITS_TAB); + rc = modbus_write_bits(ctx, UT_BITS_ADDRESS, + UT_BITS_NB, tab_value); + printf("1/2 modbus_write_bits: "); + if (rc == UT_BITS_NB) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + } + + rc = modbus_read_bits(ctx, UT_BITS_ADDRESS, UT_BITS_NB, tab_rp_bits); + printf("2/2 modbus_read_bits: "); + if (rc != UT_BITS_NB) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + i = 0; + nb_points = UT_BITS_NB; + while (nb_points > 0) { + int nb_bits = (nb_points > 8) ? 8 : nb_points; + + value = modbus_get_byte_from_bits(tab_rp_bits, i*8, nb_bits); + if (value != UT_BITS_TAB[i]) { + printf("FAILED (%0X != %0X)\n", value, UT_BITS_TAB[i]); + goto close; + } + + nb_points -= nb_bits; + i++; + } + printf("OK\n"); + /* End of multiple bits */ + + /** DISCRETE INPUTS **/ + rc = modbus_read_input_bits(ctx, UT_INPUT_BITS_ADDRESS, + UT_INPUT_BITS_NB, tab_rp_bits); + printf("1/1 modbus_read_input_bits: "); + + if (rc != UT_INPUT_BITS_NB) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + i = 0; + nb_points = UT_INPUT_BITS_NB; + while (nb_points > 0) { + int nb_bits = (nb_points > 8) ? 8 : nb_points; + + value = modbus_get_byte_from_bits(tab_rp_bits, i*8, nb_bits); + if (value != UT_INPUT_BITS_TAB[i]) { + printf("FAILED (%0X != %0X)\n", value, UT_INPUT_BITS_TAB[i]); + goto close; + } + + nb_points -= nb_bits; + i++; + } + printf("OK\n"); + + /** HOLDING REGISTERS **/ + + /* Single register */ + rc = modbus_write_register(ctx, UT_REGISTERS_ADDRESS, 0x1234); + printf("1/2 modbus_write_register: "); + if (rc == 1) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + 1, tab_rp_registers); + printf("2/2 modbus_read_registers: "); + if (rc != 1) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + if (tab_rp_registers[0] != 0x1234) { + printf("FAILED (%0X != %0X)\n", + tab_rp_registers[0], 0x1234); + goto close; + } + printf("OK\n"); + /* End of single register */ + + /* Many registers */ + rc = modbus_write_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, UT_REGISTERS_TAB); + printf("1/5 modbus_write_registers: "); + if (rc == UT_REGISTERS_NB) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, tab_rp_registers); + printf("2/5 modbus_read_registers: "); + if (rc != UT_REGISTERS_NB) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + for (i=0; i < UT_REGISTERS_NB; i++) { + if (tab_rp_registers[i] != UT_REGISTERS_TAB[i]) { + printf("FAILED (%0X != %0X)\n", + tab_rp_registers[i], + UT_REGISTERS_TAB[i]); + goto close; + } + } + printf("OK\n"); + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + 0, tab_rp_registers); + printf("3/5 modbus_read_registers (0): "); + if (rc != 0) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + printf("OK\n"); + + nb_points = (UT_REGISTERS_NB > + UT_INPUT_REGISTERS_NB) ? + UT_REGISTERS_NB : UT_INPUT_REGISTERS_NB; + memset(tab_rp_registers, 0, nb_points * sizeof(uint16_t)); + + /* Write registers to zero from tab_rp_registers and store read registers + into tab_rp_registers. So the read registers must set to 0, except the + first one because there is an offset of 1 register on write. */ + rc = modbus_write_and_read_registers(ctx, + UT_REGISTERS_ADDRESS + 1, UT_REGISTERS_NB - 1, + tab_rp_registers, + UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, + tab_rp_registers); + printf("4/5 modbus_write_and_read_registers: "); + if (rc != UT_REGISTERS_NB) { + printf("FAILED (nb points %d != %d)\n", rc, UT_REGISTERS_NB); + goto close; + } + + if (tab_rp_registers[0] != UT_REGISTERS_TAB[0]) { + printf("FAILED (%0X != %0X)\n", + tab_rp_registers[0], UT_REGISTERS_TAB[0]); + } + + for (i=1; i < UT_REGISTERS_NB; i++) { + if (tab_rp_registers[i] != 0) { + printf("FAILED (%0X != %0X)\n", + tab_rp_registers[i], 0); + goto close; + } + } + printf("OK\n"); + + /* End of many registers */ + + + /** INPUT REGISTERS **/ + rc = modbus_read_input_registers(ctx, UT_INPUT_REGISTERS_ADDRESS, + UT_INPUT_REGISTERS_NB, + tab_rp_registers); + printf("1/1 modbus_read_input_registers: "); + if (rc != UT_INPUT_REGISTERS_NB) { + printf("FAILED (nb points %d)\n", rc); + goto close; + } + + for (i=0; i < UT_INPUT_REGISTERS_NB; 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"); + + printf("\nTEST FLOATS\n"); + /** FLOAT **/ + printf("1/2 Set float: "); + modbus_set_float(UT_REAL, tab_rp_registers); + if (tab_rp_registers[1] == (UT_IREAL >> 16) && + tab_rp_registers[0] == (UT_IREAL & 0xFFFF)) { + printf("OK\n"); + } else { + printf("FAILED (%x != %x)\n", + *((uint32_t *)tab_rp_registers), UT_IREAL); + goto close; + } + + printf("2/2 Get float: "); + real = modbus_get_float(tab_rp_registers); + if (real == UT_REAL) { + printf("OK\n"); + } else { + printf("FAILED (%f != %f)\n", real, UT_REAL); + goto close; + } + + printf("\nAt this point, error messages doesn't mean the test has failed\n"); + + /** ILLEGAL DATA ADDRESS **/ + printf("\nTEST ILLEGAL DATA ADDRESS:\n"); + + /* The mapping begins at 0 and ends at address + nb_points so + * the addresses are not valid. */ + + rc = modbus_read_bits(ctx, UT_BITS_ADDRESS, + UT_BITS_NB + 1, tab_rp_bits); + printf("* modbus_read_bits: "); + if (rc == -1 && errno == EMBXILADD) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_input_bits(ctx, UT_INPUT_BITS_ADDRESS, + UT_INPUT_BITS_NB + 1, tab_rp_bits); + printf("* modbus_read_input_bits: "); + if (rc == -1 && errno == EMBXILADD) + printf("OK\n"); + else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB + 1, tab_rp_registers); + printf("* modbus_read_registers: "); + if (rc == -1 && errno == EMBXILADD) + printf("OK\n"); + else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_input_registers(ctx, UT_INPUT_REGISTERS_ADDRESS, + UT_INPUT_REGISTERS_NB + 1, + tab_rp_registers); + printf("* modbus_read_input_registers: "); + if (rc == -1 && errno == EMBXILADD) + printf("OK\n"); + else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_write_bit(ctx, UT_BITS_ADDRESS + UT_BITS_NB, ON); + printf("* modbus_write_bit: "); + if (rc == -1 && errno == EMBXILADD) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_write_bits(ctx, UT_BITS_ADDRESS + UT_BITS_NB, + UT_BITS_NB, tab_rp_bits); + printf("* modbus_write_coils: "); + if (rc == -1 && errno == EMBXILADD) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_write_registers(ctx, UT_REGISTERS_ADDRESS + UT_REGISTERS_NB, + UT_REGISTERS_NB, tab_rp_registers); + printf("* modbus_write_registers: "); + if (rc == -1 && errno == EMBXILADD) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + + /** TOO MANY DATA **/ + printf("\nTEST TOO MANY DATA ERROR:\n"); + + rc = modbus_read_bits(ctx, UT_BITS_ADDRESS, + MODBUS_MAX_READ_BITS + 1, tab_rp_bits); + printf("* modbus_read_bits: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_input_bits(ctx, UT_INPUT_BITS_ADDRESS, + MODBUS_MAX_READ_BITS + 1, tab_rp_bits); + printf("* modbus_read_input_bits: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + MODBUS_MAX_READ_REGISTERS + 1, + tab_rp_registers); + printf("* modbus_read_registers: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_read_input_registers(ctx, UT_INPUT_REGISTERS_ADDRESS, + MODBUS_MAX_READ_REGISTERS + 1, + tab_rp_registers); + printf("* modbus_read_input_registers: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + rc = modbus_write_bits(ctx, UT_BITS_ADDRESS, + MODBUS_MAX_WRITE_BITS + 1, tab_rp_bits); + printf("* modbus_write_bits: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + goto close; + printf("FAILED\n"); + } + + rc = modbus_write_registers(ctx, UT_REGISTERS_ADDRESS, + MODBUS_MAX_WRITE_REGISTERS + 1, + tab_rp_registers); + printf("* modbus_write_registers: "); + if (rc == -1 && errno == EMBMDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + /** SLAVE REPLY **/ + printf("\nTEST SLAVE REPLY:\n"); + modbus_set_slave(ctx, INVALID_SERVER_ID); + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, tab_rp_registers); + if (use_backend == RTU) { + const int RAW_REQ_LENGTH = 6; + uint8_t raw_req[] = { INVALID_SERVER_ID, 0x03, 0x00, 0x01, 0xFF, 0xFF }; + uint8_t rsp[MODBUS_TCP_MAX_ADU_LENGTH]; + + /* No response in RTU mode */ + printf("1/4-A No response from slave %d: ", INVALID_SERVER_ID); + + if (rc == -1 && errno == ETIMEDOUT) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + /* Send an invalid query with a wrong slave ID */ + modbus_send_raw_request(ctx, raw_req, + RAW_REQ_LENGTH * sizeof(uint8_t)); + rc = modbus_receive_confirmation(ctx, rsp); + + printf("1/4-B No response from slave %d with invalid request: ", + INVALID_SERVER_ID); + + if (rc == -1 && errno == ETIMEDOUT) { + printf("OK\n"); + } else { + printf("FAILED (%d)\n", rc); + goto close; + } + + } else { + /* Response in TCP mode */ + printf("1/4 Response from slave %d: ", 18); + + if (rc == UT_REGISTERS_NB) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + } + + rc = modbus_set_slave(ctx, MODBUS_BROADCAST_ADDRESS); + if (rc == -1) { + printf("Invalid broacast address\n"); + goto close; + } + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, tab_rp_registers); + printf("2/4 Reply after a broadcast query: "); + if (rc == UT_REGISTERS_NB) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + /* Restore slave */ + if (use_backend == RTU) { + modbus_set_slave(ctx, SERVER_ID); + } else { + modbus_set_slave(ctx, MODBUS_TCP_SLAVE); + } + + printf("3/4 Report slave ID: \n"); + /* tab_rp_bits is used to store bytes */ + rc = modbus_report_slave_id(ctx, tab_rp_bits); + if (rc == -1) { + printf("FAILED\n"); + goto close; + } + + /* Slave ID is an arbitraty number for libmodbus */ + if (rc > 0) { + printf("OK Slave ID is %d\n", tab_rp_bits[0]); + } else { + printf("FAILED\n"); + goto close; + } + + /* Run status indicator */ + if (rc > 1 && tab_rp_bits[1] == 0xFF) { + printf("OK Run Status Indicator is %s\n", tab_rp_bits[1] ? "ON" : "OFF"); + } else { + printf("FAILED\n"); + goto close; + } + + /* Print additional data as string */ + if (rc > 2) { + printf("Additional data: "); + for (i=2; i < rc; i++) { + printf("%c", tab_rp_bits[i]); + } + printf("\n"); + } + + /* Save original timeout */ + modbus_get_response_timeout(ctx, &old_response_timeout); + + /* Define a new and too short timeout */ + response_timeout.tv_sec = 0; + response_timeout.tv_usec = 0; + modbus_set_response_timeout(ctx, &response_timeout); + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB, tab_rp_registers); + printf("4/4 Too short timeout: "); + if (rc == -1 && errno == ETIMEDOUT) { + printf("OK\n"); + } else { + printf("FAILED (can fail on slow systems or Windows)\n"); + } + + /* Restore original timeout */ + modbus_set_response_timeout(ctx, &old_response_timeout); + + /* A wait and flush operation is done by the error recovery code of + * libmodbus */ + + /** BAD RESPONSE **/ + printf("\nTEST BAD RESPONSE ERROR:\n"); + + /* Allocate only the required space */ + tab_rp_registers_bad = (uint16_t *) malloc( + UT_REGISTERS_NB_SPECIAL * sizeof(uint16_t)); + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS, + UT_REGISTERS_NB_SPECIAL, tab_rp_registers_bad); + printf("* modbus_read_registers: "); + if (rc == -1 && errno == EMBBADDATA) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + free(tab_rp_registers_bad); + + /** MANUAL EXCEPTION **/ + printf("\nTEST MANUAL EXCEPTION:\n"); + + rc = modbus_read_registers(ctx, UT_REGISTERS_ADDRESS_SPECIAL, + UT_REGISTERS_NB, tab_rp_registers); + printf("* modbus_read_registers at special address: "); + if (rc == -1 && errno == EMBXSBUSY) { + printf("OK\n"); + } else { + printf("FAILED\n"); + goto close; + } + + /** RAW REQUEST */ + printf("\nTEST RAW REQUEST:\n"); + { + const int RAW_REQ_LENGTH = 6; + uint8_t raw_req[] = { (use_backend == RTU) ? SERVER_ID : 0xFF, + 0x03, 0x00, 0x01, 0x0, 0x05 }; + int req_length; + uint8_t rsp[MODBUS_TCP_MAX_ADU_LENGTH]; + + req_length = modbus_send_raw_request(ctx, raw_req, + RAW_REQ_LENGTH * sizeof(uint8_t)); + + printf("* modbus_send_raw_request: "); + if ((use_backend == RTU && req_length == (RAW_REQ_LENGTH + 2)) || + ((use_backend == TCP || use_backend == TCP_PI) && + req_length == (RAW_REQ_LENGTH + 6))) { + printf("OK\n"); + } else { + printf("FAILED (%d)\n", req_length); + goto close; + } + + printf("* modbus_receive_confirmation: "); + rc = modbus_receive_confirmation(ctx, rsp); + if ((use_backend == RTU && rc == 15) || + ((use_backend == TCP || use_backend == TCP_PI) && + rc == 19)) { + printf("OK\n"); + } else { + printf("FAILED (%d)\n", rc); + goto close; + } + } + + printf("\nALL TESTS PASS WITH SUCCESS.\n"); + +close: + /* Free the memory */ + free(tab_rp_bits); + free(tab_rp_registers); + + /* Close the connection */ + modbus_close(ctx); + modbus_free(ctx); + + return 0; +} diff --git a/tests/unit-test-client.o b/tests/unit-test-client.o Binary files differnew file mode 100644 index 0000000..8358604 --- /dev/null +++ b/tests/unit-test-client.o |