wmbusmeters/src/testinternals.cc

522 wiersze
18 KiB
C++

/*
Copyright (C) 2018-2020 Fredrik Öhrström
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"aescmac.h"
#include"cmdline.h"
#include"config.h"
#include"meters.h"
#include"printer.h"
#include"serial.h"
#include"util.h"
#include"wmbus.h"
#include"dvparser.h"
#include<string.h>
using namespace std;
int test_crc();
int test_dvparser();
int test_linkmodes();
void test_ids();
void test_kdf();
void test_periods();
void test_devices();
int main(int argc, char **argv)
{
if (argc > 1) {
// Supply --debug (oh well, anything works) to enable debug mode.
debugEnabled(true);
}
onExit([](){});
test_crc();
test_dvparser();
test_linkmodes();
test_ids();
test_kdf();
test_periods();
test_devices();
return 0;
}
int test_crc()
{
int rc = 0;
unsigned char data[4];
data[0] = 0x01;
data[1] = 0xfd;
data[2] = 0x1f;
data[3] = 0x01;
uint16_t crc = crc16_EN13757(data, 4);
if (crc != 0xcc22) {
printf("ERROR! %4x should be cc22\n", crc);
rc = -1;
}
data[3] = 0x00;
crc = crc16_EN13757(data, 4);
if (crc != 0xf147) {
printf("ERROR! %4x should be f147\n", crc);
rc = -1;
}
uchar block[10];
block[0]=0xEE;
block[1]=0x44;
block[2]=0x9A;
block[3]=0xCE;
block[4]=0x01;
block[5]=0x00;
block[6]=0x00;
block[7]=0x80;
block[8]=0x23;
block[9]=0x07;
crc = crc16_EN13757(block, 10);
if (crc != 0xaabc) {
printf("ERROR! %4x should be aabc\n", crc);
rc = -1;
}
block[0]='1';
block[1]='2';
block[2]='3';
block[3]='4';
block[4]='5';
block[5]='6';
block[6]='7';
block[7]='8';
block[8]='9';
crc = crc16_EN13757(block, 9);
if (crc != 0xc2b7) {
printf("ERROR! %4x should be c2b7\n", crc);
rc = -1;
}
return rc;
}
int test_parse(const char *data, std::map<std::string,std::pair<int,DVEntry>> *values, int testnr)
{
debug("\n\nTest nr %d......\n\n", testnr);
bool b;
Telegram t;
vector<uchar> databytes;
hex2bin(data, &databytes);
vector<uchar>::iterator i = databytes.begin();
b = parseDV(&t, databytes, i, databytes.size(), values);
return b;
}
void test_double(map<string,pair<int,DVEntry>> &values, const char *key, double v, int testnr)
{
int offset;
double value;
bool b = extractDVdouble(&values,
key,
&offset,
&value);
if (!b || value != v) {
fprintf(stderr, "Error in dvparser testnr %d: got %lf but expected value %lf for key %s\n", testnr, value, v, key);
}
}
void test_string(map<string,pair<int,DVEntry>> &values, const char *key, const char *v, int testnr)
{
int offset;
string value;
bool b = extractDVstring(&values,
key,
&offset,
&value);
if (!b || value != v) {
fprintf(stderr, "Error in dvparser testnr %d: got \"%s\" but expected value \"%s\" for key %s\n", testnr, value.c_str(), v, key);
}
}
void test_date(map<string,pair<int,DVEntry>> &values, const char *key, string date_expected, int testnr)
{
int offset;
struct tm value;
bool b = extractDVdate(&values,
key,
&offset,
&value);
char buf[256];
strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", &value);
string date_got = buf;
if (!b || date_got != date_expected) {
fprintf(stderr, "Error in dvparser testnr %d:\ngot >%s< but expected >%s< for key %s\n\n", testnr, date_got.c_str(), date_expected.c_str(), key);
}
}
int test_dvparser()
{
map<string,pair<int,DVEntry>> values;
int testnr = 1;
test_parse("2F 2F 0B 13 56 34 12 8B 82 00 93 3E 67 45 23 0D FD 10 0A 30 31 32 33 34 35 36 37 38 39 0F 88 2F", &values, testnr);
test_double(values, "0B13", 123.456, testnr);
test_double(values, "8B8200933E", 234.567, testnr);
test_string(values, "0DFD10", "30313233343536373839", testnr);
testnr++;
values.clear();
test_parse("82046C 5f1C", &values, testnr);
test_date(values, "82046C", "2010-12-31 00:00:00", testnr); // 2010-dec-31
testnr++;
values.clear();
test_parse("0C1348550000426CE1F14C130000000082046C21298C0413330000008D04931E3A3CFE3300000033000000330000003300000033000000330000003300000033000000330000003300000033000000330000004300000034180000046D0D0B5C2B03FD6C5E150082206C5C290BFD0F0200018C4079678885238310FD3100000082106C01018110FD610002FD66020002FD170000", &values, testnr);
test_double(values, "0C13", 5.548, testnr);
test_date(values, "426C", "2127-01-01 00:00:00", testnr); // 2127-jan-1
test_date(values, "82106C", "2000-01-01 00:00:00", testnr); // 2000-jan-1
testnr++;
values.clear();
test_parse("426C FE04", &values, testnr);
test_date(values, "426C", "2007-04-30 00:00:00", testnr); // 2010-dec-31
return 0;
}
int test_linkmodes()
{
LinkModeCalculationResult lmcr;
auto manager = createSerialCommunicationManager(0, 0, false);
auto serial1 = manager->createSerialDeviceSimulator();
auto serial2 = manager->createSerialDeviceSimulator();
auto serial3 = manager->createSerialDeviceSimulator();
auto serial4 = manager->createSerialDeviceSimulator();
vector<string> no_meter_shells, no_meter_jsons;
unique_ptr<WMBus> wmbus_im871a = openIM871A("", manager.get(), std::move(serial1));
unique_ptr<WMBus> wmbus_amb8465 = openAMB8465("", manager.get(), std::move(serial2));
unique_ptr<WMBus> wmbus_rtlwmbus = openRTLWMBUS("", "", manager.get(), [](){}, std::move(serial3));
unique_ptr<WMBus> wmbus_rawtty = openRawTTY("", 0, manager.get(), std::move(serial4));
Configuration nometers_config;
// Check that if no meters are supplied then you must set a link mode.
nometers_config.link_mode_configured = false;
lmcr = calculateLinkModes(&nometers_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::NoMetersMustSupplyModes)
{
printf("ERROR! Expected failure due to automatic deduction! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test0 OK\n\n");
nometers_config.link_mode_configured = true;
nometers_config.listen_to_link_modes.addLinkMode(LinkMode::T1);
lmcr = calculateLinkModes(&nometers_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::Success)
{
printf("ERROR! Expected succcess! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test0.0 OK\n\n");
Configuration apator_config;
string apator162 = "apator162";
apator_config.meters.push_back(MeterInfo("m1", apator162, "12345678", "",
toMeterLinkModeSet(apator162),
no_meter_shells,
no_meter_jsons));
// Check that if no explicit link modes are provided to apator162, then
// automatic deduction will fail, since apator162 can be configured to transmit
// either C1 or T1 telegrams.
apator_config.link_mode_configured = false;
lmcr = calculateLinkModes(&apator_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::AutomaticDeductionFailed)
{
printf("ERROR! Expected failure due to automatic deduction! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test1 OK\n\n");
// Check that if we supply the link mode T1 when using an apator162, then
// automatic deduction will succeeed.
apator_config.link_mode_configured = true;
apator_config.listen_to_link_modes = LinkModeSet();
apator_config.listen_to_link_modes.addLinkMode(LinkMode::T1);
apator_config.listen_to_link_modes.addLinkMode(LinkMode::C1);
lmcr = calculateLinkModes(&apator_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::DongleCannotListenTo)
{
printf("ERROR! Expected dongle cannot listen to! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test2 OK\n\n");
lmcr = calculateLinkModes(&apator_config, wmbus_rtlwmbus.get());
if (lmcr.type != LinkModeCalculationResultType::Success)
{
printf("ERROR! Expected success! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test3 OK\n\n");
Configuration multical21_and_supercom587_config;
string multical21 = "multical21";
string supercom587 = "supercom587";
multical21_and_supercom587_config.meters.push_back(MeterInfo("m1", multical21, "12345678", "",
toMeterLinkModeSet(multical21),
no_meter_shells,
no_meter_jsons));
multical21_and_supercom587_config.meters.push_back(MeterInfo("m2", supercom587, "12345678", "",
toMeterLinkModeSet(supercom587),
no_meter_shells,
no_meter_jsons));
// Check that meters that transmit on two different link modes cannot be listened to
// at the same time using im871a.
multical21_and_supercom587_config.link_mode_configured = false;
lmcr = calculateLinkModes(&multical21_and_supercom587_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::AutomaticDeductionFailed)
{
printf("ERROR! Expected failure due to automatic deduction! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test4 OK\n\n");
// Explicitly set T1
multical21_and_supercom587_config.link_mode_configured = true;
multical21_and_supercom587_config.listen_to_link_modes = LinkModeSet();
multical21_and_supercom587_config.listen_to_link_modes.addLinkMode(LinkMode::T1);
lmcr = calculateLinkModes(&multical21_and_supercom587_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::MightMissTelegrams)
{
printf("ERROR! Expected might miss telegrams! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test5 OK\n\n");
// Explicitly set N1a, but the meters transmit on C1 and T1.
multical21_and_supercom587_config.link_mode_configured = true;
multical21_and_supercom587_config.listen_to_link_modes = LinkModeSet();
multical21_and_supercom587_config.listen_to_link_modes.addLinkMode(LinkMode::N1a);
lmcr = calculateLinkModes(&multical21_and_supercom587_config, wmbus_im871a.get());
if (lmcr.type != LinkModeCalculationResultType::MightMissTelegrams)
{
printf("ERROR! Expected no meter can be heard! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test6 OK\n\n");
// Explicitly set N1a, but it is an amber dongle.
multical21_and_supercom587_config.link_mode_configured = true;
multical21_and_supercom587_config.listen_to_link_modes = LinkModeSet();
multical21_and_supercom587_config.listen_to_link_modes.addLinkMode(LinkMode::N1a);
lmcr = calculateLinkModes(&multical21_and_supercom587_config, wmbus_amb8465.get());
if (lmcr.type != LinkModeCalculationResultType::DongleCannotListenTo)
{
printf("ERROR! Expected dongle cannot listen to! Got instead:\n%s\n", lmcr.msg.c_str());
}
debug("test7 OK\n\n");
manager->stop();
return 0;
}
void test_valid_match_expression(string s, bool expected)
{
bool b = isValidMatchExpressions(s, false);
if (b == expected) return;
if (expected == true)
{
printf("ERROR! Expected \"%s\" to be valid! But it was not!\n", s.c_str());
}
else
{
printf("ERROR! Expected \"%s\" to be invalid! But it was reported as valid!\n", s.c_str());
}
}
void test_does_id_match_expression(string id, string mes, bool expected)
{
vector<string> expressions = splitMatchExpressions(mes);
bool b = doesIdMatchExpressions(id, expressions);
if (b == expected) return;
if (expected == true)
{
printf("ERROR! Expected \"%s\" to match \"%s\" ! But it did not!\n", id.c_str(), mes.c_str());
}
else
{
printf("ERROR! Expected \"%s\" to NOT match \"%s\" ! But it did!\n", id.c_str(), mes.c_str());
}
}
void test_ids()
{
test_valid_match_expression("12345678", true);
test_valid_match_expression("*", true);
test_valid_match_expression("!12345678", true);
test_valid_match_expression("12345*", true);
test_valid_match_expression("!123456*", true);
test_valid_match_expression("1234567", false);
test_valid_match_expression("", false);
test_valid_match_expression("z1234567", false);
test_valid_match_expression("123456789", false);
test_valid_match_expression("!!12345678", false);
test_valid_match_expression("12345678*", false);
test_valid_match_expression("**", false);
test_valid_match_expression("123**", false);
test_valid_match_expression("2222*,!22224444", true);
test_does_id_match_expression("12345678", "12345678", true);
test_does_id_match_expression("12345678", "*", true);
test_does_id_match_expression("12345678", "2*", false);
test_does_id_match_expression("12345678", "*,!2*", true);
test_does_id_match_expression("22222222", "22*,!22222222", false);
test_does_id_match_expression("22222223", "22*,!22222222", true);
test_does_id_match_expression("22222223", "*,!22*", false);
test_does_id_match_expression("12333333", "123*,!1234*,!1235*,!1236*", true);
test_does_id_match_expression("12366666", "123*,!1234*,!1235*,!1236*", false);
test_does_id_match_expression("11223344", "22*,33*,44*,55*", false);
test_does_id_match_expression("55223344", "22*,33*,44*,55*", true);
test_does_id_match_expression("78563413", "78563412,78563413", true);
test_does_id_match_expression("78563413", "*,!00156327,!00048713", true);
}
void eq(string a, string b, const char *tn)
{
if (a != b)
{
printf("ERROR in test %s expected \"%s\" to be equal to \"%s\"\n", tn, a.c_str(), b.c_str());
}
}
void eqn(int a, int b, const char *tn)
{
if (a != b)
{
printf("ERROR in test %s expected %d to be equal to %d\n", tn, a, b);
}
}
void test_kdf()
{
vector<uchar> key;
vector<uchar> input;
vector<uchar> mac;
hex2bin("2b7e151628aed2a6abf7158809cf4f3c", &key);
mac.resize(16);
AES_CMAC(&key[0], &input[0], 0, &mac[0]);
string s = bin2hex(mac);
string ex = "BB1D6929E95937287FA37D129B756746";
if (s != ex)
{
printf("ERROR in aes-cmac expected \"%s\" but got \"%s\"\n", ex.c_str(), s.c_str());
}
input.clear();
hex2bin("6bc1bee22e409f96e93d7e117393172a", &input);
AES_CMAC(&key[0], &input[0], 16, &mac[0]);
s = bin2hex(mac);
ex = "070A16B46B4D4144F79BDD9DD04A287C";
if (s != ex)
{
printf("ERROR in aes-cmac expected \"%s\" but got \"%s\"\n", ex.c_str(), s.c_str());
}
}
void testp(time_t now, string period, bool expected)
{
bool rc = isInsideTimePeriod(now, period);
char buf[256];
struct tm now_tm {};
localtime_r(&now, &now_tm);
strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M %A", &now_tm);
string nows = buf;
if (expected == true && rc == false)
{
printf("ERROR in period test is \"%s\" in period \"%s\"? Expected true but got false!\n", nows.c_str(), period.c_str());
}
if (expected == false && rc == true)
{
printf("ERROR in period test is \"%s\" in period \"%s\"? Expected false but got true!\n", nows.c_str(), period.c_str());
}
}
void test_periods()
{
// 3600*24*7+3600 means 1970-01-08 01:00 Thursday in Greenwich.
// However your local time is adjusted with your timezone.
// Get your timezone offset tm_gmtoff into the value.
time_t t = 3600*24*7+3600;
struct tm value {};
localtime_r(&t, &value);
// if tm_gmtoff is zero, then we are in Greenwich!
// if tm_gmtoff is 3600 then we are in Stockholm!
t -= value.tm_gmtoff;
// We have now adjusted the t so that it should be thursday at 1 am.
// The following test should therefore work inependently on
// where in the world this test is run.
testp(t, "mon-sun(00-23)", true);
testp(t, "mon(00-23)", false);
testp(t, "thu-fri(01-01)", true);
testp(t, "mon-wed(00-23),thu(02-23),fri-sun(00-23)", false);
testp(t, "mon-wed(00-23),thu(01-23),fri-sun(00-23)", true);
testp(t, "thu(00-00)", false);
testp(t, "thu(01-01)", true);
}
void testd(string arg, string xf, string xs, string xl, bool xok)
{
Device d;
bool ok = isPossibleDevice(arg, &d);
if (ok != xok)
{
printf("ERROR in device parsing \"%s\"\n", arg.c_str());
return;
}
if (ok == false) return;
if (xf != d.file ||
xs != d.suffix ||
xl != d.linkmodes)
{
printf("ERROR in device parsing parts \"%s\"\n", arg.c_str());
}
}
void test_devices()
{
testd("auto", "auto", "", "", true);
testd("/dev/ttyUSB0:9600", "/dev/ttyUSB0", "9600", "", true);
testd("auto:gurka", "", "", "", false);
}