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Prusa-Firmware-MMU/tests/unit/modules/protocol/test_protocol.cpp

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#include "catch2/catch.hpp"
#include "../logic/error_codes.h"
#include "../logic/progress_codes.h"
#include "protocol.h"
#include <array>
// some safe margin for the buffer
using TXBuff = std::array<uint8_t, 2 * std::max(mp::Protocol::MaxRequestSize(), mp::Protocol::MaxResponseSize())>;
TEST_CASE("protocol::Char2Nibble2Char", "[protocol]") {
uint8_t character, value;
std::tie(character, value) = GENERATE(
std::make_tuple('0', 0),
std::make_tuple('1', 1),
std::make_tuple('2', 2),
std::make_tuple('3', 3),
std::make_tuple('4', 4),
std::make_tuple('5', 5),
std::make_tuple('6', 6),
std::make_tuple('7', 7),
std::make_tuple('8', 8),
std::make_tuple('9', 9),
std::make_tuple('a', 0xa),
std::make_tuple('b', 0xb),
std::make_tuple('c', 0xc),
std::make_tuple('d', 0xd),
std::make_tuple('e', 0xe),
std::make_tuple('f', 0xf),
std::make_tuple('g', 0) // invalid character defaults to 0
);
REQUIRE(mp::Protocol::Char2Nibble(character) == value);
if (character != 'g') { // skip the invalid char
REQUIRE(mp::Protocol::Nibble2Char(value) == character);
}
}
TEST_CASE("protocol::Value2Hex", "[protocol]") {
for (uint32_t v = 0; v < 0xffff; ++v) {
constexpr size_t buffSize = 5;
uint8_t tmp[buffSize];
uint8_t chars = mp::Protocol::UInt16ToHex((uint16_t)v, tmp);
if (v < 0x10) {
REQUIRE(chars == 1);
} else if (v < 0x100) {
REQUIRE(chars == 2);
} else if (v < 0x1000) {
REQUIRE(chars == 3);
} else if (v < 0x10000) {
REQUIRE(chars == 4);
}
std::string tmps(tmp, tmp + chars);
REQUIRE(std::stoul(tmps, nullptr, 16) == v);
}
}
std::string MakeCRC(uint8_t crc) {
char tmp[5]; // *ffn are 4 bytes + \0 at the end
snprintf(tmp, 5, "*%x\n", (unsigned)crc);
return std::string(tmp);
}
std::string MakeCRC(const std::string_view src) {
// this code basically needs parsing of the input text and compute the CRC from the parsed data
REQUIRE(src.size() > 1);
// code
uint8_t crc = modules::crc::CRC8::CCITT_updateCX(0, src[0]);
// scan hex value
uint8_t rqValue = std::stoul(src.data() + 1, nullptr, 16);
crc = modules::crc::CRC8::CCITT_updateCX(crc, rqValue);
crc = modules::crc::CRC8::CCITT_updateW(crc, 0);
if (!src[2])
return MakeCRC(crc); // eof
// [2] is a space
REQUIRE(src.size() > 3);
crc = modules::crc::CRC8::CCITT_updateCX(crc, src[3]); // param code
if (!src[4])
return MakeCRC(crc); // eof
REQUIRE(src.size() > 4);
uint16_t paramValue = std::stoul(src.data() + 4, nullptr, 16);
crc = modules::crc::CRC8::CCITT_updateW(crc, paramValue);
return MakeCRC(crc);
}
TEST_CASE("protocol::EncodeRequests", "[protocol]") {
mp::RequestMsgCodes code;
uint8_t value;
std::string str;
std::tie(code, value, str) = GENERATE(
std::make_tuple(mp::RequestMsgCodes::Button, 0, "B0"),
std::make_tuple(mp::RequestMsgCodes::Button, 1, "B1"),
std::make_tuple(mp::RequestMsgCodes::Button, 2, "B2"),
std::make_tuple(mp::RequestMsgCodes::Cut, 0, "K0"),
std::make_tuple(mp::RequestMsgCodes::Eject, 0, "E0"),
std::make_tuple(mp::RequestMsgCodes::Finda, 0, "P0"),
std::make_tuple(mp::RequestMsgCodes::Home, 0, "H0"),
std::make_tuple(mp::RequestMsgCodes::Load, 0, "L0"),
std::make_tuple(mp::RequestMsgCodes::Load, 1, "L1"),
std::make_tuple(mp::RequestMsgCodes::Load, 2, "L2"),
std::make_tuple(mp::RequestMsgCodes::Load, 3, "L3"),
std::make_tuple(mp::RequestMsgCodes::Load, 4, "L4"),
std::make_tuple(mp::RequestMsgCodes::Mode, 0, "M0"),
std::make_tuple(mp::RequestMsgCodes::Mode, 1, "M1"),
std::make_tuple(mp::RequestMsgCodes::Query, 0, "Q0"),
std::make_tuple(mp::RequestMsgCodes::Reset, 0, "X0"),
std::make_tuple(mp::RequestMsgCodes::Tool, 0, "T0"),
std::make_tuple(mp::RequestMsgCodes::Tool, 1, "T1"),
std::make_tuple(mp::RequestMsgCodes::Tool, 2, "T2"),
std::make_tuple(mp::RequestMsgCodes::Tool, 3, "T3"),
std::make_tuple(mp::RequestMsgCodes::Tool, 4, "T4"),
std::make_tuple(mp::RequestMsgCodes::Unload, 0, "U0"),
std::make_tuple(mp::RequestMsgCodes::Version, 0, "S0"),
std::make_tuple(mp::RequestMsgCodes::Version, 1, "S1"),
std::make_tuple(mp::RequestMsgCodes::Version, 2, "S2")
/*std::make_tuple(mp::RequestMsgCodes::unknown, 0, "\00")*/);
TXBuff txbuff;
mp::RequestMsg msg(code, value);
str.append(MakeCRC(msg.CRC()));
uint8_t packetSize = mp::Protocol::EncodeRequest(msg, txbuff.data());
REQUIRE(packetSize < mp::Protocol::MaxRequestSize());
CHECK(packetSize <= 6);
for (uint8_t i = 0; i < packetSize; ++i) {
CHECK(str[i] == txbuff[i]);
}
}
TEST_CASE("protocol::EncodeResponseCmdAR", "[protocol]") {
auto requestMsg = GENERATE(
mp::RequestMsg(mp::RequestMsgCodes::Button, 0),
mp::RequestMsg(mp::RequestMsgCodes::Button, 1),
mp::RequestMsg(mp::RequestMsgCodes::Button, 2),
mp::RequestMsg(mp::RequestMsgCodes::Cut, 0),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 0),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 1),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 2),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 3),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 4),
mp::RequestMsg(mp::RequestMsgCodes::Home, 0),
mp::RequestMsg(mp::RequestMsgCodes::Home, 1),
mp::RequestMsg(mp::RequestMsgCodes::Home, 2),
mp::RequestMsg(mp::RequestMsgCodes::FilamentType, 0),
mp::RequestMsg(mp::RequestMsgCodes::FilamentType, 1),
mp::RequestMsg(mp::RequestMsgCodes::FilamentSensor, 0),
mp::RequestMsg(mp::RequestMsgCodes::FilamentSensor, 1),
mp::RequestMsg(mp::RequestMsgCodes::Load, 0),
mp::RequestMsg(mp::RequestMsgCodes::Load, 1),
mp::RequestMsg(mp::RequestMsgCodes::Load, 2),
mp::RequestMsg(mp::RequestMsgCodes::Load, 3),
mp::RequestMsg(mp::RequestMsgCodes::Load, 4),
mp::RequestMsg(mp::RequestMsgCodes::Mode, 0),
mp::RequestMsg(mp::RequestMsgCodes::Mode, 1),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 0),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 1),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 2),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 3),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 4),
mp::RequestMsg(mp::RequestMsgCodes::Unload, 0),
mp::RequestMsg(mp::RequestMsgCodes::Write, 0),
mp::RequestMsg(mp::RequestMsgCodes::Write, 9),
mp::RequestMsg(mp::RequestMsgCodes::Write, 0xa),
mp::RequestMsg(mp::RequestMsgCodes::Write, 0xf),
mp::RequestMsg(mp::RequestMsgCodes::Write, 10),
mp::RequestMsg(mp::RequestMsgCodes::Write, 19),
mp::RequestMsg(mp::RequestMsgCodes::Write, 0xfa),
mp::RequestMsg(mp::RequestMsgCodes::Write, 0xff));
auto responseStatus = GENERATE(mp::ResponseMsgParamCodes::Accepted, mp::ResponseMsgParamCodes::Rejected, mp::ResponseMsgParamCodes::Button);
TXBuff txbuff;
mp::ResponseMsg rsp(requestMsg, responseStatus, 0);
uint8_t msglen = mp::Protocol::EncodeResponseCmdAR(requestMsg, responseStatus, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxResponseSize());
std::string crc = MakeCRC(rsp.CRC());
if (requestMsg.value < 10) {
CHECK(msglen == 4 + crc.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == requestMsg.value + '0');
CHECK(txbuff[2] == ' ');
CHECK(txbuff[3] == (uint8_t)responseStatus);
CHECK(txbuff[4] == '*');
CHECK(txbuff[msglen - 1] == '\n');
} else if (requestMsg.value < 16) {
CHECK(msglen == 4 + crc.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == requestMsg.value - 10 + 'a');
CHECK(txbuff[2] == ' ');
CHECK(txbuff[3] == (uint8_t)responseStatus);
CHECK(txbuff[4] == '*');
CHECK(txbuff[msglen - 1] == '\n');
} else if (requestMsg.value < 0x1a) {
CHECK(msglen == 5 + crc.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == (requestMsg.value >> 4U) + '0');
CHECK(txbuff[2] == (requestMsg.value & 0xfU) + '0');
CHECK(txbuff[3] == ' ');
CHECK(txbuff[4] == (uint8_t)responseStatus);
CHECK(txbuff[5] == '*');
CHECK(txbuff[msglen - 1] == '\n');
} else {
CHECK(msglen == 5 + crc.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == (requestMsg.value >> 4U) - 10 + 'a');
CHECK(txbuff[2] == (requestMsg.value & 0xfU) - 10 + 'a');
CHECK(txbuff[3] == ' ');
CHECK(txbuff[4] == (uint8_t)responseStatus);
CHECK(txbuff[5] == '*');
CHECK(txbuff[msglen - 1] == '\n');
}
}
TEST_CASE("protocol::EncodeResponseReadFINDA", "[protocol]") {
auto requestMsg = mp::RequestMsg(mp::RequestMsgCodes::Finda, 0);
uint8_t findaStatus = GENERATE(0, 1);
TXBuff txbuff;
mp::ResponseMsg rsp(requestMsg, mp::ResponseMsgParamCodes::Accepted, findaStatus);
std::string crc = MakeCRC(rsp.CRC());
uint8_t msglen = mp::Protocol::EncodeResponseReadFINDA(requestMsg, findaStatus, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxResponseSize());
CHECK(msglen == 5 + crc.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == requestMsg.value + '0');
CHECK(txbuff[2] == ' ');
CHECK(txbuff[3] == (uint8_t)mp::ResponseMsgParamCodes::Accepted);
CHECK(txbuff[4] == findaStatus + '0');
CHECK(txbuff[5] == '*');
CHECK(txbuff[msglen - 1] == '\n');
}
TEST_CASE("protocol::EncodeResponseVersion", "[protocol]") {
std::uint8_t versionQueryType = GENERATE(0, 1, 2, 3);
auto requestMsg = mp::RequestMsg(mp::RequestMsgCodes::Version, versionQueryType);
for (uint32_t version = 0; version < 0xffff; ++version) {
TXBuff txbuff;
mp::ResponseMsg rsp(requestMsg, mp::ResponseMsgParamCodes::Accepted, (uint16_t)version);
uint8_t msglen = mp::Protocol::EncodeResponseRead(requestMsg, true, (uint16_t)version, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxResponseSize());
std::string crc = MakeCRC(rsp.CRC());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == requestMsg.value + '0');
CHECK(txbuff[2] == ' ');
CHECK(txbuff[3] == (uint8_t)mp::ResponseMsgParamCodes::Accepted);
char chk[10];
int chars = snprintf(chk, sizeof(chk), "%x", version);
REQUIRE(chars < 10);
std::string chks(chk, chk + chars);
chks.append(crc);
std::string vers((const char *)(&txbuff[4]), (const char *)(&txbuff[msglen]));
REQUIRE(chks == vers);
CHECK(txbuff[msglen - 1] == '\n');
}
}
TEST_CASE("protocol::EncodeResponseQueryOperation", "[protocol]") {
auto requestMsg = GENERATE(
mp::RequestMsg(mp::RequestMsgCodes::Cut, 0),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 0),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 1),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 2),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 3),
mp::RequestMsg(mp::RequestMsgCodes::Eject, 4),
mp::RequestMsg(mp::RequestMsgCodes::Home, 0),
mp::RequestMsg(mp::RequestMsgCodes::Home, 1),
mp::RequestMsg(mp::RequestMsgCodes::Home, 2),
mp::RequestMsg(mp::RequestMsgCodes::Load, 0),
mp::RequestMsg(mp::RequestMsgCodes::Load, 1),
mp::RequestMsg(mp::RequestMsgCodes::Load, 2),
mp::RequestMsg(mp::RequestMsgCodes::Load, 3),
mp::RequestMsg(mp::RequestMsgCodes::Load, 4),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 0),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 1),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 2),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 3),
mp::RequestMsg(mp::RequestMsgCodes::Tool, 4),
mp::RequestMsg(mp::RequestMsgCodes::Unload, 0));
auto responseStatus = GENERATE(mp::ResponseMsgParamCodes::Processing, mp::ResponseMsgParamCodes::Error, mp::ResponseMsgParamCodes::Finished);
auto value = GENERATE(
ProgressCode::OK,
ProgressCode::EngagingIdler,
ProgressCode::DisengagingIdler,
ProgressCode::UnloadingToFinda,
ProgressCode::UnloadingToPulley,
ProgressCode::FeedingToFinda,
ProgressCode::FeedingToBondtech,
ProgressCode::AvoidingGrind,
ProgressCode::FinishingMoves,
ProgressCode::ERRDisengagingIdler,
ProgressCode::ERREngagingIdler,
ProgressCode::ERRWaitingForUser,
ProgressCode::ERRInternal,
ProgressCode::ERRHelpingFilament,
ProgressCode::ERRTMCFailed,
ProgressCode::UnloadingFilament,
ProgressCode::LoadingFilament,
ProgressCode::SelectingFilamentSlot,
ProgressCode::PreparingBlade,
ProgressCode::PushingFilament,
ProgressCode::PerformingCut,
ProgressCode::ReturningSelector,
ProgressCode::ParkingSelector,
ProgressCode::EjectingFilament);
auto error = GENERATE(
ErrorCode::RUNNING,
ErrorCode::OK,
ErrorCode::FINDA_DIDNT_SWITCH_ON,
ErrorCode::FINDA_DIDNT_SWITCH_OFF,
ErrorCode::FSENSOR_DIDNT_SWITCH_ON,
ErrorCode::FSENSOR_DIDNT_SWITCH_OFF,
ErrorCode::FILAMENT_ALREADY_LOADED,
ErrorCode::MMU_NOT_RESPONDING,
ErrorCode::INTERNAL,
ErrorCode::TMC_PULLEY_BIT,
ErrorCode::TMC_SELECTOR_BIT,
ErrorCode::TMC_IDLER_BIT,
ErrorCode::TMC_IOIN_MISMATCH,
ErrorCode::TMC_RESET,
ErrorCode::TMC_UNDERVOLTAGE_ON_CHARGE_PUMP,
ErrorCode::TMC_SHORT_TO_GROUND,
ErrorCode::TMC_OVER_TEMPERATURE_WARN,
ErrorCode::TMC_OVER_TEMPERATURE_ERROR);
TXBuff txbuff;
uint16_t encodedParamValue = responseStatus == mp::ResponseMsgParamCodes::Error ? (uint16_t)error : (uint16_t)value;
mp::ResponseMsg rsp(requestMsg, mp::ResponseMsgParamCodes(responseStatus), encodedParamValue);
uint8_t msglen = mp::Protocol::EncodeResponseQueryOperation(requestMsg, mp::ResponseCommandStatus(responseStatus, encodedParamValue), txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxResponseSize());
CHECK(msglen <= txbuff.size());
CHECK(txbuff[0] == (uint8_t)requestMsg.code);
CHECK(txbuff[1] == requestMsg.value + '0');
CHECK(txbuff[2] == ' ');
CHECK(txbuff[3] == (uint8_t)responseStatus);
char chk[6];
int chars = snprintf(chk, 6, "%x", encodedParamValue);
REQUIRE(chars < 6);
std::string chks(chk, chk + chars);
chks.append(MakeCRC(rsp.ComputeCRC8()));
std::string txs((const char *)(&txbuff[4]), (const char *)(&txbuff[msglen]));
REQUIRE(chks == txs);
CHECK(txbuff[msglen - 1] == '\n');
}
TEST_CASE("protocol::DecodeRequest", "[protocol]") {
mp::Protocol p;
std::string rxbuff = GENERATE(
"B0", "B1", "B2",
"E0", "E1", "E2", "E3", "E4",
"H0", "H1", "H2",
"F0", "F1",
"f0", "f1",
"K0",
"L0", "L1", "L2", "L3", "L4",
"M0", "M1",
"P0",
"Q0",
"S0", "S1", "S2", "S3",
"T0", "T1", "T2", "T3", "T4",
"U0",
"X0");
rxbuff.append(MakeCRC(rxbuff.c_str()));
const char *pc = rxbuff.c_str();
for (;;) {
uint8_t c = *pc++;
if (c == 0) {
// end of input test data
break;
} else if (c == '\n') {
// regular end of message line
CHECK(p.DecodeRequest(c) == mp::DecodeStatus::MessageCompleted);
} else {
CHECK(p.DecodeRequest(c) == mp::DecodeStatus::NeedMoreData);
}
}
// check the message type
const mp::RequestMsg &rq = p.GetRequestMsg();
CHECK((uint8_t)rq.code == rxbuff[0]);
CHECK(rq.value == rxbuff[1] - '0');
// CRC is checked implicitly - the protocol would not return MessageCompleted if CRC mismatched
}
TEST_CASE("protocol::DecodeResponseReadFinda", "[protocol]") {
mp::Protocol p;
std::string rxbuff = GENERATE(
"P0 A0",
"P0 A1");
rxbuff.append(MakeCRC(rxbuff.c_str()));
const char *pc = rxbuff.c_str();
for (;;) {
uint8_t c = *pc++;
if (c == 0) {
// end of input test data
break;
} else if (c == '\n') {
// regular end of message line
CHECK(p.DecodeResponse(c) == mp::DecodeStatus::MessageCompleted);
} else {
CHECK(p.DecodeResponse(c) == mp::DecodeStatus::NeedMoreData);
}
}
// check the message type
const mp::ResponseMsg &rsp = p.GetResponseMsg();
CHECK((uint8_t)rsp.request.code == rxbuff[0]);
CHECK(rsp.request.value == rxbuff[1] - '0');
CHECK((uint8_t)rsp.paramCode == rxbuff[3]);
CHECK((uint8_t)rsp.paramValue == rxbuff[4] - '0');
// CRC is checked implicitly - the protocol would not return MessageCompleted if CRC mismatched
}
TEST_CASE("protocol::DecodeResponseQueryOperation", "[protocol][.]") {
mp::Protocol p;
const char *cmdReference = GENERATE(
"E0", "E1", "E2", "E3", "E4",
"H0", "H1", "H2",
"K0", "K1", "K2", "K3", "K4",
"L0", "L1", "L2", "L3", "L4",
"T0", "T1", "T2", "T3", "T4",
"U0");
const char *status = GENERATE(
"P0", "P1", "E0", "E1", "E9", "F", "B0", "B1", "B2");
std::string rxbuff(cmdReference);
rxbuff += ' ';
rxbuff += status;
rxbuff.append(MakeCRC(rxbuff.c_str()));
const char *pc = rxbuff.c_str();
for (;;) {
uint8_t c = *pc++;
if (c == 0) {
// end of input test data
break;
} else if (c == '\n') {
// regular end of message line
CHECK(p.DecodeResponse(c) == mp::DecodeStatus::MessageCompleted);
} else {
CHECK(p.DecodeResponse(c) == mp::DecodeStatus::NeedMoreData);
}
}
// check the message type
const mp::ResponseMsg &rsp = p.GetResponseMsg();
CHECK((uint8_t)rsp.request.code == rxbuff[0]);
CHECK(rsp.request.value == rxbuff[1] - '0');
CHECK((uint8_t)rsp.paramCode == rxbuff[3]);
CHECK((uint8_t)rsp.paramValue == rxbuff[4] - '0');
}
TEST_CASE("protocol::DecodeRequestErrors", "[protocol]") {
mp::Protocol p;
const char b0[] = "b0";
CHECK(p.DecodeRequest(b0[0]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b0[1]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
// reset protokol decoder
CHECK(p.DecodeRequest('\n') == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
const char B1_[] = "B1 \n";
CHECK(p.DecodeRequest(B1_[0]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(B1_[1]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(B1_[2]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(B1_[3]) == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
const char _B2[] = " B2\n";
CHECK(p.DecodeRequest(_B2[0]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B2[1]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B2[2]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B2[3]) == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
const char _B0_[] = " B0 ";
CHECK(p.DecodeRequest(_B0_[0]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B0_[1]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B0_[2]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(_B0_[3]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest('\n') == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
const char _B0_bad_crc[] = "B0*aa\n";
CHECK(p.DecodeRequest(_B0_bad_crc[0]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::Button);
CHECK(p.DecodeRequest(_B0_bad_crc[1]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(_B0_bad_crc[2]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(_B0_bad_crc[3]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(_B0_bad_crc[4]) == mp::DecodeStatus::NeedMoreData);
CHECK(p.DecodeRequest(_B0_bad_crc[5]) == mp::DecodeStatus::Error); // bad crc
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
}
TEST_CASE("protocol::DecodeResponseErrors", "[protocol]") {
mp::Protocol p;
const char b0[] = "b0 A\n";
CHECK(p.DecodeRequest(b0[0]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b0[1]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b0[2]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b0[3]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b0[4]) == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
const char b1[] = "b0A\n";
CHECK(p.DecodeRequest(b1[0]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b1[1]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b1[2]) == mp::DecodeStatus::Error);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
CHECK(p.DecodeRequest(b1[3]) == mp::DecodeStatus::MessageCompleted);
CHECK(p.GetRequestMsg().code == mp::RequestMsgCodes::unknown);
}
TEST_CASE("protocol::WriteRequest", "[protocol]") {
// write requests need special handling
TXBuff txbuff;
mp::Protocol p;
for (uint8_t address = 0; address < 255; ++address) {
for (uint32_t value2 = 2; value2 < 0x10000; ++value2) {
uint8_t msglen = mp::Protocol::EncodeWriteRequest(address, (uint16_t)value2, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxRequestSize());
p.ResetRequestDecoder();
for (uint8_t i = 0; i < msglen; ++i) {
p.DecodeRequest(txbuff[i]);
}
REQUIRE(p.requestMsg.code == mp::RequestMsgCodes::Write);
REQUIRE(p.requestMsg.value == address);
REQUIRE(p.requestMsg.value2 == (uint16_t)value2);
}
}
}
TEST_CASE("protocol::ReadRequest", "[protocol]") {
TXBuff txbuff;
mp::Protocol p;
for (uint16_t address = 0; address <= 255; ++address) {
mp::RequestMsg msg(mp::RequestMsgCodes::Read, (uint8_t)address);
uint8_t msglen = mp::Protocol::EncodeRequest(msg, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxRequestSize());
p.ResetRequestDecoder();
for (uint8_t i = 0; i < msglen; ++i) {
p.DecodeRequest(txbuff[i]);
}
REQUIRE(p.requestMsg.code == mp::RequestMsgCodes::Read);
REQUIRE(p.requestMsg.value == (uint8_t)address);
}
}
TEST_CASE("protocol::ReadResponse", "[protocol]") {
TXBuff txbuff;
mp::Protocol p;
for (uint8_t address = 0; address < 255; ++address) {
for (uint32_t value2 = 2; value2 < 0x10000; ++value2) {
for (uint8_t ar = 0; ar <= 1; ++ar) {
mp::RequestMsg msg(mp::RequestMsgCodes::Read, address);
uint8_t msglen = mp::Protocol::EncodeResponseRead(msg, ar != 0, value2, txbuff.data());
REQUIRE(msglen < mp::Protocol::MaxResponseSize());
p.ResetResponseDecoder();
for (uint8_t i = 0; i < msglen; ++i) {
p.DecodeResponse(txbuff[i]);
}
REQUIRE(p.responseMsg.request.code == mp::RequestMsgCodes::Read);
REQUIRE(p.responseMsg.request.value == address);
if (ar) {
REQUIRE(p.responseMsg.paramCode == mp::ResponseMsgParamCodes::Accepted);
REQUIRE(p.responseMsg.paramValue == value2);
} else {
REQUIRE(p.responseMsg.paramCode == mp::ResponseMsgParamCodes::Rejected);
REQUIRE(p.responseMsg.paramValue == 0);
}
}
}
}
}
// Beware - this test makes 18M+ combinations, run only when changing the implementation of the codec
// Therefore it is disabled [.] by default
TEST_CASE("protocol::DecodeResponseErrorsCross", "[protocol][.]") {
mp::Protocol p;
const char *validInitialSpaces = "";
const char *invalidInitialSpaces = GENERATE(" ", " ");
bool viInitialSpace = GENERATE(true, false);
const char *validReqCode = GENERATE("B", "E", "H", "F", "f", "K", "L", "M", "P", "Q", "S", "T", "U", "X");
const char *invalidReqCode = GENERATE("A", "R");
bool viReqCode = GENERATE(true, false);
const char *validReqValue = GENERATE("0", "1", "2", "3", "4");
// these are silently accepted
// const char *invalidReqValue = GENERATE(/*"5", */"10", "100");
// bool viReqValue = GENERATE(true, false);
const char *validSpace = " ";
const char *invalidSpace = GENERATE("", " ");
bool viSpace = GENERATE(true, false);
const char *validRspCode = GENERATE("A", "R", "P", "E", "F");
const char *invalidRspCode = GENERATE("B", "K", "L", "M", "Q");
bool viRspCode = GENERATE(true, false);
const char *validRspValue = GENERATE("0", "1", "2", "3", "10", "11", "100", "255");
const char *validTerminatingSpaces = "";
const char *invalidTerminatingSpaces = GENERATE(" ", " ");
bool viTerminatingSpaces = GENERATE(true, false);
// skip valid combinations
std::string msg;
msg += viInitialSpace ? validInitialSpaces : invalidInitialSpaces;
msg += viReqCode ? validReqCode : invalidReqCode;
msg += validReqValue; //viReqValue ? validReqValue : invalidReqValue;
msg += viSpace ? validSpace : invalidSpace;
const char *rspCode = viRspCode ? validRspCode : invalidRspCode;
msg += rspCode;
if (rspCode[0] == 'F') {
// this one doesn't have any value behind
} else {
msg += validRspValue;
}
msg += viTerminatingSpaces ? validTerminatingSpaces : invalidTerminatingSpaces;
msg += '\n';
bool shouldPass = viInitialSpace && viReqCode && /*viReqValue && */ viSpace && viRspCode && viTerminatingSpaces;
bool failed = false;
std::for_each(msg.cbegin(), msg.cend(), [&](uint8_t c) {
if (p.DecodeResponse(c) == mp::DecodeStatus::Error) {
failed = true;
}
});
CHECK(failed != shouldPass); // it must have failed!
if (failed) {
CHECK(p.GetResponseMsg().paramCode == mp::ResponseMsgParamCodes::unknown);
}
}
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