finished basic TC unittests

src/fsfw/tmtcpacket/pus/tc/PusTcCreator.cpp

@@ -54,7 +54,7 @@ ReturnValue_t PusTcCreator::serialize(uint8_t **buffer, size_t *size, size_t max
     }
   }
 
-  uint16_t crc16 = CRC::crc16ccitt(start, getFullPacketLen() - 2);
+  uint16_t crc16 = CRC::crc16ccitt(start, getFullPacketLen() - sizeof(ecss::PusChecksumT));
   return SerializeAdapter::serialize(&crc16, buffer, size, maxSize, streamEndianness);
 }
 
@@ -95,3 +95,13 @@ SpacePacketParams &PusTcCreator::getSpParams() { return spCreator.getParams(); }
 ReturnValue_t PusTcCreator::serialize(uint8_t **buffer, size_t *size, size_t maxSize) {
   return serialize(buffer, size, maxSize, SerializeIF::Endianness::NETWORK);
 }
+
+void PusTcCreator::setRawAppData(ecss::DataWrapper::BufPairT bufPair) {
+  pusParams.dataWrapper.setRawData(bufPair);
+  updateSpLengthField();
+}
+
+void PusTcCreator::setSerializableAppData(SerializeIF *serAppData) {
+  pusParams.dataWrapper.setSerializable(serAppData);
+  updateSpLengthField();
+}

src/fsfw/tmtcpacket/pus/tc/PusTcCreator.h

@@ -33,6 +33,9 @@ class PusTcCreator : public PusTcIF, public SerializeIF, public CreatorDataIF {
   void updateSpLengthField();
   PusTcParams &getPusParams();
   SpacePacketParams &getSpParams();
+  void setRawAppData(ecss::DataWrapper::BufPairT bufPair);
+  void setSerializableAppData(SerializeIF *serAppData);
+
   ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize);
   [[nodiscard]] size_t getSerializedSize() const override;
   ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,

src/fsfw/tmtcpacket/pus/tc/PusTcReader.cpp

@@ -23,20 +23,18 @@ ReturnValue_t PusTcReader::parseData(bool withCrc) {
   if (result != HasReturnvaluesIF::RETURN_OK) {
     return result;
   }
-  // We already have access to the space packet fields here, so we can perform a sanity check
-  // on the length field
-  if (spReader.getFullPacketLen() < spReader.getBufSize()) {
-    return SerializeIF::STREAM_TOO_SHORT;
-  }
-
   size_t currentOffset = SpacePacketReader::getHeaderLen();
   pointers.secHeaderStart = pointers.spHeaderStart + currentOffset;
   // Might become variable sized field in the future
   // TODO: No support for spare bytes yet
   currentOffset += ecss::PusTcDataFieldHeader::MIN_SIZE;
-  pointers.userDataStart = pointers.spHeaderStart + currentOffset;
   appDataSize = spReader.getFullPacketLen() - currentOffset - sizeof(ecss::PusChecksumT);
-  pointers.crcStart = pointers.userDataStart + appDataSize;
+  pointers.userDataStart = nullptr;
+  if (appDataSize > 0) {
+    pointers.userDataStart = pointers.spHeaderStart + currentOffset;
+  }
+  currentOffset += appDataSize;
+  pointers.crcStart = pointers.spHeaderStart + currentOffset;
   if (withCrc) {
     uint16_t crc16 = CRC::crc16ccitt(spReader.getFullData(), getFullPacketLen());
     if (crc16 != 0) {
@@ -47,25 +45,28 @@ ReturnValue_t PusTcReader::parseData(bool withCrc) {
   return HasReturnvaluesIF::RETURN_OK;
 }
 
-uint8_t PusTcReader::getAcknowledgeFlags() const {
+uint8_t PusTcReader::getPusVersion() const { return (pointers.secHeaderStart[0] >> 4) & 0b1111; }
-  return (pointers.secHeaderStart[0] >> 4) & 0b1111;
+
-}
+uint8_t PusTcReader::getAcknowledgeFlags() const { return pointers.secHeaderStart[0] & 0b1111; }
 
 uint8_t PusTcReader::getService() const { return pointers.secHeaderStart[1]; }
 
 uint8_t PusTcReader::getSubService() const { return pointers.secHeaderStart[2]; }
+
 uint16_t PusTcReader::getSourceId() const {
   return (pointers.secHeaderStart[3] << 8) | pointers.secHeaderStart[4];
 }
 
 uint16_t PusTcReader::getErrorControl() const {
-  return pointers.crcStart[0] << 8 | pointers.crcStart[1];
+  return (pointers.crcStart[0] << 8) | pointers.crcStart[1];
 }
 
 uint16_t PusTcReader::getPacketIdRaw() const { return spReader.getPacketIdRaw(); }
+
 uint16_t PusTcReader::getPacketSeqCtrlRaw() const { return spReader.getPacketSeqCtrlRaw(); }
+
 uint16_t PusTcReader::getPacketDataLen() const { return spReader.getPacketDataLen(); }
-uint8_t PusTcReader::getPusVersion() const { return spReader.getVersion(); }
+
 const uint8_t* PusTcReader::getFullData() { return pointers.spHeaderStart; }
 
 ReturnValue_t PusTcReader::setData(uint8_t* pData, size_t size_, void* args) {
@@ -80,13 +81,4 @@ ReturnValue_t PusTcReader::setReadOnlyData(const uint8_t* data, size_t size_) {
 const uint8_t* PusTcReader::getUserData() const { return pointers.userDataStart; }
 size_t PusTcReader::getUserDataLen() const { return appDataSize; }
 
-/*
+bool PusTcReader::isNull() const { return spReader.isNull(); }
-void PusTcReader::print() {
-#if FSFW_CPP_OSTREAM_ENABLED == 1
-  sif::info << "TcPacketBase::print:" << std::endl;
-#else
-  sif::printInfo("TcPacketBase::print:\n");
-#endif
-  arrayprinter::print(getWholeData(), getFullSize());
-}
-*/

src/fsfw/tmtcpacket/pus/tc/PusTcReader.h

@@ -34,6 +34,7 @@ class PusTcReader : public PusTcIF,
    */
   PusTcReader(const uint8_t* setData, size_t size);
 
+  [[nodiscard]] bool isNull() const;
   ReturnValue_t parseDataWithCrcCheck();
   ReturnValue_t parseDataWithoutCrcCheck();
 
@@ -60,7 +61,7 @@ class PusTcReader : public PusTcIF,
 
   ReturnValue_t setReadOnlyData(const uint8_t* data, size_t size);
   [[nodiscard]] const uint8_t* getUserData() const override;
-  size_t getUserDataLen() const override;
+  [[nodiscard]] size_t getUserDataLen() const override;
 
  protected:
   /**

src/fsfw/tmtcpacket/pus/tm/PusTmCreator.cpp

@@ -74,7 +74,7 @@ ReturnValue_t PusTmCreator::serialize(uint8_t** buffer, size_t* size, size_t max
       return result;
     }
   }
-  uint16_t crc16 = CRC::crc16ccitt(*buffer, getFullPacketLen() - 2);
+  uint16_t crc16 = CRC::crc16ccitt(*buffer, getFullPacketLen() - sizeof(ecss::PusChecksumT));
   return SerializeAdapter::serialize(&crc16, buffer, size, maxSize, streamEndianness);
 }
 

src/fsfw/tmtcpacket/pus/tm/PusTmReader.cpp

@@ -57,10 +57,6 @@ ReturnValue_t PusTmReader::parseData(bool crcCheck) {
   if (result != HasReturnvaluesIF::RETURN_OK) {
     return result;
   }
-  if (spReader.getFullPacketLen() < spReader.getBufSize()) {
-    return SerializeIF::STREAM_TOO_SHORT;
-  }
-
   size_t currentOffset = SpacePacketReader::getHeaderLen();
   pointers.secHeaderStart = pointers.spHeaderStart + currentOffset;
   currentOffset += PusTmIF::MIN_SEC_HEADER_LEN;

unittests/tmtcpacket/CMakeLists.txt

@@ -2,4 +2,5 @@ target_sources(${FSFW_TEST_TGT} PRIVATE
   testCcsdsCreator.cpp
   testCcsdsReader.cpp
   testPusTcCreator.cpp
+  testPusTcReader.cpp
 )

unittests/tmtcpacket/testPusTcCreator.cpp

@@ -54,6 +54,8 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     REQUIRE(((buf[9] << 8) | buf[10]) == 0);
     // CRC16 check
     REQUIRE(CRC::crc16ccitt(buf.data(), serLen) == 0);
+    REQUIRE(buf[11] == 0xee);
+    REQUIRE(buf[12] == 0x63);
   }
 
   SECTION("Custom Source ID") {
@@ -82,12 +84,10 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
   SECTION("Test with Application Data Serializable") {
     auto& params = creator.getPusParams();
     auto simpleSer = SimpleSerializable();
-    params.dataWrapper.setSerializable(&simpleSer);
+    creator.setSerializableAppData(&simpleSer);
     auto& dataWrapper = creator.getDataWrapper();
     REQUIRE(dataWrapper.type == ecss::DataTypes::SERIALIZABLE);
     REQUIRE(dataWrapper.dataUnion.serializable == &simpleSer);
-    REQUIRE(creator.getSerializedSize() == 13);
-    creator.updateSpLengthField();
     REQUIRE(creator.getSerializedSize() == 16);
     REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 16);

unittests/tmtcpacket/testPusTcReader.cpp

@@ -0,0 +1,81 @@
+#include <array>
+#include <catch2/catch_test_macros.hpp>
+
+#include "fsfw/tmtcpacket/pus/tc/PusTcCreator.h"
+#include "fsfw/tmtcpacket/pus/tc/PusTcReader.h"
+
+TEST_CASE("PUS TC Reader", "[pus-tc-reader]") {
+  auto packetId = PacketId(ccsds::PacketType::TC, true, 0x02);
+  auto spParams =
+      SpacePacketParams(packetId, PacketSeqCtrl(ccsds::SequenceFlags::UNSEGMENTED, 0x34), 0x00);
+  auto pusParams = PusTcParams(17, 1);
+  PusTcCreator creator(spParams, pusParams);
+  std::array<uint8_t, 32> buf{};
+  uint8_t* dataPtr = buf.data();
+  size_t serLen = 0;
+  PusTcReader reader;
+  auto checkReaderFields = [&](PusTcReader& reader) {
+    REQUIRE(not reader.isNull());
+    REQUIRE(reader.getPacketType() == ccsds::PacketType::TC);
+    REQUIRE(reader.getApid() == 0x02);
+    REQUIRE(reader.getService() == 17);
+    REQUIRE(reader.getSubService() == 1);
+    REQUIRE(reader.getFullPacketLen() == 13);
+    REQUIRE(reader.getPacketDataLen() == 6);
+    REQUIRE(reader.getPusVersion() == 2);
+    REQUIRE(reader.getSequenceCount() == 0x34);
+    REQUIRE(reader.getUserData() == nullptr);
+    REQUIRE(reader.getUserDataLen() == 0);
+    REQUIRE(reader.getFullData() == buf.data());
+    REQUIRE(reader.getSourceId() == 0x00);
+    REQUIRE(reader.getAcknowledgeFlags() == 0b1111);
+    // This value was verified to be correct
+    REQUIRE(reader.getErrorControl() == 0xee63);
+  };
+
+  SECTION("State") {
+    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(reader.isNull());
+
+    SECTION("Setter") {
+      REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
+      REQUIRE(reader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_OK);
+      checkReaderFields(reader);
+    }
+    SECTION("Directly Constructed") {
+      PusTcReader secondReader(buf.data(), serLen);
+      REQUIRE(not secondReader.isNull());
+      REQUIRE(secondReader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_OK);
+      checkReaderFields(secondReader);
+    }
+  }
+
+  SECTION("Invalid CRC") {
+    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
+    buf[11] = 0x00;
+    REQUIRE(reader.parseDataWithCrcCheck() == PusIF::INVALID_CRC_16);
+  }
+
+  SECTION("Invalid CRC but no check") {
+    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
+    buf[11] = 0x00;
+    REQUIRE(reader.parseDataWithoutCrcCheck() == HasReturnvaluesIF::RETURN_OK);
+  }
+
+  SECTION("With application data") {
+    auto& params = creator.getPusParams();
+    std::array<uint8_t, 3> data{1, 2, 3};
+    creator.setRawAppData({data.data(), data.size()});
+    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(reader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_OK);
+    const uint8_t* userDataPtr = reader.getUserData();
+    REQUIRE(userDataPtr != nullptr);
+    REQUIRE(reader.getUserDataLen() == 3);
+    REQUIRE(userDataPtr[0] == 1);
+    REQUIRE(userDataPtr[1] == 2);
+    REQUIRE(userDataPtr[2] == 3);
+  }
+}

unittests/tmtcpacket/testPusTm.cpp

@@ -1 +0,0 @@
-