should not be problematic but somehow is..

src/fsfw/cfdp/handler/SourceHandler.cpp

@@ -8,6 +8,7 @@
 #include "fsfw/cfdp/pdu/FileDataCreator.h"
 #include "fsfw/cfdp/pdu/MetadataPduCreator.h"
 #include "fsfw/filesystem/HasFileSystemIF.h"
+#include "fsfw/globalfunctions/arrayprinter.h"
 #include "fsfw/objectmanager.h"
 #include "fsfw/serviceinterface.h"
 #include "fsfw/tmtcservices/TmTcMessage.h"
@@ -294,6 +295,7 @@ ReturnValue_t cfdp::SourceHandler::sendGenericPdu(const SerializeIF& pdu) const
   if (result != OK) {
     return result;
   }
+  arrayprinter::print(dataPtr, serializedLen);
   TmTcMessage tmMsg(storeId);
   return fsfwParams.msgQueue->sendMessage(fsfwParams.packetDest.getReportReceptionQueue(), &tmMsg);
 }

unittests/cfdp/handler/testSourceHandler.cpp

@@ -9,7 +9,9 @@
 #include "fsfw/cfdp/pdu/FileDataCreator.h"
 #include "fsfw/cfdp/pdu/MetadataPduCreator.h"
 #include "fsfw/cfdp/pdu/MetadataPduReader.h"
+#include "fsfw/globalfunctions/arrayprinter.h"
 #include "fsfw/storagemanager/StorageManagerIF.h"
+#include "fsfw/tmtcservices/TmTcMessage.h"
 #include "fsfw/util/SeqCountProvider.h"
 #include "mocks/AcceptsTmMock.h"
 #include "mocks/EventReportingProxyMock.h"
@@ -66,15 +68,15 @@ TEST_CASE("CFDP Source Handler", "[cfdp]") {
     SourceHandler::FsmResult& fsmResult = sourceHandler.stateMachine();
     CHECK(fsmResult.packetsSent == 1);
     CHECK(mqMock.numberOfSentMessages() == 1);
-    CommandMessage msg;
+    TmTcMessage tmtcMessage;
-    REQUIRE(mqMock.getNextSentMessage(destQueueId, msg) == OK);
+    REQUIRE(mqMock.getNextSentMessage(destQueueId, tmtcMessage) == OK);
-    store_address_t storeId = CfdpMessage::getStoreId(&msg);
+    auto accessor = tmStore.getData(tmtcMessage.getStorageId());
-    auto accessor = tmStore.getData(storeId);
     REQUIRE(accessor.first == OK);
     const uint8_t* pduPtr = accessor.second.data();
     MetadataGenericInfo metadataInfo;
     MetadataPduReader metadataReader(pduPtr, accessor.second.size(), metadataInfo, nullptr, 0);
     size_t srcFileSize = 0;
+    arrayprinter::print(pduPtr, accessor.second.size());
     REQUIRE(metadataReader.parseData() == OK);
     const char* srcNameRead = metadataReader.getSourceFileName().getString(srcFileSize);
     REQUIRE(srcNameRead != nullptr);

unittests/cfdp/pdu/testMetadataPdu.cpp

@@ -36,15 +36,7 @@ TEST_CASE("Metadata PDU", "[cfdp][pdu]") {
   REQUIRE(options[0]->getSerializedSize() == 2 + 1 + 10 + 1);
   REQUIRE(options[1]->getSerializedSize() == 5);
 
-  SECTION("Serialize") {
+  auto metadataCheckPartOne = [&]() {
-    MetadataPduCreator serializer(pduConf, info, sourceFileName, destFileName, nullptr, 0);
-    result = serializer.serialize(&buffer, &sz, mdBuffer.size(), SerializeIF::Endianness::NETWORK);
-    REQUIRE(result == returnvalue::OK);
-    REQUIRE(serializer.getWholePduSize() == 27);
-    REQUIRE(serializer.getSourceFileName().getSerializedSize() == 10);
-    REQUIRE(serializer.getDestFileName().getSerializedSize() == 1);
-    REQUIRE(info.getSerializedSize() == 5);
-    REQUIRE((mdBuffer[1] << 8 | mdBuffer[2]) == 17);
     REQUIRE(mdBuffer[10] == FileDirective::METADATA);
     // no closure requested and checksum type is modular => 0x00
     REQUIRE(mdBuffer[11] == 0x00);
@@ -63,9 +55,49 @@ TEST_CASE("Metadata PDU", "[cfdp][pdu]") {
     REQUIRE(mdBuffer[23] == 't');
     REQUIRE(mdBuffer[24] == 'x');
     REQUIRE(mdBuffer[25] == 't');
+  };
+  SECTION("Serialize with empty dest name") {
+    MetadataPduCreator serializer(pduConf, info, sourceFileName, destFileName, nullptr, 0);
+    result = serializer.serialize(&buffer, &sz, mdBuffer.size(), SerializeIF::Endianness::NETWORK);
+    REQUIRE(result == returnvalue::OK);
+    // 10 byte heater + 1 byte PDU directive field + 1 byte PDU content + FSS field (4) + source
+    // name field (10) + dest name field (1).
+    REQUIRE(serializer.getWholePduSize() == 27);
+    REQUIRE(serializer.getSourceFileName().getSerializedSize() == 10);
+    REQUIRE(serializer.getDestFileName().getSerializedSize() == 1);
+    REQUIRE(info.getSerializedSize() == 5);
+    REQUIRE((mdBuffer[1] << 8 | mdBuffer[2]) == 17);
+    REQUIRE(serializer.getSerializedSize() == serializer.getWholePduSize());
+    metadataCheckPartOne();
     REQUIRE(mdBuffer[26] == 0);
   }
 
+  SECTION("Serialize with dest name") {
+    std::string secondFileName = "hello2.txt";
+    cfdp::StringLv destFileName2(secondFileName);
+    MetadataPduCreator serializer(pduConf, info, sourceFileName, destFileName2, nullptr, 0);
+    result = serializer.serialize(&buffer, &sz, mdBuffer.size(), SerializeIF::Endianness::NETWORK);
+    REQUIRE(result == returnvalue::OK);
+    // 10 byte heater + 1 byte PDU directive field + 1 byte PDU content + FSS field (4) + source
+    // name field (10) + dest name field (11).
+    REQUIRE(serializer.getWholePduSize() == 37);
+    REQUIRE((mdBuffer[1] << 8 | mdBuffer[2]) == 27);
+    REQUIRE(serializer.getSerializedSize() == serializer.getWholePduSize());
+    metadataCheckPartOne();
+    // Size of destination name field
+    REQUIRE(mdBuffer[26] == 10);
+    REQUIRE(mdBuffer[27] == 'h');
+    REQUIRE(mdBuffer[28] == 'e');
+    REQUIRE(mdBuffer[29] == 'l');
+    REQUIRE(mdBuffer[30] == 'l');
+    REQUIRE(mdBuffer[31] == 'o');
+    REQUIRE(mdBuffer[32] == '2');
+    REQUIRE(mdBuffer[33] == '.');
+    REQUIRE(mdBuffer[34] == 't');
+    REQUIRE(mdBuffer[35] == 'x');
+    REQUIRE(mdBuffer[36] == 't');
+  }
+
   SECTION("Serialize with 2 options") {
     std::string otherFileName = "hello2.txt";
     cfdp::StringLv otherFileNameLv(otherFileName.data(), otherFileName.size());