fsfw/unittests/cfdp/pdu/testFileDirective.cpp

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#include <array>
#include <catch2/catch_test_macros.hpp>
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#include "fsfw/cfdp/pdu/FileDirectiveCreator.h"
#include "fsfw/cfdp/pdu/FileDirectiveReader.h"
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TEST_CASE("CFDP File Directive", "[cfdp][pdu]") {
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using namespace cfdp;
std::array<uint8_t, 32> serBuf{};
ReturnValue_t result;
cfdp::TransactionSeqNum seqNum = TransactionSeqNum(cfdp::WidthInBytes::ONE_BYTE, 2);
cfdp::EntityId sourceId = EntityId(cfdp::WidthInBytes::ONE_BYTE, 0);
cfdp::EntityId destId = EntityId(cfdp::WidthInBytes::ONE_BYTE, 1);
PduConfig pduConf =
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PduConfig(sourceId, destId, cfdp::TransmissionMode::ACKNOWLEDGED, seqNum, false);
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uint8_t* serTarget = serBuf.data();
const uint8_t* deserTarget = serTarget;
size_t serSize = 0;
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auto fdSer = FileDirectiveCreator(pduConf, FileDirective::ACK, 4);
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SECTION("Serialization") {
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REQUIRE(fdSer.getSerializedSize() == 8);
serTarget = serBuf.data();
serSize = 0;
result = fdSer.serialize(&serTarget, &serSize, serBuf.size(), SerializeIF::Endianness::NETWORK);
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REQUIRE(result == returnvalue::OK);
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// Only version bits are set
REQUIRE(serBuf[0] == 0b00100000);
// PDU data field length is 5 (4 + Directive code octet)
REQUIRE(serBuf[1] == 0);
REQUIRE(serBuf[2] == 5);
// Entity and Transaction Sequence number are 1 byte large
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REQUIRE(serBuf[3] == 0b00000000);
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// Source ID
REQUIRE(serBuf[4] == 0);
// Transaction Seq Number
REQUIRE(serBuf[5] == 2);
// Dest ID
REQUIRE(serBuf[6] == 1);
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REQUIRE(serBuf[7] == FileDirective::ACK);
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}
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SECTION("Serialization fails") {
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REQUIRE(fdSer.serialize(nullptr, nullptr, 85, SerializeIF::Endianness::NETWORK) ==
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returnvalue::FAILED);
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}
SECTION("Buffer Too Short") {
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for (uint8_t idx = 0; idx < 8; idx++) {
serTarget = serBuf.data();
serSize = 0;
REQUIRE(fdSer.serialize(&serTarget, &serSize, idx, SerializeIF::Endianness::NETWORK) ==
SerializeIF::BUFFER_TOO_SHORT);
}
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}
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SECTION("Deserialize") {
CHECK(fdSer.serialize(&serTarget, &serSize, serBuf.size(), SerializeIF::Endianness::NETWORK) ==
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returnvalue::OK);
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serTarget = serBuf.data();
REQUIRE(fdSer.deSerialize(&deserTarget, &serSize, SerializeIF::Endianness::NETWORK) ==
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returnvalue::FAILED);
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deserTarget = serBuf.data();
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CHECK(serSize == 8);
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auto fdDeser = FileDirectiveReader(deserTarget, serBuf.size());
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REQUIRE(fdDeser.isNull());
REQUIRE(not fdDeser);
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REQUIRE(fdDeser.getEndianness() == SerializeIF::Endianness::NETWORK);
fdDeser.setEndianness(SerializeIF::Endianness::MACHINE);
REQUIRE(fdDeser.getEndianness() == SerializeIF::Endianness::MACHINE);
fdDeser.setEndianness(SerializeIF::Endianness::NETWORK);
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REQUIRE(fdDeser.parseData() == returnvalue::OK);
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REQUIRE(not fdDeser.isNull());
REQUIRE(fdDeser);
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REQUIRE(fdDeser.getFileDirective() == FileDirective::ACK);
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REQUIRE(fdDeser.getPduDataFieldLen() == 5);
REQUIRE(fdDeser.getHeaderSize() == 8);
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REQUIRE(fdDeser.getPduType() == cfdp::PduType::FILE_DIRECTIVE);
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serBuf[7] = 0xff;
// Invalid file directive
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REQUIRE(fdDeser.parseData() == cfdp::INVALID_DIRECTIVE_FIELD);
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}
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}