46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
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#include "message_protocol/MessageHeader.hpp"
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#include <catch2/catch_test_macros.hpp>
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#include <array>
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using namespace tw::msg;
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TEST_CASE("Header survives a round trip", "[message_header]") {
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std::array<std::byte, MessageHeader::SIZE> buffer{};
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MessageHeader{ 42, 7 }.encode(buffer);
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auto decoded = MessageHeader::decode(buffer);
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REQUIRE(decoded.has_value());
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REQUIRE(decoded->type == 42);
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REQUIRE(decoded->seq == 7);
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}
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TEST_CASE("Header defaults to expecting no reply", "[message_header]") {
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std::array<std::byte, MessageHeader::SIZE> buffer{};
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MessageHeader{ 3 }.encode(buffer);
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auto decoded = MessageHeader::decode(buffer);
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REQUIRE(decoded.has_value());
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REQUIRE(decoded->seq == MessageHeader::SEQ_NONE);
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}
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TEST_CASE("Decoding a message shorter than a header fails", "[message_header]") {
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std::array<std::byte, MessageHeader::SIZE - 1> buffer{};
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REQUIRE_FALSE(MessageHeader::decode(buffer).has_value());
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}
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TEST_CASE("Encoding only writes the header", "[message_header]") {
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std::array<std::byte, MessageHeader::SIZE + 4> buffer{};
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buffer[MessageHeader::SIZE] = std::byte{ 0xAB };
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MessageHeader{ 1, 2 }.encode(buffer);
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REQUIRE(buffer[MessageHeader::SIZE] == std::byte{ 0xAB });
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}
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