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test(capture): decoder coverage, replica read-back and generator check; docs

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Every LU MessageType has a struct or is listed as never used by this server; every game message struct reads;
samples of each family and of sent game messages read back; replica constructions, updates and destructions written
by the server's own serializers read back. Generator finds constructors defined in the .cpp.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-30 04:43:09 -05:00
parent d1ea2992e4
commit 4d7bea6f06
10 changed files with 482 additions and 8 deletions
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15
tests/dGameTests/dGameMessagesTests/GameMessageDecoderTests.cpp
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@@ -39,28 +39,31 @@ TEST(GameMessageDecoderTest, ReadsWhatTheServerWrites) {
EXPECT_EQ((*fields)["skillID"], 42);
EXPECT_EQ((*fields)["optionalOriginatorID"], "1234");
EXPECT_EQ((*fields)["optionalTargetID"], "77");
EXPECT_EQ((*fields)["sBitStream"], "0102");
EXPECT_EQ((*fields)["sBitStream"], nlohmann::json({ {"hex", "0102"} }));
}
TEST(GameMessageDecoderTest, DirectionMatters) {
// A message only sent one way is read with its struct in either direction (the layout is the same)
TEST(GameMessageDecoderTest, SentMessagesDecode) {
GameMessages::EchoSyncSkill sent;
sent.bDone = true;
sent.uiSkillHandle = 5;
RakNet::BitStream stream;
sent.Serialize(stream);
EXPECT_FALSE(GameMessageDecoder::CanDecode(MessageType::Game::ECHO_SYNC_SKILL, true));
EXPECT_TRUE(GameMessageDecoder::CanDecode(MessageType::Game::ECHO_SYNC_SKILL, false));
const auto fields = GameMessageDecoder::Decode(MessageType::Game::ECHO_SYNC_SKILL, false, stream);
ASSERT_TRUE(fields);
EXPECT_EQ((*fields)["bDone"], true);
EXPECT_EQ((*fields)["uiSkillHandle"], 5);
}
TEST(GameMessageDecoderTest, UntypedMessagesAreNotDecoded) {
// A message the server has no struct for (live only) isn't decoded
TEST(GameMessageDecoderTest, MessagesWithoutAStructAreNotDecoded) {
RakNet::BitStream payload;
payload.Write<uint32_t>(1);
EXPECT_FALSE(GameMessageDecoder::CanDecode(MessageType::Game::PLAY_EMOTE, true));
EXPECT_FALSE(GameMessageDecoder::Decode(MessageType::Game::PLAY_EMOTE, true, payload));
EXPECT_FALSE(GameMessageDecoder::HasStruct(MessageType::Game::SET_PVP_STATUS));
EXPECT_FALSE(GameMessageDecoder::CanDecode(MessageType::Game::SET_PVP_STATUS, true));
EXPECT_FALSE(GameMessageDecoder::Decode(MessageType::Game::SET_PVP_STATUS, true, payload));
}
TEST(GameMessageDecoderTest, ShortPayloadsFail) {