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test(messages): DownloadPropertyData against a live capture packet

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Adds FromLiveCapture, which reads a whole captured game message packet
into a struct and requires the struct to write the same bytes back, and
checks DownloadPropertyData (716) with an unowned property packet from
the 2011/2012 live captures.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-28 23:40:13 -05:00
parent a52e777097
commit 7d28405559
2 changed files with 44 additions and 0 deletions
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18
tests/dGameTests/dGameMessagesTests/GameMessageTestUtils.h
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@@ -79,6 +79,24 @@ namespace GameMessageTestUtils {
return copy;
}
// Reads a whole game message packet copied from a live capture (hex), requires its header to carry T's message ID
// and the payload to be consumed up to the byte padding, and requires the struct to write the same bytes back.
template<typename T>
T FromLiveCapture(const std::string& hex) {
auto live = FromHex(hex);
RakNet::BitStream bitStream(live.bytes.data(), live.bytes.size(), false);
T msg;
LWOOBJID target{};
MessageType::Game msgId{};
EXPECT_TRUE(GameMessages::NetGameMsg::ReadPacketHeader(bitStream, target, msgId));
EXPECT_EQ(msgId, msg.msgId);
EXPECT_TRUE(msg.Deserialize(bitStream));
EXPECT_LT(bitStream.GetNumberOfUnreadBits(), 8u);
msg.target = target;
EXPECT_EQ(StructPacket(msg).bytes, live.bytes);
return msg;
}
// Checks that every strict prefix of msg's serialized payload fails to deserialize.
template<typename T>
void ExpectTruncatedFails(const T& msg) {