Files
riojoy/tests/RioJoy.Core.Tests/Protocol/RioCommandTableTests.cs
T
CydandClaude Opus 4.8 b3cb764f4d Phase 2: serial + RIO protocol core (RioJoy.Core) with unit tests
Port the RIO wire protocol from legacy/riovjoy2.cpp into testable C#:

- Protocol/: command + length table, 7-bit checksum, packet builder, and a
  streaming receive-side framing state machine (PacketParser) that mirrors the
  legacy ReadCommBlock framing/resync (high-bit-mid-packet abort). Typed RIO->PC
  decodes: AnalogReport (14-bit sign-extend), VersionInfo, CheckStatus; lamp-state
  composition.
- Serial/: RioSerialLink drives an async receive loop with ACK/NAK reply policy
  (legacy force-accept vs. opt-in VerifyInboundChecksum), the analog poll timer,
  and the >5s reset-recovery watchdog. IRioTransport abstracts the COM port; the
  SerialPort-backed transport does 9600 8N1 + DTR reset pulse, and acquire/release
  is just create/dispose (foundation for native-game serial yield).
- tests/RioJoy.Core.Tests: 54 xUnit tests covering checksum, framing/resync,
  builder round-trips, analog sign-extension + sentinel rejection, lamp combos,
  and the read loop driven against an in-memory fake transport.

Hardware verification (version/check/analog against a cabinet) remains; it can't
be done off-device.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 13:04:03 -05:00

52 lines
1.5 KiB
C#

using RioJoy.Core.Protocol;
using Xunit;
namespace RioJoy.Core.Tests.Protocol;
public class RioCommandTableTests
{
[Theory]
[InlineData(RioCommand.CheckRequest, 0)]
[InlineData(RioCommand.VersionRequest, 0)]
[InlineData(RioCommand.AnalogRequest, 0)]
[InlineData(RioCommand.ResetRequest, 1)]
[InlineData(RioCommand.LampRequest, 2)]
[InlineData(RioCommand.CheckReply, 2)]
[InlineData(RioCommand.VersionReply, 2)]
[InlineData(RioCommand.AnalogReply, 10)]
[InlineData(RioCommand.ButtonPressed, 1)]
[InlineData(RioCommand.ButtonReleased, 1)]
[InlineData(RioCommand.KeyPressed, 2)]
[InlineData(RioCommand.KeyReleased, 2)]
[InlineData(RioCommand.TestModeChange, 1)]
public void PayloadLengths_MatchProtocol(RioCommand command, int expected)
{
Assert.Equal(expected, RioCommandTable.PayloadLength(command));
}
[Fact]
public void Bounds_AreInclusive()
{
Assert.Equal(0x80, RioCommandTable.Base);
Assert.Equal(0x8C, RioCommandTable.Max);
Assert.Equal(13, RioCommandTable.Count);
}
[Theory]
[InlineData(0x7F, false)]
[InlineData(0x80, true)]
[InlineData(0x8C, true)]
[InlineData(0x8D, false)]
[InlineData(0xFC, false)]
public void IsCommand_RespectsRange(byte b, bool expected)
{
Assert.Equal(expected, RioCommandTable.IsCommand(b));
}
[Fact]
public void PayloadLength_ThrowsForNonCommand()
{
Assert.Throws<ArgumentOutOfRangeException>(() => RioCommandTable.PayloadLength((byte)0x8D));
}
}