74 lines
2.7 KiB
C#
74 lines
2.7 KiB
C#
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using SSPCTester.Devices.Config;
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using SSPCTester.Devices.Protocol;
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namespace SSPCTester.Tests;
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public sealed class ModbusProfileTests
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{
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[Fact]
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public void FieldProfile_IsValidAndCoversPhysicalSlots1To24()
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{
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string path = FindRepoFile("Docs", "Modbus接口规范", "device-profile.json");
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var profile = ModbusDeviceProfileLoader.Load(path);
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Assert.Equal(Enumerable.Range(1, 24), profile.Channels.OrderBy(x => x.PhysicalSlot).Select(x => x.PhysicalSlot));
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Assert.Equal((byte)1, profile.Channels.Single(x => x.PhysicalSlot == 1).Relay.Slave);
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Assert.Equal((ushort)7, profile.Channels.Single(x => x.PhysicalSlot == 1).Relay.Coil);
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Assert.Equal(12, profile.Channels.Single(x => x.PhysicalSlot == 24).Current.RegisterOffset);
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}
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[Fact]
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public void Crc16_UsesModbusLowByteFirst()
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{
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byte[] request = ModbusRtuProtocol.BuildRequest(4, 3, 0, 24);
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Assert.Equal(new byte[] { 0x04, 0x03, 0x00, 0x00, 0x00, 0x18 }, request[..6]);
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Assert.Equal((byte)(ModbusRtuProtocol.ComputeCrc(request.AsSpan(0, 6)) & 0xFF), request[6]);
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ModbusRtuProtocol.ValidateCrc(request);
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}
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[Fact]
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public void SignedCurrent_UsesInt16TwosComplementAndFormulaA()
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{
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ushort rawBits = unchecked((ushort)(short)-1000);
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double amps = ModbusValueConverter.ConvertRaw(rawBits, true, "A", 60.0);
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Assert.Equal(-6.0, amps, 6);
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}
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[Fact]
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public void InvalidDuplicateRegisterMapping_IsRejected()
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{
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var profile = ModbusDeviceProfileLoader.Load(ProfilePath());
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profile.Current.ChannelsForTestDuplicate(profile.Channels);
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var error = Assert.Throws<InvalidDataException>(() => ModbusDeviceProfileLoader.Validate(profile));
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Assert.Contains("current.registerOffset 存在重复", error.Message);
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}
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private static string ProfilePath() => FindRepoFile("Docs", "Modbus接口规范", "device-profile.json");
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private static string FindRepoFile(params string[] parts)
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{
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var directory = new DirectoryInfo(AppContext.BaseDirectory);
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while (directory != null)
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{
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string candidate = Path.Combine(new[] { directory.FullName }.Concat(parts).ToArray());
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if (File.Exists(candidate)) return candidate;
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directory = directory.Parent;
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}
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throw new FileNotFoundException($"找不到仓库文件：{Path.Combine(parts)}");
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}
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}
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internal static class ProfileTestExtensions
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{
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public static void ChannelsForTestDuplicate(
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this MeasurementProtocol _, IReadOnlyList<ChannelMapping> channels)
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{
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channels[1].Current.RegisterOffset = channels[0].Current.RegisterOffset;
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}
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}
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