96 lines
3.9 KiB
C#
96 lines
3.9 KiB
C#
using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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using ZB.MOM.WW.OtOpcUa.Driver.AbCip;
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namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests;
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/// <summary>
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/// PR abcip-4.3 — end-to-end coverage that the synthetic <c>_System</c> folder + its five
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/// diagnostic variables ride a real ab_server lifecycle. Skipped when the binary isn't
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/// on PATH (<see cref="AbServerFactAttribute"/>).
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/// </summary>
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[Trait("Category", "Integration")]
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[Trait("Requires", "AbServer")]
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public sealed class AbCipSystemTagDiscoveryTests
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{
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[AbServerFact]
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public async Task System_folder_browses_and_each_variable_reads_non_empty()
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{
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var profile = KnownProfiles.ControlLogix;
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var fixture = new AbServerFixture(profile);
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await fixture.InitializeAsync();
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try
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{
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var deviceUri = $"ab://127.0.0.1:{fixture.Port}/1,0";
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var drv = new AbCipDriver(new AbCipDriverOptions
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{
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Devices = [new AbCipDeviceOptions(deviceUri, profile.Family)],
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Tags = [new AbCipTagDefinition("Counter", deviceUri, "TestDINT", AbCipDataType.DInt)],
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Timeout = TimeSpan.FromSeconds(5),
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}, "drv-system-tags");
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await drv.InitializeAsync("{}", CancellationToken.None);
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// Discovery — five system variables exposed under _System/ for the device.
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var builder = new RecordingBuilder();
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await drv.DiscoverAsync(builder, CancellationToken.None);
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builder.Folders.ShouldContain(f => f.BrowseName == "_System");
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var systemVars = builder.Variables
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.Where(v => v.Info.FullName.StartsWith("_System/"))
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.Select(v => v.BrowseName)
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.ToList();
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systemVars.ShouldContain("_ConnectionStatus");
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systemVars.ShouldContain("_ScanRate");
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systemVars.ShouldContain("_TagCount");
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systemVars.ShouldContain("_DeviceError");
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systemVars.ShouldContain("_LastScanTimeMs");
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// Read — each system variable returns Good with a non-null value, with no
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// libplctag round-trip required.
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var refs = systemVars
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.Select(name => $"_System/{deviceUri}/{name}")
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.ToList();
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var snaps = await drv.ReadAsync(refs, CancellationToken.None);
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for (var i = 0; i < snaps.Count; i++)
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{
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snaps[i].StatusCode.ShouldBe(AbCipStatusMapper.Good,
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$"system variable {refs[i]} should read Good");
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snaps[i].Value.ShouldNotBeNull(
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$"system variable {refs[i]} should not be null");
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}
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await drv.ShutdownAsync(CancellationToken.None);
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}
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finally
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{
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await fixture.DisposeAsync();
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}
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}
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private sealed class RecordingBuilder : IAddressSpaceBuilder
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{
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public List<(string BrowseName, string DisplayName)> Folders { get; } = new();
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public List<(string BrowseName, DriverAttributeInfo Info)> Variables { get; } = new();
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public IAddressSpaceBuilder Folder(string browseName, string displayName)
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{ Folders.Add((browseName, displayName)); return this; }
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public IVariableHandle Variable(string browseName, string displayName, DriverAttributeInfo info)
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{ Variables.Add((browseName, info)); return new Handle(info.FullName); }
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public void AddProperty(string _, DriverDataType __, object? ___) { }
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private sealed class Handle(string fullRef) : IVariableHandle
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{
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public string FullReference => fullRef;
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public IAlarmConditionSink MarkAsAlarmCondition(AlarmConditionInfo info) => new NullSink();
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}
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private sealed class NullSink : IAlarmConditionSink
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{
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public void OnTransition(AlarmEventArgs args) { }
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}
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}
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}
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