Joseph Doherty
461133235a
FOCAS, AbLegacy, AbCip, TwinCAT, S7 and OpcUaClient orphaned the previous probe/recycle/fixed-tree loops and clients when re-initialised on a live driver. Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
59 lines
2.4 KiB
C#
59 lines
2.4 KiB
C#
using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.Driver.FOCAS;
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namespace ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests;
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/// <summary>
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/// #630 — <c>InitializeAsync</c> on a live driver (<c>DriverInstanceActor.AdoptConfigDuringInit</c> runs
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/// it with no teardown first) overwrote <c>_devices[host]</c> and orphaned the previous state's
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/// probe loop + client. It now releases them first.
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/// </summary>
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[Trait("Category", "Unit")]
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public sealed class FocasReinitializeReleasesStateTests
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{
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/// <summary>Initialize twice: the first state's probe loop has finished and its client is disposed.</summary>
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[Fact]
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public async Task SecondInitialize_StopsFirstStatesLoop_AndDisposesItsClient()
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{
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const string host = "focas://10.0.0.5:8193";
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var factory = new FakeFocasClientFactory();
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var options = new FocasDriverOptions
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{
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Devices = [new FocasDeviceOptions(host)],
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RawTags = [FocasRawTags.Entry(new FocasTagDefinition("R", host, "R100", FocasDataType.Byte))],
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Probe = new FocasProbeOptions { Enabled = true, Interval = TimeSpan.FromMilliseconds(20), Timeout = TimeSpan.FromSeconds(2) },
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};
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var drv = new FocasDriver(options, "focas-reinit", factory);
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await drv.InitializeAsync("{}", CancellationToken.None);
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var first = drv.GetDeviceState(host)!;
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// Positive control: the first state's probe loop is demonstrably running and holds a live client.
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await WaitUntilAsync(() => factory.Clients.Count > 0 && factory.Clients[0].IsConnected);
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var firstLoop = first.ProbeTask;
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firstLoop.ShouldNotBeNull();
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firstLoop!.IsCompleted.ShouldBeFalse();
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var firstClient = factory.Clients[0];
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await drv.InitializeAsync("{}", CancellationToken.None);
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firstLoop.IsCompleted.ShouldBeTrue(); // joined
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firstClient.DisposeCount.ShouldBeGreaterThanOrEqualTo(1);
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firstClient.IsConnected.ShouldBeFalse();
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drv.GetDeviceState(host).ShouldNotBeSameAs(first);
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drv.GetDeviceState(host)!.ProbeTask.ShouldNotBeNull(); // the new state is running
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await drv.ShutdownAsync(CancellationToken.None);
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}
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private static async Task WaitUntilAsync(Func<bool> cond)
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{
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var deadline = DateTime.UtcNow.AddSeconds(5);
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while (!cond())
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{
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if (DateTime.UtcNow > deadline) throw new TimeoutException("condition not met");
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await Task.Delay(10);
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}
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}
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}
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