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
31 lines
1.2 KiB
C#
31 lines
1.2 KiB
C#
using Moq;
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using Opc.Ua.Client;
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using Shouldly;
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using Xunit;
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namespace ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.Tests;
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/// <summary>
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/// #630 (same pattern) — <c>InitializeAsync</c> on a live driver (no <c>ShutdownAsync</c> first) used to
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/// overwrite <c>Session</c> and orphan the previous session + its keep-alive handler.
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/// </summary>
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[Trait("Category", "Unit")]
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public sealed class OpcUaClientReinitializeReleasesSessionTests
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{
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/// <summary>A second Initialize disposes the live session before attempting to build a new one.</summary>
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[Fact]
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public async Task Initialize_OnLiveDriver_DisposesThePreviousSession()
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{
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var options = new OpcUaClientDriverOptions { EndpointUrl = "opc.tcp://127.0.0.1:1" };
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using var drv = new OpcUaClientDriver(options, "opcua-reinit");
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var old = new Mock<ISession>();
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drv.SetSessionForTest(old.Object);
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// The new connect is refused (nothing listens on port 1) — what matters is what happened to the old one.
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await Should.ThrowAsync<Exception>(() => drv.InitializeAsync("{}", TestContext.Current.CancellationToken));
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old.Verify(s => s.Dispose(), Times.AtLeastOnce);
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drv.Session.ShouldBeNull();
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}
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}
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