9e1a180ce3
Move subscribe/unsubscribe I/O outside lock(Lock) in SyncAddressSpace to avoid blocking all OPC UA operations during rebuilds. Replace blocking ReadAsync calls for alarm priority/description in dispatch loop with cached subscription values. Extract IHistorianConnectionFactory so EnsureConnected can be tested without the SDK runtime — adds 5 connection lifecycle tests (failure, timeout, reconnect, state resilience, dispose-after-failure). All stability review findings and test coverage gaps are now fully resolved. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
50 lines
1.7 KiB
C#
50 lines
1.7 KiB
C#
using System;
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using ArchestrA;
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using ZB.MOM.WW.LmxOpcUa.Host.Configuration;
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using ZB.MOM.WW.LmxOpcUa.Host.Historian;
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namespace ZB.MOM.WW.LmxOpcUa.Tests.Helpers
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{
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/// <summary>
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/// Fake Historian connection factory for tests. Controls whether connections
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/// succeed, fail, or timeout without requiring the real Historian SDK runtime.
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/// </summary>
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internal sealed class FakeHistorianConnectionFactory : IHistorianConnectionFactory
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{
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/// <summary>
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/// When set, <see cref="CreateAndConnect"/> throws this exception.
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/// </summary>
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public Exception? ConnectException { get; set; }
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/// <summary>
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/// Number of times <see cref="CreateAndConnect"/> has been called.
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/// </summary>
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public int ConnectCallCount { get; private set; }
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/// <summary>
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/// When set, called on each <see cref="CreateAndConnect"/> to determine behavior.
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/// Receives the call count (1-based). Return null to succeed, or throw to fail.
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/// </summary>
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public Action<int>? OnConnect { get; set; }
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public HistorianAccess CreateAndConnect(HistorianConfiguration config, HistorianConnectionType type)
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{
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ConnectCallCount++;
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if (OnConnect != null)
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{
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OnConnect(ConnectCallCount);
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}
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else if (ConnectException != null)
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{
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throw ConnectException;
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}
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// Return a HistorianAccess that is not actually connected.
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// ReadRawAsync etc. will fail when they try to use it, which exercises
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// the HandleConnectionError → reconnect path.
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return new HistorianAccess();
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}
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}
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}
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