Files
lmxopcua/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverHostActorStaleDropTests.cs
T
Joseph Doherty 79d6b0a4b2 fix(runtime): lifecycle housekeeping — reprovision stamp, Stale drops, off-thread DB probe, tombstone sweep (A4)
- DriverHostActor.StopChild removes the driver's _lastReprovisionUtc stamp
  (and its deferred-reprovision timer): the map grew per removed id and a
  re-added driver inherited a backoff it never earned (02/L2).
- Stale now registers explicit drops for AttributeValueBatchPublished,
  AttributeAlarmPublished, ArtifactForApply and ApplyWedged instead of
  letting them hit Unhandled (02/H5).
- DbHealthProbeActor runs its SELECT on the thread pool and pipes the
  outcome back (single-flight), with a 2 s command timeout on relational
  providers, so a hung SQL Server no longer pins the actor thread and the
  cached GetStatus answer stays reachable (02/P7).
- TelemetryLocalHub eviction tombstones are timestamped and swept past a
  10 min TTL on the next Evict; a TimeProvider ctor is the test seam (02/L4).
- Tests: ValuePublishes.Single helper replaces the per-value
  AttributeValuePublished in CalculationDependencyFlowTests (02/U4, test
  half; the production receive is owned by Lane E).
- R05/8 audit: PollGroupEngine.Unsubscribe has no production caller; every
  driver already uses UnsubscribeAsync (no change).

Refs #731

Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
2026-10-22 06:36:12 -04:00

67 lines
3.2 KiB
C#

using Akka.Actor;
using Akka.Event;
using Microsoft.EntityFrameworkCore;
using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
using ZB.MOM.WW.OtOpcUa.Commons.Types;
using ZB.MOM.WW.OtOpcUa.Configuration;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using ZB.MOM.WW.OtOpcUa.Runtime.Drivers;
using ZB.MOM.WW.OtOpcUa.Runtime.Tests.Harness;
namespace ZB.MOM.WW.OtOpcUa.Runtime.Tests.Drivers;
/// <summary>
/// Review 02 H5: the <c>Stale</c> behaviour registered no receive for a driver child's value/alarm bursts (nor
/// for a late <c>ArtifactForApply</c> / <c>ApplyWedged</c> pipe-back), so any that landed there hit
/// <c>Unhandled</c> — dead-letter noise and a dropped message with no log naming why. They are now explicit
/// drops. The two private pipe-back records cannot be constructed from a test; the two public child
/// messages are pinned here, and the private pair by the same registration pattern (compile-time).
/// </summary>
public sealed class DriverHostActorStaleDropTests : RuntimeActorTestBase
{
private static readonly NodeId TestNode = NodeId.Parse("stale-drop-test");
[Fact]
public void Child_value_and_alarm_bursts_landing_in_Stale_are_dropped_not_unhandled()
{
var unhandled = CreateTestProbe();
Sys.EventStream.Subscribe(unhandled.Ref, typeof(UnhandledMessage));
// ThrowingDbFactory ⇒ Bootstrap's catch ⇒ Become(Stale).
var host = Sys.ActorOf(DriverHostActor.Props(
new ThrowingDbFactory(), TestNode, CreateTestProbe().Ref,
localRoles: new HashSet<string> { "driver" }));
// Barrier: Stale answers RouteNodeWrite synchronously, so a reply proves the host is in Stale.
var asker = CreateTestProbe();
host.Tell(new DriverHostActor.RouteNodeWrite("eq-x/speed", 0.0, AddressSpaceRealm.Uns), asker.Ref);
asker.ExpectMsg<DriverHostActor.NodeWriteResult>(PresenceBudget).Reason!.ShouldContain("stale");
// Positive control: an unknown message IS reported as unhandled by this host.
host.Tell("not a message the host knows");
unhandled.ExpectMsg<UnhandledMessage>(m => ReferenceEquals(m.Recipient, host) || m.Recipient.Equals(host), PresenceBudget);
host.Tell(new DriverInstanceActor.AttributeValueBatchPublished(
"DI-1", new[] { new DriverInstanceActor.AttributeValueItem("Plant/x/y", 1.0, OpcUaStatus.Good, DateTime.UtcNow) }));
host.Tell(new DriverInstanceActor.AttributeAlarmPublished(
"DI-1", new AlarmEventArgs(new Handle(), "Plant/x/alarm", "Plant/x/alarm", "AlarmCondition", "test",
AlarmSeverity.High, DateTime.UtcNow)));
// Barrier again, then the absence window.
host.Tell(new DriverHostActor.RouteNodeWrite("eq-x/speed", 0.0, AddressSpaceRealm.Uns), asker.Ref);
asker.ExpectMsg<DriverHostActor.NodeWriteResult>(PresenceBudget);
unhandled.ExpectNoMsg(TimeSpan.FromMilliseconds(500));
}
private sealed class Handle : IAlarmSubscriptionHandle
{
public string DiagnosticId => "stale-test";
}
private sealed class ThrowingDbFactory : IDbContextFactory<OtOpcUaConfigDbContext>
{
public OtOpcUaConfigDbContext CreateDbContext() => throw new InvalidOperationException("db unreachable");
}
}