feat(redundancy): periodic HealthTick refreshes DB reachability via Ask/PipeTo

2026-06-15 13:15:26 -04:00
parent 5382eea9b5
commit 37b32a5623
2 changed files with 81 additions and 6 deletions
@@ -505,6 +505,30 @@ public sealed class OpcUaPublishActorTests : RuntimeActorTestBase
            duration: TimeSpan.FromMilliseconds(500));
    }

+    /// <summary>Verifies that the periodic <c>HealthTick</c> Asks the local <see cref="DbHealthProbeActor"/>
+    /// for status and pipes the reply back to itself — populating <c>_lastDbHealth</c> in production WITHOUT
+    /// any external pump (no direct <see cref="DbHealthProbeActor.DbHealthStatus"/> Tell). With a healthy DB
+    /// reply and a primary-leader snapshot, the calculator path therefore reaches 250.</summary>
+    [Fact]
+    public void HealthTick_asks_db_probe_and_publishes_calculator_byte()
+    {
+        var publisher = new RecordingPublisher();
+        var local = NodeId.Parse("primary-node");
+        var db = Sys.ActorOf(Akka.Actor.Props.Create(() => new StubDbHealth(
+            new DbHealthProbeActor.DbHealthStatus(true, DateTime.UtcNow, null))));
+        var actor = Sys.ActorOf(OpcUaPublishActor.PropsForTests(
+            serviceLevel: publisher, localNode: local, dbHealthProbe: db,
+            staleWindow: TimeSpan.FromSeconds(30), probeFreshnessWindow: TimeSpan.FromSeconds(30),
+            healthTickInterval: TimeSpan.FromMilliseconds(100)));
+        actor.Tell(new RedundancyStateChanged(new[]
+        {
+            new NodeRedundancyState(local, RedundancyRole.Primary,
+                IsClusterLeader: true, IsRoleLeaderForDriver: true, DateTime.UtcNow),
+        }, CorrelationId.NewId()));
+        // No direct DbHealthStatus Tell — the periodic HealthTick Ask must populate it → 250.
+        AwaitAssert(() => publisher.Levels.ShouldContain((byte)250), TimeSpan.FromSeconds(2));
+    }
+
    /// <summary>Stub DB-health probe actor that answers <see cref="DbHealthProbeActor.GetStatus"/>
    /// with a fixed status, so the calculator path is deterministic without a real timer.</summary>
    private sealed class StubDbHealth : Akka.Actor.ReceiveActor