389f5a0378
Communication Layer (WP-1–5): - 8 message patterns with correlation IDs, per-pattern timeouts - Central/Site communication actors, transport heartbeat config - Connection failure handling (no central buffering, debug streams killed) Data Connection Layer (WP-6–14, WP-34): - Connection actor with Become/Stash lifecycle (Connecting/Connected/Reconnecting) - OPC UA + LmxProxy adapters behind IDataConnection - Auto-reconnect, bad quality propagation, transparent re-subscribe - Write-back, tag path resolution with retry, health reporting - Protocol extensibility via DataConnectionFactory Site Runtime (WP-15–25, WP-32–33): - ScriptActor/ScriptExecutionActor (triggers, concurrent execution, blocking I/O dispatcher) - AlarmActor/AlarmExecutionActor (ValueMatch/RangeViolation/RateOfChange, in-memory state) - SharedScriptLibrary (inline execution), ScriptRuntimeContext (API) - ScriptCompilationService (Roslyn, forbidden API enforcement, execution timeout) - Recursion limit (default 10), call direction enforcement - SiteStreamManager (per-subscriber bounded buffers, fire-and-forget) - Debug view backend (snapshot + stream), concurrency serialization - Local artifact storage (4 SQLite tables) Health Monitoring (WP-26–28): - SiteHealthCollector (thread-safe counters, connection state) - HealthReportSender (30s interval, monotonic sequence numbers) - CentralHealthAggregator (offline detection 60s, online recovery) Site Event Logging (WP-29–31): - SiteEventLogger (SQLite, 6 event categories, ISO 8601 UTC) - EventLogPurgeService (30-day retention, 1GB cap) - EventLogQueryService (filters, keyword search, keyset pagination) 541 tests pass, zero warnings.
106 lines
3.9 KiB
C#
106 lines
3.9 KiB
C#
using Akka.Actor;
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using Akka.TestKit.Xunit2;
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using ScadaLink.Commons.Messages.Communication;
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using ScadaLink.Commons.Messages.Deployment;
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using ScadaLink.Commons.Messages.DebugView;
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using ScadaLink.Commons.Messages.Health;
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using ScadaLink.Communication.Actors;
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namespace ScadaLink.Communication.Tests;
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/// <summary>
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/// WP-4: Tests for CentralCommunicationActor message routing.
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/// WP-5: Tests for connection failure and failover handling.
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/// </summary>
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public class CentralCommunicationActorTests : TestKit
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{
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public CentralCommunicationActorTests()
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: base(@"akka.loglevel = DEBUG")
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{
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}
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[Fact]
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public void RegisterSite_AllowsMessageRouting()
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{
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var centralActor = Sys.ActorOf(Props.Create(() => new CentralCommunicationActor()));
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// Register a site pointing to the test probe
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var probe = CreateTestProbe();
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centralActor.Tell(new RegisterSite("site1", probe.Ref.Path.ToString()));
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// Send a message to the site
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var command = new DeployInstanceCommand(
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"dep1", "inst1", "hash1", "{}", "admin", DateTimeOffset.UtcNow);
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centralActor.Tell(new SiteEnvelope("site1", command));
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// The probe should receive the inner message (not the envelope)
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probe.ExpectMsg<DeployInstanceCommand>(msg => msg.DeploymentId == "dep1");
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}
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[Fact]
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public void UnregisteredSite_MessageIsDropped()
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{
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var centralActor = Sys.ActorOf(Props.Create(() => new CentralCommunicationActor()));
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var command = new DeployInstanceCommand(
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"dep1", "inst1", "hash1", "{}", "admin", DateTimeOffset.UtcNow);
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centralActor.Tell(new SiteEnvelope("unknown-site", command));
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// No crash, no response — the ask will timeout on the caller side
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ExpectNoMsg(TimeSpan.FromMilliseconds(200));
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}
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[Fact]
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public void ConnectionLost_DebugStreamsKilled()
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{
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var centralActor = Sys.ActorOf(Props.Create(() => new CentralCommunicationActor()));
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var siteProbe = CreateTestProbe();
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// Register site
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centralActor.Tell(new RegisterSite("site1", siteProbe.Ref.Path.ToString()));
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// Subscribe to debug view (this tracks the subscription)
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var subscriberProbe = CreateTestProbe();
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var subRequest = new SubscribeDebugViewRequest("inst1", "corr-123");
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centralActor.Tell(new SiteEnvelope("site1", subRequest), subscriberProbe.Ref);
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// Simulate site disconnection
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centralActor.Tell(new ConnectionStateChanged("site1", false, DateTimeOffset.UtcNow));
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// The subscriber should receive a DebugStreamTerminated notification
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subscriberProbe.ExpectMsg<DebugStreamTerminated>(
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msg => msg.SiteId == "site1" && msg.CorrelationId == "corr-123");
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}
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[Fact]
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public void ConnectionLost_SiteSelectionRemoved()
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{
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var centralActor = Sys.ActorOf(Props.Create(() => new CentralCommunicationActor()));
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var siteProbe = CreateTestProbe();
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centralActor.Tell(new RegisterSite("site1", siteProbe.Ref.Path.ToString()));
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// Disconnect
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centralActor.Tell(new ConnectionStateChanged("site1", false, DateTimeOffset.UtcNow));
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// Sending a message to the disconnected site should be dropped
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centralActor.Tell(new SiteEnvelope("site1",
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new DeployInstanceCommand("dep2", "inst2", "hash2", "{}", "admin", DateTimeOffset.UtcNow)));
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siteProbe.ExpectNoMsg(TimeSpan.FromMilliseconds(200));
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}
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[Fact]
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public void Heartbeat_ForwardedToParent()
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{
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var parentProbe = CreateTestProbe();
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var centralActor = parentProbe.ChildActorOf(
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Props.Create(() => new CentralCommunicationActor()));
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var heartbeat = new HeartbeatMessage("site1", "host1", true, DateTimeOffset.UtcNow);
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centralActor.Tell(heartbeat);
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parentProbe.ExpectMsg<HeartbeatMessage>(msg => msg.SiteId == "site1");
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}
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}
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