nuget reorganization

src/Signals/__Tests/StellaOps.Signals.Tests/RuntimeFactsIngestionServiceTests.cs

@@ -15,9 +15,13 @@ public class RuntimeFactsIngestionServiceTests
     {
         var factRepository = new InMemoryReachabilityFactRepository();
         var scoringService = new RecordingScoringService();
+        var cache = new InMemoryReachabilityCache();
+        var eventsPublisher = new RecordingEventsPublisher();
         var service = new RuntimeFactsIngestionService(
             factRepository,
             TimeProvider.System,
+            cache,
+            eventsPublisher,
             scoringService,
             NullLogger<RuntimeFactsIngestionService>.Instance);
 
@@ -75,6 +79,40 @@ public class RuntimeFactsIngestionServiceTests
         }
     }
 
+    private sealed class InMemoryReachabilityCache : IReachabilityCache
+    {
+        private readonly Dictionary<string, ReachabilityFactDocument> cache = new(StringComparer.Ordinal);
+
+        public Task<ReachabilityFactDocument?> GetAsync(string subjectKey, CancellationToken cancellationToken)
+        {
+            cache.TryGetValue(subjectKey, out var doc);
+            return Task.FromResult(doc);
+        }
+
+        public Task SetAsync(ReachabilityFactDocument document, CancellationToken cancellationToken)
+        {
+            cache[document.SubjectKey] = document;
+            return Task.CompletedTask;
+        }
+
+        public Task InvalidateAsync(string subjectKey, CancellationToken cancellationToken)
+        {
+            cache.Remove(subjectKey);
+            return Task.CompletedTask;
+        }
+    }
+
+    private sealed class RecordingEventsPublisher : IEventsPublisher
+    {
+        public ReachabilityFactDocument? Last { get; private set; }
+
+        public Task PublishFactUpdatedAsync(ReachabilityFactDocument fact, CancellationToken cancellationToken)
+        {
+            Last = fact;
+            return Task.CompletedTask;
+        }
+    }
+
     private sealed class RecordingScoringService : IReachabilityScoringService
     {
         public ReachabilityRecomputeRequest? LastRequest { get; private set; }