Add unit tests for RabbitMq and Udp transport servers and clients

- Implemented comprehensive unit tests for RabbitMqTransportServer, covering constructor, disposal, connection management, event handlers, and exception handling.
- Added configuration tests for RabbitMqTransportServer to validate SSL, durable queues, auto-recovery, and custom virtual host options.
- Created unit tests for UdpFrameProtocol, including frame parsing and serialization, header size validation, and round-trip data preservation.
- Developed tests for UdpTransportClient, focusing on connection handling, event subscriptions, and exception scenarios.
- Established tests for UdpTransportServer, ensuring proper start/stop behavior, connection state management, and event handling.
- Included tests for UdpTransportOptions to verify default values and modification capabilities.
- Enhanced service registration tests for Udp transport services in the dependency injection container.

src/Scanner/StellaOps.Scanner.WebService/Replay/RecordModeService.cs

@@ -7,6 +7,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using StellaOps.Cryptography;
 using StellaOps.Replay.Core;
 using StellaOps.Scanner.Core.Replay;
 using StellaOps.Scanner.Reachability;
@@ -25,29 +26,33 @@ internal sealed class RecordModeService : IRecordModeService
 {
     private readonly RecordModeAssembler _assembler;
     private readonly ReachabilityReplayWriter _reachability;
+    private readonly ICryptoHash _cryptoHash;
     private readonly IArtifactObjectStore? _objectStore;
     private readonly ScannerStorageOptions? _storageOptions;
     private readonly TimeProvider _timeProvider;
     private readonly ILogger<RecordModeService>? _logger;
 
     public RecordModeService(
+        ICryptoHash cryptoHash,
         IArtifactObjectStore objectStore,
         IOptions<ScannerStorageOptions> storageOptions,
         TimeProvider timeProvider,
         ILogger<RecordModeService> logger)
     {
+        _cryptoHash = cryptoHash ?? throw new ArgumentNullException(nameof(cryptoHash));
         _objectStore = objectStore ?? throw new ArgumentNullException(nameof(objectStore));
         _storageOptions = (storageOptions ?? throw new ArgumentNullException(nameof(storageOptions))).Value;
         _timeProvider = timeProvider ?? throw new ArgumentNullException(nameof(timeProvider));
         _logger = logger ?? throw new ArgumentNullException(nameof(logger));
-        _assembler = new RecordModeAssembler(timeProvider);
+        _assembler = new RecordModeAssembler(cryptoHash, timeProvider);
         _reachability = new ReachabilityReplayWriter();
     }
 
     // Legacy/testing constructor for unit tests that do not require storage.
-    public RecordModeService(TimeProvider? timeProvider = null)
+    public RecordModeService(ICryptoHash cryptoHash, TimeProvider? timeProvider = null)
     {
-        _assembler = new RecordModeAssembler(timeProvider);
+        _cryptoHash = cryptoHash ?? throw new ArgumentNullException(nameof(cryptoHash));
+        _assembler = new RecordModeAssembler(cryptoHash, timeProvider);
         _reachability = new ReachabilityReplayWriter();
         _timeProvider = timeProvider ?? TimeProvider.System;
     }
@@ -241,7 +246,7 @@ internal sealed class RecordModeService : IRecordModeService
         CancellationToken cancellationToken)
     {
         using var buffer = new MemoryStream();
-        var result = await ReplayBundleWriter.WriteTarZstAsync(entries, buffer, casPrefix: casPrefix, cancellationToken: cancellationToken).ConfigureAwait(false);
+        var result = await ReplayBundleWriter.WriteTarZstAsync(_cryptoHash, entries, buffer, casPrefix: casPrefix, cancellationToken: cancellationToken).ConfigureAwait(false);
 
         buffer.Position = 0;