Improved error message in OutboxMessageProcessor<>

Author: Felix-CodingClimber

src/DotNetElements.AppFramework/Outbox/OutboxMessageProcessor.cs

@@ -2,18 +2,18 @@
 
 public interface IOutboxMessageProcessor
 {
-	Task<ResultWithError> ProcessAsync(object message, CancellationToken cancellation);
+    Task<ResultWithError> ProcessAsync(object message, CancellationToken cancellation);
 }
 
 public abstract class OutboxMessageProcessor<T> : IOutboxMessageProcessor
 {
-	public Task<ResultWithError> ProcessAsync(object message, CancellationToken cancellation)
-	{
-		if (message is not T tMessage)
-			throw new ArgumentException("Invalid message type");
+    public Task<ResultWithError> ProcessAsync(object message, CancellationToken cancellation)
+    {
+        if (message is not T typedMessage)
+            throw new ArgumentException($"Invalid message type: {message.GetType().Name}. Expected: {typeof(T).Name}.");
 
-		return ProcessAsync(tMessage, cancellation);
-	}
+        return ProcessAsync(typedMessage, cancellation);
+    }
 
-	protected abstract Task<ResultWithError> ProcessAsync(T message, CancellationToken cancellation);
+    protected abstract Task<ResultWithError> ProcessAsync(T message, CancellationToken cancellation);
 }