add test

test/julia_to_julia_dict_sender.jl

@@ -0,0 +1,90 @@
+#!/usr/bin/env julia
+# Test script for dictionary transfer from Julia serviceA to Julia serviceB
+# Demonstrates the "Command & Control" scenario (small dictionary) using NATSBridge
+#
+# This is serviceA - the sender that sends a dummy dictionary to serviceB
+
+using NATSBridge
+using UUIDs
+using JSON
+
+# Include the NATSBridge module
+include("src/NATSBridge.jl")
+
+# Configuration
+const SUBJECT = "/NATSBridge_dict_test"
+const NATS_URL = "nats://localhost:4222"
+const FILESERVER_URL = "http://localhost:8080"
+
+# Create correlation ID for tracing
+correlation_id = string(uuid4())
+
+
+# ------------------------------------------------------------------------------------------------ #
+#                                        dictionary sender                                          #
+# ------------------------------------------------------------------------------------------------ #
+
+
+# Helper: Log with correlation ID
+function log_trace(message)
+    timestamp = Dates.now()
+    println("[$timestamp] [Correlation: $correlation_id] $message")
+end
+
+
+# Sender: Send a dummy dictionary to serviceB
+function send_dictionary()
+    # Create a dummy dictionary to send
+    dummy_dict = Dict(
+        "command" => "start_simulation",
+        "simulation_id" => string(uuid4()),
+        "duration_seconds" => 60,
+        "parameters" => Dict(
+            "temperature" => 25.5,
+            "pressure" => 101.3,
+            "active" => true,
+            "tags" => ["test", "simulation", "julia_to_julia"]
+        ),
+        "metadata" => Dict(
+            "sender" => "serviceA",
+            "timestamp" => Dates.now().iso8601
+        )
+    )
+
+    # Send the dictionary using smartsend with type="dictionary"
+    # API: smartsend(subject, [(dataname, data, type), ...]; keywords...)
+    env = NATSBridge.smartsend(
+        SUBJECT,
+        [("dummy_dict", dummy_dict, "dictionary")],  # List of (dataname, data, type) tuples
+        nats_url = NATS_URL,
+        fileserver_url = FILESERVER_URL,
+        size_threshold = 1_000_000,  # 1MB threshold - dictionary will use direct transport
+        correlation_id = correlation_id,
+        msg_purpose = "chat",
+        sender_name = "serviceA",
+        receiver_name = "serviceB",
+        reply_to = "",
+        reply_to_msg_id = ""
+    )
+
+    log_trace("Sent dictionary via $(env.payloads[1].transport) transport")
+    log_trace("Payload type: $(env.payloads[1].type)")
+    log_trace("Envelope correlationId: $(env.correlationId)")
+    
+    # Display the sent dictionary
+    println("\nSent dictionary content:")
+    println(JSON.json(dummy_dict, 2))
+end
+
+
+# Run the test
+println("Starting dictionary transfer test...")
+println("Correlation ID: $correlation_id")
+println("Subject: $SUBJECT")
+println("NATS URL: $NATS_URL")
+
+# Run sender
+println("\n--- Sending dictionary ---")
+send_dictionary()
+
+println("\nTest completed.")