Test suite executed from CI pipeline (#433)

* Test strategy & test cases

* Unit tests

* Integration tests

tests/unit/test_gateway/test_dispatch_requestor.py

@@ -0,0 +1,118 @@
+"""
+Tests for Gateway Service Requestor
+"""
+
+import pytest
+from unittest.mock import MagicMock, AsyncMock, patch
+
+from trustgraph.gateway.dispatch.requestor import ServiceRequestor
+
+
+class TestServiceRequestor:
+    """Test cases for ServiceRequestor class"""
+
+    @patch('trustgraph.gateway.dispatch.requestor.Publisher')
+    @patch('trustgraph.gateway.dispatch.requestor.Subscriber')
+    def test_service_requestor_initialization(self, mock_subscriber, mock_publisher):
+        """Test ServiceRequestor initialization"""
+        mock_pulsar_client = MagicMock()
+        mock_request_schema = MagicMock()
+        mock_response_schema = MagicMock()
+        
+        requestor = ServiceRequestor(
+            pulsar_client=mock_pulsar_client,
+            request_queue="test-request-queue",
+            request_schema=mock_request_schema,
+            response_queue="test-response-queue",
+            response_schema=mock_response_schema,
+            subscription="test-subscription",
+            consumer_name="test-consumer",
+            timeout=300
+        )
+        
+        # Verify Publisher was created correctly
+        mock_publisher.assert_called_once_with(
+            mock_pulsar_client, "test-request-queue", schema=mock_request_schema
+        )
+        
+        # Verify Subscriber was created correctly
+        mock_subscriber.assert_called_once_with(
+            mock_pulsar_client, "test-response-queue",
+            "test-subscription", "test-consumer", mock_response_schema
+        )
+        
+        assert requestor.timeout == 300
+        assert requestor.running is True
+
+    @patch('trustgraph.gateway.dispatch.requestor.Publisher')
+    @patch('trustgraph.gateway.dispatch.requestor.Subscriber')
+    def test_service_requestor_with_defaults(self, mock_subscriber, mock_publisher):
+        """Test ServiceRequestor initialization with default parameters"""
+        mock_pulsar_client = MagicMock()
+        mock_request_schema = MagicMock()
+        mock_response_schema = MagicMock()
+        
+        requestor = ServiceRequestor(
+            pulsar_client=mock_pulsar_client,
+            request_queue="test-queue",
+            request_schema=mock_request_schema,
+            response_queue="response-queue",
+            response_schema=mock_response_schema
+        )
+        
+        # Verify default values
+        mock_subscriber.assert_called_once_with(
+            mock_pulsar_client, "response-queue",
+            "api-gateway", "api-gateway", mock_response_schema
+        )
+        assert requestor.timeout == 600  # Default timeout
+
+    @patch('trustgraph.gateway.dispatch.requestor.Publisher')
+    @patch('trustgraph.gateway.dispatch.requestor.Subscriber')
+    @pytest.mark.asyncio
+    async def test_service_requestor_start(self, mock_subscriber, mock_publisher):
+        """Test ServiceRequestor start method"""
+        mock_pulsar_client = MagicMock()
+        mock_sub_instance = AsyncMock()
+        mock_pub_instance = AsyncMock()
+        mock_subscriber.return_value = mock_sub_instance
+        mock_publisher.return_value = mock_pub_instance
+        
+        requestor = ServiceRequestor(
+            pulsar_client=mock_pulsar_client,
+            request_queue="test-queue",
+            request_schema=MagicMock(),
+            response_queue="response-queue",
+            response_schema=MagicMock()
+        )
+        
+        # Call start
+        await requestor.start()
+        
+        # Verify both subscriber and publisher start were called
+        mock_sub_instance.start.assert_called_once()
+        mock_pub_instance.start.assert_called_once()
+        assert requestor.running is True
+
+    @patch('trustgraph.gateway.dispatch.requestor.Publisher')
+    @patch('trustgraph.gateway.dispatch.requestor.Subscriber')
+    def test_service_requestor_attributes(self, mock_subscriber, mock_publisher):
+        """Test ServiceRequestor has correct attributes"""
+        mock_pulsar_client = MagicMock()
+        mock_pub_instance = AsyncMock()
+        mock_sub_instance = AsyncMock()
+        mock_publisher.return_value = mock_pub_instance
+        mock_subscriber.return_value = mock_sub_instance
+        
+        requestor = ServiceRequestor(
+            pulsar_client=mock_pulsar_client,
+            request_queue="test-queue",
+            request_schema=MagicMock(),
+            response_queue="response-queue",
+            response_schema=MagicMock()
+        )
+        
+        # Verify attributes are set correctly
+        assert requestor.pub == mock_pub_instance
+        assert requestor.sub == mock_sub_instance
+        assert requestor.running is True