Test suite executed from CI pipeline (#433)

* Test strategy & test cases

* Unit tests

* Integration tests

tests/unit/test_gateway/test_endpoint_stream.py

@@ -0,0 +1,124 @@
+"""
+Tests for Gateway Stream Endpoint
+"""
+
+import pytest
+from unittest.mock import MagicMock
+
+from trustgraph.gateway.endpoint.stream_endpoint import StreamEndpoint
+
+
+class TestStreamEndpoint:
+    """Test cases for StreamEndpoint class"""
+
+    def test_stream_endpoint_initialization_with_post(self):
+        """Test StreamEndpoint initialization with POST method"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher,
+            method="POST"
+        )
+        
+        assert endpoint.path == "/api/stream"
+        assert endpoint.auth == mock_auth
+        assert endpoint.dispatcher == mock_dispatcher
+        assert endpoint.operation == "service"
+        assert endpoint.method == "POST"
+
+    def test_stream_endpoint_initialization_with_get(self):
+        """Test StreamEndpoint initialization with GET method"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher,
+            method="GET"
+        )
+        
+        assert endpoint.method == "GET"
+
+    def test_stream_endpoint_initialization_default_method(self):
+        """Test StreamEndpoint initialization with default POST method"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher
+        )
+        
+        assert endpoint.method == "POST"  # Default value
+
+    @pytest.mark.asyncio
+    async def test_stream_endpoint_start_method(self):
+        """Test StreamEndpoint start method (should be no-op)"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        
+        endpoint = StreamEndpoint("/api/stream", mock_auth, mock_dispatcher)
+        
+        # start() should complete without error
+        await endpoint.start()
+
+    def test_add_routes_with_post_method(self):
+        """Test add_routes method with POST method"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        mock_app = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher,
+            method="POST"
+        )
+        
+        endpoint.add_routes(mock_app)
+        
+        # Verify add_routes was called with POST route
+        mock_app.add_routes.assert_called_once()
+        call_args = mock_app.add_routes.call_args[0][0]
+        assert len(call_args) == 1  # One route added
+
+    def test_add_routes_with_get_method(self):
+        """Test add_routes method with GET method"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        mock_app = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher,
+            method="GET"
+        )
+        
+        endpoint.add_routes(mock_app)
+        
+        # Verify add_routes was called with GET route
+        mock_app.add_routes.assert_called_once()
+        call_args = mock_app.add_routes.call_args[0][0]
+        assert len(call_args) == 1  # One route added
+
+    def test_add_routes_with_invalid_method_raises_error(self):
+        """Test add_routes method with invalid method raises RuntimeError"""
+        mock_auth = MagicMock()
+        mock_dispatcher = MagicMock()
+        mock_app = MagicMock()
+        
+        endpoint = StreamEndpoint(
+            endpoint_path="/api/stream",
+            auth=mock_auth,
+            dispatcher=mock_dispatcher,
+            method="INVALID"
+        )
+        
+        with pytest.raises(RuntimeError, match="Bad method"):
+            endpoint.add_routes(mock_app)