Add 97% test coverage

tests/test_engine/test_base_engine.py

@@ -237,6 +237,29 @@ class IncompleteEngine(BaseEngine[str, int, str]):
     # Missing transform_response, run_similarity_query, create_index, transform_chunk, run_upload_chunk
 
 
+    @pytest.mark.asyncio
+    async def test_upload_chunk_workflow(self):
+        """Test the complete upload_chunk workflow"""
+        engine = MockEngine()
+        from vector_search_mcp.models import Chunk, ChunkData
+
+        chunk = Chunk(
+            id="test-chunk-1",
+            vector=[0.1, 0.2, 0.3],
+            payload=ChunkData(
+                page_content="Test content",
+                filename="test.pdf",
+                page=1
+            )
+        )
+
+        result = await engine.upload_chunk("test_index", chunk)
+
+        # Verify the workflow called both transform_chunk and run_upload_chunk
+        assert result is True
+        # The MockEngine.run_upload_chunk should have been called with transformed chunk
+
+
 class TestAbstractMethodEnforcement:
     """Test that abstract methods must be implemented"""