Removed integration test marker from tests/unit/test_query_resolver.TestClickCLI.test_main_function_with_contingency_table and updated tests README

Author: bp1183

tests/README.md

@@ -6,14 +6,18 @@ uv run pytest tests/unit
 ```
 
 ## Integration tests
-Require Docker and a reachable Postgres instance. Disabled by default. 
+The `tests/integration/test_docker_runner.py` require Docker and a reachable Postgres instance. 
+
+The `tests/integration/test_submission_api_session_integration.py` require a deployed 5STES instance.
+
+All integration tests are disabled by default. Run via: 
 
 ```bash
 uv run pytest tests/integration -m integration
 ```
 
 ## Docker smoke tests
-Compose-based smoke tests for the analytics and bunny-wrapper containers.
+Compose-based entrypoint smoke tests for the analytics and bunny-wrapper containers.
 ```bash
 docker compose -f docker/analytics-dev/test.compose.yml up -d
 docker compose -f docker/bunny-wrapper/test.compose.yml up -d 

tests/unit/test_query_resolver.py

@@ -11,7 +11,10 @@
 - The Click CLI interface: expected options, their names, and defaults.
 
 All tests are unit tests — external dependencies (SQLAlchemy engine, database
-connections) are mocked. No real database or container is required.
+connections) are mocked. 
+
+There is one integration style test: TestClickCLI.test_main_function_with_contingency_table
+but we classify as unit test for our purposes as it requires no external infrastacture (uses SQlLite).
 """
 import json 
 import os
@@ -450,7 +453,6 @@ def test_main_function_with_percentile_sketch(self):
                 if os.path.exists(temp_filename):
                     os.remove(temp_filename)
 
-    @pytest.mark.integration
     def test_main_function_with_contingency_table(self):
         """Test main function with contingency table analysis."""
         user_query = "SELECT gender, race FROM patients"