test docs

Author: millerjp

docs/integration-test-consolidation-plan.md

@@ -48,48 +48,50 @@ Each test file should have:
 
 ### Protocol Tests
 - [x] test_protocol_version_validation.py - COMPLETED
-- [ ] test_protocol_edge_cases.py
-- [ ] test_protocol_exceptions.py
+- [x] test_protocol_edge_cases.py - COMPLETED
+- [x] test_protocol_exceptions.py - COMPLETED
 
 ### Specialized Tests
-- [ ] test_prepared_statements.py
-- [ ] test_prepared_statement_invalidation.py
-- [ ] test_lwt_operations.py
-- [ ] test_schema_changes.py
-- [ ] test_sql_injection_protection.py
-- [ ] test_context_manager_safety.py
-- [ ] test_event_loop_handling.py
-- [ ] test_response_future_cleanup.py
-- [ ] test_cluster_edge_cases.py
-- [ ] test_session_edge_cases.py
-- [ ] test_cluster_retry.py
+- [x] test_prepared_statements.py - COMPLETED
+- [x] test_prepared_statement_invalidation.py - COMPLETED
+- [x] test_lwt_operations.py - COMPLETED
+- [x] test_schema_changes.py - COMPLETED
+- [x] test_sql_injection_protection.py - COMPLETED
+- [x] test_context_manager_safety.py - COMPLETED
+- [x] test_event_loop_handling.py - COMPLETED
+- [x] test_response_future_cleanup.py - COMPLETED
+- [x] test_cluster_edge_cases.py - COMPLETED
+- [x] test_session_edge_cases.py - COMPLETED
+- [x] test_cluster_retry.py - COMPLETED
 
 ### Utility Tests
-- [ ] test_utils.py
-- [ ] test_helpers.py
-- [ ] test_constants.py
-- [ ] test_coverage_summary.py
+- [x] test_utils.py - COMPLETED
+- [x] test_helpers.py - COMPLETED (helper module, no test functions)
+- [x] test_constants.py - COMPLETED
+- [x] test_coverage_summary.py - COMPLETED
 
 ## Integration Tests Progress
 
 ### Consolidated Tests
-- [ ] test_crud_operations.py
-- [ ] test_batch_and_lwt_operations.py
-- [ ] test_data_types_and_counters.py
-- [ ] test_consistency_and_prepared_statements.py
-- [ ] test_concurrent_and_stress_operations.py
+- [x] test_crud_operations.py - COMPLETED (already well documented)
+- [x] test_batch_and_lwt_operations.py - COMPLETED (already well documented)
+- [x] test_data_types_and_counters.py - COMPLETED (already well documented)
+- [x] test_consistency_and_prepared_statements.py - COMPLETED (already well documented)
+- [x] test_concurrent_and_stress_operations.py - COMPLETED (already well documented)
 
 ### Individual Tests
-- [ ] test_basic_operations.py
-- [ ] test_select_operations.py
-- [ ] test_streaming_operations.py
-- [ ] test_network_failures.py
-- [ ] test_reconnection_behavior.py
-- [ ] test_context_manager_safety_integration.py
-- [ ] test_driver_compatibility.py
-- [ ] test_simple_statements.py
-- [ ] test_counter_operations.py
-- [ ] test_cassandra_data_types.py
+- [x] test_basic_operations.py - COMPLETED
+- [x] test_select_operations.py - COMPLETED
+- [x] test_streaming_operations.py - COMPLETED
+- [x] test_network_failures.py - COMPLETED
+- [x] test_reconnection_behavior.py - COMPLETED
+- [x] test_context_manager_safety_integration.py - COMPLETED
+- [x] test_driver_compatibility.py - COMPLETED
+- [x] test_simple_statements.py - COMPLETED
+- [x] test_empty_resultsets.py - COMPLETED
+- [x] test_fastapi_reconnection_isolation.py - COMPLETED
+- [x] test_long_lived_connections.py - COMPLETED
+- [x] test_protocol_version.py - COMPLETED
 
 ## BDD Tests Progress
 - [ ] test_bdd_concurrent_load.py
@@ -107,9 +109,9 @@ Each test file should have:
 ## Progress Notes
 - Started: 2025-07-01
 - Last Updated: 2025-07-01
-- Files Completed: 18 unit test files fully documented
+- Files Completed: 52 test files fully documented (35 unit + 17 integration)
 - Documentation Style: Added comprehensive "What this tests" and "Why this matters" sections
-- Next File: test_protocol_edge_cases.py
+- Next File: BDD tests
 
 ## Completed Documentation Summary
 

docs/test-documentation-progress.md

@@ -16,13 +16,51 @@
 
 @scenario("features/concurrent_load.feature", "Thread pool exhaustion prevention")
 def test_thread_pool_exhaustion():
-    """Test thread pool exhaustion prevention."""
+    """
+    Test thread pool exhaustion prevention.
+
+    What this tests:
+    ---------------
+    1. Thread pool limits respected
+    2. No deadlock under load
+    3. Queries complete eventually
+    4. Graceful degradation
+
+    Why this matters:
+    ----------------
+    Thread exhaustion causes:
+    - Application hangs
+    - Query timeouts
+    - Poor user experience
+
+    Must handle high load
+    without blocking.
+    """
     pass
 
 
 @scenario("features/concurrent_load.feature", "Memory leak prevention under load")
 def test_memory_leak_prevention():
-    """Test memory leak prevention."""
+    """
+    Test memory leak prevention.
+
+    What this tests:
+    ---------------
+    1. Memory usage stable
+    2. GC works effectively
+    3. No continuous growth
+    4. Resources cleaned up
+
+    Why this matters:
+    ----------------
+    Memory leaks fatal:
+    - OOM crashes
+    - Performance degradation
+    - Service instability
+
+    Long-running apps need
+    stable memory usage.
+    """
     pass
 
 

tests/bdd/test_bdd_concurrent_load.py

@@ -21,7 +21,26 @@ class TestBasicOperations:
     async def test_connection_and_keyspace(
         self, cassandra_cluster, shared_keyspace_setup, pytestconfig
     ):
-        """Test connecting to Cassandra and using shared keyspace."""
+        """
+        Test connecting to Cassandra and using shared keyspace.
+
+        What this tests:
+        ---------------
+        1. Cluster connection works
+        2. Keyspace can be set
+        3. Tables can be created
+        4. Cleanup is performed
+
+        Why this matters:
+        ----------------
+        Connection management is fundamental:
+        - Must handle network issues
+        - Keyspace isolation important
+        - Resource cleanup critical
+
+        Basic connectivity is the
+        foundation of all operations.
+        """
         session = await cassandra_cluster.connect()
 
         try:
@@ -54,7 +73,26 @@ async def test_connection_and_keyspace(
             await session.close()
 
     async def test_async_iteration(self, cassandra_session):
-        """Test async iteration over results with proper patterns."""
+        """
+        Test async iteration over results with proper patterns.
+
+        What this tests:
+        ---------------
+        1. Async for loop works
+        2. Multiple rows handled
+        3. Row attributes accessible
+        4. No blocking in iteration
+
+        Why this matters:
+        ----------------
+        Async iteration enables:
+        - Non-blocking data processing
+        - Memory-efficient streaming
+        - Responsive applications
+
+        Critical for handling large
+        result sets efficiently.
+        """
         # Use the unique users table created for this test
         users_table = cassandra_session._test_users_table
 
@@ -98,7 +136,26 @@ async def test_async_iteration(self, cassandra_session):
             pytest.fail(f"Test setup failed: {e}")
 
     async def test_error_handling(self, cassandra_session):
-        """Test error handling for invalid queries."""
+        """
+        Test error handling for invalid queries.
+
+        What this tests:
+        ---------------
+        1. Invalid table errors caught
+        2. Invalid keyspace errors caught
+        3. Syntax errors propagated
+        4. Error messages preserved
+
+        Why this matters:
+        ----------------
+        Proper error handling enables:
+        - Debugging query issues
+        - Graceful failure modes
+        - Clear error messages
+
+        Applications need clear errors
+        to handle failures properly.
+        """
         # Test invalid table query
         with pytest.raises(InvalidRequest) as exc_info:
             await cassandra_session.execute("SELECT * FROM non_existent_table")