Feature/tests #7
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…d .vscode settings for pytest configuration
- Implemented unit tests for TransactionState, Transaction, and TransactionManager classes. - Verified transaction state transitions (ACTIVE, COMMITTED, ROLLED_BACK). - Tested transaction lifecycle including commit and rollback scenarios. - Ensured proper handling of connection errors during commit and rollback. - Added integration tests for complete transaction lifecycle and abandoned transaction cleanup. - Included logging integration tests to verify appropriate logging during operations. - Ensured uniqueness of transaction IDs across multiple transactions.
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Pull Request Overview
This pull request adds comprehensive test coverage for previously untested modules in the MPZSQL FlightSQL implementation. The primary focus is on expanding test coverage with new test files for transaction management, authentication, security, backend implementations, and FlightSQL protocol components. Additionally, the PR includes configuration updates for testing infrastructure, authentication improvements, and comment updates to align with the "Examples" server pattern.
- Added 10 new comprehensive test files covering critical components like transaction management, authentication, security/TLS, backend implementations, and FlightSQL protocol modules
- Enhanced testing infrastructure with pytest-cov dependency and VSCode settings for improved development experience
- Improved authentication robustness with better session cleanup and token validation error handling
- Updated reference patterns from "C++" to "Examples" throughout codebase for consistency
Reviewed Changes
Copilot reviewed 24 out of 27 changed files in this pull request and generated 4 comments.
Show a summary per file
| File | Description |
|---|---|
| tests/test_transaction.py | Comprehensive tests for transaction state management, lifecycle, and cleanup |
| tests/test_sqlite_backend_comprehensive.py | Extensive SQLite backend testing including edge cases and performance scenarios |
| tests/test_security.py | Security and TLS module tests covering authentication, certificates, and middleware |
| tests/test_flightsql_*_comprehensive.py | Four comprehensive FlightSQL protocol test suites (server base, protobuf, protocol, minimal) |
| tests/test_auth.py | Authentication manager and JWT token validation tests |
| tests/test_duckdb_backend_comprehensive.py | DuckDB backend comprehensive testing including Arrow integration |
| pyproject.toml | Added pytest-cov dependency for test coverage reporting |
| src/mpzsql/backends/sqlite_backend.py | Enhanced type inference to handle mixed data types more robustly |
| src/mpzsql/auth.py | Improved session cleanup with better error handling for corrupted data |
Comments suppressed due to low confidence (3)
tests/test_security.py:109
- Same hardcoded /tmp path issue as in sqlite backend test. Use tempfile module for cross-platform compatibility.
token = jwt.encode(payload, "test-secret-key", algorithm="HS256")
tests/test_flightsql_protobuf_comprehensive.py:576
- [nitpick] Performance tests with hard-coded time limits can be flaky in CI environments. Consider using relative performance comparisons or making timeouts configurable.
# Should complete 100 schema generations in under 1 second
tests/test_duckdb_backend_comprehensive.py:741
- The test name suggests concurrent access testing but implements sequential access. Consider renaming the test method to reflect actual behavior or documenting the threading limitation.
# Test sequential access instead of concurrent to avoid DuckDB threading issues
| def test_created_at_timestamp(self): | ||
| """Test that created_at timestamp is recent.""" | ||
| creation_time = datetime.utcnow() | ||
| transaction = Transaction("txn_test", "session_test", Mock()) |
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[nitpick] Consider using the existing fixture pattern with self.transaction_id, self.session_id variables instead of hardcoded strings for consistency.
| transaction = Transaction("txn_test", "session_test", Mock()) | |
| transaction = Transaction(self.transaction_id, self.session_id, Mock()) |
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| def test_init_with_nonexistent_database_creates_file(self): | ||
| """Test initialization with nonexistent database creates the file.""" | ||
| nonexistent_path = "/tmp/test_nonexistent.db" |
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Using hardcoded /tmp path may fail on Windows systems. Consider using tempfile.gettempdir() or tempfile.mktemp() for cross-platform compatibility.
| nonexistent_path = "/tmp/test_nonexistent.db" | |
| nonexistent_path = os.path.join(tempfile.gettempdir(), "test_nonexistent.db") |
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| # Check if all non-null values are of the same type | ||
| first_type = type(non_null_values[0]) | ||
| if not all(isinstance(v, first_type) for v in non_null_values): |
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[nitpick] The type checking loop could be expensive for large datasets. Consider checking only a sample of values or limiting the check to the first N values for performance.
| # Check if all non-null values are of the same type | |
| first_type = type(non_null_values[0]) | |
| if not all(isinstance(v, first_type) for v in non_null_values): | |
| # Limit the type-checking loop to the first 100 non-null values for performance | |
| sample_values = non_null_values[:100] | |
| first_type = type(sample_values[0]) | |
| if not all(isinstance(v, first_type) for v in sample_values): |
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| except (TypeError, AttributeError): | ||
| # Handle corrupted session data by removing it |
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The broad exception catching for corrupted session data could mask other issues. Consider logging the specific error or being more specific about what constitutes corrupted data.
| except (TypeError, AttributeError): | |
| # Handle corrupted session data by removing it | |
| except (TypeError, AttributeError) as e: | |
| # Log the specific error and handle corrupted session data by removing it | |
| logger.warning(f"Error processing session {session_id}: {e}") |
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Added tests for missing files.
This pull request includes updates to testing configurations, authentication logic, and various server implementation details to align with the "Examples" server pattern. Key changes include enabling pytest-cov for test coverage, fixing skipped tests, improving session handling, and updating comments and logic for consistency with the Examples server.
Testing and Configuration Updates:
.vscode/settings.json: Added pytest configuration to enable testing with pytest and disable unittest.pyproject.toml: Addedpytest-covas a dependency for test coverage reporting.PRIORITY_3_COMPLETE.md: Documented the completion of Priority 3 FlightSQL testing with a 100% success rate, including fixes for previously skipped tests and detailed test coverage breakdown.Authentication Enhancements:
src/mpzsql/auth.py: Improved session cleanup to handle corrupted session data gracefully and added validation for empty JWT tokens invalidate_token. [1] [2]Server Implementation Updates:
src/mpzsql/flightsql/minimal.py,src/mpzsql/backends/duckdb_backend.py,src/mpzsql/cli.py) to replace references to the "C++" server pattern with the "Examples" server pattern in comments and logic, ensuring consistency across the codebase. [1] [2] [3]Backend Improvements:
src/mpzsql/backends/sqlite_backend.py: Enhanced_infer_arrow_typeto handle mixed data types by defaulting to strings when non-null values are of different types.These changes collectively improve test coverage, align the server implementation with the Examples pattern, and enhance the robustness of authentication and session management.