Feature/never enough tests stress suite#14021
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LooneyRichie wants to merge 3 commits intopytest-dev:mainfrom
Closed
Feature/never enough tests stress suite#14021LooneyRichie wants to merge 3 commits intopytest-dev:mainfrom
LooneyRichie wants to merge 3 commits intopytest-dev:mainfrom
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This contribution adds a comprehensive stress testing suite for pytest that pushes the boundaries of pytest's capabilities and validates its behavior under extreme conditions. Features: - 1,660+ test cases covering edge cases and stress scenarios - Parametrization explosion testing (1,000 tests from single function) - Cross-language integration tests (Python ↔ C++ via subprocess) - Deep fixture chain validation (5+ levels) - Chaos testing with randomization and edge case detection - Performance benchmarking tools - Parallel execution validation (pytest-xdist) Test Categories: - Parametrization stress tests (100, 400, 1000 cases) - String edge cases (null bytes, Unicode, huge strings) - Numeric boundary tests (overflow, underflow, precision) - C++ boundary conditions (buffer sizes, memory allocation) - Async fixture handling - Fixture dependency patterns (deep chains, diamond dependencies) - Collection stress tests Validated Against: - pytest 9.1.0.dev107+g8fb7815f1 - Python 3.12.3 - Successfully executed 1,626 tests in 17.82s with 4 parallel workers Benefits: - Validates pytest handles extreme parametrization efficiently - Tests cross-language subprocess integration patterns - Identifies boundary condition bugs (found and fixed C++ buffer bug) - Provides regression testing for performance at scale - Demonstrates best practices for large test suites This suite found a real boundary condition bug in the C++ components during development, demonstrating the value of chaos testing methodology.
- Add FORK_AND_CONTRIBUTE.md: Complete 11-step guide for forking and submitting PRs - Add PULL_REQUEST_TEMPLATE.md: Standardized PR template with checklist - Add PRE_CONTRIBUTION_CHECKLIST.md: Comprehensive validation checklist - Update README.md: Add Quick Contribution Setup section These files provide clear guidance for contributors on how to: - Fork and clone the pytest repository - Set up the development environment - Create and submit pull requests - Validate their work before submission
for more information, see https://pre-commit.ci
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