feat: Set up comprehensive Python testing infrastructure

[llbbl]

Set up Python Testing Infrastructure

Summary

This PR establishes a comprehensive testing infrastructure for the wayBackup Finder project using Poetry as the package manager and pytest as the testing framework.

Changes Made

Package Management

• ✅ Poetry Setup: Created pyproject.toml with Poetry configuration
• ✅ Dependencies Migration: Added existing dependencies (requests, colorama, termcolor)
• ✅ Test Dependencies: Added pytest, pytest-cov, and pytest-mock as dev dependencies

Testing Configuration

• ✅ pytest Configuration: Configured in pyproject.toml with:
  • Test discovery patterns for test_*.py and *_test.py files
  • Custom markers: unit, integration, slow
  • Strict configuration and verbose output
  • 80% coverage threshold requirement
• ✅ Coverage Settings: Configured coverage reporting with:
  • HTML reports in htmlcov/ directory
  • XML reports for CI integration
  • Terminal output with missing lines
  • Proper exclusions for test files and virtual environments

Directory Structure

tests/
├── __init__.py
├── conftest.py           # Shared pytest fixtures
├── unit/
│   └── __init__.py
├── integration/  
│   └── __init__.py
└── test_setup_validation.py  # Validation tests

Shared Test Utilities (conftest.py)

• 🔧 temp_dir: Temporary directory fixture for file operations
• 🔧 mock_requests: Mock HTTP requests for testing API calls
• 🔧 mock_extensions_file: Create temporary extensions.txt for testing
• 🔧 mock_domains_file: Create temporary domains file for testing
• 🔧 sample_extensions/urls: Sample data fixtures
• 🔧 mock_wayback_response: Mock Wayback Machine API responses
• 🔧 suppress_output/mock_colorama: Test output control

Additional Setup

• ✅ .gitignore: Added comprehensive exclusions for:
  • Testing artifacts (.pytest_cache/, .coverage, htmlcov/)
  • Python build artifacts and virtual environments
  • IDE files and OS-specific files
  • Claude Code settings (.claude/)
• ✅ Validation Tests: Created infrastructure validation tests to ensure setup works

Running Tests

Install Dependencies

poetry install

Run Tests

# Run all tests with coverage
poetry run pytest

# Run specific test categories
poetry run pytest -m unit
poetry run pytest -m integration  
poetry run pytest -m "not slow"

# Run with additional options
poetry run pytest --cov-report=html --verbose

Coverage Reports

• Terminal: Shows coverage summary with missing lines
• HTML: Open htmlcov/index.html in browser for detailed reports
• XML: coverage.xml for CI/CD integration

Validation Results

✅ All validation tests pass (10/10)
✅ Coverage reporting generates correctly
✅ pytest discovers tests properly
✅ Custom markers work as expected
✅ Shared fixtures are available
✅ Project structure is valid

Notes

• Coverage Threshold: Set to 80% - will need to be adjusted based on testing strategy
• Dependencies: All existing dependencies preserved and migrated to Poetry
• No Unit Tests: This PR only sets up infrastructure - actual unit tests for the codebase should be added separately
• Poetry Scripts: Standard poetry run pytest command works for running tests

The testing infrastructure is now ready for developers to start writing comprehensive unit and integration tests for the wayBackup Finder functionality.

🤖 Generated with Claude Code