Textual Test Fixtures Reusable pytest fixtures for efficient Textual application testing. Quick Reference pytest Configuration Core Fixture Patterns 1. App Factory Fixture Create app instances with pilot access: 2. Parametrized App Factory Support multiple app configurations: 3. Custom Terminal Size Fixture Test responsive layouts: 4. Snapshot Fixture with Common Setup Disable animations for stable snapshots: Mock Fixtures Mock API Client Mock Database Mock Time (Stable Timestamps) Mock Environment Variables conftest.py Organization Test File Organization Advanced Patterns Fixture Composition…