Test classes in PyTest - Framework Patterns

Framework Mode - Test classes

Folder Structure

tests/
├── test_login.py
├── test_shopping_cart.py
├── test_checkout.py
└── conftest.py

src/
├── pages/
│   ├── login_page.py
│   ├── cart_page.py
│   └── checkout_page.py
└── utils/
    ├── browser.py
    └── helpers.py

Test Framework Layers

• Test Classes: Group related test functions inside classes for better organization and shared setup/teardown.
• Page Objects: Python classes representing UI pages with methods to interact with page elements.
• Utilities: Helper functions and browser setup code to support tests.
• Configuration: Settings for environment, browser, and credentials managed in conftest.py and config files.

Configuration Patterns

• conftest.py: Define fixtures here for browser setup, test data, and environment variables.
• pytest.ini or tox.ini: Store pytest options and markers.
• Environment Variables: Use OS environment variables or .env files to manage sensitive data like credentials.
• Command Line Options: Use pytest hooks to accept parameters like --browser or --env for flexible test runs.

Test Reporting and CI/CD Integration

• Use pytest built-in reports with --junitxml=report.xml for XML reports consumable by CI tools.
• Integrate with CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI) to run tests automatically on code changes.
• Use plugins like pytest-html for readable HTML reports.
• Configure test failure screenshots or logs for easier debugging.

Best Practices for Test Classes in pytest

• Group related tests in classes without __init__ methods to share fixtures via self or class-level fixtures.
• Use setup_method and teardown_method or pytest fixtures for setup and cleanup.
• Keep test methods small and focused on one behavior.
• Name test classes starting with Test and test methods starting with test_ for pytest discovery.
• Avoid state sharing between tests to keep tests independent and reliable.

Self Check

Where would you add a new test class for user profile features in this framework structure?

Key Result

Organize related test functions inside pytest test classes for clear structure and shared setup.