Test functions in PyTest - Framework Patterns

Framework Mode - Test functions

Folder Structure

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

utils/
├── helpers.py
└── data_provider.py

pytest.ini
requirements.txt

This structure keeps all test functions inside the tests/ folder. Each test file groups related test functions. The conftest.py file holds shared fixtures.

Test Framework Layers

• Test Functions: Simple Python functions starting with test_. Each function tests one behavior.
• Fixtures: Setup and teardown code shared across tests, defined in conftest.py.
• Utilities: Helper functions and data providers in utils/ to keep tests clean.
• Configuration: pytest.ini for pytest settings and environment control.

Configuration Patterns

• pytest.ini: Configure markers, test paths, and default options.
• Environment Variables: Use os.environ or pytest plugins to switch environments (dev, staging, prod).
• Fixtures with Parameters: Use parametrized fixtures to run tests with different browsers or data sets.
• Secrets Management: Store credentials securely outside the repo, load them in fixtures.

Test Reporting and CI/CD Integration

• pytest Output: Clear pass/fail results in console with summary.
• JUnit XML Reports: Use --junitxml=report.xml to generate reports for CI tools.
• HTML Reports: Plugins like pytest-html create easy-to-read reports with screenshots.
• CI/CD Integration: Run tests automatically on push using GitHub Actions, GitLab CI, or Jenkins.

Best Practices

1. One Assertion per Test Function: Keep tests focused and easy to debug.
2. Descriptive Test Names: Use clear names like test_login_with_valid_credentials.
3. Use Fixtures for Setup: Avoid repeating setup code inside test functions.
4. Keep Tests Independent: Each test function should run alone without relying on others.
5. Use Parametrization: Run the same test function with multiple inputs to cover more cases efficiently.

Self Check

Where would you add a new test function for verifying the user profile update feature in this framework structure?

Key Result

Organize pytest test functions in the tests/ folder with clear naming, fixtures for setup, and utilities for helpers.