Grid setup and configuration in Selenium Python - Framework Patterns

Framework Mode - Grid setup and configuration

Folder Structure

selenium-python-grid-project/
├── tests/
│   ├── test_login.py
│   └── test_search.py
├── pages/
│   ├── login_page.py
│   └── search_page.py
├── utils/
│   ├── grid_manager.py
│   └── helpers.py
├── config/
│   ├── config.yaml
│   └── browsers.yaml
├── reports/
│   └── test_report.html
├── conftest.py
└── requirements.txt

Test Framework Layers

• Grid Manager Layer: Handles connection to Selenium Grid hub, sets desired capabilities, and creates remote WebDriver instances (in utils/grid_manager.py).
• Page Object Layer: Contains page classes representing UI pages with element locators and actions (in pages/ folder).
• Test Layer: Contains test cases using pytest that call page objects and use the grid manager to run tests on remote browsers (in tests/ folder).
• Utilities Layer: Helper functions and common utilities to support tests and grid setup (in utils/helpers.py).
• Configuration Layer: YAML files and fixtures to manage environment variables, browser options, and grid URLs (in config/ and conftest.py).
• Reporting Layer: Generates test reports after execution (in reports/).

Configuration Patterns

• Environment Config: Use config/config.yaml to store Selenium Grid hub URL and environment details.
• Browser Config: Use config/browsers.yaml to define browser types, versions, and capabilities.
• Dynamic Setup: Use pytest fixtures in conftest.py to read configs and create remote WebDriver instances dynamically based on parameters.
• Credentials: Store sensitive data like usernames/passwords in environment variables or secure vaults, not in code or config files.

Test Reporting and CI/CD Integration

• Use pytest plugins like pytest-html to generate HTML test reports saved in reports/ folder.
• Integrate test runs with CI/CD pipelines (e.g., GitHub Actions, Jenkins) to trigger tests on code changes.
• Configure CI to start Selenium Grid hub and nodes before tests and shut down after completion.
• Publish test reports and logs as CI artifacts for easy access and review.

Best Practices

• Use Page Object Model: Keep UI locators and actions separate from test logic for maintainability.
• Explicit Waits: Use explicit waits in page objects to handle dynamic elements reliably.
• Parameterize Browsers: Allow tests to run on different browsers and versions by reading configs dynamically.
• Isolate Tests: Each test should create and quit its own remote WebDriver session to avoid interference.
• Secure Credentials: Never hardcode sensitive information; use environment variables or secure storage.

Self Check

Where in this folder structure would you add a new page object class for the "User Profile" page?

Key Result

Use a layered Selenium Grid framework with clear folder structure, config files, and page objects for scalable remote browser testing.