Playwright UI Suite in Python

Overview

The same Sauce Labs demo store as my TypeScript suite, this time with Python’s testing tools: Playwright for Python through pytest-playwright, organized around the Page Object Model.

Test coverage

• Login: successful login, invalid credentials, and a locked-out user.
• Logout: logging out, and checking that a logged-out session can’t reach the inventory page.
• Products: the product grid and detail pages, adding and removing items from both, and sorting by name and price.
• Cart and checkout: viewing and removing items, completing checkout with one or more products using randomized Faker customer data, checking the required-field errors, and cancelling checkout.

Engineering details

• Shared session: pytest fixtures in conftest.py log in once per session using Playwright’s storage state, and every test that needs a signed-in user reuses it. This avoids a fresh UI login for each test.
• Settings in pytest.ini: the base URL, browser choice and failure artifacts (screenshots, video, traces) are all set there, so a plain pytest run needs no flags. Each run also produces an HTML report.
• Code quality: Ruff handles linting and formatting, enforced locally with pre-commit hooks and in CI.
• GitLab CI: every push runs lint, the full suite in the official Playwright Python image, SAST and secret detection. Test reports are kept as artifacts.