Managing Highly Concurrent, State-Dependent Playwright Sessions

Описание и применение

Используйте BrowserContext в Playwright для изоляции и очистки состояния в тестах, создавая контекст в beforeEach и закрывая его в afterEach, а также удаляя данные через API.

Задача

Large-scale Playwright E2E load tests for stateful processes (login, cart, checkout) on distributed CI/CD leave dirty backend and browser state, causing flaky failures.

Результат

State isolation and cleanup achieved with BrowserContext and test hooks, eliminating flaky failures and improving test speed.

Рабочий процесс

• Create a new BrowserContext in test.beforeEach
• Set up test data (e.g., register user) and login within the context
• Run the test steps in the isolated context
• In test.afterEach, close the BrowserContext
• Make API calls (DELETE /api/user/{id}) to clean backend data

Доказательства

Leverage Playwright's BrowserContext for isolation and robust test hooks for setup/teardown.

Источник

Creating new BrowserContext instances is far more efficient than launching a full browser per test.

Источник