Library › Book 13 › Fixtures, Hooks, and Test Lifecycle
Fixtures, Hooks, and Test Lifecycle
10.1🔒Learning ObjectivesBy the end of this chapter, you will be able to:
10.2🔒What Are Fixtures?Fixtures in Playwright are a dependency injection system. Instead of setting up test dependencies in beforeEach hooks and tearing them down…
10.3🔒Custom FixturesThe power of fixtures comes from creating your own. Custom fixtures let you inject page objects, authenticated sessions, test data, and API…
10.4🔒Fixture ScopesFixtures can be scoped to individual tests or to worker processes:
10.5🔒Fixtures vs Hooks: When to Use EachPlaywright supports both fixtures and traditional hooks:
10.6🔒Fixture Composition: Building a Test InfrastructureFor a production test suite, you compose multiple fixtures into a comprehensive test infrastructure:
10.7🔒Exercises1. Create a page object for a page in your application 2. Create a custom fixture that instantiates and navigates to the page 3. Write two…
10.8🔒Q&AQuiz1. What is the purpose of the use function in a Playwright fixture? a) To import dependencies b) To provide the fixture value to the test…
10.9🔒Key Takeaways- Fixtures are Playwright's dependency injection system: declare what your test needs, and Playwright provides it. - Custom fixtures…
10.10🔒Career Translation- "Designed fixture-based test infrastructure with API-driven authentication, reducing per-test setup time from 4 seconds to 200ms"…
10.11🔒Q&AInterview Depth CheckPrompt: "Design a fixture system for a multi-tenant SaaS application where tests need different user roles and organizations."