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Page Object Model: What It Actually Should Look Like
9.1🔒Learning ObjectivesBy the end of this chapter, you will be able to:
9.2🔒What POM Is and What It Is NotThe Page Object Model is a design pattern where each page (or significant component) of your application is represented by a class. The…
9.3🔒POM in Playwright: The Right WayUsing the page object in a test:
9.4🔒Component Objects: Composition Over InheritanceMost applications have reusable UI components: navigation bars, sidebars, modals, forms. Instead of using class inheritance to share…
9.5🔒When POM HurtsPOM is not always the right answer. Here are scenarios where it adds complexity without value:
9.6🔒Anti-PatternsWhen assertions live in page objects, you lose flexibility. One test wants to check the heading text. Another wants to check the heading is…
9.7🔒Exercises1. Choose a web application with a login page 2. Create a LoginPage class following the patterns in this chapter 3. Write two tests using…
9.8🔒Q&AQuiz1. Where should assertions live in the Page Object Model? a) In the page object methods b) In the test files c) In a separate assertion…
9.9🔒Key Takeaways- POM encapsulates locators and user actions. Assertions and test logic belong in tests. - Use composition (component objects) instead of…
9.10🔒Career Translation- "Redesigned Page Object Model architecture from deep inheritance hierarchy to composition-based pattern, reducing page object maintenance…
9.11🔒Q&AInterview Depth CheckPrompt: "Design a Page Object Model for an e-commerce application with product listing, product detail, cart, and checkout pages."