Objective: Apply Design Principles and Design Patterns in Test Automation CTAL-TAE Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A test automation framework uses a Singleton to manage the WebDriver instance. The team is experiencing issues when tests run in parallel because the shared driver is not thread-safe. They want to fix this while minimizing changes to existing test code. Which solution is most appropriate?

   • AReplace Singleton with a Factory that creates a new driver for each test
   • BUse ThreadLocal within the Singleton to store a driver per thread
   • CRemove the Singleton and use a global variable for the driver
   • DMake the Singleton thread-safe by synchronizing all methods
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2. 12foundation · easy

   In a test automation framework, which design pattern is best suited to provide a simplified, unified interface to a complex set of operations, such as a checkout process that involves multiple steps and subsystems?

   • AStrategy Pattern
   • BFactory Pattern
   • CFacade Pattern
   • DSingleton Pattern
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4. 13application · medium

   A test automation team is deciding between using a data-driven approach (where test data is stored externally) and a keyword-driven approach (where test steps are defined in a table). They value maintainability and want to minimize changes to test code when test data changes. Which approach should they choose?

   • AKeyword-driven approach
   • BData-driven approach
   • CIt depends on the programming language
   • DBoth are equally maintainable
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5. 14expert · hard

   A company has a large test automation suite for a legacy application. The suite has grown organically, with test code directly manipulating UI elements and business logic mixed together. The team wants to refactor to improve maintainability, but they have limited time and cannot afford a complete rewrite. They also need to continue delivering new features. Which approach best balances these constraints?

   • AComplete rewrite of the test framework using the latest design patterns
   • BContinue with the current structure and document the existing patterns
   • CIncremental adoption of the Page Object Model, starting with the most frequently used pages
   • DIntroduce a new test framework that supports better design patterns
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6. 15application · medium

   A test automation framework has a single class that handles test data loading, database connections, and reporting. The team wants to improve maintainability by separating these responsibilities. Which design principle should guide the refactoring?

   • AModularity
   • BReusability
   • CHigh cohesion and low coupling
   • DScalability
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