Strategy Design Pattern Explained 🔄 | LambdaTest

About the Video

Join 𝑨𝒏𝒕𝒐𝒏 𝑨𝒏𝒈𝒆𝒍𝒐𝒗 (@𝒂𝒏𝒈𝒆𝒍𝒐𝒗𝒔𝒕𝒂𝒏𝒕𝒐𝒏), the Co-Founder & CTO of Automate The Planet Ltd., in Part 6 of our Design Patterns Tutorial series, as he explains the Strategy Design Pattern. Master the complexities of this pattern and learn how to implement it effectively in your software projects.

Watch this video and learn how Strategy Design Pattern can improve the maintainability and flexibility of your automated test suites. By the end of this tutorial, you'll not only gain insights into the Strategy Design Pattern but also sharpen your skills with a hands-on Review Test Project.

Video Chapters

00:00 Introduction

03:25 Review test project

13:39 Strategy design pattern implementation

40:20 Closing words

Key Topics Covered

Introduction to Design Patterns in Automated Testing: The video begins with an overview of how traditional design patterns used in programming can be adapted and applied to automated testing. It touches on previously covered patterns like the Proxy, Adapter, Decorator, Singleton, Dependency Injection, and Chain of Responsibility, explaining their roles in enhancing test frameworks.

Review of the Test Project: A brief refresher is provided on the test project being used as a case study throughout the course. This includes a walkthrough of the automation scenarios, such as product searches, comparisons, and the application of the Page Object Model and other design patterns to improve maintainability and test readability.

Explanation of the Strategy Design Pattern: The core of the video is dedicated to the Strategy Design Pattern, outlining its purpose to enable the selection of algorithms at runtime. This pattern is particularly useful in automated testing for defining various element locating strategies or wait conditions, thereby adding flexibility and extensibility to test frameworks.

Implementation of the Strategy Design Pattern: Detailed code examples show how to implement the Strategy Design Pattern to create customizable element locator strategies. This includes creating abstract base classes and concrete implementations for different types of locators, such as ID, XPath, or CSS selectors, and how these can be used to simplify and enhance the element finding process within tests.

Extending the Test Framework with New Strategies: The video demonstrates how to extend the test framework with new locator strategies, showcasing the flexibility offered by the Strategy Design Pattern. It covers practical examples of adding custom strategies for element location and waiting conditions, highlighting the pattern's applicability to complex automation scenarios.

Closing Words and Future Topics: The video concludes with a summary of the Strategy Design Pattern's benefits in automated testing and a teaser for upcoming topics in the series, such as the Repository and Factory design patterns, which further contribute to efficient test data management and framework extensibility.

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