Mock Objects

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prerequisites
basic Spring • basic Spring Boot • basic JUnit
skills learned
isolate changes with mock based unit tests • overcome common mock object anti-patterns
Steven Solomon
1 week · 6-8 hours per week · INTERMEDIATE
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In this liveProject, you’ll explore the difference between mock-based and traditional Test-Driven Development. You’ll write tests using mock objects for an e-commerce store, then overcome common mocks anti-patterns—including the dreaded mocks returning mocks issue. You’ll tinker with a realistic codebase which contains missing test coverage, design shortcomings, and third-party integrations, then practice evolutionary architectural design and the mockist style of TDD.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Steven Solomon
Steven Solomon is a Staff Software Engineer at GitHub. He has been writing software professionally since 2007, and has worked in many sectors, including music publishing, retail, finance, loyalty, healthcare, and education. As a team lead, Steven mentors other engineers in the strategic adoption of agile thinking and techniques, allowing them to continuously improve until they find a sustainable balance to how they approach work. One agile practice that he is particularly passionate about is test-driven development (TDD), which he has used over the past 10 years to help teams deliver and demo working software every single week.

prerequisites

This liveProject is for Java software engineers with an intermediate level of experience using Spring MVC to build web applications. To begin this liveProject, you need to be familiar with the following:


TOOLS
  • Basic Spring
  • Basic Spring Boot
  • Basic JUnit
  • Basics of Git
TECHNIQUES
  • Basic Unit Testing

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