Testing Spring Boot Applications Demystified
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Testing Spring Boot Applications Demystified

Write Better Tests, Ship Faster: A Practical Guide to Spring Boot Testing

About the Book

Testing separates reliable applications from buggy disasters. Yet many developers struggle with Spring Boot testing - wrestling with complex dependency configurations, mocking external services, and writing tests that actually catch real problems.

Stop fighting your test suite and start building applications you can trust.

This book cuts through the confusion with practical, battle-tested strategies that work in real projects.

You'll discover how to write tests that catch bugs before they reach production, configure your testing environment without headaches, and build a comprehensive testing strategy that gives you genuine confidence in your code.

What you'll master:

  • Unit testing that isolates components effectively
  • Sliced testing for fast and isolated tests
  • Test configuration that doesn't break every deployment
  • Integration testing that reveals system-level issues

Whether you're debugging flaky tests or building your first Spring Boot application, this guide transforms testing from a necessary evil into your competitive advantage. Each chapter includes working examples you can implement immediately, plus common pitfalls to avoid.

Ready to ship code with confidence? Your users - and your sleep schedule - will thank you.

About the Author

Philip Riecks
Philip Riecks

Philip is an independent IT consultant from Germany, specializing in Java, Spring Boot, and AWS. He helps teams build confidence in developing, changing, and deploying their Java Spring Boot applications by making testing easier and more effective.

Under his slogan, "Testing Spring Boot Applications Made Simple," Philip shares practical recipes, tips, and tricks through his blog, online courses, and YouTube channel. His insights empower developers to create reliable, high-quality applications with less stress and more success.

When he’s not consulting, Philip is busy sharing his knowledge at rieckpil.de - drop by to learn more!

Table of Contents

  • Introduction & Motivation
    • About this Book
    • About the Author
    • Why Testing Matters
    • What You’ll Learn in This Book
    • Who This Book Is For
    • Agenda
  • Chapter 1: Testing Fundamentals in Spring Boot Projects
    • Defining a Testing Strategy
    • Build Tool Configuration
    • Unit Testing Fundamentals
    • The Testing Toolkit
    • Writing Effective Unit Tests
    • Best Practices for Unit Testing
    • Summary
  • Chapter 2: Testing with a Sliced Application Context
    • Understanding Test Slices
    • Testing Web Controllers with @WebMvcTest
    • Testing Data Access with @DataJpaTest
  • Chapter 3: Testing with @SpringBootTest
    • Full Application Context Testing
    • Testing Different Application Layers Together
    • Best Practices for @SpringBootTest
  • Chapter 4: Testing Pitfalls and Best Practices
    • Common Testing Anti-Patterns
    • Test Performance Optimization
    • Test Data Management
    • Testing Security
    • Best Practices Summary
  • Conclusion: The Future of Testing in Spring Boot
    • Embracing a Testing Culture
    • Key Takeaways
    • Continuous Learning
    • The Simple Truth About Spring Boot Testing
    • What We Couldn’t Cover: The Extended Testing Universe
    • Looking Ahead: Emerging Trends
    • Ready to Master Spring Boot Testing?
    • Next Steps
    • Further Resources
  • Changelog

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