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Test-Driven Development with Java

You're reading from   Test-Driven Development with Java Create higher-quality software by writing tests first with SOLID and hexagonal architecture

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Product type Paperback
Published in Jan 2023
Publisher Packt
ISBN-13 9781803236230
Length 348 pages
Edition 1st Edition
Languages
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Author (1):
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Alan Mellor Alan Mellor
Author Profile Icon Alan Mellor
Alan Mellor
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Table of Contents (21) Chapters Close

Preface 1. Part 1: How We Got to TDD
2. Chapter 1: Building the Case for TDD FREE CHAPTER 3. Chapter 2: Using TDD to Create Good Code 4. Chapter 3: Dispelling Common Myths about TDD 5. Part 2: TDD Techniques
6. Chapter 4: Building an Application Using TDD 7. Chapter 5: Writing Our First Test 8. Chapter 6: Following the Rhythms of TDD 9. Chapter 7: Driving Design – TDD and SOLID 10. Chapter 8: Test Doubles – Stubs and Mocks 11. Chapter 9: Hexagonal Architecture –Decoupling External Systems 12. Chapter 10: FIRST Tests and the Test Pyramid 13. Chapter 11: Exploring TDD with Quality Assurance 14. Chapter 12: Test First, Test Later, Test Never 15. Part 3: Real-World TDD
16. Chapter 13: Driving the Domain Layer 17. Chapter 14: Driving the Database Layer 18. Chapter 15: Driving the Web Layer 19. Index 20. Other Books You May Enjoy

Summary

We’ve taken our first steps into TDD and learned about the AAA structure of each test. We’ve seen how it is possible to design our software and write our test before our production code and get cleaner, more modular designs as a result. We learned what makes for a good test and learned some common techniques used to catch common programming errors and test code that throws exceptions.

It is important to understand the flow of using AAA sections inside our FIRST tests, as this gives us a template we can reliably follow. It is also important to understand the flow of design ideas, as used in the previous Wordz example. Writing our tests is literally taking the design decisions we make and capturing them in unit test code. This provides fast feedback on how clean our design is, as well as providing an executable specification for future readers of our code.

In the next chapter, we will add tests and drive out a complete implementation for our word-scoring object...

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