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Polished Ruby Programming

You're reading from   Polished Ruby Programming Build better software with more intuitive, maintainable, scalable, and high-performance Ruby code

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Product type Paperback
Published in Jul 2021
Publisher Packt
ISBN-13 9781801072724
Length 434 pages
Edition 1st Edition
Languages
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Author (1):
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Jeremy Evans Jeremy Evans
Author Profile Icon Jeremy Evans
Jeremy Evans
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Toc

Table of Contents (23) Chapters Close

Preface 1. Section 1: Fundamental Ruby Programming Principles
2. Chapter 1: Getting the Most out of Core Classes FREE CHAPTER 3. Chapter 2: Designing Useful Custom Classes 4. Chapter 3: Proper Variable Usage 5. Chapter 4: Methods and Their Arguments 6. Chapter 5: Handling Errors 7. Chapter 6: Formatting Code for Easy Reading 8. Section 2: Ruby Library Programming Principles
9. Chapter 7: Designing Your Library 10. Chapter 8: Designing for Extensibility 11. Chapter 9: Metaprogramming and When to Use It 12. Chapter 10: Designing Useful Domain-Specific Languages 13. Chapter 11: Testing to Ensure Your Code Works 14. Chapter 12: Handling Change 15. Chapter 13: Using Common Design Patterns 16. Chapter 14: Optimizing Your Library 17. Section 3: Ruby Web Programming Principles
18. Chapter 15: The Database Is Key 19. Chapter 16: Web Application Design Principles 20. Chapter 17: Robust Web Application Security 21. Assessments 22. Other Books You May Enjoy

Chapter 11: Testing to Ensure Your Code Works

Testing is more critical in Ruby than in most other programming environments, partly because of the power and flexibility Ruby offers, and also because of Ruby's dynamic typing. With proper testing, you can have confidence that your code works the way you expect, which is critical whenever you are making changes to it.

In this chapter, you'll learn that there are a lot of important considerations when testing, such as at what levels you want to test, how much abstraction should be used in your tests, and how thorough your tests need to be.

We will cover the following topics in this chapter:

  • Understanding why testing is so critical in Ruby
  • Learning different approaches to testing
  • Considering test complexity
  • Understanding the many levels of testing
  • Realizing that 100% coverage means nothing

By the end of this chapter, you'll have a better understanding of testing in Ruby, and be better able...

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