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Test-Driven Development in Go

You're reading from   Test-Driven Development in Go A practical guide to writing idiomatic and efficient Go tests through real-world examples

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Product type Paperback
Published in Apr 2023
Publisher Packt
ISBN-13 9781803247878
Length 342 pages
Edition 1st Edition
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Author (1):
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Adelina Simion Adelina Simion
Author Profile Icon Adelina Simion
Adelina Simion
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Table of Contents (18) Chapters Close

Preface 1. Part 1: The Big Picture
2. Chapter 1: Getting to Grips with Test-Driven Development FREE CHAPTER 3. Chapter 2: Unit Testing Essentials 4. Chapter 3: Mocking and Assertion Frameworks 5. Chapter 4: Building Efficient Test Suites 6. Part 2: Integration and End-to-End Testing with TDD
7. Chapter 5: Performing Integration Testing 8. Chapter 6: End-to-End Testing the BookSwap Web Application 9. Chapter 7: Refactoring in Go 10. Chapter 8: Testing Microservice Architectures 11. Part 3: Advanced Testing Techniques
12. Chapter 9: Challenges of Testing Concurrent Code 13. Chapter 10: Testing Edge Cases 14. Chapter 11: Working with Generics 15. Assessments 16. Index 17. Other Books You May Enjoy

Chapter 11, Working with Generics

  1. Generics is the ability to write code that is able to be used with different data types without being limited to a single type. It is a powerful mechanism, supported by most programming languages, and allows us to write flexible, reusable code.
  2. The main components of Go generics are type parameters, type constraints, type arguments, and type inferences:
    1. Type parameters are the placeholder types that will be used in our generic code, typically denoted by a single letter.
    2. Type constraints restrict the types that can be used with our generic function or type.
    3. Type arguments are the types that are passed to the function upon invocation. They replace the type parameters and satisfy the type constraints.
    4. Type inference is the process that takes place under the hood to determine the type of a variable, without us needing to explicitly declare it. This makes generic code less verbose.
  3. Testing generic code with table-driven tests will often involve...
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