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Test-Driven Development in Go
Test-Driven Development in Go

Test-Driven Development in Go: A practical guide to writing idiomatic and efficient Go tests through real-world examples

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Profile Icon Adelina Simion
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$19.99 per month
Full star icon Full star icon Full star icon Full star icon Half star icon 4.9 (16 Ratings)
Paperback Apr 2023 342 pages 1st Edition
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Arrow left icon
Profile Icon Adelina Simion
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$19.99 per month
Full star icon Full star icon Full star icon Full star icon Half star icon 4.9 (16 Ratings)
Paperback Apr 2023 342 pages 1st Edition
eBook
$27.99 $31.99
Paperback
$39.99
Subscription
Free Trial
Renews at $19.99p/m
eBook
$27.99 $31.99
Paperback
$39.99
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Renews at $19.99p/m

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Test-Driven Development in Go

Getting to Grips with Test-Driven Development

Programs and software have never been more complex than they are today. From my experience, the typical tech startup setup involves deployment to the cloud, distributed databases, and a variety of software integrations from the very beginning of the project. As we use software and consume data at unprecedented rates, the expectation of high availability and scalability has become standard for all the services we interact with.

So, why should we care about testing when we are so busy delivering complex functionality in fast-paced, high-growth environments? Simply put, to verify and prove that the code you write behaves and performs to the expectations and requirements of your project. This is important to you as the software professional, as well as to your team and product manager.

In this chapter, we’ll look at the Agile technique of Test-Driven Development (TDD) and how we can use it to verify production code. TDD puts test writing before implementation, ensuring that test scripts cover and change with requirements. Its techniques allow us to deliver quality, well-tested, and maintainable code. The task of software testing is a necessity for all programmers, and TDD seamlessly incorporates test writing into the code delivery process.

This chapter begins our exploration into the world of testing. It will give you the required understanding of TDD and its main techniques. Defining and setting these fundamentals firmly in our minds will set the stage for the later implementation of automated testing in Go.

In this chapter, we’ll cover the following main topics:

  • The world and fundamentals of TDD
  • The benefits and use of TDD
  • Alternatives to TDD
  • Test metrics
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Key benefits

  • Write Go test suites using popular mocking and testing frameworks
  • Leverage TDD to implement testing at all levels of web applications and microservices architecture
  • Master the art of writing tests that cover edge cases and concurrent code

Description

Experienced developers understand the importance of designing a comprehensive testing strategy to ensure efficient shipping and maintaining services in production. This book shows you how to utilize test-driven development (TDD), a widely adopted industry practice, for testing your Go apps at different levels. You’ll also explore challenges faced in testing concurrent code, and learn how to leverage generics and write fuzz tests. The book begins by teaching you how to use TDD to tackle various problems, from simple mathematical functions to web apps. You’ll then learn how to structure and run your unit tests using Go’s standard testing library, and explore two popular testing frameworks, Testify and Ginkgo. You’ll also implement test suites using table-driven testing, a popular Go technique. As you advance, you’ll write and run behavior-driven development (BDD) tests using Ginkgo and Godog. Finally, you’ll explore the tricky aspects of implementing and testing TDD in production, such as refactoring your code and testing microservices architecture with contract testing implemented with Pact. All these techniques will be demonstrated using an example REST API, as well as smaller bespoke code examples. By the end of this book, you’ll have learned how to design and implement a comprehensive testing strategy for your Go applications and microservices architecture.

Who is this book for?

If you are an intermediate-level developer or software testing professional who knows Go fundamentals and is looking to deliver projects with Go, then this book is for you. Knowledge of Go syntax, structs, functions, and interfaces will help you get the most out of this book.

What you will learn

  • Create practical Go unit tests using mocks and assertions with Testify
  • Build table-driven test suites for HTTP web applications
  • Write BDD-style tests using the Ginkgo testing framework
  • Use the Godog testing framework to reliably test web applications
  • Verify microservices architecture using Pact contract testing
  • Develop tests that cover edge cases using property testing and fuzzing

Product Details

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Publication date : Apr 28, 2023
Length: 342 pages
Edition : 1st
Language : English
ISBN-13 : 9781803247878
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Product Details

Publication date : Apr 28, 2023
Length: 342 pages
Edition : 1st
Language : English
ISBN-13 : 9781803247878
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Frequently bought together


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Event-Driven Architecture in Golang
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Table of Contents

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

Customer reviews

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Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.9
(16 Ratings)
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arsalan May 16, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The testing approaches are covered in full in this book, along with how to set up and execute your unit tests using Go's built-in testing library.It clearly describes how to develop and put into practise a thorough testing plan for your Go applications and microservices architecture.It's a great resource for all go devs looking to adopt the TDD method. This book is a useful resource for people looking for a good source in this field due to the author's experience, clear explanations, and applicable examples.Highly recommend.
Amazon Verified review Amazon
Rhys Dunne May 12, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
As a newbie with Go I found this book of great benefit.Adelina has covered the fundamentals of coding and design, not just testing.Testing in particular I found I found challenging to understand, as I don’t feel the testing library provides much guidance by itself. I appreciated that the book covered the entire testing pyramid and applies it to web apps. Really looking forward to digging into the code on GitHub too!
Amazon Verified review Amazon
Krishnan Raghavan Sep 01, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Test Driven Development has been used by the industry for a long time now to ensure that deliveries are made as close a perfection as possible. Every developer/company tries to ensure that TDD is part of the development process and makes it a primary part of engineering. This book addresses the need to understand how to implement TDD while using Go for development.The book is split into three parts. The first part starts with covering the basics of TDD as part of Chapter 1. This chapter covers the principles and the benefits of using TDD. Continuing from Chapter 1, Chapter 2 teaches the readers the essential knowledge to understand how to write test cases using Go's standard testing library. Chapter 3 builds on the knowledge acquired in the previous chapter and shows the reader how to write test cases for code that has dependencies. It covers interfaces, assertions, and the importance of generating and using mocks to write test cases. Chapter 4 teaches the readers how to build test suites using the popular Go testing technique of table-driven design.The second part covers the integration and end-to-end testing. It starts with Chapter 5 where the reader understands how to include interaction between components using integration testing. Chapter 6 focuses on End-To-End testing while building a REST API application. As part of this chapter, the reader also understands the use of Docker, Database Interaction, and end-to-end testing. Chapter 7 is about the Refactoring of code in Go and how TDD can be used to facilitate this process. Chapter 8 covers a very important topic of Testing Microservice Architecture, and the challenges associated with it, and also introduces Contract Testing used to verify the integration between services.The third and the last part of the book covers Advanced Testing Techniques. Chapter 9 helps the reader understand the challenges of testing/verifying concurrent Go code. Chapter 10 is about testing edge cases and scenarios by making use of fuzz testing and property-based testing. Chapter 11 helps the reader understand the usage and testing of Go Generics.This is a wonderfully written book that will help the reader understand how to implement TDD using the Go Programming Language. Kudos to Adelina Simion for writing a much-needed book in this area.
Amazon Verified review Amazon
Dave Banerjee Jun 06, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Testing with Go includes everything you need to test every aspect of a Go program. Many of the techniques in this book can also be applied to other software and languages! This book provides a solid testing foundation necessary for building high-quality software with Go.
Amazon Verified review Amazon
Harry May 08, 2023
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I got this book on a recommendation from a friend, suggesting it would be a good entry to the language. Having just finished it, I can confirm it was a great suggestion - the book covers testing principles in depth (applicable to all languages), then holds your hand getting into the nuts and bolts of Go, and Go testing with the Github resources. I found the book easy to follow, though some video resources might have been a nice addition to code along to.Definitely would recommend as a really helpful intro to Go and Go testing.
Amazon Verified review Amazon
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